Description

MERSI-2 combines the function of MERSI-I and VIRR.

Characteristics

Satellite	FY-3D
Number of Channels	25
Spatial Resolution	250m (8192 detectors) / 1000m (2048 detectors)

Characteristics

No.	Center wavelength	Bandwidth	SNR or NEΔT	Spatial Resolution
1	412 nm	20 nm	300 @ 44.9 W m-2 sr-1 μm-1	1000 m
2	443 nm	20 nm	300 @ 41.9 W m-2 sr-1 μm-1	1000 m
3	470 nm	50 nm	100 @ 35.3 W m-2 sr-1 μm-1	250 m
4	490 nm	20 nm	300 @ 32.1 W m-2 sr-1 μm-1	1000 m
5	550 nm	50 nm	100 @ 29.0 W m-2 sr-1 μm-1	250 m
6	555 nm	20 nm	500 @ 21 W m-2 sr-1 μm-1	1000 m
7	650 nm	50 nm	100 @ 22 W m-2 sr-1 μm-1	250 m
8	670 nm	20 nm	500 @ 10 W m-2 sr-1 μm-1	1000 m
9	709 nm	20 nm	500 @ 6.9 W m-2 sr-1 μm-1	1000 m
10	746 nm	20 nm	500 @ 9.6 W m-2 sr-1 μm-1	1000 m
11	865 nm	20 nm	500 @ 6.4 W m-2 sr-1 μm-1	1000 m
12	865 nm	50 nm	100 @ 25 W m-2 sr-1 μm-1	250 m
13	905 nm	20 nm	200 @ 10.0 W m-2 sr-1 μm-1	1000 m
14	936 nm	20 nm	100 @ 3.6 W m-2 sr-1 μm-1	1000 m
15	940 nm	50 nm	200 @ 15.0 W m-2 sr-1 μm-1	1000 m
16	1240 / 1030 nm	20 nm	100 @ 5.4 W m-2 sr-1 μm-1	1000 m
17	1380 nm	20 / 30 nm	60/100 @ 6 W m-2 sr-1 μm-1	1000 m
18	1640 nm	50 nm	200 @ 7.3 W m-2 sr-1 μm-1	1000 m
19	2130 nm	50 nm	100 @ 1.2 W m-2 sr-1 μm-1	1000 m
20	3.80 μm	0.18 μm	0.25 K @ 270 K	1000 m
21	4.05 μm	0.155 μm	0.25 K @ 300/380 K	1000 m
22	7.20 μm	0.50 μm	0.30 K @ 270 K	1000 m
23	8.55 μm	0.30 μm	0.25 K @ 270 K	1000 m
24	10.8 μm	1.0 μm	0.4 K @ 300 K	250 m
25	12.0 μm	1.0 μm	0.4 K @ 300 K	250 m

Data and Products

Satellite	Instrument	Datasets
FY-3D	MERSI-II	L1 data,  L2L3 product

Calibration and Validation

MERSI-II calibration and validation

MERSI-II SRF (ZIP)

MERSI-II SRF (PDF)