Atmos Composition
TRMM Monthly 1 x 1 Degree SSM/I Rain Data 3A46
Data Access for
3A46:
http://disc.sci.gsfc.nasa.gov/data/datapool/TRMM_DP/01_Data_Products/02_Gridded/05_Monthly_Ssmi_Rain_3A_46/
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| Temporal Coverage | Start Date: 1998-01-01; Stop Date: - |
|---|---|
| Geographic Coverage | Latitude: 90°S - 90°N; Longitude:180°W - 180°E |
| Temporal Resolution | Monthly |
| Horizontal Resolution | 1° x 1° |
| Average File Size | ~300 KB (uncompressed) |
| File Type | HDF |
Data Format Structure
The following table summarizes the contents and structure of the TRMM Monthly 1 x 1 Degree SSM/I Rain Data (3A46) product. Further information can be found in Volume 4 of the "File Specifications for TSDIS Products - Level 2 and Level 3" .
| Data Format Structure for 3A46, TRMM Monthly 1 x 1 Degree SSM/I Rain Data | |||||||
|---|---|---|---|---|---|---|---|
| Name | Type | Record Size (byte) |
Dim Size (# of Records) |
Scaled by |
Range | Unit | Description |
| ECS Core Metadata | Char Attribute | 10,000 | - | - | - | - | ECS Core Metadata |
| PS Metadata | Char Attribute | 10,000 | - | - | - | - | Product Specific Metadata |
| GridStructure | Char Attribute | 5,000 | - | - | - | - | GridStructure gives the specification of the geometry of the grids. |
| SSMIdata | Float SDS | 4 | 180*360*2 | - | 0.0 ~ 100.0
(1st variable) 0.0 ~ 1,000,000,000.0 (2nd variable) |
mm hr-1 | SSM/I data averaged over 1° x 1° grid boxes and one month. The first variable is Precipitation Rate (mm/hr); the range is 0 to 100. The second variable is Number of Observations; the range is 0 to one billion. |
| Note: The grids in
SSM/I data are different than the standard TSDIS grids in the following
ways:
1) the longitude dimension precedes the latitude dimension; 2) the longitude index begins at the Greenwich meridian; 3) the latitude index begins at the northernmost row; 4) the latitude range is -90 to +90; 5) Missing data are given the value of -9999. |
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