Medium Resolution Spectral Imager-III (MERSI-III)

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 
Number of Channels 25
Spatial Resolution 250m / 1000m

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

Calibration and Validation

MERSI-III calibration and validation

FY-3F MERSI-III SRF (ZIP)

MERSI-III

MERSI-III