Snow Depth
(Standard Product, Research Product)
Product Overview
Product Overview
Product Name | Snow Depth DOI |
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Product Type | Research Product | Standard Product | |
Processing Level | L2 (Swath data *2) and L3 (Grid data: EQR, Polar stereo NH) | L2 (Swath data *2) and L3 (Grid data: EQR, Polar stereo NH) | |
Product ID | SND | SND | |
Spec. *1 | Area | Global over land | Global over land |
Spatial Resolution | approx. 30 km | approx. 30 km | |
Accuracy Requirement | 20 cm *3 | 20 cm *3 | |
Range | 0 〜100 cm | 0 〜100 cm | |
Latest Version | AMSR2: ver. 1.0
2022-09-20 release
AMSR-E: ver. 1.0 2022-09-20 release |
AMSR2: ver. 2.1
2015-03-26 release
AMSR-E: ver. 8 2019-07-05 release |
|
Product Period | AMSR2: July 2012 〜 AMSR-E: July 2002 〜 October 2011 |
AMSR2: July 2012 〜 AMSR-E: July 2002 〜 October 2011 |
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Data Download | AMSR Research Product Distribution Service | Globe Portal System (G-Portal)
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Data Format | HDF5 AMSR2 Higher Level Format
2.7MB |
HDF5 AMSR2 Higher Level Format
2.7MB |
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Stored Data | (1) Snow Depth [cm] (2) Snow Water Equivalent [cm] |
(1) Snow Depth [cm] (2) Snow Water Equivalent [cm] |
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Data Quality Flag | L2 SND Quality Flag (SMSA ver. 3.0)
85KB |
L2 SND Quality Flag
263KB |
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Algorithm Version | SMSA v3.01 (R Kelly et al., 2019) | v2.0
3.9MB PDF page 86 |
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Validation Result | Algorithm overview and validation result (SMSA 3.0)
454KB |
AMSR2 Product Update
12MB PDF page 43 |
- The specifications are defined in the AMSR2 Mission Requirement. The required accuracy is the standard accuracy of standard product defined in the mission requirement.
- Swath data is a format in which data for each footprint is stored in a two-dimensional array (observation points in scanning direction x number of scanning lines) in order of observation time.
- Except ice sheets and dense forest areas. Accuracy is expressed in snow depth and defined as mean absolute error of instantaneous observations.
Reference
Reference
Revision History
Revision History
AMSR2 Research Product SND ver. 1.0 with algorithm SMSA v3.01
AMSR-E Research Product SND ver. 1.0 with algorithm SMSA v3.01
AMSR-E Research Product SND ver. 1.0 with algorithm SMSA v3.0