Snow and Ice covered area（SICE）
Introduction
| SICE | Define | The extent of global snow and ice cover. |
| Unit | none | |
| ATBD |
Ver.1 (Mar. 2016) Ver.2 (May. 2020) |
Update contents of Ver.2
- ・Improved algorithm of cloud identification
Update contents of Ver.3
- ・Updated training dataset
Sample image
| File format | Ver.1 | Ver.2 | Ver.3 | hdf5 |
TBU |
SICEQ(250m) |
SICEQ(250m) |
|---|---|---|---|
| Image |
TBU |
SICEQ(250m) |
SICEQ(250m) |
Dataset name
| Ver.1,2,3 | Description |
|---|---|
| SICE | Snow and Ice Covered area |
QA_flag information
- None
Attribute information
How to use
- ・SICE_Bit information
| Bit | Ver.1,2,3 | Description | SICE_L3_mask* |
|---|---|---|---|
| 0 | C1 algorithm process | 0: not processed 1: processed |
0 |
| 1 | cloudy/clear flag | 000 = 0.00 (Cloudy) 001 = 0.00 - 0.17 010 = 0.17 - 0.33 011 = 0.33 - 0.50 100 = 0.50 - 0.67 101 = 0.67 - 0.83 110 = 0.83 - 1.00 111 = 1.00 (Clear) |
0 |
| 2 | 0 | ||
| 3 | 0 | ||
| 4 | day/night flag | 0: night 1: day |
0 |
| 5 | land/water flag | 0: water 1: land |
0 |
| 6 | snow/ice flag | 000 = snow over land / snow over sea ice 001 = no snow 010 = snow mixed with vegetation / bare sea ice 100 = melting snow over land 110 = melting snow with vegetation |
0 |
| 7 | 0 | ||
| 8 | 0 | ||
| 9 | cloud shadow flag | 0: no 1: yes |
0 |
| 10 | sun-glint | 0: no 1: yes |
0 |
| 11 | radiance saturation | 0: no 1: yes |
0 |
| 12 | missing channel (VNR) | 0: no 1: yes |
0 |
| 13 | missing channel (SWR) | 0: no 1: yes |
0 |
| 14 | missing channel (TIR) | 0: no 1: yes |
0 |
| 15 | error | 0 |
- * Bits masked by statistical processing are indicated by 1.