IASI spectral range
The spectrometer covers the spectral range from the edge of the thermal infrared at 3.62 µm (2760 cm-¹), where solar backscatter begins to contribute, up to 15.5 µm (645 cm-¹) covering the peak of the thermal infrared and particularly the intense CO2 band around 666 cm-¹. Most of the information required by users is contained in the primary spectral regions inside this IASI spectral range.
| Spectral range | Primary application |
|---|---|
| 650 to 770 cm-1 | Temperature sounding (CO2 band) |
| 770 to 980 cm-1 | Surface and cloud properties |
| 1000 to 1070 cm-1 | O3 sounding |
| 1080 to 1150 cm-1 | Surface and cloud properties |
| 1210 to 1650 cm-1 | Water vapour temperature sounding: N2O, CH4 and SO2 |
| 2100 to 2150 cm-1 | CO column amount |
| 2150 to 2250 cm-1 | Temperature sounding: N2O column amount |
| 2350 to 2420 cm-1 | Temperature sounding |
| 2420 to 2700 cm-1 | Surface and cloud properties |
Last update: 29 June 2006
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