| grid_mapping_name: | lambert_cylindrical_equal_area |
| standard_parallel: | 30. |
| false_easting: | 0. |
| false_northing: | 0. |
| longitude_of_central_meridian: | 0. |
| Contact: | http://gmao.gsfc.nasa.gov |
| Institution: | NASA Global Modeling and Assimilation Office |
| History: | File written by ldas2daac.x |
| Comment: | HDF-5 |
| Filename: | /discover/nobackup/projects/gmao/smap/SMAP_L4/L4_SM/Vv7031/aup/Y2024/M06/D19/SMAP_L4_SM_aup_20240619T000000_Vv7031_001.h5 |
| Title: | SMAP L4_SM Analysis Update (AUP) Data Granule |
| Conventions: | CF |
| References: | see SMAP L4_SM Product Specification Documentation |
| Source: | v17.11.1 |
| y: | Array of 64 bit Reals [y = 0..1623] long_name: Y coordinate of cell center in EASE 2.0 global projection standard_name: projection_y_coordinate axis: Y units: m |
| cell_lon: | Array of 32 bit Reals [y = 0..1623][x = 0..3855] valid_max: 179.9989929 _FillValue: -9999. fmissing_value: -9999. missing_value: -9999. DIMENSION_LABELS: y, x units: degrees grid_mapping: EASE2_global_projection valid_min: -180. long_name: The longitude of the center of each cell in the cylindrical 9 km Earth-fixed EASE-Grid 2.0. Zero longitude represents the Prime Meridian. Positive longitudes represent locations to the East of the Prime Meridian. Negative longitudes represent locations to the West of the Prime Meridian. |
| x: | Array of 64 bit Reals [x = 0..3855] long_name: X coordinate of cell center in EASE 2.0 global projection standard_name: projection_x_coordinate axis: X units: m |
| cell_lat: | Array of 32 bit Reals [y = 0..1623][x = 0..3855] valid_max: 90. _FillValue: -9999. fmissing_value: -9999. missing_value: -9999. DIMENSION_LABELS: y, x units: degrees grid_mapping: EASE2_global_projection valid_min: -90. long_name: The geodetic latitude of the center of each cell in the cylindrical 9 km Earth-fixed EASE-Grid 2.0. Zero latitude represents the Equator. Positive latitudes represent locations North of the Equator. Negative latitudes represent locations South of the Equator. |
| cell_row: | Array of 32 bit Unsigned integers [y = 0..1623][x = 0..3855] valid_max: 1623 _FillValue: 4294967294 fmissing_value: 4294967294 missing_value: 4294967294 DIMENSION_LABELS: y, x units: dimensionless grid_mapping: EASE2_global_projection coordinates: /cell_lat /cell_lon valid_min: 0 long_name: The row index of each cell in the cylindrical 9 km Earth-fixed EASE-Grid 2.0. Type is Unsigned32. |
| time: | Array of 64 bit Reals [ = 0..0] long_name: Time units: seconds since 2000-01-01 11:58:55.816 actual_range: 772027200., 772027200. delta_t: 0000-00-00 03:00:00 |
| cell_column: | Array of 32 bit Unsigned integers [y = 0..1623][x = 0..3855] valid_max: 3855 _FillValue: 4294967294 fmissing_value: 4294967294 missing_value: 4294967294 DIMENSION_LABELS: y, x units: dimensionless grid_mapping: EASE2_global_projection coordinates: /cell_lat /cell_lon valid_min: 0 long_name: The column index of each cell in the cylindrical 9 km Earth-fixed EASE-Grid 2.0. Type is Unsigned32. |
| EASE2_global_projection: | Array of Strings [ = 0..0] grid_mapping_name: lambert_cylindrical_equal_area standard_parallel: 30. false_easting: 0. false_northing: 0. longitude_of_central_meridian: 0. |
| /Forecast_Data/sm_surface_forecast: | Array of 32 bit Reals [y = 0..1623][x = 0..3855] valid_max: 0.8999999762 _FillValue: -9999. fmissing_value: -9999. missing_value: -9999. DIMENSION_LABELS: y, x units: m3 m-3 grid_mapping: EASE2_global_projection coordinates: /cell_lat /cell_lon valid_min: 0. long_name: Catchment model forecast surface soil moisture (0-5 cm) |
| /Forecast_Data/tb_v_forecast: | Array of 32 bit Reals [y = 0..1623][x = 0..3855] valid_max: 350. _FillValue: -9999. fmissing_value: -9999. missing_value: -9999. DIMENSION_LABELS: y, x units: K grid_mapping: EASE2_global_projection coordinates: /cell_lat /cell_lon valid_min: 100. long_name: Composite resolution Catchment model forecast 1.41 GHz V-pol brightness temperature. Model forecast brightness temperatures that correspond to 36 km observations from the L1C_TB product are aggregated from 9 km to 36 km and then posted at 9 km for convenience. Output is only stored at times and locations for which input SMAP Level 1 or Level 2 data are ingested. If more than one overpass occurs for a given grid cell within the assimilation time window, output represents average over all overpass times. |
| /Forecast_Data/surface_temp_forecast: | Array of 32 bit Reals [y = 0..1623][x = 0..3855] valid_max: 350. _FillValue: -9999. fmissing_value: -9999. missing_value: -9999. DIMENSION_LABELS: y, x units: K grid_mapping: EASE2_global_projection coordinates: /cell_lat /cell_lon valid_min: 180. long_name: Catchment model forecast surface temperature |
| /Forecast_Data/tb_v_forecast_ensstd: | Array of 32 bit Reals [y = 0..1623][x = 0..3855] valid_max: 50. _FillValue: -9999. fmissing_value: -9999. missing_value: -9999. DIMENSION_LABELS: y, x units: K grid_mapping: EASE2_global_projection coordinates: /cell_lat /cell_lon valid_min: 0. long_name: Uncertainty (ensemble std-dev) of tb_v_forecast. Model forecast brightness temperatures that correspond to 36 km observations from the L1C_TB product are aggregated from 9 km to 36 km and then posted at 9 km for convenience. Output is only stored at times and locations for which input SMAP Level 1 or Level 2 data are ingested. If more than one overpass occurs for a given grid cell within the assimilation time window, output represents average over all overpass times. |
| /Forecast_Data/soil_temp_layer1_forecast: | Array of 32 bit Reals [y = 0..1623][x = 0..3855] valid_max: 340. _FillValue: -9999. fmissing_value: -9999. missing_value: -9999. DIMENSION_LABELS: y, x units: K grid_mapping: EASE2_global_projection coordinates: /cell_lat /cell_lon valid_min: 210. long_name: Catchment model forecast soil temperature in layer 1 of soil heat diffusion model |
| /Forecast_Data/sm_profile_forecast: | Array of 32 bit Reals [y = 0..1623][x = 0..3855] valid_max: 0.8999999762 _FillValue: -9999. fmissing_value: -9999. missing_value: -9999. DIMENSION_LABELS: y, x units: m3 m-3 grid_mapping: EASE2_global_projection coordinates: /cell_lat /cell_lon valid_min: 0. long_name: Catchment model forecast total profile soil moisture (0 cm to model bedrock depth) |
| /Forecast_Data/tb_h_forecast: | Array of 32 bit Reals [y = 0..1623][x = 0..3855] valid_max: 350. _FillValue: -9999. fmissing_value: -9999. missing_value: -9999. DIMENSION_LABELS: y, x units: K grid_mapping: EASE2_global_projection coordinates: /cell_lat /cell_lon valid_min: 100. long_name: Composite resolution Catchment model forecast 1.41 GHz H-pol brightness temperature. Model forecast brightness temperatures that correspond to 36 km observations from the L1C_TB product are aggregated from 9 km to 36 km and then posted at 9 km for convenience. Output is only stored at times and locations for which input SMAP Level 1 or Level 2 data are ingested. If more than one overpass occurs for a given grid cell within the assimilation time window, output represents average over all overpass times. |
| /Forecast_Data/sm_rootzone_forecast: | Array of 32 bit Reals [y = 0..1623][x = 0..3855] valid_max: 0.8999999762 _FillValue: -9999. fmissing_value: -9999. missing_value: -9999. DIMENSION_LABELS: y, x units: m3 m-3 grid_mapping: EASE2_global_projection coordinates: /cell_lat /cell_lon valid_min: 0. long_name: Catchment model forecast root zone soil moisture (0-100 cm) |
| /Forecast_Data/tb_h_forecast_ensstd: | Array of 32 bit Reals [y = 0..1623][x = 0..3855] valid_max: 50. _FillValue: -9999. fmissing_value: -9999. missing_value: -9999. DIMENSION_LABELS: y, x units: K grid_mapping: EASE2_global_projection coordinates: /cell_lat /cell_lon valid_min: 0. long_name: Uncertainty (ensemble std-dev) of tb_h_forecast. Model forecast brightness temperatures that correspond to 36 km observations from the L1C_TB product are aggregated from 9 km to 36 km and then posted at 9 km for convenience. Output is only stored at times and locations for which input SMAP Level 1 or Level 2 data are ingested. If more than one overpass occurs for a given grid cell within the assimilation time window, output represents average over all overpass times. |
| /Analysis_Data/sm_surface_analysis_ensstd: | Array of 32 bit Reals [y = 0..1623][x = 0..3855] valid_max: 1. _FillValue: -9999. fmissing_value: -9999. missing_value: -9999. DIMENSION_LABELS: y, x units: m3 m-3 grid_mapping: EASE2_global_projection coordinates: /cell_lat /cell_lon valid_min: 0. long_name: Uncertainty of analysis surface soil moisture (0-5 cm; ensemble std-dev) |
| /Analysis_Data/surface_temp_analysis_ensstd: | Array of 32 bit Reals [y = 0..1623][x = 0..3855] valid_max: 50. _FillValue: -9999. fmissing_value: -9999. missing_value: -9999. DIMENSION_LABELS: y, x units: K grid_mapping: EASE2_global_projection coordinates: /cell_lat /cell_lon valid_min: 0. long_name: Uncertainty of analysis surface temperature (ensemble std-dev) |
| /Analysis_Data/sm_rootzone_analysis_ensstd: | Array of 32 bit Reals [y = 0..1623][x = 0..3855] valid_max: 1. _FillValue: -9999. fmissing_value: -9999. missing_value: -9999. DIMENSION_LABELS: y, x units: m3 m-3 grid_mapping: EASE2_global_projection coordinates: /cell_lat /cell_lon valid_min: 0. long_name: Uncertainty of analysis root zone soil moisture (0-100 cm; ensemble std-dev) |
| /Analysis_Data/sm_surface_analysis: | Array of 32 bit Reals [y = 0..1623][x = 0..3855] valid_max: 0.8999999762 _FillValue: -9999. fmissing_value: -9999. missing_value: -9999. DIMENSION_LABELS: y, x units: m3 m-3 grid_mapping: EASE2_global_projection coordinates: /cell_lat /cell_lon valid_min: 0. long_name: Analysis surface soil moisture (0-5 cm) |
| /Analysis_Data/sm_profile_analysis_ensstd: | Array of 32 bit Reals [y = 0..1623][x = 0..3855] valid_max: 1. _FillValue: -9999. fmissing_value: -9999. missing_value: -9999. DIMENSION_LABELS: y, x units: m3 m-3 grid_mapping: EASE2_global_projection coordinates: /cell_lat /cell_lon valid_min: 0. long_name: Uncertainty of analysis total profile soil moisture (0 cm to model bedrock depth; ensemble std-dev) |
| /Analysis_Data/sm_rootzone_analysis: | Array of 32 bit Reals [y = 0..1623][x = 0..3855] valid_max: 0.8999999762 _FillValue: -9999. fmissing_value: -9999. missing_value: -9999. DIMENSION_LABELS: y, x units: m3 m-3 grid_mapping: EASE2_global_projection coordinates: /cell_lat /cell_lon valid_min: 0. long_name: Analysis root zone soil moisture (0-100 cm) |
| /Analysis_Data/sm_profile_analysis: | Array of 32 bit Reals [y = 0..1623][x = 0..3855] valid_max: 0.8999999762 _FillValue: -9999. fmissing_value: -9999. missing_value: -9999. DIMENSION_LABELS: y, x units: m3 m-3 grid_mapping: EASE2_global_projection coordinates: /cell_lat /cell_lon valid_min: 0. long_name: Analysis total profile soil moisture (0 cm to model bedrock depth) |
| /Analysis_Data/soil_temp_layer1_analysis: | Array of 32 bit Reals [y = 0..1623][x = 0..3855] valid_max: 340. _FillValue: -9999. fmissing_value: -9999. missing_value: -9999. DIMENSION_LABELS: y, x units: K grid_mapping: EASE2_global_projection coordinates: /cell_lat /cell_lon valid_min: 210. long_name: Analysis soil temperature in layer 1 of soil heat diffusion model |
| /Analysis_Data/soil_temp_layer1_analysis_ensstd: | Array of 32 bit Reals [y = 0..1623][x = 0..3855] valid_max: 50. _FillValue: -9999. fmissing_value: -9999. missing_value: -9999. DIMENSION_LABELS: y, x units: K grid_mapping: EASE2_global_projection coordinates: /cell_lat /cell_lon valid_min: 0. long_name: Uncertainty of analysis soil temperature in layer 1 of soil heat diffusion model (ensemble std-dev) |
| /Analysis_Data/surface_temp_analysis: | Array of 32 bit Reals [y = 0..1623][x = 0..3855] valid_max: 350. _FillValue: -9999. fmissing_value: -9999. missing_value: -9999. DIMENSION_LABELS: y, x units: K grid_mapping: EASE2_global_projection coordinates: /cell_lat /cell_lon valid_min: 180. long_name: Analysis surface temperature |
| /Observations_Data/tb_v_obs: | Array of 32 bit Reals [y = 0..1623][x = 0..3855] valid_max: 350. _FillValue: -9999. fmissing_value: -9999. missing_value: -9999. DIMENSION_LABELS: y, x units: K grid_mapping: EASE2_global_projection coordinates: /cell_lat /cell_lon valid_min: 100. long_name: Composite resolution observed (L2_SM_AP or L1C_TB) V-pol brightness temperature, represented as the average of fore and aft observations from the SMAP antenna. Observed brightness temperatures that originate from 36 km L1C_TB files are posted at 9 km here for convenience (as average over the fore and aft brightness temperatures, which are stored separately in the L1C_TB product). Output is only stored at times and locations for which input SMAP Level 1 or Level 2 data are ingested. If more than one overpass occurs for a given grid cell within the assimilation time window, output represents average over all overpass times. |
| /Observations_Data/tb_v_obs_time_sec: | Array of 64 bit Reals [y = 0..1623][x = 0..3855] valid_max: 946000000. _FillValue: -9999. fmissing_value: -9999. missing_value: -9999. DIMENSION_LABELS: y, x units: s grid_mapping: EASE2_global_projection coordinates: /cell_lat /cell_lon valid_min: 465156000. long_name: Time values as counts of International System (SI) seconds based on the J2000 epoch in Ephemeris Time (ET). The J2000 epoch starting point is January 1, 2000 at 12:00 ET, which translates to January 1, 2000 at 11:58:55.816 Universal Coordinated Time (UTC). Type is Float64. |
| /Observations_Data/tb_h_obs: | Array of 32 bit Reals [y = 0..1623][x = 0..3855] valid_max: 350. _FillValue: -9999. fmissing_value: -9999. missing_value: -9999. DIMENSION_LABELS: y, x units: K grid_mapping: EASE2_global_projection coordinates: /cell_lat /cell_lon valid_min: 100. long_name: Composite resolution observed (L2_SM_AP or L1C_TB) H-pol brightness temperature, represented as the average of fore and aft observations from the SMAP antenna. Observed brightness temperatures that originate from 36 km L1C_TB files are posted at 9 km here for convenience (as average over the fore and aft brightness temperatures, which are stored separately in the L1C_TB product). Output is only stored at times and locations for which input SMAP Level 1 or Level 2 data are ingested. If more than one overpass occurs for a given grid cell within the assimilation time window, output represents average over all overpass times. |
| /Observations_Data/tb_h_orbit_flag: | Array of 32 bit Unsigned integers [y = 0..1623][x = 0..3855] valid_max: 2 _FillValue: 4294967294 fmissing_value: 4294967294 missing_value: 4294967294 DIMENSION_LABELS: y, x units: dimensionless grid_mapping: EASE2_global_projection coordinates: /cell_lat /cell_lon valid_min: 0 long_name: Flag indicating the orbit direction of H-pol brightness temperature composite fields (tb_h_obs, tb_h_forecast, etc.): 0=average over ascending and descending orbits, 1=ascending orbits only, 2=descending orbits only. Type is Unsigned32. |
| /Observations_Data/tb_h_resolution_flag: | Array of 32 bit Unsigned integers [y = 0..1623][x = 0..3855] valid_max: 2 _FillValue: 4294967294 fmissing_value: 4294967294 missing_value: 4294967294 DIMENSION_LABELS: y, x units: dimensionless grid_mapping: EASE2_global_projection coordinates: /cell_lat /cell_lon valid_min: 1 long_name: Flag indicating the effective resolution of H-pol brightness temperature composite fields (tb_h_obs, tb_h_forecast, etc.): 1=36 km, 2=9 km. Type is Unsigned32. Output is only stored at times and locations for which input SMAP Level 1 or Level 2 data are ingested. If more than one overpass occurs for a given grid cell within the assimilation time window, output represents average over all overpass times. |
| /Observations_Data/tb_h_obs_errstd: | Array of 32 bit Reals [y = 0..1623][x = 0..3855] valid_max: 50. _FillValue: -9999. fmissing_value: -9999. missing_value: -9999. DIMENSION_LABELS: y, x units: K grid_mapping: EASE2_global_projection coordinates: /cell_lat /cell_lon valid_min: 0. long_name: Observation error std-dev for tb_h_obs_scaled. Observed brightness temperatures that originate from 36 km L1C_TB files are posted at 9 km here for convenience (as average over the fore and aft brightness temperatures, which are stored separately in the L1C_TB product). Output is only stored at times and locations for which input SMAP Level 1 or Level 2 data are ingested. If more than one overpass occurs for a given grid cell within the assimilation time window, output represents average over all overpass times. |
| /Observations_Data/tb_v_orbit_flag: | Array of 32 bit Unsigned integers [y = 0..1623][x = 0..3855] valid_max: 2 _FillValue: 4294967294 fmissing_value: 4294967294 missing_value: 4294967294 DIMENSION_LABELS: y, x units: dimensionless grid_mapping: EASE2_global_projection coordinates: /cell_lat /cell_lon valid_min: 0 long_name: Flag indicating the orbit direction of V-pol brightness temperature composite fields (tb_v_obs, tb_v_forecast, etc.): 0=average over ascending and descending orbits, 1=ascending orbits only, 2=descending orbits only. Type is Unsigned32. |
| /Observations_Data/tb_v_resolution_flag: | Array of 32 bit Unsigned integers [y = 0..1623][x = 0..3855] valid_max: 2 _FillValue: 4294967294 fmissing_value: 4294967294 missing_value: 4294967294 DIMENSION_LABELS: y, x units: dimensionless grid_mapping: EASE2_global_projection coordinates: /cell_lat /cell_lon valid_min: 1 long_name: Flag indicating the effective resolution of V-pol brightness temperature composite fields (tb_v_obs, tb_v_forecast, etc.): 1=36 km, 2=9 km. Type is Unsigned32. Output is only stored at times and locations for which input SMAP Level 1 or Level 2 data are ingested. If more than one overpass occurs for a given grid cell within the assimilation time window, output represents average over all overpass times. |
| /Observations_Data/tb_v_obs_assim: | Array of 32 bit Reals [y = 0..1623][x = 0..3855] valid_max: 350. _FillValue: -9999. fmissing_value: -9999. missing_value: -9999. DIMENSION_LABELS: y, x units: K grid_mapping: EASE2_global_projection coordinates: /cell_lat /cell_lon valid_min: 100. long_name: Assimilated value after model-based quality control and climatological adjustment (scaling) of tb_v_obs for consistency with the land models seasonally varying mean brightness temperature climatology. Observed brightness temperatures that originate from 36 km L1C_TB files are posted at 9 km here for convenience (as average over the fore and aft brightness temperatures, which are stored separately in the L1C_TB product). Output is only stored at times and locations for which input SMAP Level 1 or Level 2 data are ingested. If more than one overpass occurs for a given grid cell within the assimilation time window, output represents average over all overpass times. |
| /Observations_Data/tb_h_obs_assim: | Array of 32 bit Reals [y = 0..1623][x = 0..3855] valid_max: 350. _FillValue: -9999. fmissing_value: -9999. missing_value: -9999. DIMENSION_LABELS: y, x units: K grid_mapping: EASE2_global_projection coordinates: /cell_lat /cell_lon valid_min: 100. long_name: Assimilated value after model-based quality control and climatological adjustment (scaling) of tb_h_obs for consistency with the land models seasonally varying mean brightness temperature climatology. Observed brightness temperatures that originate from 36 km L1C_TB files are posted at 9 km here for convenience (as average over the fore and aft brightness temperatures, which are stored separately in the L1C_TB product). Output is only stored at times and locations for which input SMAP Level 1 or Level 2 data are ingested. If more than one overpass occurs for a given grid cell within the assimilation time window, output represents average over all overpass times. |
| /Observations_Data/tb_h_obs_time_sec: | Array of 64 bit Reals [y = 0..1623][x = 0..3855] valid_max: 946000000. _FillValue: -9999. fmissing_value: -9999. missing_value: -9999. DIMENSION_LABELS: y, x units: s grid_mapping: EASE2_global_projection coordinates: /cell_lat /cell_lon valid_min: 465156000. long_name: Time values as counts of International System (SI) seconds based on the J2000 epoch in Ephemeris Time (ET). The J2000 epoch starting point is January 1, 2000 at 12:00 ET, which translates to January 1, 2000 at 11:58:55.816 Universal Coordinated Time (UTC). Type is Float64. |
| /Observations_Data/tb_v_obs_errstd: | Array of 32 bit Reals [y = 0..1623][x = 0..3855] valid_max: 50. _FillValue: -9999. fmissing_value: -9999. missing_value: -9999. DIMENSION_LABELS: y, x units: K grid_mapping: EASE2_global_projection coordinates: /cell_lat /cell_lon valid_min: 0. long_name: Observation error std-dev for tb_v_obs_scaled. Observed brightness temperatures that originate from 36 km L1C_TB files are posted at 9 km here for convenience (as average over the fore and aft brightness temperatures, which are stored separately in the L1C_TB product). Output is only stored at times and locations for which input SMAP Level 1 or Level 2 data are ingested. If more than one overpass occurs for a given grid cell within the assimilation time window, output represents average over all overpass times. |