HIRAS-II

Description

HIRAS-II is the second generation of Hyperspectral Infrared Atmospheric Sounder (HIRAS).

Compared to HIRAS-I, HIRAS-II has firstly expanded to thermal infrared bands with more than 3,000 channels, has a finer spatial resolution from 16km to 14km, more than two times better sensitivity and significantly improved calibration accuracy.

Satellite	FY-3E, FY-3F
Number of Channels	3053
Spatial Resolution	14km

Characteristics

Band	Wavelength	Spectral range	Spectral resolution
LW IR	15.41~8.55 µm	648.75~1169.375 cm^-1	0.625 cm^-1
MW IR	8.56~5.20 µm	1167.5~1921.25 cm^-1	0.625 cm^-1
SW IR	5.21~3.92 µm	1919.375~2551.25 cm^-1	0.625 cm^-1