Hyperspectral Infrared Atmospheric Sounder-II (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 | 3041 |
| Spatial Resolution | 14km |
Characteristics
| Band | Wavelength | Spectral range | Spectral resolution | Spectral accuracy |
|---|---|---|---|---|
| LW IR | 8.80~15.38 µm | 650~1136 cm-1 | 0.625 cm-1 | 7ppm required, 5ppm expected |
| MW IR | 5.71~8.26 µm | 1210~1750 cm-1 | 1.25 cm-1 | |
| SW IR | 3.92~4.64 µm | 2155~2550 cm-1 | 2.5 cm-1 | |
| Thermal IR |
Data and Products
| Satellite | Instrument | Datasets |
|---|---|---|
| FY-3E | HIRAS-II | L1 data |
Calibration and Validation
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FY-3F HIRAS-II
FY-3E HIRAS-II