Difference between revisions of "List of MERRA-2 met fields"
(→Constant fields) |
(→A1 fields) |
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!width="80px"|Units | !width="80px"|Units | ||
!width="110px"|Collection | !width="110px"|Collection | ||
− | !width="300px"| | + | !width="300px"|Standard name |
!width="300px"|Notes | !width="300px"|Notes | ||
!width="200px"|Where used in GEOS-Chem? | !width="200px"|Where used in GEOS-Chem? | ||
Line 120: | Line 120: | ||
|1 | |1 | ||
|tavg1_2d_rad_Nx | |tavg1_2d_rad_Nx | ||
− | | | + | |surface_albedo |
| | | | ||
| | | | ||
Line 130: | Line 130: | ||
|1 | |1 | ||
|tavg1_2d_rad_Nx | |tavg1_2d_rad_Nx | ||
− | | | + | |total_cloud_area_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. | ||
Line 141: | Line 141: | ||
|W m<sup>-2</sup> | |W m<sup>-2</sup> | ||
|tavg1_2d_flx_Nx | |tavg1_2d_flx_Nx | ||
− | | | + | |total_latent_energy_flux |
| | | | ||
| | | | ||
Line 150: | Line 150: | ||
|kg m<sup>-2</sup> s<sup>-2</sup> | |kg m<sup>-2</sup> s<sup>-2</sup> | ||
|tavg1_2d_flx_Nx | |tavg1_2d_flx_Nx | ||
− | | | + | |evaporation_from_turbulence |
| | | | ||
| | | | ||
Line 159: | Line 159: | ||
|1 | |1 | ||
|tavg1_2d_flx_Nx | |tavg1_2d_flx_Nx | ||
− | | | + | |ice_covered_fraction_of_tile |
| | | | ||
*We bin FRSEAICE to create the SEAICE** fields listed below. | *We bin FRSEAICE to create the SEAICE** fields listed below. | ||
Line 169: | Line 169: | ||
|1 | |1 | ||
|tavg1_2d_lnd_Nx | |tavg1_2d_lnd_Nx | ||
− | | | + | |fractional_area_of_land_snowcover |
| | | | ||
| | | | ||
Line 179: | Line 179: | ||
|1 | |1 | ||
|tavg1_2d_lnd_Nx | |tavg1_2d_lnd_Nx | ||
− | | | + | |greenness_fraction |
| | | | ||
| | | | ||
Line 188: | Line 188: | ||
|1 | |1 | ||
|tavg1_2d_lnd_Nx | |tavg1_2d_lnd_Nx | ||
− | | | + | |root_zone_soil_wetness |
| | | | ||
| | | | ||
Line 197: | Line 197: | ||
|1 | |1 | ||
|tavg1_2d_lnd_Nx | |tavg1_2d_lnd_Nx | ||
− | | | + | |surface_soil_wetness |
| | | | ||
| | | | ||
Line 207: | Line 207: | ||
|W m<sup>-2</sup> | |W m<sup>-2</sup> | ||
|tavg1_2d_flx_Nx | |tavg1_2d_flx_Nx | ||
− | | | + | |sensible_heat_flux_from_turbulence |
| | | | ||
| | | | ||
Line 216: | Line 216: | ||
|m<sup>2</sup> m<sup>-2</sup> | |m<sup>2</sup> m<sup>-2</sup> | ||
|tavg1_2d_lnd_Nx | |tavg1_2d_lnd_Nx | ||
− | | | + | |leaf_area_index |
| | | | ||
*NOTE: GEOS-Chem uses MODIS LAI instead of the GEOS-FP LAI.. | *NOTE: GEOS-Chem uses MODIS LAI instead of the GEOS-FP LAI.. | ||
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|W m<sup>-2</sup> | |W m<sup>-2</sup> | ||
|tavg1_2d_rad_Nx | |tavg1_2d_rad_Nx | ||
− | | | + | |surface_net_downward_longwave_flux |
| | | | ||
| | | | ||
Line 235: | Line 235: | ||
|1 | |1 | ||
| - | | - | ||
− | | | + | |land_water_ice_flags |
| | | | ||
Line 247: | Line 247: | ||
|W m<sup>-2</sup> | |W m<sup>-2</sup> | ||
|tavg1_2d_rad_Nx | |tavg1_2d_rad_Nx | ||
− | | | + | |upwelling_longwave_flux_at_toa |
| | | | ||
| | | | ||
Line 256: | Line 256: | ||
|W m<sup>-2</sup> | |W m<sup>-2</sup> | ||
|tavg1_2d_lnd_Nx | |tavg1_2d_lnd_Nx | ||
− | | | + | |surface_downwelling_par_diffuse_flux |
| | | | ||
+ | *The name of this data field in the raw data file is "PARDFLAND". | ||
| | | | ||
*Biogenic emissions | *Biogenic emissions | ||
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|W m<sup>-2</sup> | |W m<sup>-2</sup> | ||
|tavg1_2d_lnd_Nx | |tavg1_2d_lnd_Nx | ||
− | | | + | |surface_downwelling_par_beam_flux |
| | | | ||
+ | *The name of this data field in the raw data file is "PARDRLAND". | ||
| | | | ||
*Biogenic emissions | *Biogenic emissions | ||
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|m | |m | ||
|tavg1_2d_flx_Nx | |tavg1_2d_flx_Nx | ||
− | | | + | |planetary_boundary_layer_height |
| | | | ||
| | | | ||
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|-valign="top" | |-valign="top" | ||
|PRECANV | |PRECANV | ||
− | |kg m<sup>-2</sup> s<sup>- | + | |kg m<sup>-2</sup> s<sup>-1</sup> |
|tavg1_2d_flx_Nx | |tavg1_2d_flx_Nx | ||
− | | | + | |anvil_precipitation |
| | | | ||
| | | | ||
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|-valign="top" | |-valign="top" | ||
|PRECCON | |PRECCON | ||
− | |kg m<sup>-2</sup> s<sup>- | + | |kg m<sup>-2</sup> s<sup>-1</sup> |
|tavg1_2d_flx_Nx | |tavg1_2d_flx_Nx | ||
− | | | + | |convective_precipitation |
| | | | ||
| | | | ||
Line 300: | Line 302: | ||
|-valign="top" | |-valign="top" | ||
|PRECLSC | |PRECLSC | ||
− | |kg m<sup>-2</sup> s<sup>- | + | |kg m<sup>-2</sup> s<sup>-1</sup> |
|tavg1_2d_flx_Nx | |tavg1_2d_flx_Nx | ||
− | | | + | |nonanvil_large_scale_precipitation |
| | | | ||
| | | | ||
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|-valign="top" | |-valign="top" | ||
|PRECSNO | |PRECSNO | ||
− | |kg m<sup>-2</sup> s<sup>- | + | |kg m<sup>-2</sup> s<sup>-1</sup> |
|tavg1_2d_flx_Nx | |tavg1_2d_flx_Nx | ||
− | | | + | |snowfall |
| | | | ||
| | | | ||
Line 318: | Line 320: | ||
|-valign="top" | |-valign="top" | ||
|PRECTOT | |PRECTOT | ||
− | |kg m<sup>-2</sup> s<sup>- | + | |kg m<sup>-2</sup> s<sup>-1</sup> |
|tavg1_2d_flx_Nx | |tavg1_2d_flx_Nx | ||
− | | | + | |total_precipitation |
| | | | ||
| | | | ||
Line 330: | Line 332: | ||
|kg kg<sup>-1</sup> | |kg kg<sup>-1</sup> | ||
|tavg1_2d_slv_Nx | |tavg1_2d_slv_Nx | ||
− | | | + | |2-meter_specific_humidity |
| | | | ||
| | | | ||
Line 339: | Line 341: | ||
|kg kg<sup>-1</sup> | |kg kg<sup>-1</sup> | ||
|tavg1_2d_slv_Nx | |tavg1_2d_slv_Nx | ||
− | | | + | |specific_humidity_at_850_hPa |
| | | | ||
| | | | ||
Line 348: | Line 350: | ||
|1 | |1 | ||
| - | | - | ||
− | | | + | |sea_area_ice_fraction_0-10% |
| | | | ||
*[[#Fractional sea ice|We create this by binning FRSEAICE.]] | *[[#Fractional sea ice|We create this by binning FRSEAICE.]] | ||
Line 359: | Line 361: | ||
|1 | |1 | ||
| - | | - | ||
− | | | + | |sea_area_ice_fraction_10-20% |
| | | | ||
*[[#Fractional sea ice|We create this by binning FRSEAICE.]] | *[[#Fractional sea ice|We create this by binning FRSEAICE.]] | ||
Line 370: | Line 372: | ||
|1 | |1 | ||
| - | | - | ||
− | | | + | |sea_area_ice_fraction_20-30% |
| | | | ||
*[[#Fractional sea ice|We create this by binning FRSEAICE.]] | *[[#Fractional sea ice|We create this by binning FRSEAICE.]] | ||
Line 381: | Line 383: | ||
|1 | |1 | ||
| - | | - | ||
− | | | + | |sea_area_ice_fraction_30-40% |
| | | | ||
*[[#Fractional sea ice|We create this by binning FRSEAICE.]] | *[[#Fractional sea ice|We create this by binning FRSEAICE.]] | ||
Line 392: | Line 394: | ||
|1 | |1 | ||
| - | | - | ||
− | | | + | |sea_area_ice_fraction_40-50% |
| | | | ||
*[[#Fractional sea ice|We create this by binning FRSEAICE.]] | *[[#Fractional sea ice|We create this by binning FRSEAICE.]] | ||
Line 403: | Line 405: | ||
|1 | |1 | ||
| - | | - | ||
− | | | + | |sea_area_ice_fraction_50-60% |
| | | | ||
*[[#Fractional sea ice|We create this by binning FRSEAICE.]] | *[[#Fractional sea ice|We create this by binning FRSEAICE.]] | ||
Line 414: | Line 416: | ||
|1 | |1 | ||
| - | | - | ||
− | | | + | |sea_area_ice_fraction_60-70% |
| | | | ||
*[[#Fractional sea ice|We create this by binning FRSEAICE.]] | *[[#Fractional sea ice|We create this by binning FRSEAICE.]] | ||
Line 425: | Line 427: | ||
|1 | |1 | ||
| - | | - | ||
− | | | + | |sea_area_ice_fraction_70-80% |
| | | | ||
*[[#Fractional sea ice|We create this by binning FRSEAICE.]] | *[[#Fractional sea ice|We create this by binning FRSEAICE.]] | ||
Line 436: | Line 438: | ||
|1 | |1 | ||
| - | | - | ||
− | | | + | |sea_area_ice_fraction_80-90% |
| | | | ||
*[[#Fractional sea ice|We create this by binning FRSEAICE.]] | *[[#Fractional sea ice|We create this by binning FRSEAICE.]] | ||
Line 447: | Line 449: | ||
|1 | |1 | ||
| - | | - | ||
− | | | + | |sea_area_ice_fraction_90-100% |
| | | | ||
*[[#Fractional sea ice|We create this by binning FRSEAICE.]] | *[[#Fractional sea ice|We create this by binning FRSEAICE.]] | ||
Line 456: | Line 458: | ||
|-valign="top" | |-valign="top" | ||
|SLP | |SLP | ||
− | | | + | |Pa |
|tavg1_2d_slv_Nx | |tavg1_2d_slv_Nx | ||
− | | | + | |sea_level_pressure |
| | | | ||
− | * | + | *We keep the original units of Pa. |
− | *We convert | + | *We convert to hPa when reading into GEOS-Chem. |
| | | | ||
*Kept for diagnostics | *Kept for diagnostics | ||
Line 469: | Line 471: | ||
|m | |m | ||
|tavg1_2d_lnd_Nx | |tavg1_2d_lnd_Nx | ||
− | | | + | |snow_depth |
| | | | ||
| | | | ||
Line 478: | Line 480: | ||
|kg m<sup>-2</sup> | |kg m<sup>-2</sup> | ||
|tavg1_2d_lnd_Nx | |tavg1_2d_lnd_Nx | ||
− | | | + | |Total_snow_storage_land |
| | | | ||
| | | | ||
Line 489: | Line 491: | ||
|W m<sup>-2</sup> | |W m<sup>-2</sup> | ||
|tavg1_2d_rad_Nx | |tavg1_2d_rad_Nx | ||
− | | | + | |surface_incoming_shortwave_flux |
| | | | ||
*GEOS-Chem carries this as <tt>State_Met%RADSWG</tt> | *GEOS-Chem carries this as <tt>State_Met%RADSWG</tt> | ||
Line 510: | Line 512: | ||
|Dobsons | |Dobsons | ||
|tavg1_2d_slv_Nx | |tavg1_2d_slv_Nx | ||
− | | | + | |total_column_ozone |
| | | | ||
| | | | ||
Line 519: | Line 521: | ||
|hPa | |hPa | ||
|tavg1_2d_slv_Nx | |tavg1_2d_slv_Nx | ||
− | | | + | |tropopause_pressure_based_on_thermal_estimate |
| | | | ||
*Original units of TROPPT are Pa. | *Original units of TROPPT are Pa. | ||
Line 530: | Line 532: | ||
|K | |K | ||
|tavg1_2d_slv_Nx | |tavg1_2d_slv_Nx | ||
− | | | + | |surface_skin_temperature |
| | | | ||
*GEOS-Chem carries this as <tt>State_Met%TSKIN</tt> | *GEOS-Chem carries this as <tt>State_Met%TSKIN</tt> | ||
Line 542: | Line 544: | ||
|K | |K | ||
|tavg1_2d_slv_Nx | |tavg1_2d_slv_Nx | ||
− | |2- | + | |2-meter_air_temperature |
| | | | ||
*GEOS-Chem carries this as <tt>State_Met%TS</tt> | *GEOS-Chem carries this as <tt>State_Met%TS</tt> | ||
Line 553: | Line 555: | ||
|K | |K | ||
|tavg1_2d_slv_Nx | |tavg1_2d_slv_Nx | ||
− | |10- | + | |10-meter_air_temperature |
| | | | ||
| | | | ||
Line 562: | Line 564: | ||
|m s<sup>-1</sup> | |m s<sup>-1</sup> | ||
|tavg1_2d_slv_Nx | |tavg1_2d_slv_Nx | ||
− | |10- | + | |10-meter_eastward_wind |
| | | | ||
| | | | ||
Line 575: | Line 577: | ||
|m s<sup>-1</sup> | |m s<sup>-1</sup> | ||
|tavg1_2d_flx_Nx | |tavg1_2d_flx_Nx | ||
− | | | + | |surface_velocity_scale |
| | | | ||
| | | | ||
Line 584: | Line 586: | ||
|m s<sup>-1</sup> | |m s<sup>-1</sup> | ||
|tavg1_2d_slv_Nx | |tavg1_2d_slv_Nx | ||
− | |10- | + | |10-meter_northward_wind |
| | | | ||
| | | | ||
Line 597: | Line 599: | ||
|m | |m | ||
|tavg1_2d_flx_Nx | |tavg1_2d_flx_Nx | ||
− | | | + | |surface_roughness |
| | | | ||
| | | | ||
Line 604: | Line 606: | ||
|} | |} | ||
− | --[[User:Bmy|Bob Y.]] ([[User talk:Bmy|talk]]) | + | --[[User:Bmy|Bob Y.]] ([[User talk:Bmy|talk]]) 16:21, 3 August 2015 (UTC) |
Revision as of 16:21, 3 August 2015
File: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
- These data will be timestamped 2015/01/01 at 00:00 GMT for convenience.
- 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)
- The Collection indicates the MERRA2 raw data files in which each field may be found.
- 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 | Standard name | Notes | Where used in GEOS-Chem? |
---|---|---|---|---|---|
FRLAKE | 1 | const_2d_asm_Nx | fraction_of_lake |
| |
FRLAND | 1 | const_2d_asm_Nx | fraction_of_land |
| |
FRLANDIC(E) | 1 | const_2d_asm_Nx | fraction_of_land_ice |
|
|
FROCEAN | 1 | const_2d_asm_Nx | fraction_of_ocean |
| |
PHIS | m2 s-2 | const_2d_asm_Nx | surface_geopotential_height |
|
--Bob Y. (talk) 15:48, 3 August 2015 (UTC)
A1 fields
- 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)
- All A1 fields are 2-dimensional (lon,lat)
- Timestamps (i.e. center of averaging period): 00:30, 01:30, 02:30 ... 23:30 GMT
- 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 | Standard name | Notes | Where used in GEOS-Chem? |
---|---|---|---|---|---|
ALBEDO | 1 | tavg1_2d_rad_Nx | surface_albedo |
| |
CLDTOT | 1 | tavg1_2d_rad_Nx | total_cloud_area_fraction |
|
|
EFLUX | W m-2 | tavg1_2d_flx_Nx | total_latent_energy_flux |
| |
EVAP | kg m-2 s-2 | tavg1_2d_flx_Nx | evaporation_from_turbulence |
| |
FRSEAICE | 1 | tavg1_2d_flx_Nx | ice_covered_fraction_of_tile |
|
|
FRSNO | 1 | tavg1_2d_lnd_Nx | fractional_area_of_land_snowcover |
| |
GRN | 1 | tavg1_2d_lnd_Nx | greenness_fraction |
| |
GWETROOT | 1 | tavg1_2d_lnd_Nx | root_zone_soil_wetness |
| |
GWETTOP | 1 | tavg1_2d_lnd_Nx | surface_soil_wetness |
| |
HFLUX | W m-2 | tavg1_2d_flx_Nx | sensible_heat_flux_from_turbulence |
| |
LAI | m2 m-2 | tavg1_2d_lnd_Nx | leaf_area_index |
|
|
LWGNT | W m-2 | tavg1_2d_rad_Nx | surface_net_downward_longwave_flux |
| |
LWI | 1 | - | land_water_ice_flags |
|
|
LWTUP | W m-2 | tavg1_2d_rad_Nx | upwelling_longwave_flux_at_toa |
| |
PARDF | W m-2 | tavg1_2d_lnd_Nx | surface_downwelling_par_diffuse_flux |
|
|
PARDR | W m-2 | tavg1_2d_lnd_Nx | surface_downwelling_par_beam_flux |
|
|
PBLH | m | tavg1_2d_flx_Nx | planetary_boundary_layer_height |
| |
PRECANV | kg m-2 s-1 | tavg1_2d_flx_Nx | anvil_precipitation |
| |
PRECCON | kg m-2 s-1 | tavg1_2d_flx_Nx | convective_precipitation |
| |
PRECLSC | kg m-2 s-1 | tavg1_2d_flx_Nx | nonanvil_large_scale_precipitation |
| |
PRECSNO | kg m-2 s-1 | tavg1_2d_flx_Nx | snowfall |
| |
PRECTOT | kg m-2 s-1 | tavg1_2d_flx_Nx | total_precipitation |
| |
QV2M | kg kg-1 | tavg1_2d_slv_Nx | 2-meter_specific_humidity |
| |
Q850 | kg kg-1 | tavg1_2d_slv_Nx | specific_humidity_at_850_hPa |
| |
SEAICE00 | 1 | - | sea_area_ice_fraction_0-10% |
| |
SEAICE10 | 1 | - | sea_area_ice_fraction_10-20% |
| |
SEAICE20 | 1 | - | sea_area_ice_fraction_20-30% |
| |
SEAICE30 | 1 | - | sea_area_ice_fraction_30-40% |
| |
SEAICE40 | 1 | - | sea_area_ice_fraction_40-50% |
| |
SEAICE50 | 1 | - | sea_area_ice_fraction_50-60% |
| |
SEAICE60 | 1 | - | sea_area_ice_fraction_60-70% |
| |
SEAICE70 | 1 | - | sea_area_ice_fraction_70-80% |
| |
SEAICE80 | 1 | - | sea_area_ice_fraction_80-90% |
| |
SEAICE90 | 1 | - | sea_area_ice_fraction_90-100% |
| |
SLP | Pa | tavg1_2d_slv_Nx | sea_level_pressure |
|
|
SNODP | m | tavg1_2d_lnd_Nx | snow_depth |
| |
SNOMAS | kg m-2 | tavg1_2d_lnd_Nx | Total_snow_storage_land |
| |
SWGDN | W m-2 | tavg1_2d_rad_Nx | surface_incoming_shortwave_flux |
|
|
SWGNT | W m-2 | tavg1_2d_rad_Nx | Surface net downward shortwave flux |
| |
TO3 | Dobsons | tavg1_2d_slv_Nx | total_column_ozone |
| |
TROPPT | hPa | tavg1_2d_slv_Nx | tropopause_pressure_based_on_thermal_estimate |
|
|
TS | K | tavg1_2d_slv_Nx | surface_skin_temperature |
|
|
T2M | K | tavg1_2d_slv_Nx | 2-meter_air_temperature |
|
|
T10M | K | tavg1_2d_slv_Nx | 10-meter_air_temperature |
| |
U10M | m s-1 | tavg1_2d_slv_Nx | 10-meter_eastward_wind |
| |
USTAR | m s-1 | tavg1_2d_flx_Nx | surface_velocity_scale |
| |
V10M | m s-1 | tavg1_2d_slv_Nx | 10-meter_northward_wind |
| |
Z0M | m | tavg1_2d_flx_Nx | surface_roughness |
|