PPT Slide

IASI Instrument

• Mission Objectives:

• • Temperature profile: 1K/1km (in the lower troposphere)
  • Relative Humidity: 10%/1 km (in the lower troposphere)
  • Trace gases: O3 low resolution profile, CH4, CO columns

• Main Characteristics:

• • High spectral resolution (0.25 cm-1 unapodized)
  • Spectral range: 3.4 to 15.5 µ
  • Radiometric resolution < 0.2 K (NeDT), accuracy < 0.5 K
  • Horizontal resolution/sampling: 12km/25km
  • Wide swath (2200km) scanning synchronised with AMSU-A
  • Built-in imager for co-registration with AVHRR and Back-up

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