EGU22-4366, updated on 27 Mar 2022
https://doi.org/10.5194/egusphere-egu22-4366
EGU General Assembly 2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

10 years of characterization of the troposphere in the East Antarctic plateau region using a ground-based Fourier transform spectroradiometer

Giovanni Bianchini1, Marco De Pas2, Gianluca Di Natale1, Marco Prevedelli3, and Luca Palchetti1
Giovanni Bianchini et al.
  • 1Istituto Nazionale di Ottica INO-CNR, Sesto Fiorentino, Italy
  • 2Fritz Haber Institute of the Max Planck Society, Berlin, Germany
  • 3Università di Bologna, Italy

Since December 2011 the Radiation Explorer in the Far Infrared (REFIR) Fourier trasform spectroradiometer has been operating continuously from the Italian-French station Concordia, in the Dome C region, Antarctica,  providing a decade long dataset of spectrally resolved atmospheric downwelling radiances in the mid/far-infrared range.

In 2016 The Dome C Tropospheric Observatory (DOCTOR) project was established with the aim to recalibrate and reorganize the full time series of REFIR spectra in order to provide a homogeneous dataset, and to make it available to the scientific community.

A further objective of the DOCTOR project has been to integrate the REFIR spectroradiometer with a Lidar sensor to provide coincident, colocated measurements of tropospheric backscatter profiles.

The downwelling radiance spectra are processed with a retrieval code which is capable to provide vertical profiles of tropospheric temperature and water vapor. The availability of coincident backscatter profiles permits to improve the performance of the retrieval in cloudy sky conditions, providing the vertical structure of clouds which is not easily inferred from the spectra alone.

The resulting observation repository will provide a relevant source of information about tropospheric trends in a region, the East Antarctic plateau, which is sparsely covered by ground-based measurements.

How to cite: Bianchini, G., De Pas, M., Di Natale, G., Prevedelli, M., and Palchetti, L.: 10 years of characterization of the troposphere in the East Antarctic plateau region using a ground-based Fourier transform spectroradiometer, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-4366, https://doi.org/10.5194/egusphere-egu22-4366, 2022.

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