Ground-Based FTIR Remote Sensing

The IMK operates together with partners (see 'Sites') two ground-based Fourier-Transform Infrared Spectrometers (FTIR), one at Kiruna (North of Sweden) and the other one at Izaña, Tenerife Island. They are used to measure the concentration of trace gases in the atmosphere. Absorption spectra are recorded in the infrared spectral region using the sun (or the moon) as natural sources of radiation. Profiles of H2O, CH4, N2O, O3, NO, HNO3, HCl, and HF and column amounts of CFC-11, CFC-12, NO2, ClO, and ClONO2 are derived from these spectra. These measurements are made within the framework of the NDACC (Network for the Detection of Atmospheric Composition Change) and their aim is to record long-term trends of ozone related species and greenhouse gases, and to validate satellite data. Furthermore, the Izaña instrument is part of the TCCON (Total Column Carbon Observation Network) which aims to measure greenhouse gases with very high precision and to validate data from the planned OCO satellite.
 
 

Any questions? Please mail to Thomas Blumenstock                                        

Atmospheric Trace Constituents and Remote Sensing  Atmosphärische Spurenstoffe und Fernerkundung (ASF)