Level-3 Soil Moisture Data Fields
The following Notations are used in this document:
Type |
Description |
---|---|
Float64 | 64-bit or 8-byte floating point |
Int16 | 16-bit or 2-byte signed integer |
There are two Fill Values:
Fill Values |
Description |
---|---|
9999 | Indicates pixels that are void of any retrieval due to inherent gaps between available L2A swaths. |
-9999 | Indicates no retrieval due to bad brightness temperature data or screening by land surface classification, or unsuccessful retrieval due to retrieval values outside the physical range. |
Note: The dimension of each field is 586 rows x 1383 columns.
Field Name |
Data Type |
Description |
Scale Factor |
---|---|---|---|
A_Time |
Float64 |
Scan start time. International Atomic Time in seconds with 01 January 1993 as the zero base (TAI93) |
n/a |
A_TB06.9V (Res 1) |
Int16 |
6.9V GHz T_{b} (K) Level-2A 6.9 GHz data with a mean spatial resolution of 56 km were resampled to a 25 km EASE-Grid to create this data field. |
Multiply data values by 0.1 to obtain units in K. |
A_TB06.9H (Res 1) |
Int16 |
6.9H GHz T_{b} (K) Level-2A 6.9 GHz data with a mean spatial resolution of 56 km were resampled to a 25 km EASE-Grid to create this data field. |
Multiply data values by 0.1 to obtain units in K. |
A_TB10.7V (Res 1) |
Int16 |
10.7V GHz T_{b} (K) Level-2A 10.7 GHz data with a mean spatial resolution of 56 km were resampled to a 25 km EASE-Grid to create this data field. |
Multiply data values by 0.1 to obtain units in K. |
A_TB10.7H (Res 1) |
Int16 |
10.7H GHz T_{b} (K) Level-2A 10.7 GHz data with a mean spatial resolution of 56 km were resampled to a 25 km EASE-Grid to create this data field. |
Multiply data values by 0.1 to obtain units in K. |
A_TB18.7V (Res 1) |
Int16 |
18.7V GHz T_{b} (K) Level-2A 18.7 GHz data with a mean spatial resolution of 56 km were resampled to a 25 km EASE-Grid to create this data field. |
Multiply data values by 0.1 to obtain units in K. |
A_TB18.7H (Res 1) |
Int16 |
18.7H GHz T_{b} (K) Level-2A 18.7 GHz data with a mean spatial resolution of 56 km were resampled to a 25 km EASE-Grid to create this data field. |
Multiply data values by 0.1 to obtain units in K. |
A_TB36.5V (Res 1) |
Int16 |
36.5V GHz T_{b} (K) Level-2A 36.5 GHz data with a mean spatial resolution of 56 km were resampled to a 25 km EASE-Grid to create this data field. |
Multiply data values by 0.1 to obtain units in K. |
A_TB36.5H (Res 1) |
Int16 |
36.5H GHz T_{b} (K) Level-2A 36.5 GHz data with a mean spatial resolution of 56 km were resampled to a 25 km EASE-Grid to create this data field. |
Multiply data values by 0.1 to obtain units in K. |
A_TB36.5V (Res 4) |
Int16 |
36.5V GHz T_{b} (K) Level-2A 36.5 GHz data with a mean spatial resolution of 12 km were resampled to a 25 km EASE-Grid to create this data field. |
Multiply data values by 0.1 to obtain units in K. |
A_TB36.5H (Res 4) |
Int16 |
36.5H GHz T_{b} (K) Level-2A 36.5 GHz data with a mean spatial resolution of 12 km were resampled to a 25 km EASE-Grid to create this data field. |
Multiply data values by 0.1 to obtain units in K. |
A_TB89.0V (Res 4) |
Int16 |
89.0V GHz T_{b} (K) Level-2A 89.0 GHz data with a mean spatial resolution of 12 km were resampled to a 25 km EASE-Grid to create this data field. |
Multiply data values by 0.1 to obtain units in K. |
A_TB89.0H (Res 4) |
Int16 |
89.0H GHz T_{b} (K) Level-2A 89.0 GHz data with a mean spatial resolution of 12 km were resampled to a 25 km EASE-Grid to create this data field. |
Multiply data values by 0.1 to obtain units in K. |
A_Soil_Moisture |
Int16 |
Soil moisture at 10.7 GHz resolution (g cm^{-3}). Range: 0 to 500. | Multiply data values by 0.001 to obtain soil moisture in g cm^{-3}. |
A_Veg_Water_Content |
Int16 |
The Vegetation Water Content field (kg m^{-2}) incorporates the effects of vegetation and roughness together. See the Derivation Techniques and Algorithms section in the AMSR-E/Aqua L2B Surface Soil Moisture, Ancillary Parameters, & QC EASE-Grids Guide Document. When interpreted as vegetation water content, it is the total water content in the vertical column of vegetation averaged over the retrieval footprint. | Multiply data values by 0.01 to obtain vegetation water content in kg m^{-2}. |
A_Land_Surface_Temp |
Int16 |
Land Surface Temperature (K) is not calculated because of Radio Frequency Interference (RFI) contamination in the 6.9 GHz channels . The field contains only fill values. | Multiply data values by 0.1 to obtain units in K. |
A_Inversion_QC_Flag |
Int16 |
Inversion quality control flag. Also includes surface type flags encoded in individual bits of this integer. For a description of the contents, see the Processing Steps section of the AMSR-E/Aqua Daily L3 Surface Soil Moisture, Interpretive Parameters, & QC EASE-Grids Guide Document. For grid points such as open or inland water, a fill value of 9999 is assigned. |
n/a |
Field Name |
Data Type |
Description |
Scale Factor |
---|---|---|---|
D_Time | Float64 | Scan start time. International Atomic Time in seconds with 01 January 1993 as the zero base (TAI93). |
n/a |
D_TB06.9V (Res 1) |
Int16 |
6.9V GHz T_{b} (K) Level-2A 6.9 GHz data with a mean spatial resolution of 56 km were resampled to a 25 km EASE-Grid to create this data field. |
Multiply data values by 0.1 to obtain units in K. |
D_TB06.9H (Res 1) |
Int16 |
6.9H GHz T_{b} (K) Level-2A 6.9 GHz data with a mean spatial resolution of 56 km were resampled to a 25 km EASE-Grid to create this data field. |
Multiply data values by 0.1 to obtain units in K. |
D_TB10.7V (Res 1) |
Int16 |
10.7V GHz T_{b} (K) Level-2A 10.7 GHz data with a mean spatial resolution of 56 km were resampled to a 25 km EASE-Grid to create this data field. |
Multiply data values by 0.1 to obtain units in K. |
D_TB10.7H (Res 1) |
Int16 |
10.7H GHz T_{b} (K) Level-2A 10.7 GHz data with a mean spatial resolution of 56 km were resampled to a 25 km EASE-Grid to create this data field. |
Multiply data values by 0.1 to obtain units in K. |
D_TB18.7V (Res 1) |
Int16 |
18.7V GHz T_{b} (K) Level-2A 18.7 GHz data with a mean spatial resolution of 56 km were resampled to a 25 km EASE-Grid to create this data field. |
Multiply data values by 0.1 to obtain units in K. |
D_TB18.7H (Res 1) |
Int16 |
18.7H GHz T_{b (K)} Level-2A 18.7 GHz data with a mean spatial resolution of 56 km were resampled to a 25 km EASE-Grid to create this data field. |
Multiply data values by 0.1 to obtain units in K. |
D_TB36.5V (Res 1) |
Int16 |
36.5V GHz T_{b} (K) Level-2A 36.5 GHz data with a mean spatial resolution of 56 km were resampled to a 25 km EASE-Grid to create this data field. |
Multiply data values by 0.1 to obtain units in K. |
D_TB36.5H (Res 1) |
Int16 |
36.5H GHz T_{b} (K) Level-2A 36.5 GHz data with a mean spatial resolution of 56 km were resampled to a 25 km EASE-Grid to create this data field. |
Multiply data values by 0.1 to obtain units in K. |
D_TB36.5V (Res 4) |
Int16 |
36.5V GHz T_{b} (K) Level-2A 36.5 GHz data with a mean spatial resolution of 12 km were resampled to a 25 km EASE-Grid to create this data field. |
Multiply data values by 0.1 to obtain units in K. |
D_TB36.5H (Res 4) |
Int16 |
36.5H GHz T_{b} (K) Level-2A 36.5 GHz data with a mean spatial resolution of 12 km were resampled to a 25 km EASE-Grid to create this data field. |
Multiply data values by 0.1 to obtain units in K. |
D_TB89.0V (Res 4) |
Int16 |
89.0V GHz T_{b} (K) Level-2A 89.0 GHz data with a mean spatial resolution of 12 km were resampled to a 25 km EASE-Grid to create this data field. |
Multiply data values by 0.1 to obtain units in K. |
D_TB89.0H (Res 4) |
Int16 |
89.0H GHz T_{b} (K) Level-2A 89.0 GHz data with a mean spatial resolution of 12 km were resampled to a 25 km EASE-Grid to create this data field. |
Multiply data values by 0.1 to obtain units in K. |
D_Soil_Moisture |
Int16 |
Soil moisture at 10.7 GHz resolution (g cm^{-3)}. Range: 0 to 500. | Multiply data values by 0.001 to obtain soil moisture in g cm^{-3}. |
D_Veg_Water_Content |
Int16 |
The Vegetation Water Content field (kg m^{-2}) incorporates the effects of vegetation and roughness together. See the Derivation Techniques and Algorithms section in the AMSR-E/Aqua L2B Surface Soil Moisture, Ancillary Parameters, & QC EASE-Grids Guide Document. When interpreted as vegetation water content, it is the total water content in the vertical column of vegetation averaged over the retrieval footprint. | Multiply data values by 0.01 to obtain vegetation water content in kg m^{-2}. |
D_Land_Surface_Temp |
Int16 |
Land Surface Temperature (K) is not calculated because of Radio Frequency Interference (RFI) contamination in the 6.9 GHz channels. The field contains only fill values. | Multiply data values by 0.1 to obtain units in K. |
D_Inversion_QC_Flag |
Int16 |
Inversion quality control flag. Also includes surface type flags encoded in individual bits of this integer. For a description of the contents, see the Processing Steps section of the AMSR-E/Aqua Daily L3 Surface Soil Moisture, Interpretive Parameters, & QC EASE-Grids Guide Document. For grid points such as open or inland water, a fill value of 9999 is assigned. |
n/a |