Geo High-speed Imager (GHI)
Description
Geo High-speed Imager (GHI) is onboard FY-4B, which was launched on June 3rd, positioned at 123.5°E on June 10th, 2021 and positioned at 133°E on April 11th, 2022.
| Satellite | FY-4B |
|---|---|
| No. channels | 7 |
| Spatial resolution | 0.25~2km |
| Temporal resolution | 1 min (2000km × 2000km) |
Characteristics
| Band | Range (μm) | Resolution (km) | Accuracy |
|---|---|---|---|
| 1 | All-color | 0.25 | ＞300@100% |
| 2 | 0.445～0.495 | 0.5 | ＞200@100% |
| 3 | 0.52～0.57 | 0.5 | ＞300@100% |
| 4 | 0.62～0.67 | 0.5 | ＞300@100% |
| 5 | 1.371～1.386 | 0.5 | ＞150@100% |
| 6 | 1.58～1.64 | 0.5 | ＞300@100% |
| 7 | 10.3～12.5 | 2 | 0.2K@300K |
FY-4B GHI scan range in China regions (133°E)
FY-4B GHI scan range in Full Disk (133°E)
FY-4B GHI scan range in emergency response (133°E)
Data and Products
| Satellite | Instrument | Datasets |
|---|---|---|
| FY-4B | GHI | L1 data |
Calibration and Validation
GHI