The NSIDC Web site and data services are currently having intermittent problems and may be unavailable. We are working to restore these services as soon as possible and apologize for any inconvenience this may cause. Please contact NSIDC User Services for assistance.

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 |