Introduction

Update contents of Ver.2

• ・Improved the algorithm and the period of input data (RSRF)
• ・Modified QA flag

Update contents of Ver.3

• ・Accuracy improvement using satellite vegetation LIDAR "GEDI" (LUT updated)

Sample image

Dataset name

QA_flag information

Ver.1 Ver.2,3 Ver.1(Sample Image) Ver.2,3(Sample Image)

Bit	Data name	Description	AGB_L3_mask*	VRI_L3_mask*
0	no data	1: any of used bands are error	1	1
1	land/water	0: water >50%, 1: land > 50%	0	0
2	mixed with land/water	1: land and water > 1%	0	0
3	cloud	1: cloud > 20%	1	1
4	probably cloud	1: probably cloud > 20%	0	0
5	snow or ice	1: snow or ice > 20%	0	0
6	bad input	1: bad input	0	0
7	backup algorithm	1: AGB was retrieved by LUT method	0	0
8	quality level by DEM	quality level by DEM	0	0
9	quality level by DEM	quality level by DEM	0	0
10	Sensor zenith angle is large	1: sensor zenith angle for VN is large	1	1
11	low quality	1: low quality	1	1
12	spare	reserved	0	0
13	spare	reserved	0	0
14	spare	reserved	0	0
15	spare	reserved	0	0

 * Bits masked by statistical processing are indicated by 1.

 Please refer to here to the detail information for QA flag.

Bit	Data name	Description	AGB_L3_mask*	VRI_L3_mask*
0	no data	1: any of 4x4 of 250m pixels are no data	1	1
1	land/water	1: all of 4x4 of 250m pixels are land	0	0
2	mixed with land/water	1: any of 4x4 of 250m pixels are water and coast	0	0
3	cloud	1: any of 4x4 of 250m pixels are cloud or probably cloud	1	1
4	probably cloud/high tau-a	1: any of 4x4 of 250m pixels are cloud/probably cloud/high tau	0	0
5	snow or ice	1: any of 4x4 of 250m pixels are snow or ice	0	0
6	bad input	1: any of 4x4 of 250m pixels are no_data	0	0
7	backup algorithm	1: backup algorithm was used	0	0
8	quality level by DEM	quality level by DEM	0	0
9	quality level by DEM	quality level by DEM	0	0
10	bad geometry	1: sensor zenith angle for VN is large	1	1
11	low quality	1: low quality	1	1
12	alternative AGB	1: altenative AGB was assigend	0	0
13	LC might be changed	1: LC might be changed	0	0
14	pol cloud	1: pol cloud	0	0
15	spare	reserved	0	0

 * Bits masked by statistical processing are indicated by 1.

 Please refer to here to the detail information for QA flag.

QA_flag(Ver.1)

QA_flag(Ver.2,3)