Difference between revisions of "List of GEOS-FP met fields"

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GEOS-FP (formerly named [[GEOS-5.7.2]]) is the latest update of the GEOS-5 met data product. It has finer native horizontal resolution (0.25° lat x 0.3125° lon) and temporal resolution (hourly data and 3-hourly data) than older GMAO met products such as [[GEOS-5]], [[MERRA|the MERRA reanalysis]], and [[GMAO GEOS-4|GEOS-4]].
+
The GMAO "forward processing" (aka GMAO FP or GEOS5-FP) met field product is the latest update of the GMAO GEOS-5 met data product. GEOS FP has finer native horizontal resolution (0.25° lat x 0.3125° lon) and temporal resolution (hourly data and 3-hourly data) than older GMAO met products such as [[GEOS-5]], [[MERRA|the MERRA reanalysis]], and [[GMAO GEOS-4|GEOS-4]]. See GMAO's [https://gmao.gsfc.nasa.gov/GMAO_products/NRT_products.php GEOS Near-Real Time Data Products] page for more details.
  
−
NOTE: GEOS-Chem only uses a subset of the entire [https://gmao.gsfc.nasa.gov/products/documents/GEOS_5_FP_File_Specification_ON4v1_0.pdf GEOS-FP data archive].  On this page we list the [[GEOS-FP]] met fields that archive for use with GEOS-Chem.  
+
NOTE: GEOS-Chem only uses a subset of the entire [https://gmao.gsfc.nasa.gov/products/documents/GEOS_5_FP_File_Specification_ON4v1_0.pdf GMAO FP data archive].  On this page we list the [[GEOS-FP|GMAO FP]] met fields that archive for use with GEOS-Chem.
 +
 
 +
'''GEOS-FP is the name of our GEOS-Chem met field archive of the GMAO FP product.'''  In the discussion below, we will use the terminology "GEOS-FP" in place of "GMAO FP" or "GEOS-5 FP".
  
 
For more information, please see:
 
For more information, please see:
  
−
#[https://gmao.gsfc.nasa.gov/products/documents/GEOS_5_FP_File_Specification_ON4v1_0.pdf GEOS5-FP file specification document, Version 1.0 (11 Jun 2013)]
+
#[http://acmg.seas.harvard.edu/geos/wiki_docs/geos5/GEOS_5_FP_File_Specification_ON4v1_0.pdf GEOS5-FP file specification document, Version 1.0 (11 Jun 2013)]
 
#[[GEOS-FP|GEOS-FP page on the GEOS-Chem wiki]]
 
#[[GEOS-FP|GEOS-FP page on the GEOS-Chem wiki]]
−
#[[GEOS-5.7.2|GEOS-5.7.2 page on the GEOS-Chem wiki]]
 
−
#[[MERRA|MERRA page on the GEOS-Chem wiki]]
 
−
#[[GEOS-5|GEOS-5.2.0 page on the GEOS-Chem wiki]]
 
 
#[[Overview of GMAO met data products]]
 
#[[Overview of GMAO met data products]]
 +
#[http://acmg.seas.harvard.edu/geos/wiki_docs/geos5/GEOS5_Glossary_11_01_2011.pdf Glossary of variables produced by the GEOS-DAS]
 +
#[http://gmao.gsfc.nasa.gov/pubs/docs/tm28.pdf Evolution of the GEOS-5 system from GEOS-5.2.0/MERRA to GEOS-5.7.2 (aka "Fortuna")]
 +
  
 
== Constant fields ==
 
== Constant fields ==
  
−
#These data will be [[GEOS-FP#GEOS-FP_time_archiving|timestamped]] 2011/01/01 at 00:00 GMT for convenience.
+
'''''Overview:'''''
−
#These are time-invariant constant fields, which will have the following filenames:
+
 
−
#*<tt>GEOS572.20110101.CN.025x03125.CH.nc</tt>&nbsp; (Native resolution nested CH grid)
+
{| border=1 cellspacing=0 cellpadding=5
−
#*<tt>GEOS572.20110101.CN.025x03125.NA.nc</tt>&nbsp; (Native resolution nested NA grid)
+
|-valign="top"
−
#*<tt>GEOS572.20110101.CN.2x25.nc</tt>&nbsp; (2&deg; x 2.5&deg; global grid)
+
!width="300px" bgcolor="#CCCCCC"|Quantities archived in this file type:
−
#*<tt>GEOS572.20110101.CN.4x5.nc</tt>&nbsp; (4&deg; x 5&deg; global grid)
+
|width="700px"|
−
#*At present (Aug 2013), the file names still reflect the older GEOS572 nomenclature.  We will correct this at a future date.
+
*Time-invariant fields
−
#The '''[[GEOS-FP#GEOS-FP data file collections|Collection]]''' is a tag that indicates in which files a particular data field can be found.  A GEOS-FP data file is created for each new date and time.  Therefore, a day's worth of hourly data will be spread over 24 individual files and a day's worth of 3-hourly data will be spread over 8 individual files.
+
**These are mostly parameters pertaining to the horizontal grid
 +
|-valign="top"
 +
!bgcolor="#CCCCCC"|File naming convention:
 +
|
 +
*<tt>GEOSFP.20110101.CN.025x03125.CH.nc</tt>&nbsp; (Native resolution nested CH grid)
 +
*<tt>GEOSFP.20110101.CN.025x03125.EU.nc</tt>&nbsp; (Native resolution nested EU grid)
 +
*<tt>GEOSFP.20110101.CN.025x03125.NA.nc</tt>&nbsp; (Native resolution nested NA grid)
 +
*<tt>GEOSFP.20110101.CN.2x25.nc</tt>&nbsp; (2&deg; x 2.5&deg; global grid)
 +
*<tt>GEOSFP.20110101.CN.4x5.nc</tt>&nbsp; (4&deg; x 5&deg; global grid)
 +
|-valign="top"
 +
!bgcolor="#CCCCCC"|[[GEOS-FP#GEOS-FP time archiving|Timestamps:]]
 +
|
 +
*For convenience, we have assigned these data timestamp of <tt>2011/01/01 00:00 UTC</tt>
 +
|}
 +
 
  
 +
'''''List of GEOS-FP data fields in this file type:'''''
  
 
{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
Line 28: Line 45:
 
!width="100px"|Field
 
!width="100px"|Field
 
!width="80px"|Units
 
!width="80px"|Units
−
!width="110px"|Collection
+
!width="110px"|[[GEOS-FP#GEOS-FP data file collections|Collection]]
 
!width="300px"|Description
 
!width="300px"|Description
 
!width="300px"|Notes
 
!width="300px"|Notes
Line 56: Line 73:
  
 
|-valign="top"
 
|-valign="top"
−
|FRLANDIC
+
|FRLANDIC(E)
 
|1
 
|1
 
|const_2d_asm_Nx
 
|const_2d_asm_Nx
 
|Fraction of land ice type in grid box
 
|Fraction of land ice type in grid box
 
|
 
|
 +
*The original name in the GEOS-FP raw data files is FRLANDICE.
 +
*We shorten this to FRLANDIC for GEOS-Chem.  GEOS-Chem requires 8-character met field names.
 
|
 
|
 
*Hg simulation
 
*Hg simulation
Line 89: Line 108:
 
|}
 
|}
  
−
--[[User:Bmy|Bob Y.]] 16:56, 15 August 2013 (EDT)
+
--[[User:Bmy|Bob Y.]] 14:01, 21 October 2013 (EDT)
  
 
== A1 fields ==
 
== A1 fields ==
  
−
NOTES:
+
'''''Overview:'''''
−
#These are 1-hr time-averaged fields, which will have the following filenames:
+
−
#*<tt>GEOS572.YYYYMMDD.A1.025x03125.CH.nc</tt>&nbsp; (Native resolution nested China grid)
+
−
#*<tt>GEOS572.YYYYMMDD.A1.025x03125.NA.nc</tt>&nbsp; (Native resolution nested China grid)
+
−
#*<tt>GEOS572.YYYYMMDD.A1.2x25.nc</tt>&nbsp; (2&deg; x 2.5&deg; global grid)
+
−
#*<tt>GEOS572.YYYYMMDD.A1.4x5.nc</tt>&nbsp; (4&deg; x 5&deg; global grid)
+
−
#*At present (Aug 2013), the file names still reflect the older GEOS572 nomenclature.  We will correct this at a future date.
+
−
#All A1 fields are 2-dimensional (lon,lat)
+
−
#'''[[GEOS-FP#GEOS-FP time archiving|Timestamps]]''' (i.e. center of averaging period): 00:30, 01:30, 02:30 ... 23:30 GMT
+
−
# The '''[[GEOS-FP#GEOS-FP data file collections|Collection]]''' is a tag that indicates in which files a particular data field can be found.  A GEOS-FP "raw" data file is created for each new date and time.  Therefore, a day's worth of hourly data will be spread over 24 individual files and a day's worth of 3-hourly data will be spread over 8 individual files.
+
  
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|-valign="top"
 +
!width="300px" bgcolor="#CCCCCC"|Quantities archived in this file type:
 +
|width="700px"|
 +
*Various surface fields
 +
|-valign="top"
 +
!bgcolor="#CCCCCC"|File naming convention:
 +
|
 +
*<tt>GEOSFP.YYYYMMDD.A1.025x03125.CH.nc</tt>&nbsp; (Native resolution nested CH grid)
 +
*<tt>GEOSFP.YYYYMMDD.A1.025x03125.EU.nc</tt>&nbsp; (Native resolution nested EU grid)
 +
*<tt>GEOSFP.YYYYMMDD.A1.025x03125.NA.nc</tt>&nbsp; (Native resolution nested NA grid)
 +
*<tt>GEOSFP.YYYYMMDD.A1.2x25.nc</tt>&nbsp; (2&deg; x 2.5&deg; global grid)
 +
*<tt>GEOSFP.YYYYMMDD.A1.4x5.nc</tt>&nbsp; (4&deg; x 5&deg; global grid)
 +
|-valign="top"
 +
!bgcolor="#CCCCCC"|[[GEOS-FP#GEOS-FP time archiving|Timestamps]]:
 +
|
 +
*00:30, 01:30, 02:30, 3:30, 4:30, 5:30 ... 23:30 GMT
 +
**These represent the center of the 1-hour averaging period
 +
|}
 +
 +
 +
'''''List of GEOS-FP data fields in this file type:'''''
  
 
{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
Line 109: Line 141:
 
!width="100px"|Field
 
!width="100px"|Field
 
!width="80px"|Units
 
!width="80px"|Units
−
!width="110px"|Collection
+
!width="110px"|[[GEOS-FP#GEOS-FP data file collections|Collection]]
 
!width="300px"|Description
 
!width="300px"|Description
 
!width="300px"|Notes
 
!width="300px"|Notes
Line 129: Line 161:
 
|tavg1_2d_rad_Nx
 
|tavg1_2d_rad_Nx
 
|Total cloud fraction
 
|Total cloud fraction
−
|For all intents and purposes, CLDTOT = the column sum of CLOUD, but at 1-hour resolution
+
|
 +
*For all intents and purposes, CLDTOT = the column sum of CLOUD, but at 1-hour resolution.
 
|
 
|
 
*Photolysis
 
*Photolysis
Line 157: Line 190:
 
|tavg1_2d_flx_Nx
 
|tavg1_2d_flx_Nx
 
|Ice-covered fraction of tile (i.e. sea ice fraction)
 
|Ice-covered fraction of tile (i.e. sea ice fraction)
−
|Used to create the binned SEAICE** fields listed below
+
|
 +
*We bin FRSEAICE to create the SEAICE** fields listed below.
 
|
 
|
 
*Hg simulation
 
*Hg simulation
Line 213: Line 247:
 
|tavg1_2d_lnd_Nx
 
|tavg1_2d_lnd_Nx
 
|Leaf area index
 
|Leaf area index
−
|NOTE: GEOS-Chem uses MODIS LAI instead of the GEOS-FP product
+
|
 +
*NOTE: GEOS-Chem uses MODIS LAI instead of the GEOS-FP LAI..
 
|
 
|
 
*Kept for diagnostics
 
*Kept for diagnostics
Line 228: Line 263:
 
|-valign="top"
 
|-valign="top"
 
|LWI
 
|LWI
−
|unitless
+
|1
 
| -
 
| -
 
|Land/water/ice flags
 
|Land/water/ice flags
  
 
|
 
|
−
*Derived from the FRSEAICE, FROCEAN, and FRLAND fields.   
+
*We derive LWI from the FRSEAICE, FROCEAN, and FRLAND fields.   
−
*GEOS-Chem needs LWI for backwards compatibility with older met products.  
+
*GEOS-Chem needs LWI for backwards compatibility.  
 
|
 
|
 
*To determine the overall surface type in a grid box
 
*To determine the overall surface type in a grid box
Line 276: Line 311:
 
|-valign="top"
 
|-valign="top"
 
|PRECANV       
 
|PRECANV       
−
|kg m<sup>-2</sup> s<sup>-2</sup>
+
|kg m<sup>-2</sup> s<sup>-1</sup>
 
|tavg1_2d_flx_Nx
 
|tavg1_2d_flx_Nx
 
|Anvil precipitation
 
|Anvil precipitation
 
|
 
|
 +
*A fix was made on 27 Sep 2019 to the processing code to correct units from [kg m<sup>-2</sup> s<sup>-2</sup>] to [kg m<sup>-2</sup> s<sup>-1</sup>].
 +
*Units are converted to mm/day in GEOS-Chem.
 
|
 
|
 
*Kept for diagnostics
 
*Kept for diagnostics
Line 285: Line 322:
 
|-valign="top"
 
|-valign="top"
 
|PRECCON
 
|PRECCON
−
|kg m<sup>-2</sup> s<sup>-2</sup>
+
|kg m<sup>-2</sup> s<sup>-1</sup>
 
|tavg1_2d_flx_Nx
 
|tavg1_2d_flx_Nx
 
|Convective precipitation
 
|Convective precipitation
 
|
 
|
 +
*A fix was made on 27 Sep 2019 to the processing code to correct units from [kg m<sup>-2</sup> s<sup>-2</sup>] to [kg m<sup>-2</sup> s<sup>-1</sup>].
 +
*Units are converted to mm/day in GEOS-Chem.
 
|
 
|
 
*Soil NOx emissions
 
*Soil NOx emissions
Line 295: Line 334:
 
|-valign="top"
 
|-valign="top"
 
|PRECLSC
 
|PRECLSC
−
|kg m<sup>-2</sup> s<sup>-2</sup>
+
|kg m<sup>-2</sup> s<sup>-1</sup>
 
|tavg1_2d_flx_Nx
 
|tavg1_2d_flx_Nx
 
|Non-anvil large-scale precipitation  
 
|Non-anvil large-scale precipitation  
 
|
 
|
 +
*A fix was made on 27 Sep 2019 to the processing code to correct units from [kg m<sup>-2</sup> s<sup>-2</sup>] to [kg m<sup>-2</sup> s<sup>-1</sup>].
 +
*Units are converted to mm/day in GEOS-Chem.
 
|
 
|
 
*Kept for diagnostics
 
*Kept for diagnostics
Line 304: Line 345:
 
|-valign="top"
 
|-valign="top"
 
|PRECSNO
 
|PRECSNO
−
|kg m<sup>-2</sup> s<sup>-2</sup>
+
|kg m<sup>-2</sup> s<sup>-1</sup>
 
|tavg1_2d_flx_Nx
 
|tavg1_2d_flx_Nx
 
|Snowfall
 
|Snowfall
 
|
 
|
 +
*A fix was made on 27 Sep 2019 to the processing code to correct units from [kg m<sup>-2</sup> s<sup>-2</sup>] to [kg m<sup>-2</sup> s<sup>-1</sup>].
 +
*Units are converted to mm/day in GEOS-Chem.
 
|
 
|
 
*Kept for diagnostics
 
*Kept for diagnostics
Line 313: Line 356:
 
|-valign="top"
 
|-valign="top"
 
|PRECTOT
 
|PRECTOT
−
|kg m<sup>-2</sup> s<sup>-2</sup>
+
|kg m<sup>-2</sup> s<sup>-1</sup>
 
|tavg1_2d_flx_Nx
 
|tavg1_2d_flx_Nx
 
|Total precipitation
 
|Total precipitation
 
|
 
|
 +
*A fix was made on 27 Sep 2019 to the processing code to correct units from [kg m<sup>-2</sup> s<sup>-2</sup>] to [kg m<sup>-2</sup> s<sup>-1</sup>].
 +
*Units are converted to mm/day in GEOS-Chem.
 
|
 
|
 
*Soil NOx emissions
 
*Soil NOx emissions
Line 344: Line 389:
 
| -
 
| -
 
|Fraction of grid box that has < 10% sea ice coverage
 
|Fraction of grid box that has < 10% sea ice coverage
−
|[[#Fractional sea ice|Created by separating FRSEAICE into bins]]
+
|
 +
*[[#Fractional sea ice|We create this by binning FRSEAICE.]]
 
|
 
|
 
*Arctic simulations
 
*Arctic simulations
Line 354: Line 400:
 
| -
 
| -
 
|Fraction of grid box that has 10-20% sea ice coverage
 
|Fraction of grid box that has 10-20% sea ice coverage
−
|Created by separating FRSEAICE into bins
+
|
 +
*[[#Fractional sea ice|We create this by binning FRSEAICE.]]
 
|
 
|
 
*Arctic simulations
 
*Arctic simulations
−
*Planeflight diagnostics
+
*[[Planeflight diagnostic]]
  
 
|-valign="top"
 
|-valign="top"
Line 364: Line 411:
 
| -
 
| -
 
|Fraction of grid box that has 20-30% sea ice coverage
 
|Fraction of grid box that has 20-30% sea ice coverage
−
|Created by separating FRSEAICE into bins
+
|
 +
*[[#Fractional sea ice|We create this by binning FRSEAICE.]]
 
|
 
|
 
*Arctic simulations
 
*Arctic simulations
−
*Planeflight diagnostics
+
*[[Planeflight diagnostic]]
  
 
|-valign="top"
 
|-valign="top"
Line 374: Line 422:
 
| -
 
| -
 
|Fraction of grid box that has 30-40% sea ice coverage
 
|Fraction of grid box that has 30-40% sea ice coverage
−
|Created by separating FRSEAICE into bins
+
|
 +
*[[#Fractional sea ice|We create this by binning FRSEAICE.]]
 
|
 
|
 
*Arctic simulations
 
*Arctic simulations
−
*Planeflight diagnostics
+
*[[Planeflight diagnostic]]
  
 
|-valign="top"
 
|-valign="top"
Line 384: Line 433:
 
| -
 
| -
 
|Fraction of grid box that has 40-50% sea ice coverage
 
|Fraction of grid box that has 40-50% sea ice coverage
−
|Created by separating FRSEAICE into bins
+
|
 +
*[[#Fractional sea ice|We create this by binning FRSEAICE.]]
 
|
 
|
 
*Arctic simulations
 
*Arctic simulations
−
*Planeflight diagnostics
+
*[[Planeflight diagnostic]]
  
 
|-valign="top"
 
|-valign="top"
Line 394: Line 444:
 
| -
 
| -
 
|Fraction of grid box that has 50-60% sea ice coverage
 
|Fraction of grid box that has 50-60% sea ice coverage
−
|Created by separating FRSEAICE into bins
+
|
 +
*[[#Fractional sea ice|We create this by binning FRSEAICE.]]
 
|
 
|
 
*Arctic simulations
 
*Arctic simulations
−
*Planeflight diagnostics
+
*[[Planeflight diagnostic]]
  
 
|-valign="top"
 
|-valign="top"
Line 404: Line 455:
 
| -
 
| -
 
|Fraction of grid box that has 60-70% sea ice coverage
 
|Fraction of grid box that has 60-70% sea ice coverage
−
|Created by separating FRSEAICE into bins
+
|
 +
*[[#Fractional sea ice|We create this by binning FRSEAICE.]]
 
|
 
|
 
*Arctic simulations
 
*Arctic simulations
−
*Planeflight diagnostics
+
*[[Planeflight diagnostic]]
  
 
|-valign="top"
 
|-valign="top"
Line 414: Line 466:
 
| -
 
| -
 
|Fraction of grid box that has 70-80% sea ice coverage
 
|Fraction of grid box that has 70-80% sea ice coverage
−
|Created by separating FRSEAICE into bins
+
|
 +
*[[#Fractional sea ice|We create this by binning FRSEAICE.]]
 
|
 
|
 
*Arctic simulations
 
*Arctic simulations
−
*Planeflight diagnostics
+
*[[Planeflight diagnostic]]
  
 
|-valign="top"
 
|-valign="top"
Line 424: Line 477:
 
| -
 
| -
 
|Fraction of grid box that has 80-90% sea ice coverage
 
|Fraction of grid box that has 80-90% sea ice coverage
−
|Created by separating FRSEAICE into bins
+
|
 +
*[[#Fractional sea ice|We create this by binning FRSEAICE.]]
 
|
 
|
 
*Arctic simulations
 
*Arctic simulations
−
*Planeflight diagnostics
+
*[[Planeflight diagnostic]]
  
 
|-valign="top"
 
|-valign="top"
Line 434: Line 488:
 
| -
 
| -
 
|Fraction of grid box that has > 90% sea ice coverage
 
|Fraction of grid box that has > 90% sea ice coverage
−
|Created by separating FRSEAICE into bins
+
|
 +
*[[#Fractional sea ice|We create this by binning FRSEAICE.]]
 
|
 
|
 
*Arctic simulations
 
*Arctic simulations
−
*Planeflight diagnostics
+
*[[Planeflight diagnostic]]
  
 
|-valign="top"
 
|-valign="top"
Line 445: Line 500:
 
|Sea level pressure
 
|Sea level pressure
 
|
 
|
−
*Original units are Pa
+
*Original units of SLP are Pa.
−
*We convert Pa -> hPa because GEOS-Chem expects hPa
+
*We convert Pa -> hPa because GEOS-Chem expects hPa.
 
|
 
|
 
*Kept for diagnostics
 
*Kept for diagnostics
Line 455: Line 510:
 
|tavg1_2d_lnd_Nx
 
|tavg1_2d_lnd_Nx
 
|Snow depth
 
|Snow depth
 +
|
 
|
 
|
 
*Kept for diagnostics
 
*Kept for diagnostics
Line 472: Line 528:
 
|SWGDN
 
|SWGDN
 
|W m<sup>-2</sup>
 
|W m<sup>-2</sup>
−
|Surface incident shortwave flux
 
 
|tavg1_2d_rad_Nx
 
|tavg1_2d_rad_Nx
−
|GEOS-Chem carries this as <tt>State_Met%RADSWG</tt>
+
|Surface incident shortwave flux
 +
|
 +
*GEOS-Chem carries this as <tt>State_Met%RADSWG</tt>
 
|
 
|
 
*Soil NOx emissions
 
*Soil NOx emissions
Line 481: Line 538:
  
 
|-valign="top"
 
|-valign="top"
−
|SWGNT
+
|TO3
−
|W m<sup>-2</sup>
+
|Dobsons
−
|tavg1_2d_rad_Nx
+
|tavg1_2d_slv_Nx
−
|Surface net downward shortwave flux
+
|Total column ozone
 +
|  
 
|
 
|
−
*Kept for diagnostics
+
*Used as input to photolysis
  
 
|-valign="top"
 
|-valign="top"
Line 494: Line 552:
 
|T based tropopause pressure
 
|T based tropopause pressure
 
|
 
|
−
*Original units are Pa
+
*Original units of TROPPT are Pa.
−
*We convert Pa -> hPa because GEOS-Chem expects hPa
+
*We convert Pa -> hPa because GEOS-Chem expects hPa.
 
|
 
|
 
*Used to determine tropopause height
 
*Used to determine tropopause height
Line 504: Line 562:
 
|tavg1_2d_slv_Nx
 
|tavg1_2d_slv_Nx
 
|Surface skin temperature
 
|Surface skin temperature
−
|GEOS-Chem carries this as <tt>State_Met%TSKIN</tt>
+
|
 +
*GEOS-Chem carries this as <tt>State_Met%TSKIN</tt>
 
|
 
|
 
*CH4 simulation
 
*CH4 simulation
Line 557: Line 616:
 
|tavg1_2d_slv_Nx
 
|tavg1_2d_slv_Nx
 
|10-meter northward wind
 
|10-meter northward wind
 +
|
 
|
 
|
 
*Dry deposition
 
*Dry deposition
Line 568: Line 628:
 
|m
 
|m
 
|tavg1_2d_flx_Nx
 
|tavg1_2d_flx_Nx
−
|
 
 
|Roughness length, momentum
 
|Roughness length, momentum
 +
|
 
|
 
|
 
*Dry deposition
 
*Dry deposition
Line 575: Line 635:
 
|}
 
|}
  
−
--[[User:Bmy|Bob Y.]] 11:12, 16 August 2013 (EDT)
+
--[[User:Bmy|Bob Y.]] 14:02, 21 October 2013 (EDT)
  
 
== A3cld fields ==
 
== A3cld fields ==
  
−
* These are 3-hr time-averaged fields, which will have the following filenames:
+
'''''Overview:'''''
−
**<tt>GEOS572.YYYYMMDD.A3cld.025x03125.SEA4CRS.nc</tt>&nbsp; (Native resolution, nested China grid)
+
−
**<tt>GEOS572.YYYYMMDD.A3cld.2x25.nc</tt>&nbsp; (2&deg; x 2.5&deg; global grid)
+
−
**<tt>GEOS572.YYYYMMDD.A3cld.4x5.nc</tt>&nbsp; (4&deg; x 5&deg; global grid)
+
−
* All A3 fields are 3-dimensional (lon,lat,alt).  Data is placed at the vertical center of each grid box.
+
−
* '''[[GEOS-5.7.2#GEOS-5.7.2 time archiving|Timestamps]]''' (i.e. center of averaging period): 01:30, 04:30, 07:30, 10:30, 13:30, 16:30, 19:30, 22:30 GMT
+
−
* The '''[[GEOS-5.7.2#GEOS-5.7.2 data file collections|File Collection]]''' is a tag that indicates in which files a particular data field can be found.  A GEOS-5.7.2 "raw" data file is created for each new date and time.  Therefore, a day's worth of hourly data will be spread over 24 individual files and a day's worth of 3-hourly data will be spread over 8 individual files.
+
−
* The '''MERRA Field''' and '''MERRA Units''' refer to the equivalent data fields (and units) in the [[MERRA]] data archive for GEOS-Chem.  If a field is missing it does not necessarily mean that it was not produced in MERRA; it just means that we did not regrid it for use with GEOS-Chem.
+
  
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|-valign="top"
 +
!width="300px" bgcolor="#CCCCCC"|Quantities archived in this file type:
 +
|width="700px"|
 +
*Cloud parameters
 +
**Data are 3-dimensional, stored at the midpoint of each vertical level
 +
|-valign="top"
 +
!bgcolor="#CCCCCC"|File naming convention:
 +
|
 +
*<tt>GEOSFP.YYYYMMDD.A3cld.025x03125.CH.nc</tt>&nbsp; (Native resolution, nested CH grid)
 +
*<tt>GEOSFP.YYYYMMDD.A3cld.025x03125.EU.nc</tt>&nbsp; (Native resolution, nested EU grid)
 +
*<tt>GEOSFP.YYYYMMDD.A3cld.025x03125.NA.nc</tt>&nbsp; (Native resolution, nested NA grid)
 +
*<tt>GEOSFP.YYYYMMDD.A3cld.2x25.nc</tt>&nbsp; (2&deg; x 2.5&deg; global grid)
 +
*<tt>GEOSFP.YYYYMMDD.A3cld.4x5.nc</tt>&nbsp; (4&deg; x 5&deg; global grid)
 +
|-valign="top"
 +
!bgcolor="#CCCCCC"|[[GEOS-FP#GEOS-FP time archiving|Timestamps:]]
 +
|
 +
*01:30, 04:30, 07:30, 10:30, 13:30, 16:30, 19:30, 22:30 GMT
 +
**Timestamps represent the center of the 3-hour averaging period.
 +
 +
|}
 +
 +
 +
'''''List of GEOS-FP data fields in this file type:'''''
  
 
{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
 
|- bgcolor="#CCCCCC"
 
|- bgcolor="#CCCCCC"
−
!GEOS-5.7.2<br>Field
+
!width="100px"|Field
−
!GEOS-5.7.2<br>Units
+
!width="80px"|Units
−
!Description
+
!width="110px"|[[GEOS-FP#GEOS-FP_data_file_collections|Collection]]
−
!File collection
+
!width="300px"|Description
−
!Notes
+
!width="300px"|Notes
−
!MERRA<br>Field
+
!width="200px"|Where used in GEOS-Chem?
−
!MERRA<br>Units
+
  
 
|-valign="top"
 
|-valign="top"
 
|CLOUD
 
|CLOUD
−
|fraction
+
|1
−
|Total cloud fraction in grid box
+
 
|tavg3_3d_rad_Nv
 
|tavg3_3d_rad_Nv
−
|Regrid with [http://acmg.seas.harvard.edu/geos/wiki_docs/geos5/GEOS-5_cloud_regridding_equations.pdf Hongyu Liu's algorithm]
+
|Total cloud fraction in grid box
−
|CFLS + CFAN + CFCU
+
|
−
|fraction
+
*We regrid CLOUD w/ [http://acmg.seas.harvard.edu/geos/wiki_docs/geos5/GEOS-5_cloud_regridding_equations.pdf Hongyu Liu's algorithm].
 +
|
 +
*Photolysis
 +
*Chemistry
  
 
|-valign="top"
 
|-valign="top"
−
|QIAN
+
|OPTDEPTH
−
|kg kg<sup>-1</sup>
+
|1
−
|Cloud ice water mixing ratio - anvils
+
|none
−
|tavg3_3d_cld_Nv
+
|Total in-cloud optical depth (visible band)
−
|Used to construct QI
+
|
−
| -
+
*We create OPTDEPTH = TAUCLI + TAUCLW.
−
| -
+
*We regrid OPTDEPTH w/ [http://acmg.seas.harvard.edu/geos/wiki_docs/geos5/GEOS-5_cloud_regridding_equations.pdf Hongyu Liu's algorithm].
 +
|
 +
*Photolysis
 +
*Chemistry
  
 
|-valign="top"
 
|-valign="top"
−
|QILS
+
|QCCU
−
|kg kg<sup>-1</sup>
+
|1
−
|Cloud ice water mixing ratio - large-scale
+
 
|tavg3_3d_cld_Nv
 
|tavg3_3d_cld_Nv
−
|Used to construct QI
+
|Cloud condensate mixing ratio, convective updraft
−
| -
+
|
−
| -
+
*We regrid QCCU w/ [http://acmg.seas.harvard.edu/geos/wiki_docs/geos5/GEOS-5_cloud_regridding_equations.pdf Hongyu Liu's algorithm].
 +
|
 +
*Kept for diagnostics
  
 
|-valign="top"
 
|-valign="top"
−
|QLAN
+
|QI
 
|kg kg<sup>-1</sup>
 
|kg kg<sup>-1</sup>
−
|Cloud liquid water mixing ratio - anvils
+
|none
−
|tavg3_3d_cld_Nv
+
|Cloud ice water mixing ratio
−
|Used to construct QL
+
|
−
| -
+
*We create QI = QIAN + QILS, then regrid.
−
| -
+
|
 +
*Chemistry
 +
*Aerosol microphysics
  
 
|-valign="top"
 
|-valign="top"
−
|QLLS
+
|QL
 
|kg kg<sup>-1</sup>
 
|kg kg<sup>-1</sup>
−
|Cloud liquid water mixing ratio - large-scale
 
 
|tavg3_3d_cld_Nv
 
|tavg3_3d_cld_Nv
−
|Used to construct QL
+
|Cloud liquid water mixing ratio - anvils
−
| -
+
|
−
| -
+
*We create QL = QLAN + QLLS, then regrid.
−
 
+
|
 +
*Chemistry
 +
*Aerosol microphysics
  
 
|-valign="top"
 
|-valign="top"
 
|TAUCLI
 
|TAUCLI
−
|unitless
+
|1
−
|In-cloud ice cloud optical thickness (visible band)
+
 
|tavg3_3d_cld_Nv
 
|tavg3_3d_cld_Nv
−
|Regrid w/ [http://acmg.seas.harvard.edu/geos/wiki_docs/geos5/GEOS-5_cloud_regridding_equations.pdf Hongyu Liu's algorithm]
+
|In-cloud ice cloud optical thickness (visible band)
−
|TAUCLI
+
|
−
|unitless
+
*We use TAUCLI to create OPTDEPTH.
 +
*We regrid TAUCLI w/ [http://acmg.seas.harvard.edu/geos/wiki_docs/geos5/GEOS-5_cloud_regridding_equations.pdf Hongyu Liu's algorithm].
 +
|
 +
*Kept for diagnostics
  
 
|-valign="top"
 
|-valign="top"
 
|TAUCLW
 
|TAUCLW
−
|unitless
+
|1
−
|In-cloud liquid cloud optical thickness (visible band)
+
 
|tavg3_3d_cld_Nv
 
|tavg3_3d_cld_Nv
−
|Regrid w/ [http://acmg.seas.harvard.edu/geos/wiki_docs/geos5/GEOS-5_cloud_regridding_equations.pdf Hongyu Liu's algorithm]
+
|In-cloud liquid cloud optical thickness (visible band)
−
|TAUCLW
+
|
−
|unitless
+
*We use TAUCLW to create OPTDEPTH.
 +
*We regrid TAUCLW w/ [http://acmg.seas.harvard.edu/geos/wiki_docs/geos5/GEOS-5_cloud_regridding_equations.pdf Hongyu Liu's algorithm]
 +
|
 +
*Kept for diagnostics
  
−
|-valign="top" bgcolor="#cccccc"
+
|-valign="top" bgcolor="#CCFFFF"
−
!&nbsp;
+
 
!&nbsp;
 
!&nbsp;
−
!Derived fields
 
 
!&nbsp;
 
!&nbsp;
 
!&nbsp;
 
!&nbsp;
 +
!These fields are only used to create other A3cld fields.
 
!&nbsp;
 
!&nbsp;
 
!&nbsp;
 
!&nbsp;
  
 
|-valign="top"
 
|-valign="top"
−
|QI
+
|QIAN
 
|kg kg<sup>-1</sup>
 
|kg kg<sup>-1</sup>
−
|Cloud ice water mixing ratio
 
 
|tavg3_3d_cld_Nv
 
|tavg3_3d_cld_Nv
−
|QI = QIAN + QILS
+
|Cloud ice water mixing ratio - anvils
−
|QI
+
|
−
|kg kg<sup>-1</sup>
+
*We only use QIAN to construct QI.
 +
*We do not save QIAN to the A3cld files.
 +
|  
  
 
|-valign="top"
 
|-valign="top"
−
|QL
+
|QILS
 
|kg kg<sup>-1</sup>
 
|kg kg<sup>-1</sup>
−
|Cloud liquid water mixing ratio - anvils
 
 
|tavg3_3d_cld_Nv
 
|tavg3_3d_cld_Nv
−
|QL = QLAN + QLLS
+
|Cloud ice water mixing ratio - large-scale
−
|QL
+
|
−
|kg kg<sup>-1</sup>
+
*We only use QILS to construct QI.
 +
*We do not save QILS to the A3cld files.
 +
|  
  
 
|-valign="top"
 
|-valign="top"
−
|OPTDEPTH
+
|QLAN
−
|unitless
+
|kg kg<sup>-1</sup>
−
|Total in-cloud optical depth (visible band)
+
−
| -
+
−
|= TAUCLI + TAUCLW;<br>Regrid w/ [http://acmg.seas.harvard.edu/geos/wiki_docs/geos5/GEOS-5_cloud_regridding_equations.pdf Hongyu Liu's algorithm]
+
−
|OPTDEPTH
+
−
|unitless
+
−
 
+
−
|-valign="top" bgcolor="#cccccc"
+
−
!&nbsp;
+
−
!&nbsp;
+
−
!Fields we are considering adding
+
−
!&nbsp;
+
−
!&nbsp;
+
−
!&nbsp;
+
−
!&nbsp;
+
−
 
+
−
|-valign="top"
+
−
|CFAN
+
−
|fraction
+
−
|3D cloud fraction, anvils
+
 
|tavg3_3d_cld_Nv
 
|tavg3_3d_cld_Nv
−
|Regrid with [http://acmg.seas.harvard.edu/geos/wiki_docs/geos5/GEOS-5_cloud_regridding_equations.pdf Hongyu Liu's algorithm]
+
|Cloud liquid water mixing ratio - anvils
−
|CFAN
+
|
−
|fraction
+
*We only use QLAN to construct QL.
 +
*We do not save QLAN to the A3cld files.
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|CFCU
+
|QLLS
−
|fraction
+
|kg kg<sup>-1</sup>
−
|3D cloud fraction, convective
+
 
|tavg3_3d_cld_Nv
 
|tavg3_3d_cld_Nv
−
|Regrid with [http://acmg.seas.harvard.edu/geos/wiki_docs/geos5/GEOS-5_cloud_regridding_equations.pdf Hongyu Liu's algorithm]
+
|Cloud liquid water mixing ratio - large-scale
−
|CFCU
+
|
−
|fraction
+
*We only use QLLS to construct QL.
 +
*We do not save QLLS to the A3cld files.
 +
|  
  
−
|-valign="top"
 
−
|CFLS
 
−
|fraction
 
−
|3D cloud fraction, large-scale
 
−
|tavg3_3d_cld_Nv
 
−
|Regrid with [http://acmg.seas.harvard.edu/geos/wiki_docs/geos5/GEOS-5_cloud_regridding_equations.pdf Hongyu Liu's algorithm]
 
−
|CFLS
 
−
|fraction
 
−
 
−
|-valign="top"
 
−
|QCCU
 
−
|fraction
 
−
|Cloud condensate mixing ration, convective updraft
 
−
|tavg3_3d_cld_Nv
 
−
|Regrid with [http://acmg.seas.harvard.edu/geos/wiki_docs/geos5/GEOS-5_cloud_regridding_equations.pdf Hongyu Liu's algorithm]
 
−
| -
 
−
| -
 
 
|}
 
|}
  
−
--[[User:Bmy|Bob Y.]] 11:32, 29 February 2012 (EST)
+
--[[User:Bmy|Bob Y.]] 14:06, 21 October 2013 (EDT)
  
 
== A3dyn fields ==
 
== A3dyn fields ==
  
−
NOTES:
+
'''''Overview:'''''
−
# These are 3-hr time-averaged fields, which will have the following filenames:
+
−
#*<tt>GEOS572.YYYYMMDD.A3dyn.025x03125.CH.nc</tt> (Native resolution, nested China grid)
+
−
#*<tt>GEOS572.YYYYMMDD.A3dyn.025x03125.NA.nc</tt> (Native resolution, nested North America grid)
+
−
#*<tt>GEOS572.YYYYMMDD.A3dyn.2x25.nc</tt> (2&deg; x 2.5&deg; global grid)
+
−
#*<tt>GEOS572.YYYYMMDD.A3dyn.4x5.nc</tt> (4&deg; x 5&deg; global grid)
+
−
#*At present (Aug 2013), the file names still reflect the older GEOS572 nomenclature.  We will correct this at a future date.
+
−
# All A3 fields are 3-dimensional (lon,lat,alt).  Data is placed at the vertical center of each grid box.
+
−
# '''[[GEOS-FP#GEOS-FP time archiving|Timestamps]]''' (i.e. center of averaging period): 01:30, 04:30, 07:30, 10:30, 13:30, 16:30, 19:30, 22:30 GMT
+
−
# The '''[[GEOS-FP#GEOS-FP data file collections|Collection]]''' is a tag that indicates in which files a particular data field can be found.  A GEOS-FP data file is created for each new date and time.  Therefore, a day's worth of hourly data will be spread over 24 individual files and a day's worth of 3-hourly data will be spread over 8 individual files.
+
  
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|-valign="top"
 +
!width="300px" bgcolor="#CCCCCC"|Quantities archived in this file type:
 +
|width="700px"|
 +
*Dynamical fields (e.g. winds, relative humidity, detrainment fluxes)
 +
**Data are 3-dimensional, stored at the midpoint of each vertical level
 +
|-valign="top"
 +
!bgcolor="#CCCCCC"|File naming convention:
 +
|
 +
*<tt>GEOSFP.YYYYMMDD.A3dyn.025x03125.CH.nc</tt> (Native resolution, nested CH grid)
 +
*<tt>GEOSFP.YYYYMMDD.A3dyn.025x03125.EU.nc</tt> (Native resolution, nested EU grid)
 +
*<tt>GEOSFP.YYYYMMDD.A3dyn.025x03125.NA.nc</tt> (Native resolution, nested NA grid)
 +
*<tt>GEOSFP.YYYYMMDD.A3dyn.2x25.nc</tt> (2&deg; x 2.5&deg; global grid)
 +
*<tt>GEOSFP.YYYYMMDD.A3dyn.4x5.nc</tt> (4&deg; x 5&deg; global grid)
 +
|-valign="top"
 +
!bgcolor="#CCCCCC"|[[GEOS-FP#GEOS-FP time archiving|Timestamps:]]
 +
|
 +
*01:30, 04:30, 07:30, 10:30, 13:30, 16:30, 19:30, 22:30 GMT
 +
**Timestamps represent the center of the 3-hour averaging period.
 +
|}
 +
 +
 +
'''''List of GEOS-FP data fields in this file type:'''''
  
 
{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
Line 765: Line 836:
 
!width="100px"|Field
 
!width="100px"|Field
 
!width="80px"|Units
 
!width="80px"|Units
−
!width="100px"|Collection
+
!width="110px"|[[GEOS-FP#GEOS-FP_data_file_collections|Collection]]
 
!width="300px"|Description
 
!width="300px"|Description
 
!width="300px"|Notes
 
!width="300px"|Notes
 
!width="200px"|Where used in GEOS-Chem?
 
!width="200px"|Where used in GEOS-Chem?
−
 
−
|-valign="top"
 
−
|CMFMC
 
−
|kg m<sup>-2</sup> s<sup>-2</sup>
 
−
|tavg3_3d_mst_Ne
 
−
|Upward moist convective mass flux
 
−
|
 
−
|Cloud convection
 
  
 
|-valign="top"
 
|-valign="top"
Line 784: Line 847:
 
|Detrainment cloud mass flux
 
|Detrainment cloud mass flux
 
|
 
|
−
|Cloud convection
+
|
 +
*Cloud convection
  
 
|-valign="top"
 
|-valign="top"
Line 792: Line 856:
 
|Vertical pressure velocity
 
|Vertical pressure velocity
 
|
 
|
−
|Kept for diagnostics
+
|
 +
*Kept for diagnostics
  
 
|-valign="top"
 
|-valign="top"
 
|RH
 
|RH
−
|fraction
+
|1
 
|tavg3_3d_cld_Nv
 
|tavg3_3d_cld_Nv
 
|Relative humidity
 
|Relative humidity
−
|RH is computed as follows:
+
|GMAO computes RH as follows:
 
*T > 273.16 K: w/r/t liquid
 
*T > 273.16 K: w/r/t liquid
 
*T < 253.16 K: w/r/t ice
 
*T < 253.16 K: w/r/t ice
Line 815: Line 880:
 
|Eastward component of wind
 
|Eastward component of wind
 
|
 
|
−
|Advection
+
|
 +
*Advection
  
 
|-valign="top"
 
|-valign="top"
Line 823: Line 889:
 
|Northward component of wind
 
|Northward component of wind
 
|
 
|
−
|Advection
+
|
 +
*Advection
  
 
|}
 
|}
  
−
--[[User:Bmy|Bob Y.]] 17:03, 15 August 2013 (EDT)
+
--[[User:Bmy|Bob Y.]] 14:16, 21 October 2013 (EDT)
  
 
== A3mstC fields ==
 
== A3mstC fields ==
  
−
NOTES:
+
'''''Overview:'''''
−
# These are 3-hr time-averaged fields, which will have the following filenames:
+
−
#*<tt>GEOS572.YYYYMMDD.A3mstC.025x03125.CH.nc</tt> (Native resolution, nested China grid)
+
−
#*<tt>GEOS572.YYYYMMDD.A3mstC.025x03125.NA.nc</tt> (Native resolution, nested NA grid)
+
−
#*<tt>GEOS572.YYYYMMDD.A3mstC.2x25.nc</tt> (2&deg; x 2.5&deg; global grid)
+
−
#*<tt>GEOS572.YYYYMMDD.A3mstC.4x5.nc</tt> (4&deg; x 5&deg; global grid)
+
−
#*At present (Aug 2013), the file names still reflect the older GEOS572 nomenclature.  We will correct this at a future date.
+
−
# All A3 fields are 3-dimensional (lon,lat,alt).  Data is placed at the vertical center of each grid box.
+
−
* '''[[GEOS-FP#GEOS-FP time archiving|Timestamps]]''' (i.e. center of averaging period): 01:30, 04:30, 07:30, 10:30, 13:30, 16:30, 19:30, 22:30 GMT
+
−
* The '''[[GEOS-FP#GEOS-FP data file collections|Collection]]''' is a tag that indicates in which files a particular data field can be found.  A GEOS-FP "raw" data file is created for each new date and time.  Therefore, a day's worth of hourly data will be spread over 24 individual files and a day's worth of 3-hourly data will be spread over 8 individual files.
+
  
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|-valign="top"
 +
!width="300px" bgcolor="#CCCCCC"|Quantities archived in this file type:
 +
|width="700px"|
 +
*Precipitation and sublimation fields
 +
**Data are 3-dimensional, stored at the midpoint of each vertical level
 +
|-valign="top"
 +
!bgcolor="#CCCCCC"|File naming convention:
 +
|
 +
*<tt>GEOSFP.YYYYMMDD.A3mstC.025x03125.CH.nc</tt> (Native resolution, nested CH grid)
 +
*<tt>GEOSFP.YYYYMMDD.A3mstC.025x03125.EU.nc</tt> (Native resolution, nested EU grid)
 +
*<tt>GEOSFP.YYYYMMDD.A3mstC.025x03125.NA.nc</tt> (Native resolution, nested NA grid)
 +
*<tt>GEOSFP.YYYYMMDD.A3mstC.2x25.nc</tt> (2&deg; x 2.5&deg; global grid)
 +
*<tt>GEOSFP.YYYYMMDD.A3mstC.4x5.nc</tt> (4&deg; x 5&deg; global grid)
 +
|-valign="top"
 +
!bgcolor="#CCCCCC"|[[GEOS-FP#GEOS-FP time archiving|Timestamps:]]
 +
|
 +
*01:30, 04:30, 07:30, 10:30, 13:30, 16:30, 19:30, 22:30 GMT
 +
**Timestamps represent the center of the 3-hour averaging period.
 +
|}
 +
 +
 +
'''''List of GEOS-FP data fields in this file type:'''''
  
 
{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
Line 847: Line 928:
 
!width="100px"|Field
 
!width="100px"|Field
 
!width="80px"|Units
 
!width="80px"|Units
−
!width="100px"|Collection
+
!width="110px"|[[GEOS-FP#GEOS-FP_data_file_collections|Collection]]
 
!width="300px"|Description
 
!width="300px"|Description
 
!width="300px"|Notes
 
!width="300px"|Notes
Line 858: Line 939:
 
|Convective rainwater source  
 
|Convective rainwater source  
 
|
 
|
−
|Convective updraft scavenging
+
|
 +
*Conv. updraft scavenging
  
 
|-valign="top"
 
|-valign="top"
Line 866: Line 948:
 
|Large-scale rainwater source  
 
|Large-scale rainwater source  
 
|
 
|
−
|Wet deposition
+
|
 +
*Wet deposition
  
 
|-valign="top"
 
|-valign="top"
Line 874: Line 957:
 
|Evaporative submlimation of convective precipitation  
 
|Evaporative submlimation of convective precipitation  
 
|
 
|
−
|Convective updraft scavenging
+
|
 +
*Conv. updraft scavenging
  
 
|-valign="top"
 
|-valign="top"
Line 882: Line 966:
 
|Evaporation of precipitating LS & anvil condensate
 
|Evaporation of precipitating LS & anvil condensate
 
|
 
|
−
*In the GEOS-FP raw data files, this field is named REEVAPLSAN
+
*In the GEOS-FP raw data files, this field is named REEVAPLSAN.
 
*In the files created for GEOS-Chem, we change the field name to REEVAPLS.
 
*In the files created for GEOS-Chem, we change the field name to REEVAPLS.
−
*GEOS-Chem needs 8-character met field names for backwards compatibility.
+
*GEOS-Chem requires 8-character met field names for backwards compatibility.
−
|Wet deposition
+
|
 +
*Wet deposition
 
|}
 
|}
  
−
--[[User:Bmy|Bob Y.]] 16:43, 15 August 2013 (EDT)
+
--[[User:Bmy|Bob Y.]] ([[User talk:Bmy|talk]]) 19:14, 3 August 2015 (UTC)
  
 
== A3mstE fields ==
 
== A3mstE fields ==
  
−
NOTES:
+
'''''Overview:'''''
−
# These are 3-hr time-averaged fields, which will have the following filenames:
+
−
#*<tt>GEOS572.YYYYMMDD.A3mstE.025x03125.SEA4CRS.nc</tt>&nbsp; (Native resolution, nested China grid)
+
−
#*<tt>GEOS572.YYYYMMDD.A3mstE.2x25.nc</tt>&nbsp; (2&deg; x 2.5&deg; global grid)
+
−
#*<tt>GEOS572.YYYYMMDD.A3mstE.4x5.nc</tt>&nbsp; (4&deg; x 5&deg; global grid)
+
−
#*At present (Aug 2013), the file names still reflect the older GEOS572 nomenclature.  We will correct this at a future date.
+
−
# All A3 fields are 3-dimensional (lon,lat,alt).  Data is placed on the edges of the grid boxes.
+
−
# '''[[GEOS-FP#GEOS-FP time archiving|Timestamps]]''' (i.e. center of averaging period): 01:30, 04:30, 07:30, 10:30, 13:30, 16:30, 19:30, 22:30 GMT
+
−
# The '''[[GEOS-FP#GEOS-FP data file collections|File Collection]]''' is a tag that indicates in which files a particular data field can be found.  A GEOS-FP "raw" data file is created for each new date and time.  Therefore, a day's worth of hourly data will be spread over 24 individual files and a day's worth of 3-hourly data will be spread over 8 individual files.
+
  
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|-valign="top"
 +
!width="300px" bgcolor="#CCCCCC"|Quantities archived in this file type:
 +
|width="700px"|
 +
*Precipitation and convection fields
 +
**Data are 3-dimensional, stored at the edges of each vertical level
 +
|-valign="top"
 +
!bgcolor="#CCCCCC"|File naming convention:
 +
|
 +
*<tt>GEOSFP.YYYYMMDD.A3mstE.025x03125.CH.nc</tt>&nbsp; (Native resolution, nested CH grid)
 +
*<tt>GEOSFP.YYYYMMDD.A3mstE.025x03125.EU.nc</tt>&nbsp; (Native resolution, nested EU grid)
 +
*<tt>GEOSFP.YYYYMMDD.A3mstE.025x03125.NA.nc</tt>&nbsp; (Native resolution, nested NA grid)
 +
*<tt>GEOSFP.YYYYMMDD.A3mstE.2x25.nc</tt>&nbsp; (2&deg; x 2.5&deg; global grid)
 +
*<tt>GEOSFP.YYYYMMDD.A3mstE.4x5.nc</tt>&nbsp; (4&deg; x 5&deg; global grid)
 +
|-valign="top"
 +
!bgcolor="#CCCCCC"|[[GEOS-FP#GEOS-FP time archiving|Timestamps:]]
 +
|
 +
*01:30, 04:30, 07:30, 10:30, 13:30, 16:30, 19:30, 22:30 GMT
 +
**Timestamps represent the center of the 3-hour averaging period.
 +
|}
 +
 +
 +
'''''List of GEOS-FP data fields in this file type:'''''
  
 
{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
Line 908: Line 1,008:
 
!width="100px"|Field
 
!width="100px"|Field
 
!width="80px"|Units
 
!width="80px"|Units
−
!width="100px"|Collection
+
!width="110px"|[[GEOS-FP#GEOS-FP_data_file_collections|Collection]]
 
!width="300px"|Description
 
!width="300px"|Description
 
!width="300px"|Notes
 
!width="300px"|Notes
 
!width="200px"|Where used in GEOS-Chem?
 
!width="200px"|Where used in GEOS-Chem?
 +
 +
|-valign="top"
 +
|CMFMC
 +
|kg m<sup>-2</sup> s<sup>-2</sup>
 +
|tavg3_3d_mst_Ne
 +
|Upward moist convective mass flux
 +
|
 +
|
 +
*Cloud convection
  
 
|-valign="top"
 
|-valign="top"
Line 919: Line 1,028:
 
|3d flux of ice convective precipitation  
 
|3d flux of ice convective precipitation  
 
|
 
|
−
|Convective updraft scavenging
+
|
 +
*Conv. updraft scavenging
  
 
|-valign="top"
 
|-valign="top"
Line 927: Line 1,037:
 
|3d flux of ice non-convective precipitation  
 
|3d flux of ice non-convective precipitation  
 
|
 
|
−
|Wet deposition
+
|
 +
*Wet deposition
  
 
|-valign="top"
 
|-valign="top"
Line 935: Line 1,046:
 
|3d flux of liquid convective precipitation  
 
|3d flux of liquid convective precipitation  
 
|
 
|
−
|Convective updraft scavenging
+
|
 +
*Conv. updraft scavenging
  
 
|-valign="top"
 
|-valign="top"
Line 943: Line 1,055:
 
|3d flux of liquid non-convective precipitation  
 
|3d flux of liquid non-convective precipitation  
 
|
 
|
−
|Wet deposition
+
|
 +
*Wet deposition
  
 
|}
 
|}
  
−
--[[User:Bmy|Bob Y.]] 16:21, 15 August 2013 (EDT)
+
--[[User:Bmy|Bob Y.]] 14:18, 21 October 2013 (EDT)
  
 
== I3 fields ==
 
== I3 fields ==
  
−
NOTES:
+
'''''Overview:'''''
 +
 
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|-valign="top"
 +
!width="300px" bgcolor="#CCCCCC"|Quantities archived in this file type:
 +
|width="700px"|
 +
*Pressure, temperature, humidity
 +
**Data are 3-dimensional, stored at the midpoint of each vertical level
 +
|-valign="top"
 +
!bgcolor="#CCCCCC"|File naming convention:
 +
|
 +
*<tt>GEOSFP.YYYYMMDD.I3.05x0625.CH.nc</tt>&nbsp; (Native resolution, nested China grid)
 +
*<tt>GEOSFP.YYYYMMDD.I3.05x0625.EU.nc</tt>&nbsp; (Native resolution, nested Europe grid)
 +
*<tt>GEOSFP.YYYYMMDD.I3.05x0625.NA.nc</tt>&nbsp; (Native resolution, nested North America grid)
 +
*<tt>GEOSFP.YYYYMMDD.I3.05x0625.SE.nc</tt>&nbsp; (Native resolution, nested SE Asia grid)
 +
*<tt>GEOSFP.YYYYMMDD.I3.2x25.nc</tt>&nbsp; (2&deg; x 2.5&deg; global grid)
 +
*<tt>GEOSFP.YYYYMMDD.I3.4x5.nc</tt>&nbsp; (4&deg; x 5&deg; global grid)
 +
|-valign="top"
 +
!bgcolor="#CCCCCC"|[[GEOS-FP#GEOS-FP time archiving|Timestamps:]]
 +
|
 +
*00:00, 03:00, 06:00, 09:00, 12:00, 15:00, 18:00, 21:00 GMT
 +
**Timestamps represent instantaneous ("snapshot") values every 3 hours.
 +
|}
  
−
# These are 3-hr instantaneous fields, which will have the following filenames:
 
−
#*<tt>GEOS572.YYYYMMDD.I3.025x03125.CH.nc</tt>&nbsp; (Native resolution, nested China grid)
 
−
#*<tt>GEOS572.YYYYMMDD.I3.025x03125.NA.nc</tt>&nbsp; (Native resolution, nested North America grid)
 
−
#*<tt>GEOS572.YYYYMMDD.I3.2x25.nc</tt>&nbsp; (2&deg; x 2.5&deg; global grid)
 
−
#*<tt>GEOS572.YYYYMMDD.I3.4x5.nc</tt>&nbsp; (4&deg; x 5&deg; global grid)
 
−
#*At present (Aug 2013), the file names still reflect the older GEOS572 nomenclature.  We will correct this at a future date.
 
−
# I3 fields are either 2-dimensional (lon,lat) or 3D (lon,lat,alt).  3D data is placed at the vertical centers of the grid box.
 
−
# '''[[GEOS-FP#GEOS-FP time archiving|Timestamps]]:''' Instantaneous values at 00:00, 03:00, 06:00, 09:00, 12:00, 15:00, 18:00, 21:00 GMT
 
−
# The '''[[GEOS-FP#GEOS-FP data file collections|File Collection]]''' is a tag that indicates in which files a particular data field can be found.  A GEOS-FP "raw" data file is created for each new date and time.  Therefore, a day's worth of hourly data will be spread over 24 individual files and a day's worth of 3-hourly data will be spread over 8 individual files.
 
  
 +
'''''List of GEOS-FP data fields in this file type:'''''
  
 
{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
Line 968: Line 1,095:
 
!width="100px"|Field
 
!width="100px"|Field
 
!width="80px"|Units
 
!width="80px"|Units
−
!width="100px"|Collection
+
!width="100px"|[[GEOS-FP#GEOS-FP_data_file_collections|Collection]]
 
!width="300px"|Description
 
!width="300px"|Description
 
!width="300px"|Notes
 
!width="300px"|Notes
Line 979: Line 1,106:
 
|Surface pressure
 
|Surface pressure
 
|
 
|
−
*Original units in GEOS-FP raw data files are Pa
+
*Original units of PS are Pa.
−
*We convert Pa -> hPa, because GEOS-Chem expects hPa
+
*We convert Pa -> hPa, because GEOS-Chem expects hPa.
 
|
 
|
 
*Advection  
 
*Advection  
−
*+ Many other locations
+
*Many other locations
  
 
|-valign="top"
 
|-valign="top"
Line 991: Line 1,118:
 
|Ertel potential vorticity
 
|Ertel potential vorticity
 
|
 
|
−
*This field is labeled EPV in the GEOS-FP raw data files  
+
*This field is labeled EPV in the GEOS-FP raw data files.
−
*GEOS-Chem renames this to "PV" for backwards compatibility with older met products
+
*GEOS-Chem renames this to "PV" for backwards compatibility with older met products.
−
|Kept for diagnostics
+
|
 +
*Kept for diagnostics
  
 
|-valign="top"
 
|-valign="top"
Line 1,001: Line 1,129:
 
|Specific humidity
 
|Specific humidity
 
|In GEOS-Chem:
 
|In GEOS-Chem:
−
*QV at time t is saved into <tt>State_Met%SPHU1</tt>;
+
*QV at time t is converted to g/kg and saved into <tt>State_Met%SPHU1</tt>;
−
*QV at time t+3hr is saved into <tt>State_Met%SPHU2</tt>;
+
*QV at time t+3hr is converted to g/kg and saved into <tt>State_Met%SPHU2</tt>;
−
*QV is then linearly interpolated to the current time.
+
*QV is then interpolated to the current time.
 
|
 
|
 
*Chemistry
 
*Chemistry
Line 1,015: Line 1,143:
 
|Temperature
 
|Temperature
 
|In GEOS-Chem:
 
|In GEOS-Chem:
−
*T at time t is saved into <tt>State_Met%TMPU1</tt>;
+
*T @ time t is saved into <tt>State_Met%TMPU1</tt>;
−
*T at time t+3hr is saved into <tt>State_Met%TMPU2</tt>;
+
*T @ time t+3h is saved into <tt>State_Met%TMPU2</tt>;
−
*T is then linearly interpolated to the current time.
+
*T is then interpolated to the current time.
−
|Many locations
+
|
 +
*Many locations
  
 
|}
 
|}
  
−
--[[User:Bmy|Bob Y.]] 16:10, 15 August 2013 (EDT)
+
--[[User:Bmy|Bob Y.]] ([[User talk:Bmy|talk]]) 19:17, 3 August 2015 (UTC)

Latest revision as of 18:59, 13 February 2024

The GMAO "forward processing" (aka GMAO FP or GEOS5-FP) met field product is the latest update of the GMAO GEOS-5 met data product. GEOS FP has finer native horizontal resolution (0.25° lat x 0.3125° lon) and temporal resolution (hourly data and 3-hourly data) than older GMAO met products such as GEOS-5, the MERRA reanalysis, and GEOS-4. See GMAO's GEOS Near-Real Time Data Products page for more details.

NOTE: GEOS-Chem only uses a subset of the entire GMAO FP data archive. On this page we list the GMAO FP met fields that archive for use with GEOS-Chem.

GEOS-FP is the name of our GEOS-Chem met field archive of the GMAO FP product. In the discussion below, we will use the terminology "GEOS-FP" in place of "GMAO FP" or "GEOS-5 FP".

For more information, please see:

  1. GEOS5-FP file specification document, Version 1.0 (11 Jun 2013)
  2. GEOS-FP page on the GEOS-Chem wiki
  3. Overview of GMAO met data products
  4. Glossary of variables produced by the GEOS-DAS
  5. Evolution of the GEOS-5 system from GEOS-5.2.0/MERRA to GEOS-5.7.2 (aka "Fortuna")


Constant fields

Overview:

Quantities archived in this file type:
  • Time-invariant fields
    • These are mostly parameters pertaining to the horizontal grid
File naming convention:
  • GEOSFP.20110101.CN.025x03125.CH.nc  (Native resolution nested CH grid)
  • GEOSFP.20110101.CN.025x03125.EU.nc  (Native resolution nested EU grid)
  • GEOSFP.20110101.CN.025x03125.NA.nc  (Native resolution nested NA grid)
  • GEOSFP.20110101.CN.2x25.nc  (2° x 2.5° global grid)
  • GEOSFP.20110101.CN.4x5.nc  (4° x 5° global grid)
Timestamps:
  • For convenience, we have assigned these data timestamp of 2011/01/01 00:00 UTC


List of GEOS-FP data fields in this file type:

Field Units Collection Description Notes Where used in GEOS-Chem?
FRLAKE 1 const_2d_asm_Nx Fraction of lake type in grid box
  • CH4 simulation,
  • diagnostics
FRLAND 1 const_2d_asm_Nx Fraction of land type in grid box
  • Chemistry
  • Hg simulation
  • CH4 simulation
  • PBL mixing
FRLANDIC(E) 1 const_2d_asm_Nx Fraction of land ice type in grid box
  • The original name in the GEOS-FP raw data files is FRLANDICE.
  • We shorten this to FRLANDIC for GEOS-Chem. GEOS-Chem requires 8-character met field names.
  • Hg simulation
  • CH4 simulation
  • PBL mixing
FROCEAN 1 const_2d_asm_Nx Fraction of ocean in grid box
  • Chemistry
  • Hg simulation
  • CH4 simulation
  • Emissions
PHIS m2 s-2 const_2d_asm_Nx Surface geopotential
  • Kept for diagnostics

--Bob Y. 14:01, 21 October 2013 (EDT)

A1 fields

Overview:

Quantities archived in this file type:
  • Various surface fields
File naming convention:
  • GEOSFP.YYYYMMDD.A1.025x03125.CH.nc  (Native resolution nested CH grid)
  • GEOSFP.YYYYMMDD.A1.025x03125.EU.nc  (Native resolution nested EU grid)
  • GEOSFP.YYYYMMDD.A1.025x03125.NA.nc  (Native resolution nested NA grid)
  • GEOSFP.YYYYMMDD.A1.2x25.nc  (2° x 2.5° global grid)
  • GEOSFP.YYYYMMDD.A1.4x5.nc  (4° x 5° global grid)
Timestamps:
  • 00:30, 01:30, 02:30, 3:30, 4:30, 5:30 ... 23:30 GMT
    • These represent the center of the 1-hour averaging period


List of GEOS-FP data fields in this file type:

Field Units Collection Description Notes Where used in GEOS-Chem?
ALBEDO 1 tavg1_2d_rad_Nx Surface albedo
  • Dry deposition
  • Diagnostics
CLDTOT 1 tavg1_2d_rad_Nx Total cloud fraction
  • For all intents and purposes, CLDTOT = the column sum of CLOUD, but at 1-hour resolution.
  • Photolysis
  • Diagnostics
EFLUX W m-2 tavg1_2d_flx_Nx Total latent energy flux (i.e. latent heat)
  • Kept for diagnostics
EVAP kg m-2 s-2 tavg1_2d_flx_Nx Evaporation from turbulence
  • Kept for diagnostics
FRSEAICE 1 tavg1_2d_flx_Nx Ice-covered fraction of tile (i.e. sea ice fraction)
  • We bin FRSEAICE to create the SEAICE** fields listed below.
  • Hg simulation
FRSNO 1 tavg1_2d_lnd_Nx Fractional area of land snowcover
  • PBL mixing
  • Hg simulation
GRN 1 tavg1_2d_lnd_Nx Vegetation greenness fraction
  • Kept for diagnostics
GWETROOT 1 tavg1_2d_lnd_Nx Root zone soil wetness
  • Kept for diagnostics
GWETTOP 1 tavg1_2d_lnd_Nx Top soil wetness
  • CH4 simulation
  • Dust mobilization
HFLUX W m-2 tavg1_2d_flx_Nx Sensible heat flux from turbulence
  • Dry deposition
LAI m2 m-2 tavg1_2d_lnd_Nx Leaf area index
  • NOTE: GEOS-Chem uses MODIS LAI instead of the GEOS-FP LAI..
  • Kept for diagnostics
LWGNT W m-2 tavg1_2d_rad_Nx Upwelling longwave flux at top of atmosphere
  • Kept for diagnostics
LWI 1 - Land/water/ice flags
  • We derive LWI from the FRSEAICE, FROCEAN, and FRLAND fields.
  • GEOS-Chem needs LWI for backwards compatibility.
  • To determine the overall surface type in a grid box
LWTUP W m-2 tavg1_2d_rad_Nx Upwelling longwave flux at top of atmosphere
  • Kept for diagnostics
PARDF W m-2 tavg1_2d_lnd_Nx Surface downwelling PAR diffusive flux
  • Biogenic emissions
PARDR W m-2 tavg1_2d_lnd_Nx Surface downwelling PAR direct flux
  • Biogenic emissions
PBLH m tavg1_2d_flx_Nx Planetary boundary layer height
  • PBL mixing
PRECANV kg m-2 s-1 tavg1_2d_flx_Nx Anvil precipitation
  • A fix was made on 27 Sep 2019 to the processing code to correct units from [kg m-2 s-2] to [kg m-2 s-1].
  • Units are converted to mm/day in GEOS-Chem.
  • Kept for diagnostics
PRECCON kg m-2 s-1 tavg1_2d_flx_Nx Convective precipitation
  • A fix was made on 27 Sep 2019 to the processing code to correct units from [kg m-2 s-2] to [kg m-2 s-1].
  • Units are converted to mm/day in GEOS-Chem.
  • Soil NOx emissions
  • Wet deposition
PRECLSC kg m-2 s-1 tavg1_2d_flx_Nx Non-anvil large-scale precipitation
  • A fix was made on 27 Sep 2019 to the processing code to correct units from [kg m-2 s-2] to [kg m-2 s-1].
  • Units are converted to mm/day in GEOS-Chem.
  • Kept for diagnostics
PRECSNO kg m-2 s-1 tavg1_2d_flx_Nx Snowfall
  • A fix was made on 27 Sep 2019 to the processing code to correct units from [kg m-2 s-2] to [kg m-2 s-1].
  • Units are converted to mm/day in GEOS-Chem.
  • Kept for diagnostics
PRECTOT kg m-2 s-1 tavg1_2d_flx_Nx Total precipitation
  • A fix was made on 27 Sep 2019 to the processing code to correct units from [kg m-2 s-2] to [kg m-2 s-1].
  • Units are converted to mm/day in GEOS-Chem.
  • Soil NOx emissions
  • Wet deposition
QV2M kg kg-1 tavg1_2d_slv_Nx Specific humidity at 2 m above the displacement height
  • Kept for diagnostics
Q850 kg kg-1 tavg1_2d_slv_Nx Specific humidity at 850 hPa
  • Dust mobilization
SEAICE00 1 - Fraction of grid box that has < 10% sea ice coverage
  • Arctic simulations
  • Diagnostics
SEAICE10 1 - Fraction of grid box that has 10-20% sea ice coverage
SEAICE20 1 - Fraction of grid box that has 20-30% sea ice coverage
SEAICE30 1 - Fraction of grid box that has 30-40% sea ice coverage
SEAICE40 1 - Fraction of grid box that has 40-50% sea ice coverage
SEAICE50 1 - Fraction of grid box that has 50-60% sea ice coverage
SEAICE60 1 - Fraction of grid box that has 60-70% sea ice coverage
SEAICE70 1 - Fraction of grid box that has 70-80% sea ice coverage
SEAICE80 1 - Fraction of grid box that has 80-90% sea ice coverage
SEAICE90 1 - Fraction of grid box that has > 90% sea ice coverage
SLP hPa tavg1_2d_slv_Nx Sea level pressure
  • Original units of SLP are Pa.
  • We convert Pa -> hPa because GEOS-Chem expects hPa.
  • Kept for diagnostics
SNODP m tavg1_2d_lnd_Nx Snow depth
  • Kept for diagnostics
SNOMAS kg m-2 tavg1_2d_lnd_Nx Total snow storage on land
  • Dust mobilization
  • Hg simulations
  • Dry deposition
SWGDN W m-2 tavg1_2d_rad_Nx Surface incident shortwave flux
  • GEOS-Chem carries this as State_Met%RADSWG
  • Soil NOx emissions
  • Hg simulations
  • Dry deposition
TO3 Dobsons tavg1_2d_slv_Nx Total column ozone
  • Used as input to photolysis
TROPPT hPa tavg1_2d_slv_Nx T based tropopause pressure
  • Original units of TROPPT are Pa.
  • We convert Pa -> hPa because GEOS-Chem expects hPa.
  • Used to determine tropopause height
TS K tavg1_2d_slv_Nx Surface skin temperature
  • GEOS-Chem carries this as State_Met%TSKIN
  • CH4 simulation
  • Hg simulation
  • Sea salt emissions
T2M K tavg1_2d_slv_Nx 2-meter air temperature
  • GEOS-Chem carries this as State_Met%TS
  • GEOS-Chem uses T2M as a proxy for surface air temp.
  • Many locations
T10M K tavg1_2d_slv_Nx 10-meter air temperature
  • Dust mobilization
U10M m s-1 tavg1_2d_slv_Nx 10-meter eastward wind
  • Dry deposition
  • Dust mobilization
  • Emissions
  • Sea salt aerosols
  • Hg simulations
USTAR m s-1 tavg1_2d_flx_Nx Surface velocity scake (aka friction velocity)
  • Dry deposition
V10M m s-1 tavg1_2d_slv_Nx 10-meter northward wind
  • Dry deposition
  • Dust mobilization
  • Emissions
  • Sea salt aerosols
  • Hg simulations
Z0M m tavg1_2d_flx_Nx Roughness length, momentum
  • Dry deposition

--Bob Y. 14:02, 21 October 2013 (EDT)

A3cld fields

Overview:

Quantities archived in this file type:
  • Cloud parameters
    • Data are 3-dimensional, stored at the midpoint of each vertical level
File naming convention:
  • GEOSFP.YYYYMMDD.A3cld.025x03125.CH.nc  (Native resolution, nested CH grid)
  • GEOSFP.YYYYMMDD.A3cld.025x03125.EU.nc  (Native resolution, nested EU grid)
  • GEOSFP.YYYYMMDD.A3cld.025x03125.NA.nc  (Native resolution, nested NA grid)
  • GEOSFP.YYYYMMDD.A3cld.2x25.nc  (2° x 2.5° global grid)
  • GEOSFP.YYYYMMDD.A3cld.4x5.nc  (4° x 5° global grid)
Timestamps:
  • 01:30, 04:30, 07:30, 10:30, 13:30, 16:30, 19:30, 22:30 GMT
    • Timestamps represent the center of the 3-hour averaging period.


List of GEOS-FP data fields in this file type:

Field Units Collection Description Notes Where used in GEOS-Chem?
CLOUD 1 tavg3_3d_rad_Nv Total cloud fraction in grid box
  • Photolysis
  • Chemistry
OPTDEPTH 1 none Total in-cloud optical depth (visible band)
  • Photolysis
  • Chemistry
QCCU 1 tavg3_3d_cld_Nv Cloud condensate mixing ratio, convective updraft
  • Kept for diagnostics
QI kg kg-1 none Cloud ice water mixing ratio
  • We create QI = QIAN + QILS, then regrid.
  • Chemistry
  • Aerosol microphysics
QL kg kg-1 tavg3_3d_cld_Nv Cloud liquid water mixing ratio - anvils
  • We create QL = QLAN + QLLS, then regrid.
  • Chemistry
  • Aerosol microphysics
TAUCLI 1 tavg3_3d_cld_Nv In-cloud ice cloud optical thickness (visible band)
  • Kept for diagnostics
TAUCLW 1 tavg3_3d_cld_Nv In-cloud liquid cloud optical thickness (visible band)
  • Kept for diagnostics
      These fields are only used to create other A3cld fields.    
QIAN kg kg-1 tavg3_3d_cld_Nv Cloud ice water mixing ratio - anvils
  • We only use QIAN to construct QI.
  • We do not save QIAN to the A3cld files.
QILS kg kg-1 tavg3_3d_cld_Nv Cloud ice water mixing ratio - large-scale
  • We only use QILS to construct QI.
  • We do not save QILS to the A3cld files.
QLAN kg kg-1 tavg3_3d_cld_Nv Cloud liquid water mixing ratio - anvils
  • We only use QLAN to construct QL.
  • We do not save QLAN to the A3cld files.
QLLS kg kg-1 tavg3_3d_cld_Nv Cloud liquid water mixing ratio - large-scale
  • We only use QLLS to construct QL.
  • We do not save QLLS to the A3cld files.

--Bob Y. 14:06, 21 October 2013 (EDT)

A3dyn fields

Overview:

Quantities archived in this file type:
  • Dynamical fields (e.g. winds, relative humidity, detrainment fluxes)
    • Data are 3-dimensional, stored at the midpoint of each vertical level
File naming convention:
  • GEOSFP.YYYYMMDD.A3dyn.025x03125.CH.nc (Native resolution, nested CH grid)
  • GEOSFP.YYYYMMDD.A3dyn.025x03125.EU.nc (Native resolution, nested EU grid)
  • GEOSFP.YYYYMMDD.A3dyn.025x03125.NA.nc (Native resolution, nested NA grid)
  • GEOSFP.YYYYMMDD.A3dyn.2x25.nc (2° x 2.5° global grid)
  • GEOSFP.YYYYMMDD.A3dyn.4x5.nc (4° x 5° global grid)
Timestamps:
  • 01:30, 04:30, 07:30, 10:30, 13:30, 16:30, 19:30, 22:30 GMT
    • Timestamps represent the center of the 3-hour averaging period.


List of GEOS-FP data fields in this file type:

Field Units Collection Description Notes Where used in GEOS-Chem?
DTRAIN kg m-2 s-2 tavg3_3d_cld_Nv Detrainment cloud mass flux
  • Cloud convection
OMEGA Pa s-1 tavg3_3d_asm_Nv Vertical pressure velocity
  • Kept for diagnostics
RH 1 tavg3_3d_cld_Nv Relative humidity GMAO computes RH as follows:
  • T > 273.16 K: w/r/t liquid
  • T < 253.16 K: w/r/t ice
  • 253.16 K <= T <= 273.16K: weighted avg w/r/t both liquid and ice
  • Chemistry
  • Wet deposition
  • Aerosol therm. equilib.
  • Aerosol microphysics
U m s-1 tavg3_3d_asm_Nv Eastward component of wind
  • Advection
V m s-1 tavg3_3d_asm_Nv Northward component of wind
  • Advection

--Bob Y. 14:16, 21 October 2013 (EDT)

A3mstC fields

Overview:

Quantities archived in this file type:
  • Precipitation and sublimation fields
    • Data are 3-dimensional, stored at the midpoint of each vertical level
File naming convention:
  • GEOSFP.YYYYMMDD.A3mstC.025x03125.CH.nc (Native resolution, nested CH grid)
  • GEOSFP.YYYYMMDD.A3mstC.025x03125.EU.nc (Native resolution, nested EU grid)
  • GEOSFP.YYYYMMDD.A3mstC.025x03125.NA.nc (Native resolution, nested NA grid)
  • GEOSFP.YYYYMMDD.A3mstC.2x25.nc (2° x 2.5° global grid)
  • GEOSFP.YYYYMMDD.A3mstC.4x5.nc (4° x 5° global grid)
Timestamps:
  • 01:30, 04:30, 07:30, 10:30, 13:30, 16:30, 19:30, 22:30 GMT
    • Timestamps represent the center of the 3-hour averaging period.


List of GEOS-FP data fields in this file type:

Field Units Collection Description Notes Where used in GEOS-Chem?
DQRCU kg kg-1 s-1 tavg3_3d_mst_Nv Convective rainwater source
  • Conv. updraft scavenging
DQRLSAN kg kg-1 s-1 tavg3_3d_mst_Nv Large-scale rainwater source
  • Wet deposition
REEVAPCN kg kg-1 s-1 tavg3_3d_mst_Nv Evaporative submlimation of convective precipitation
  • Conv. updraft scavenging
REEVAPLS(AN) kg kg-1 s-1 tavg3_3d_mst_Nv Evaporation of precipitating LS & anvil condensate
  • In the GEOS-FP raw data files, this field is named REEVAPLSAN.
  • In the files created for GEOS-Chem, we change the field name to REEVAPLS.
  • GEOS-Chem requires 8-character met field names for backwards compatibility.
  • Wet deposition

--Bob Y. (talk) 19:14, 3 August 2015 (UTC)

A3mstE fields

Overview:

Quantities archived in this file type:
  • Precipitation and convection fields
    • Data are 3-dimensional, stored at the edges of each vertical level
File naming convention:
  • GEOSFP.YYYYMMDD.A3mstE.025x03125.CH.nc  (Native resolution, nested CH grid)
  • GEOSFP.YYYYMMDD.A3mstE.025x03125.EU.nc  (Native resolution, nested EU grid)
  • GEOSFP.YYYYMMDD.A3mstE.025x03125.NA.nc  (Native resolution, nested NA grid)
  • GEOSFP.YYYYMMDD.A3mstE.2x25.nc  (2° x 2.5° global grid)
  • GEOSFP.YYYYMMDD.A3mstE.4x5.nc  (4° x 5° global grid)
Timestamps:
  • 01:30, 04:30, 07:30, 10:30, 13:30, 16:30, 19:30, 22:30 GMT
    • Timestamps represent the center of the 3-hour averaging period.


List of GEOS-FP data fields in this file type:

Field Units Collection Description Notes Where used in GEOS-Chem?
CMFMC kg m-2 s-2 tavg3_3d_mst_Ne Upward moist convective mass flux
  • Cloud convection
PFICU kg m-2 s-1 tavg3_3d_mst_Ne 3d flux of ice convective precipitation
  • Conv. updraft scavenging
PFILSAN kg m-2 s-1 tavg3_3d_mst_Ne 3d flux of ice non-convective precipitation
  • Wet deposition
PFLCU kg m-2 s-1 tavg3_3d_mst_Ne 3d flux of liquid convective precipitation
  • Conv. updraft scavenging
PFLLSAN kg m-2 s-1 tavg3_3d_mst_Ne 3d flux of liquid non-convective precipitation
  • Wet deposition

--Bob Y. 14:18, 21 October 2013 (EDT)

I3 fields

Overview:

Quantities archived in this file type:
  • Pressure, temperature, humidity
    • Data are 3-dimensional, stored at the midpoint of each vertical level
File naming convention:
  • GEOSFP.YYYYMMDD.I3.05x0625.CH.nc  (Native resolution, nested China grid)
  • GEOSFP.YYYYMMDD.I3.05x0625.EU.nc  (Native resolution, nested Europe grid)
  • GEOSFP.YYYYMMDD.I3.05x0625.NA.nc  (Native resolution, nested North America grid)
  • GEOSFP.YYYYMMDD.I3.05x0625.SE.nc  (Native resolution, nested SE Asia grid)
  • GEOSFP.YYYYMMDD.I3.2x25.nc  (2° x 2.5° global grid)
  • GEOSFP.YYYYMMDD.I3.4x5.nc  (4° x 5° global grid)
Timestamps:
  • 00:00, 03:00, 06:00, 09:00, 12:00, 15:00, 18:00, 21:00 GMT
    • Timestamps represent instantaneous ("snapshot") values every 3 hours.


List of GEOS-FP data fields in this file type:

Field Units Collection Description Notes Where used in GEOS-Chem?
PS hPa inst3_3d_asm_Nv Surface pressure
  • Original units of PS are Pa.
  • We convert Pa -> hPa, because GEOS-Chem expects hPa.
  • Advection
  • Many other locations
PV K m2 kg-1 s-1 inst3_3d_asm_Nv Ertel potential vorticity
  • This field is labeled EPV in the GEOS-FP raw data files.
  • GEOS-Chem renames this to "PV" for backwards compatibility with older met products.
  • Kept for diagnostics
QV kg kg-1 inst3_3d_asm_Nv Specific humidity In GEOS-Chem:
  • QV at time t is converted to g/kg and saved into State_Met%SPHU1;
  • QV at time t+3hr is converted to g/kg and saved into State_Met%SPHU2;
  • QV is then interpolated to the current time.
  • Chemistry
  • Wet deposition
  • PBL mixing
T K inst3_3d_asm_Nv Temperature In GEOS-Chem:
  • T @ time t is saved into State_Met%TMPU1;
  • T @ time t+3h is saved into State_Met%TMPU2;
  • T is then interpolated to the current time.
  • Many locations

--Bob Y. (talk) 19:17, 3 August 2015 (UTC)

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