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 Ver2

  • ・Improved algorithm of cloud identification

Stored Physical quantity

Ver1,2 Description
SICE Snow and Ice Coverd area

QA_flag information

  • None

Attribute information

Ver1,2 Attribute Remarks
Attribute of Image_data
Attribute of Image_data Number_of_lines 1200 250m: 4800
1km: 1200
Number_of_pixels 1200
Grid_interval 0.00833333 250m: 0.00208333
1km: 0.00833333
Grid_interval_unit deg
Image_projection L1B reference grid
Lower_left_latitude 70 Variable
Lower_left_longitude -58.4761
Lower_right_latitude 70
Lower_right_longitude -29.238
Upper_left_latitude 80
Upper_left_longitude -115.175
Upper_right_latitude 80
Upper_right_longitude -57.5877
SICE
SICE
16-bit unsigned integer		 Data_description Detail：SICE_Bit information
Error_DN 65535
Mask_for_statistics 0 Detail：SICE_Bit information(SICE_L3_mask)

How to use

  • ・SICE_Bit information
Bit Ver1,2 Description SICE_L3_mask*
0 C1 algorithm process 0
1 cloudy/clear flag 0
2 0
3 0
4 day/night flag 0
5 land/water flag 0
6 snow/ice flag 0
7 0
8 0
9 cloud shadow flag 0
10 sun-glint 0
11 radiance saturation 0
12 missing channel (VN,SW,IR) 0
13 0
14 0
15 error 0
  • * Bits masked by statistical processing are indicated by 1.