M. Gisi

TL;DR: In this article, a commercial low-resolution Fourier Transform Spectrometer (FTS) has been modified and used for determining the total column XCO2 of the atmosphere by analysing direct solar radiation.

TL;DR: In this article, the first aircraft calibration campaign of five European TCCON sites and a mobile Fourier Transform Spectrometer (FTS) instrument was introduced, and the results of the campaign show that the FTS mea- surements are consistently biased 1.1 %± 0.2 % low with re- spect to WMO standards.

TL;DR: In this paper, a new system to very precisely couple radiation of a moving source into a Fourier Transform Infrared (FTIR) Spectrometer is presented, which reaches tracking accuracies of about 10 arc s for ground-based solar absorption FTIR spectrometer, which is significantly better than current solar trackers.

TL;DR: In this paper, the authors present a new method allowing for an extensive and straightforward characterisation of the complex nature of such isotopologue remote sensing datasets, and they demonstrate that the MUSICA humidity profiles are representative for most of the troposphere with a vertical resolution ranging from about 2 km (in the lower troposphere) to 8 km(in the upper troposphere), with an estimated precision of better than 10%.

TL;DR: In this article, the authors present lower/middle tropospheric column-averaged CH4 mole fraction time series measured by nine globally distributed ground-based FTIR (Fourier transform infrared) remote sensing experiments of the Network for the Detection of Atmospheric Composition Change (NDACC).