Description

MERSI-III is the key imaging onboard FY-3 series 03 satellite. Succeeding the channel settings of MERSI-I and MERSI-II, it has enhancements in calibration accuracy, observation sensitivity and operational lifetime.

Characteristics

Satellite	FY-3F , FY-3H
Number of Channels	25
Spatial Resolution	250m / 1000m
Swath Width	2800km

Characteristics

No.	Center wavelength(μm)	Bandwidth(nm)	Spatial resolution (m)	Minimum/expected sesitivity (SNR or NEΔT)	Minimum/expected accuracy (% or T)
1	0.470	50	250	150	5% / 3%
2	0.550	50	250	150	5% / 3%
3	0.650	50	250	128 / 150	5% / 3%
4	0.865	50	250	150	5% / 3%
5	1.38	30	1000	150	5% / 3%
6	1.64	50	1000	300	5% / 3%
7	2.13	50	1000	110 / 150	5% / 3%
8	0.412	20	1000	500 / 600	5% / 3%
9	0.443	20	1000	500 / 600	5% / 3%
10	0.490	20	1000	600 / 700	5% / 3%
11	0.555	20	1000	600 / 700	5% / 3%
12	0.670	20	1000	500 / 600	5% / 3%
13	0.709	20	1000	600 / 700	5% / 3%
14	0.746	20	1000	600 / 700	5% / 3%
15	0.865	20	1000	600 / 700	5% / 3%
16	0.905	20	1000	200	5% / 3%
17	0.936	20	1000	120 / 200	5% / 3%
18	0.940	50	1000	250 / 300	5% / 3%
19	1.03	20	1000	150	5% / 3%
20	3.80	180	1000	120 / 200	0.25K
21	4.05	155	1000	0.25K	0.4K / 0.2K
22	7.20	500	1000	0.30K	0.4K / 0.2K
23	8.55	300	1000	0.25K	0.4K / 0.2K
24	10.8	1000	250	0.30K	0.4K / 0.2K
25	12.0	1000	250	0.30K	0.4K / 0.2K

Data and Products

Satellite	Instrument	Datasets
FY-3F	MERSI-III	Search

Calibration and Validation

MERSI-III calibration and validation

FY-3F MERSI-III SRF (ZIP)