博文
AMSR-E数据与处理软件
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AMSR-E L3 级数据产品包含全球数据，是由 L1B 产品和 L2 级产品处理而来，L1B产品包含由天线亮温经变换系数计算得到新亮温数据，L2 级产品包含由 L1B 数据计算而得到的地球物理数据。通过对 L1B 和 L2 级数据的处理，通过一定的算法，进行重新计算平均值，得到每日或每月以 HDF-EOS 格式存储的 L3 级数据。目前的 L3 级产品可应用于海洋、土壤湿度以及冰雪等的参数反演和检测，这些数据产品通过美国国家冰雪中心网站下载使用.
AMSR-E数据产品介绍
HEG软件的安装与使用
上安装的Windows XP/VISTA/7
根据你的Windows机器上，您可能需要hegWINv2.11_FullCyg.zip，而不是对hegWINv2.11.zip。
首先，您可以尝试安装hegWINv2.11.zip。如果安装抱怨说，在Cygwin库
丢失，然后尝试hegWINv2.11_FullCyg.zip
0。将zip文件的目录中的hegWINv2.11.zip（或hegWINv2.11_FullCyg.zip）没有空格
在目录的路径名。 HEG将被安装在这个路径树。
1。安装Java（JDK1.6或JRE6或更新的Windows版本）。
2。解压hegWINv2.11.zip（或hegWINv2.11_FullCyg.zip如果这是您使用的是一个）到当前目录。
3。双击上的install.bat，然后按照指令在MS - DOS窗口出现。
4。将创建一个文件HEGTool.bat HEG HEG_Win bin目录中的安装。
5。转到bin目录，在HEGTool.bat文件，并右击HEGTool.bat。点击创建
快捷方式。你可以改变这在第6步的快捷方式的图标。
6。右键单击“上的HEGTool.bat快捷方式。单击属性，然后单击“更改图标。
现在点击浏览并选择文件“heg.ico”中的HEG_Win bin目录
7。要运行HEG上创建的快捷方式（S）或HEGTool.bat HEG_Win bin目录中双击。
根据你的Windows机器上，您可能需要hegWINv2.11_FullCyg.zip，而不是对hegWINv2.11.zip。
首先，您可以尝试安装hegWINv2.11.zip。如果安装抱怨说，在Cygwin库
丢失，然后尝试hegWINv2.11_FullCyg.zip
0。将zip文件的目录中的hegWINv2.11.zip（或hegWINv2.11_FullCyg.zip）没有空格
在目录的路径名。 HEG将被安装在这个路径树。
1。安装Java（JDK1.6或JRE6或更新的Windows版本）。
2。解压hegWINv2.11.zip（或hegWINv2.11_FullCyg.zip如果这是您使用的是一个）到当前目录。
3。双击上的install.bat，然后按照指令在MS - DOS窗口出现。
4。将创建一个文件HEGTool.bat HEG HEG_Win bin目录中的安装。
5。转到bin目录，在HEGTool.bat文件，并右击HEGTool.bat。点击创建
快捷方式。你可以改变这在第6步的快捷方式的图标。
6。右键单击“上的HEGTool.bat快捷方式。单击属性，然后单击“更改图标。
现在点击浏览并选择文件“heg.ico”中的HEG_Win bin目录
7。要运行HEG上创建的快捷方式（S）或HEGTool.bat HEG_Win bin目录中双击。
界面浏览
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 Tb (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 Tb (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 Tb (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 Tb (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 Tb (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 Tb (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 Tb (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 Tb (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 Tb (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 Tb (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 Tb (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 Tb (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 Stepssection of the AMSR-E/Aqua Daily L3 Surface Soil Moisture, Interpretive Parameters, & QC EASE-GridsGuide 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 Tb (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 Tb (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 Tb (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 Tb (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 Tb (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 Tb (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 Tb (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 Tb (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 Tb (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 Tb (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 Tb (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 Tb (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 Algorithmssection 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 Stepssection 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 |
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