| /Ancillary_Data/landcover_class: | Array of Bytes [ = 0..1][ = 0..5999][ = 0..5999] HDF5_OBJ_FULLPATH: /Ancillary_Data/landcover_class coordinates: /Freeze_Thaw_Retrieval_Data/latitude /Freeze_Thaw_Retrieval_Data/longitude long_name: An enumerated type that specifies the predominant surface vegetation found in the grid cell. The AM (dimension AMPM=0) and PM (AMPM=1) observations are stored separately in the array. _FillValue: 254 |
| /Ancillary_Data/open_water_body_fraction: | Array of 32 bit Reals [ = 0..1][ = 0..5999][ = 0..5999] HDF5_OBJ_FULLPATH: /Ancillary_Data/open_water_body_fraction valid_min: 0. long_name: Fraction of the area of the grid cell surface covered by open water. Open water areas do not have vegetation at or on the water surface. The AM (dimension AMPM=0) and PM (AMPM=1) observations are stored separately in the array. coordinates: /Freeze_Thaw_Retrieval_Data/latitude /Freeze_Thaw_Retrieval_Data/longitude valid_max: 1. _FillValue: -9999. |
| /Ancillary_Data/altitude_std_dev: | Array of 32 bit Reals [ = 0..1][ = 0..5999][ = 0..5999] HDF5_OBJ_FULLPATH: /Ancillary_Data/altitude_std_dev units: meters long_name: The standard deviation of the Earth surface elevation within the 3km cell. This element provides a surface roughness measure. The AM (dimension AMPM=0) and PM (AMPM=1) observations are stored separately in the array. coordinates: /Freeze_Thaw_Retrieval_Data/latitude /Freeze_Thaw_Retrieval_Data/longitude valid_min: 0. valid_max: 1000. _FillValue: -9999. |
| /Ancillary_Data/altitude_dem: | Array of 32 bit Reals [ = 0..1][ = 0..5999][ = 0..5999] HDF5_OBJ_FULLPATH: /Ancillary_Data/altitude_dem units: meters long_name: The Earth surface elevation within the 3km cell. The AM (dimension AMPM=0) and PM (AMPM=1) observations are stored separately in the array. coordinates: /Freeze_Thaw_Retrieval_Data/latitude /Freeze_Thaw_Retrieval_Data/longitude valid_min: -1000. valid_max: 10000. _FillValue: -9999. |
| /Freeze_Thaw_Retrieval_Data/thaw_reference: | Array of 32 bit Reals [ = 0..1][ = 0..5999][ = 0..5999] HDF5_OBJ_FULLPATH: /Freeze_Thaw_Retrieval_Data/thaw_reference units: dB long_name: Reference sigma0 value used as a basis to indicate thawed conditions. The AM (dimension AMPM=0) and PM (AMPM=1) observations are stored separately in the array. coordinates: /Freeze_Thaw_Retrieval_Data/latitude /Freeze_Thaw_Retrieval_Data/longitude valid_min: -50. valid_max: 10. _FillValue: -9999. |
| /Freeze_Thaw_Retrieval_Data/freeze_reference_date: | Array of Strings [ = 0..1][ = 0..5999][ = 0..5999] HDF5_OBJ_FULLPATH: /Freeze_Thaw_Retrieval_Data/freeze_reference_date long_name: Date of the data used to determine the reference freeze condition. The AM (dimension AMPM=0) and PM (AMPM=1) observations are stored separately in the array. coordinates: /Freeze_Thaw_Retrieval_Data/latitude /Freeze_Thaw_Retrieval_Data/longitude |
| /Freeze_Thaw_Retrieval_Data/EASE_row_index: | Array of 16 bit Unsigned integers [ = 0..1][ = 0..5999][ = 0..5999] HDF5_OBJ_FULLPATH: /Freeze_Thaw_Retrieval_Data/EASE_row_index valid_min: 0 valid_max: 65535 long_name: The row index of the 3 km EASE grid cell that contains the associated data. The AM (dimension AMPM=0) and PM (AMPM=1) observations are stored separately in the array. coordinates: /Freeze_Thaw_Retrieval_Data/latitude /Freeze_Thaw_Retrieval_Data/longitude _FillValue: 65534 |
| /Freeze_Thaw_Retrieval_Data/freeze_thaw_time_utc: | Array of Strings [ = 0..1][ = 0..5999][ = 0..5999] HDF5_OBJ_FULLPATH: /Freeze_Thaw_Retrieval_Data/freeze_thaw_time_utc long_name: Time of the freeze-thaw determination for this particular element in UTC. The AM (dimension AMPM=0) and PM (AMPM=1) observations are stored separately in the array. coordinates: /Freeze_Thaw_Retrieval_Data/latitude /Freeze_Thaw_Retrieval_Data/longitude |
| /Freeze_Thaw_Retrieval_Data/longitude: | Array of 32 bit Reals [ = 0..1][ = 0..5999][ = 0..5999] HDF5_OBJ_FULLPATH: /Freeze_Thaw_Retrieval_Data/longitude units: degrees_east long_name: Longitude of the center of the Earth based grid cell. The AM (dimension AMPM=0) and PM (AMPM=1) observations are stored separately in the array. |
| /Freeze_Thaw_Retrieval_Data/transition_state_flag: | Array of Bytes [ = 0..5999][ = 0..5999] HDF5_OBJ_FULLPATH: /Freeze_Thaw_Retrieval_Data/transition_state_flag valid_min: 0 valid_max: 1 long_name: Boolean that indicates whether soil is in transitional state from AM to PM on the same day. 0 indicates state is not in transition, 1 indicates state is in transition. coordinates: /Freeze_Thaw_Retrieval_Data/latitude /Freeze_Thaw_Retrieval_Data/longitude _FillValue: 254 |
| /Freeze_Thaw_Retrieval_Data/latitude: | Array of 32 bit Reals [ = 0..1][ = 0..5999][ = 0..5999] HDF5_OBJ_FULLPATH: /Freeze_Thaw_Retrieval_Data/latitude units: degrees_north long_name: Latitude of the center of the Earth based grid cell. The AM (dimension AMPM=0) and PM (AMPM=1) observations are stored separately in the array. |
| /Freeze_Thaw_Retrieval_Data/retrieval_qual_flag: | Array of 16 bit Unsigned integers [ = 0..1][ = 0..5999][ = 0..5999] HDF5_OBJ_FULLPATH: /Freeze_Thaw_Retrieval_Data/retrieval_qual_flag _FillValue: 65534 long_name: Sequence of bit flags that indicate the conditions and the quality of the freeze-thaw retrieval. The AM (dimension AMPM=0) and PM (AMPM=1) observations are stored separately in the array. coordinates: /Freeze_Thaw_Retrieval_Data/latitude /Freeze_Thaw_Retrieval_Data/longitude flag_masks: 1s, 2s, 4s, 8s, 16s, 32s flag_meanings: Retrieval_recommended_flag Retrieval_attempted_flag Retrieval_success_flag Radar_water_body_detection_success_flag Freeze-thaw_retrieval_success_flag Radar_vegetation_index_retrieval_success_flag |
| /Freeze_Thaw_Retrieval_Data/freeze_thaw_uncertainty: | Array of 32 bit Reals [ = 0..1][ = 0..5999][ = 0..5999] HDF5_OBJ_FULLPATH: /Freeze_Thaw_Retrieval_Data/freeze_thaw_uncertainty valid_min: -999999.875 long_name: Uncertainty measure for the recorded freeze-thaw result. Method to determine uncertainty is TBD. The AM (dimension AMPM=0) and PM (AMPM=1) observations are stored separately in the array. coordinates: /Freeze_Thaw_Retrieval_Data/latitude /Freeze_Thaw_Retrieval_Data/longitude valid_max: 999999.875 _FillValue: -9999. |
| /Freeze_Thaw_Retrieval_Data/transition_direction: | Array of Bytes [ = 0..5999][ = 0..5999] HDF5_OBJ_FULLPATH: /Freeze_Thaw_Retrieval_Data/transition_direction long_name: Boolean that indicates transitional direction. 0 indicates AM frozen, PM thawed, 1 indicates AM thawed, PM frozen. Value is always zero if not in transition state. coordinates: /Freeze_Thaw_Retrieval_Data/latitude /Freeze_Thaw_Retrieval_Data/longitude valid_min: 0 valid_max: 1 _FillValue: 254 |
| /Freeze_Thaw_Retrieval_Data/freeze_thaw: | Array of Bytes [ = 0..1][ = 0..5999][ = 0..5999] HDF5_OBJ_FULLPATH: /Freeze_Thaw_Retrieval_Data/freeze_thaw valid_min: 0 valid_max: 1 long_name: Boolean that indicates whether soil within cell is frozen or thawed. A value of zero value implies thawed conditions, a value of 1 implies frozen. The AM (dimension AMPM=0) and PM (AMPM=1) observations are stored separately in the array. coordinates: /Freeze_Thaw_Retrieval_Data/latitude /Freeze_Thaw_Retrieval_Data/longitude _FillValue: 254 |
| /Freeze_Thaw_Retrieval_Data/data_sampling_density: | Array of 32 bit Reals [ = 0..1][ = 0..5999][ = 0..5999] HDF5_OBJ_FULLPATH: /Freeze_Thaw_Retrieval_Data/data_sampling_density units: km long_name: Average distance between data samples in a window that surrounds the grid cell. Window size is TBD. The AM (dimension AMPM=0) and PM (AMPM=1) observations are stored separately in the array. coordinates: /Freeze_Thaw_Retrieval_Data/latitude /Freeze_Thaw_Retrieval_Data/longitude valid_min: 0. valid_max: 2. _FillValue: -9999. |
| /Freeze_Thaw_Retrieval_Data/thaw_reference_date: | Array of Strings [ = 0..1][ = 0..5999][ = 0..5999] HDF5_OBJ_FULLPATH: /Freeze_Thaw_Retrieval_Data/thaw_reference_date long_name: Date of the data used to determine the reference thawed conditon. The AM (dimension AMPM=0) and PM (AMPM=1) observations are stored separately in the array. coordinates: /Freeze_Thaw_Retrieval_Data/latitude /Freeze_Thaw_Retrieval_Data/longitude |
| /Freeze_Thaw_Retrieval_Data/EASE_column_index: | Array of 16 bit Unsigned integers [ = 0..1][ = 0..5999][ = 0..5999] HDF5_OBJ_FULLPATH: /Freeze_Thaw_Retrieval_Data/EASE_column_index valid_min: 0 valid_max: 65535 long_name: The column index of the 3 km EASE grid cell that contains the associated data. The AM (dimension AMPM=0) and PM (AMPM=1) observations are stored separately in the array. coordinates: /Freeze_Thaw_Retrieval_Data/latitude /Freeze_Thaw_Retrieval_Data/longitude _FillValue: 65534 |
| /Freeze_Thaw_Retrieval_Data/freeze_thaw_time_seconds: | Array of 64 bit Reals [ = 0..1][ = 0..5999][ = 0..5999] HDF5_OBJ_FULLPATH: /Freeze_Thaw_Retrieval_Data/freeze_thaw_time_seconds units: seconds long_name: Time of the freeze-thaw determination for this particular element in seconds from the standard epoch. The AM (dimension AMPM=0) and PM (AMPM=1) observations are stored separately in the array. coordinates: /Freeze_Thaw_Retrieval_Data/latitude /Freeze_Thaw_Retrieval_Data/longitude valid_min: -999999.90000000002 valid_max: 999999.90000000002 _FillValue: -9999. |
| /Freeze_Thaw_Retrieval_Data/surface_flag: | Array of 16 bit Unsigned integers [ = 0..1][ = 0..5999][ = 0..5999] HDF5_OBJ_FULLPATH: /Freeze_Thaw_Retrieval_Data/surface_flag long_name: Bit flags that record ambient surface conditions for the grid cell coordinates: /Freeze_Thaw_Retrieval_Data/latitude /Freeze_Thaw_Retrieval_Data/longitude _FillValue: 65534 flag_masks: 1s, 2s, 4s, 8s, 16s, 32s, 64s, 128s, 256s, 512s, 1024s, 2048s flag_meanings: 3_km_static_water_body_flag 3_km_radar_water_body_detection_flag 3_km_coastal_proximity_flag 3_km_urban_area_flag 3_km_precipitation_flag 3_km_snow_or_ice_flag 3_km_permanent_snow_or_ice_flag 3_km_radar_frozen_ground_flag 3_km_model_frozen_ground_flag 3_km_mountainous_terrain_flag 3_km_dense_vegetation_flag 3_km_nadir_region_flag |
| /Freeze_Thaw_Retrieval_Data/freeze_reference: | Array of 32 bit Reals [ = 0..1][ = 0..5999][ = 0..5999] HDF5_OBJ_FULLPATH: /Freeze_Thaw_Retrieval_Data/freeze_reference units: dB long_name: Reference sigma0 value used as a basis to indicate frozen conditions. The AM (dimension AMPM=0) and PM (AMPM=1) observations are stored separately in the array. coordinates: /Freeze_Thaw_Retrieval_Data/latitude /Freeze_Thaw_Retrieval_Data/longitude valid_min: -50. valid_max: 10. _FillValue: -9999. |
| /Freeze_Thaw_Retrieval_Data/reference_image_threshold: | Array of 32 bit Reals [ = 0..1][ = 0..5999][ = 0..5999] HDF5_OBJ_FULLPATH: /Freeze_Thaw_Retrieval_Data/reference_image_threshold units: dB long_name: Threshold based on reference freeze and thaw to differentiate between freeze and thaw conditions. The AM (dimension AMPM=0) and PM (AMPM=1) observations are stored separately in the array. coordinates: /Freeze_Thaw_Retrieval_Data/latitude /Freeze_Thaw_Retrieval_Data/longitude valid_min: -1. valid_max: 1. _FillValue: -9999. |
| /Radar_Data/kp_vv: | Array of 32 bit Reals [ = 0..1][ = 0..5999][ = 0..5999] HDF5_OBJ_FULLPATH: /Radar_Data/kp_vv valid_min: -0.009999999776 long_name: Overall error measure for VV-pol Sigma0 within the grid cell, includes calibration, RFI and contamination effects. The AM (dimension AMPM=0) and PM (AMPM=1) observations are stored separately in the array. coordinates: /Freeze_Thaw_Retrieval_Data/latitude /Freeze_Thaw_Retrieval_Data/longitude valid_max: 1. _FillValue: -9999. |
| /Radar_Data/sigma0_qual_flag_hh: | Array of 32 bit Unsigned integers [ = 0..1][ = 0..5999][ = 0..5999] HDF5_OBJ_FULLPATH: /Radar_Data/sigma0_qual_flag_hh _FillValue: 4294967294 long_name: Representative quality flags of horizontal polarization sigma0 measures in the grid cell. The AM (dimension AMPM=0) and PM (AMPM=1) observations are stored separately in the array. coordinates: /Freeze_Thaw_Retrieval_Data/latitude /Freeze_Thaw_Retrieval_Data/longitude flag_masks: 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072 flag_meanings: Mean_horizontal_polarization_quality_flag Forward_looking_horizontal_polarization_quality_flag Aft_looking_horizontal_polarization_quality_flag Mean_horizontal_polarization_range_flag Forward_looking_horizontal_polarization_range_flag Aft_looking_horizontal_polarization_range_flag Mean_horizontal_polarization_RFI_clean_flag Mean_horizontal_polarization_RFI_repair_flag Forward_looking_horizontal_polarization_RFI_clean_flag Forward_looking_horizontal_polarization_RFI_repair_flag Aft_looking_horizontal_polarization_RFI_clean_flag Aft_looking_horizontal_polarization_RFI_repair_flag Mean_horizontal_polarization_Faraday_Rotation_Flag Forward_looking_horizontal_polarization_Faraday_Rotation_Flag Aft_looking_horizontal_polarization_Faraday_Rotation_Flag Mean_horizontal_polarization_Kp_flag Forward_looking_horizontal_polarization_Kp_flag Aft_looking_horizontal_polarization_Kp_flag |
| /Radar_Data/sigma0_hh_mean: | Array of 32 bit Reals [ = 0..1][ = 0..5999][ = 0..5999] HDF5_OBJ_FULLPATH: /Radar_Data/sigma0_hh_mean valid_min: -0.009999999776 long_name: Mean of 1 km instrument resolution HH-pol backscatter in the 3 km Earth grid cell. The AM (dimension AMPM=0) and PM (AMPM=1) observations are stored separately in the array. coordinates: /Freeze_Thaw_Retrieval_Data/latitude /Freeze_Thaw_Retrieval_Data/longitude valid_max: 10. _FillValue: -9999. |
| /Radar_Data/sigma0_qual_flag_vv: | Array of 32 bit Unsigned integers [ = 0..1][ = 0..5999][ = 0..5999] HDF5_OBJ_FULLPATH: /Radar_Data/sigma0_qual_flag_vv _FillValue: 4294967294 long_name: Representative quality flags of vertical polarization sigma0 measures in the grid cell. The AM (dimension AMPM=0) and PM (AMPM=1) observations are stored separately in the array. coordinates: /Freeze_Thaw_Retrieval_Data/latitude /Freeze_Thaw_Retrieval_Data/longitude flag_masks: 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072 flag_meanings: Mean_vertical_polarization_quality_flag Forward_looking_vertical_polarization_quality_flag Aft_looking_vertical_polarization_quality_flag Mean_vertical_polarization_range_flag Forward_looking_vertical_polarization_range_flag Aft_looking_vertical_polarization_range_flag Mean_vertical_polarization_RFI_clean_flag Mean_vertical_polarization_RFI_repair_flag Forward_looking_vertical_polarization_RFI_clean_flag Forward_looking_vertical_polarization_RFI_repair_flag Aft_looking_vertical_polarization_RFI_clean_flag Aft_looking_vertical_polarization_RFI_repair_flag Mean_vertical_polarization_Faraday_Rotation_Flag Forward_looking_vertical_polarization_Faraday_Rotation_Flag Aft_looking_vertical_polarization_Faraday_Rotation_Flag Mean_vertical_polarization_Kp_flag Forward_looking_vertical_polarization_Kp_flag Aft_looking_vertical_polarization_Kp_flag |
| /Radar_Data/sigma0_qual_flag_xpol: | Array of 32 bit Unsigned integers [ = 0..1][ = 0..5999][ = 0..5999] HDF5_OBJ_FULLPATH: /Radar_Data/sigma0_qual_flag_xpol _FillValue: 4294967294 long_name: Representative quality flags of cross polarized sigma0 measures in the grid cell. The AM (dimension AMPM=0) and PM (AMPM=1) observations are stored separately in the array. coordinates: /Freeze_Thaw_Retrieval_Data/latitude /Freeze_Thaw_Retrieval_Data/longitude flag_masks: 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072 flag_meanings: Mean_cross_polarized_quality_flag Forward_looking_cross_polarized_quality_flag Aft_looking_cross_polarized_quality_flag Mean_cross_polarized_range_flag Forward_looking_cross_polarized_range_flag Aft_looking_cross_polarized_range_flag Mean_cross_polarized_RFI_clean_flag Mean_cross_polarized_RFI_repair_flag Forward_looking_cross_polarized_RFI_clean_flag Forward_looking_cross_polarized_RFI_repair_flag Aft_looking_cross_polarized_RFI_clean_flag Aft_looking_cross_polarized_RFI_repair_flag Mean_cross_polarized_Faraday_Rotation_Flag Forward_looking_cross_polarized_Faraday_Rotation_Flag Aft_looking_cross_polarized_Faraday_Rotation_Flag Mean_cross_polarized_Kp_flag Forward_looking_cross_polarized_Kp_flag Aft_looking_cross_polarized_Kp_flag |
| /Radar_Data/kp_xpol: | Array of 32 bit Reals [ = 0..1][ = 0..5999][ = 0..5999] HDF5_OBJ_FULLPATH: /Radar_Data/kp_xpol valid_min: -0.009999999776 long_name: Overall error measure for cross-pol Sigma0 within the grid cell, includes calibration, RFI and contamination effects. The AM (dimension AMPM=0) and PM (AMPM=1) observations are stored separately in the array. coordinates: /Freeze_Thaw_Retrieval_Data/latitude /Freeze_Thaw_Retrieval_Data/longitude valid_max: 1. _FillValue: -9999. |
| /Radar_Data/sigma0_vv_mean: | Array of 32 bit Reals [ = 0..1][ = 0..5999][ = 0..5999] HDF5_OBJ_FULLPATH: /Radar_Data/sigma0_vv_mean valid_min: -0.009999999776 long_name: Mean of 1 km instrument resolution VV-pol backscatter in the 3 km Earth grid cell. The AM (dimension AMPM=0) and PM (AMPM=1) observations are stored separately in the array. coordinates: /Freeze_Thaw_Retrieval_Data/latitude /Freeze_Thaw_Retrieval_Data/longitude valid_max: 10. _FillValue: -9999. |
| /Radar_Data/sigma0_xpol_mean: | Array of 32 bit Reals [ = 0..1][ = 0..5999][ = 0..5999] HDF5_OBJ_FULLPATH: /Radar_Data/sigma0_xpol_mean valid_min: -0.009999999776 long_name: Mean of 1 km instrument resolution cross-polarization backscatter in the 3 km Earth grid cell. The AM (dimension AMPM=0) and PM (AMPM=1) observations are stored separately in the array. coordinates: /Freeze_Thaw_Retrieval_Data/latitude /Freeze_Thaw_Retrieval_Data/longitude valid_max: 10. _FillValue: -9999. |
| /Radar_Data/kp_hh: | Array of 32 bit Reals [ = 0..1][ = 0..5999][ = 0..5999] HDF5_OBJ_FULLPATH: /Radar_Data/kp_hh valid_min: -0.009999999776 long_name: Overall error measure for HH-pol Sigma0 within the grid cell, includes calibration, RFI and contamination effects. The AM (dimension AMPM=0) and PM (AMPM=1) observations are stored separately in the array. coordinates: /Freeze_Thaw_Retrieval_Data/latitude /Freeze_Thaw_Retrieval_Data/longitude valid_max: 1. _FillValue: -9999. |