Envisat validation results obtained with the LPMA and IASI-balloon FTIR
Résumé
A summary of the data acquired for Envisat validation during several flights of the Limb Profile Monitor of the Atmosphere (LPMA) instrument is presented. This balloon-borne Fourier transform spectrometer was operated in various optical configurations depending of which Envisat instrument was the prime target for validation: LPMA (LWIR) for MIPAS, LPMA (SWIR) for SCIAMACHY and MIPAS, LPMA (NIR) for SCIAMACHY and GOMOS. Profiles of O3, CH4, N2O, and HNO3 have been compared with Envisat data. Balloon profiles of other species like NO2, NO and CO have been retrieved but the corresponding Envisat products were nor yet available. In cooperation with IUP/Bremen, we are in the process of calibrating the LPMA (SWIR) spectra to produce absolute irradiance solar spectra in bands 7 (2.0 μm) and band 8 (2.3μm) of SCIAMACHY.