Difference between revisions of "List of MERRA-2 met fields"

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--[[User:Bmy|Bob Y.]] ([[User talk:Bmy|talk]]) 15:48, 3 August 2015 (UTC)
 
--[[User:Bmy|Bob Y.]] ([[User talk:Bmy|talk]]) 15:48, 3 August 2015 (UTC)
 +
 +
== A1 fields ==
 +
 +
#These are 1-hr time-averaged fields, which will have the following filenames:
 +
#*<tt>MERRA2.YYYYMMDD.A1.05x0625.CH.nc</tt>&nbsp; (Native resolution nested CH grid)
 +
#*<tt>MERRA2.YYYYMMDD.A1.05x0625.EU.nc</tt>&nbsp; (Native resolution nested EU grid)
 +
#*<tt>MERRA2.YYYYMMDD.A1.05x0625.NA.nc</tt>&nbsp; (Native resolution nested NA grid)
 +
#*<tt>MERRA2.YYYYMMDD.A1.025x03125.SE.nc</tt>&nbsp; (Native resolution nested SE grid)
 +
#*<tt>MERRA2.YYYYMMDD.A1.2x25.nc</tt>&nbsp; (2&deg; x 2.5&deg; global grid)
 +
#*<tt>MERRA2.YYYYMMDD.A1.4x5.nc</tt>&nbsp; (4&deg; x 5&deg; global grid)
 +
#All A1 fields are 2-dimensional (lon,lat)
 +
#'''[[MERRA2#MERRA2 time archiving|Timestamps]]''' (i.e. center of averaging period): 00:30, 01:30, 02:30 ... 23:30 GMT
 +
# The '''[[MERRA2#Merra2 data file collections|Collection]]''' indicates the GEOS-FP raw data files in which each field may be found.
 +
#*One MERRA2 raw data file is created for each new day of data
 +
#*Therefore, the A1 data fields listed below will be contained in a single MERRA2 raw data file.
 +
 +
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|- bgcolor="#CCCCCC"
 +
!width="100px"|Field
 +
!width="80px"|Units
 +
!width="110px"|Collection
 +
!width="300px"|Description
 +
!width="300px"|Notes
 +
!width="200px"|Where used in GEOS-Chem?
 +
 +
|-valign="top"
 +
|ALBEDO
 +
|1
 +
|tavg1_2d_rad_Nx
 +
|Surface albedo
 +
|
 +
|
 +
*Dry deposition
 +
*Diagnostics
 +
 +
|-valign="top"
 +
|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
 +
 +
|-valign="top"
 +
|EFLUX
 +
|W m<sup>-2</sup>
 +
|tavg1_2d_flx_Nx
 +
|Total latent energy flux (i.e. latent heat)
 +
|
 +
|
 +
*Kept for diagnostics
 +
 +
|-valign="top"
 +
|EVAP
 +
|kg m<sup>-2</sup> s<sup>-2</sup>
 +
|tavg1_2d_flx_Nx
 +
|Evaporation from turbulence
 +
|
 +
|
 +
*Kept for diagnostics
 +
 +
|-valign="top"
 +
|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
 +
 +
|-valign="top"
 +
|FRSNO
 +
|1
 +
|tavg1_2d_lnd_Nx
 +
|Fractional area of land snowcover
 +
|
 +
|
 +
*PBL mixing
 +
*Hg simulation
 +
 +
|-valign="top"
 +
|GRN
 +
|1
 +
|tavg1_2d_lnd_Nx
 +
|Vegetation greenness fraction
 +
|
 +
|
 +
*Kept for diagnostics
 +
 +
|-valign="top"
 +
|GWETROOT
 +
|1
 +
|tavg1_2d_lnd_Nx
 +
|Root zone soil wetness
 +
|
 +
|
 +
*Kept for diagnostics
 +
 +
|-valign="top"
 +
|GWETTOP
 +
|1
 +
|tavg1_2d_lnd_Nx
 +
|Top soil wetness
 +
|
 +
|
 +
*CH4 simulation
 +
*Dust mobilization
 +
 +
|-valign="top"
 +
|HFLUX
 +
|W m<sup>-2</sup>
 +
|tavg1_2d_flx_Nx
 +
|Sensible heat flux from turbulence
 +
|
 +
|
 +
*Dry deposition
 +
 +
|-valign="top"
 +
|LAI
 +
|m<sup>2</sup> m<sup>-2</sup>
 +
|tavg1_2d_lnd_Nx
 +
|Leaf area index
 +
|
 +
*NOTE: GEOS-Chem uses MODIS LAI instead of the GEOS-FP LAI..
 +
|
 +
*Kept for diagnostics
 +
 +
|-valign="top"
 +
|LWGNT
 +
|W m<sup>-2</sup>
 +
|tavg1_2d_rad_Nx
 +
|Upwelling longwave flux at top of atmosphere
 +
|
 +
|
 +
*Kept for diagnostics
 +
 +
|-valign="top"
 +
|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
 +
 +
|-valign="top"
 +
|LWTUP
 +
|W m<sup>-2</sup>
 +
|tavg1_2d_rad_Nx
 +
|Upwelling longwave flux at top of atmosphere
 +
|
 +
|
 +
*Kept for diagnostics
 +
 +
|-valign="top"
 +
|PARDF
 +
|W m<sup>-2</sup>
 +
|tavg1_2d_lnd_Nx
 +
|Surface downwelling PAR diffusive flux
 +
|
 +
|
 +
*Biogenic emissions
 +
 +
|-valign="top"
 +
|PARDR
 +
|W m<sup>-2</sup>
 +
|tavg1_2d_lnd_Nx
 +
|Surface downwelling PAR direct flux
 +
|
 +
|
 +
*Biogenic emissions
 +
 +
|-valign="top"
 +
|PBLH
 +
|m
 +
|tavg1_2d_flx_Nx
 +
|Planetary boundary layer height
 +
|
 +
|
 +
*PBL mixing
 +
 +
|-valign="top"
 +
|PRECANV     
 +
|kg m<sup>-2</sup> s<sup>-2</sup>
 +
|tavg1_2d_flx_Nx
 +
|Anvil precipitation
 +
|
 +
|
 +
*Kept for diagnostics
 +
 +
|-valign="top"
 +
|PRECCON
 +
|kg m<sup>-2</sup> s<sup>-2</sup>
 +
|tavg1_2d_flx_Nx
 +
|Convective precipitation
 +
|
 +
|
 +
*Soil NOx emissions
 +
*Wet deposition
 +
 +
|-valign="top"
 +
|PRECLSC
 +
|kg m<sup>-2</sup> s<sup>-2</sup>
 +
|tavg1_2d_flx_Nx
 +
|Non-anvil large-scale precipitation
 +
|
 +
|
 +
*Kept for diagnostics
 +
 +
|-valign="top"
 +
|PRECSNO
 +
|kg m<sup>-2</sup> s<sup>-2</sup>
 +
|tavg1_2d_flx_Nx
 +
|Snowfall
 +
|
 +
|
 +
*Kept for diagnostics
 +
 +
|-valign="top"
 +
|PRECTOT
 +
|kg m<sup>-2</sup> s<sup>-2</sup>
 +
|tavg1_2d_flx_Nx
 +
|Total precipitation
 +
|
 +
|
 +
*Soil NOx emissions
 +
*Wet deposition
 +
 +
|-valign="top"
 +
|QV2M
 +
|kg kg<sup>-1</sup>
 +
|tavg1_2d_slv_Nx
 +
|Specific humidity at 2 m above the displacement height
 +
|
 +
|
 +
*Kept for diagnostics
 +
 +
|-valign="top"
 +
|Q850
 +
|kg kg<sup>-1</sup>
 +
|tavg1_2d_slv_Nx
 +
|Specific humidity at 850 hPa
 +
|
 +
|
 +
*Dust mobilization
 +
 +
|-valign="top"
 +
|SEAICE00
 +
|1
 +
| -
 +
|Fraction of grid box that has < 10% sea ice coverage
 +
|
 +
*[[#Fractional sea ice|We create this by binning FRSEAICE.]]
 +
|
 +
*Arctic simulations
 +
*Diagnostics
 +
 +
|-valign="top"
 +
|SEAICE10
 +
|1
 +
| -
 +
|Fraction of grid box that has 10-20% sea ice coverage
 +
|
 +
*[[#Fractional sea ice|We create this by binning FRSEAICE.]]
 +
|
 +
*Arctic simulations
 +
*Planeflight diagnostics
 +
 +
|-valign="top"
 +
|SEAICE20
 +
|1
 +
| -
 +
|Fraction of grid box that has 20-30% sea ice coverage
 +
|
 +
*[[#Fractional sea ice|We create this by binning FRSEAICE.]]
 +
|
 +
*Arctic simulations
 +
*Planeflight diagnostics
 +
 +
|-valign="top"
 +
|SEAICE30
 +
|1
 +
| -
 +
|Fraction of grid box that has 30-40% sea ice coverage
 +
|
 +
*[[#Fractional sea ice|We create this by binning FRSEAICE.]]
 +
|
 +
*Arctic simulations
 +
*Planeflight diagnostics
 +
 +
|-valign="top"
 +
|SEAICE40
 +
|1
 +
| -
 +
|Fraction of grid box that has 40-50% sea ice coverage
 +
|
 +
*[[#Fractional sea ice|We create this by binning FRSEAICE.]]
 +
|
 +
*Arctic simulations
 +
*Planeflight diagnostics
 +
 +
|-valign="top"
 +
|SEAICE50
 +
|1
 +
| -
 +
|Fraction of grid box that has 50-60% sea ice coverage
 +
|
 +
*[[#Fractional sea ice|We create this by binning FRSEAICE.]]
 +
|
 +
*Arctic simulations
 +
*Planeflight diagnostics
 +
 +
|-valign="top"
 +
|SEAICE60
 +
|1
 +
| -
 +
|Fraction of grid box that has 60-70% sea ice coverage
 +
|
 +
*[[#Fractional sea ice|We create this by binning FRSEAICE.]]
 +
|
 +
*Arctic simulations
 +
*Planeflight diagnostics
 +
 +
|-valign="top"
 +
|SEAICE70
 +
|1
 +
| -
 +
|Fraction of grid box that has 70-80% sea ice coverage
 +
|
 +
*[[#Fractional sea ice|We create this by binning FRSEAICE.]]
 +
|
 +
*Arctic simulations
 +
*Planeflight diagnostics
 +
 +
|-valign="top"
 +
|SEAICE80
 +
|1
 +
| -
 +
|Fraction of grid box that has 80-90% sea ice coverage
 +
|
 +
*[[#Fractional sea ice|We create this by binning FRSEAICE.]]
 +
|
 +
*Arctic simulations
 +
*Planeflight diagnostics
 +
 +
|-valign="top"
 +
|SEAICE90
 +
|1
 +
| -
 +
|Fraction of grid box that has > 90% sea ice coverage
 +
|
 +
*[[#Fractional sea ice|We create this by binning FRSEAICE.]]
 +
|
 +
*Arctic simulations
 +
*Planeflight diagnostics
 +
 +
|-valign="top"
 +
|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
 +
 +
|-valign="top"
 +
|SNODP
 +
|m
 +
|tavg1_2d_lnd_Nx
 +
|Snow depth
 +
|
 +
|
 +
*Kept for diagnostics
 +
 +
|-valign="top"
 +
|SNOMAS
 +
|kg m<sup>-2</sup>
 +
|tavg1_2d_lnd_Nx
 +
|Total snow storage on land
 +
|
 +
|
 +
*Dust mobilization
 +
*Hg simulations
 +
*Dry deposition
 +
 +
|-valign="top"
 +
|SWGDN
 +
|W m<sup>-2</sup>
 +
|tavg1_2d_rad_Nx
 +
|Surface incident shortwave flux
 +
|
 +
*GEOS-Chem carries this as <tt>State_Met%RADSWG</tt>
 +
|
 +
*Soil NOx emissions
 +
*Hg simulations
 +
*Dry deposition
 +
 +
|-valign="top"
 +
|SWGNT
 +
|W m<sup>-2</sup>
 +
|tavg1_2d_rad_Nx
 +
|Surface net downward shortwave flux
 +
|
 +
|
 +
*Kept for diagnostics
 +
 +
|-valign="top"
 +
|TO3
 +
|Dobsons
 +
|tavg1_2d_slv_Nx
 +
|Total column ozone
 +
|
 +
|
 +
*Used as input to photolysis
 +
 +
|-valign="top"
 +
|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
 +
 +
|-valign="top"
 +
|TS
 +
|K
 +
|tavg1_2d_slv_Nx
 +
|Surface skin temperature
 +
|
 +
*GEOS-Chem carries this as <tt>State_Met%TSKIN</tt>
 +
|
 +
*CH4 simulation
 +
*Hg simulation
 +
*Sea salt emissions
 +
 +
|-valign="top"
 +
|T2M
 +
|K
 +
|tavg1_2d_slv_Nx
 +
|2-meter air temperature
 +
|
 +
*GEOS-Chem carries this as <tt>State_Met%TS</tt>
 +
*GEOS-Chem uses T2M as a proxy for surface air temp.
 +
|
 +
*Many locations
 +
 +
|-valign="top"
 +
|T10M
 +
|K
 +
|tavg1_2d_slv_Nx
 +
|10-meter air temperature
 +
|
 +
|
 +
*Dust mobilization
 +
 +
|-valign="top"
 +
|U10M
 +
|m s<sup>-1</sup>
 +
|tavg1_2d_slv_Nx
 +
|10-meter eastward wind
 +
|
 +
|
 +
*Dry deposition
 +
*Dust mobilization
 +
*Emissions
 +
*Sea salt aerosols
 +
*Hg simulations
 +
 +
|-valign="top"
 +
|USTAR
 +
|m s<sup>-1</sup>
 +
|tavg1_2d_flx_Nx
 +
|Surface velocity scake (aka friction velocity)
 +
|
 +
|
 +
*Dry deposition
 +
 +
|-valign="top"
 +
|V10M
 +
|m s<sup>-1</sup>
 +
|tavg1_2d_slv_Nx
 +
|10-meter northward wind
 +
|
 +
|
 +
*Dry deposition
 +
*Dust mobilization
 +
*Emissions
 +
*Sea salt aerosols
 +
*Hg simulations
 +
 +
|-valign="top"
 +
|Z0M
 +
|m
 +
|tavg1_2d_flx_Nx
 +
|Roughness length, momentum
 +
|
 +
|
 +
*Dry deposition
 +
 +
|}
 +
 +
--[[User:Bmy|Bob Y.]] ([[User talk:Bmy|talk]]) 15:51, 3 August 2015 (UTC)

Revision as of 15:51, 3 August 2015

Page is under construction.jpg

MERRA2 is a new NASA/GMAO reanalysis product. It has a horizontal resolution of 0.5° lat x 0.625° lon x 72 vertical levels. The horizontal resolution is 2x coarser than the GMAO "forward processing" product (which we refer to as GEOS-FP). But MERRA2 uses the identical vertical grid as the GEOS-5#GEOS-5, MERRA, and the "GEOS-FP" data products used by GEOS-Chem.

NOTE: GEOS-Chem only uses a subset of the entire MERRA2 data archive. On this page we list the MERRA2 met fields that we archive for use with GEOS-Chem.

As of August 2015, we have not finalized this list of MERRA2 met fields that we will archive for GEOS-Chem. If your research requires additional fields not listed below, please contact the GEOS-Chem Support Team.

Constant fields

  1. These data will be timestamped 2015/01/01 at 00:00 GMT for convenience.
  2. These are time-invariant constant fields, which will have the following filenames:
    • MERRA2.20110101.CN.05x0625.CH.nc  (Native resolution nested CH grid)
    • MERRA2.20110101.CN.05x0625.EU.nc  (Native resolution nested EU grid)
    • MERRA2.20110101.CN.05x0625.NA.nc  (Native resolution nested NA grid)
    • MERRA2.20110101.CN.05x0625.NA.nc  (Native resolution nested SE grid)
    • MERRA2.20110101.CN.2x25.nc  (2° x 2.5° global grid)
    • MERRA2.20110101.CN.4x5.nc  (4° x 5° global grid)
  3. The Collection indicates the MERRA2 raw data files in which each field may be found.
  4. One MERRA2 raw data file is created for each day of data.
    • Therefore, the CN data fields listed below will be contained in a single MERRA2 raw data file.


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. (talk) 15:48, 3 August 2015 (UTC)

A1 fields

  1. These are 1-hr time-averaged fields, which will have the following filenames:
    • MERRA2.YYYYMMDD.A1.05x0625.CH.nc  (Native resolution nested CH grid)
    • MERRA2.YYYYMMDD.A1.05x0625.EU.nc  (Native resolution nested EU grid)
    • MERRA2.YYYYMMDD.A1.05x0625.NA.nc  (Native resolution nested NA grid)
    • MERRA2.YYYYMMDD.A1.025x03125.SE.nc  (Native resolution nested SE grid)
    • MERRA2.YYYYMMDD.A1.2x25.nc  (2° x 2.5° global grid)
    • MERRA2.YYYYMMDD.A1.4x5.nc  (4° x 5° global grid)
  2. All A1 fields are 2-dimensional (lon,lat)
  3. Timestamps (i.e. center of averaging period): 00:30, 01:30, 02:30 ... 23:30 GMT
  4. The Collection indicates the GEOS-FP raw data files in which each field may be found.
    • One MERRA2 raw data file is created for each new day of data
    • Therefore, the A1 data fields listed below will be contained in a single MERRA2 raw data file.


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-2 tavg1_2d_flx_Nx Anvil precipitation
  • Kept for diagnostics
PRECCON kg m-2 s-2 tavg1_2d_flx_Nx Convective precipitation
  • Soil NOx emissions
  • Wet deposition
PRECLSC kg m-2 s-2 tavg1_2d_flx_Nx Non-anvil large-scale precipitation
  • Kept for diagnostics
PRECSNO kg m-2 s-2 tavg1_2d_flx_Nx Snowfall
  • Kept for diagnostics
PRECTOT kg m-2 s-2 tavg1_2d_flx_Nx Total precipitation
  • 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
  • Arctic simulations
  • Planeflight diagnostics
SEAICE20 1 - Fraction of grid box that has 20-30% sea ice coverage
  • Arctic simulations
  • Planeflight diagnostics
SEAICE30 1 - Fraction of grid box that has 30-40% sea ice coverage
  • Arctic simulations
  • Planeflight diagnostics
SEAICE40 1 - Fraction of grid box that has 40-50% sea ice coverage
  • Arctic simulations
  • Planeflight diagnostics
SEAICE50 1 - Fraction of grid box that has 50-60% sea ice coverage
  • Arctic simulations
  • Planeflight diagnostics
SEAICE60 1 - Fraction of grid box that has 60-70% sea ice coverage
  • Arctic simulations
  • Planeflight diagnostics
SEAICE70 1 - Fraction of grid box that has 70-80% sea ice coverage
  • Arctic simulations
  • Planeflight diagnostics
SEAICE80 1 - Fraction of grid box that has 80-90% sea ice coverage
  • Arctic simulations
  • Planeflight diagnostics
SEAICE90 1 - Fraction of grid box that has > 90% sea ice coverage
  • Arctic simulations
  • Planeflight diagnostics
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
SWGNT W m-2 tavg1_2d_rad_Nx Surface net downward shortwave flux
  • Kept for diagnostics
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. (talk) 15:51, 3 August 2015 (UTC)

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