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Atmospheric Measurement Techniques An interactive open-access journal of the European Geosciences Union
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Volume 3, issue 6 | Copyright
Atmos. Meas. Tech., 3, 1785-1795, 2010
© Author(s) 2010. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 22 Dec 2010

Research article | 22 Dec 2010

Remote sensing of water vapour profiles in the framework of the Total Carbon Column Observing Network (TCCON)

M. Schneider1,2, E. Sepúlveda1,3, O. García1, F. Hase2, and T. Blumenstock2 M. Schneider et al.
  • 1Agencia Estatal de Meteorología (AEMET), CIAI, Santa Cruz de Tenerife, Spain
  • 2Karlsruhe Institute of Technology (KIT), IMK-ASF, Karlsruhe, Germany
  • 3University of La Laguna, Santa Cruz de Tenerife, Spain

Abstract. We show that the near infrared solar absorption spectra recorded in the framework of the Total Carbon Column Observing Network (TCCON) can be used to derive the vertical distribution of tropospheric water vapour. The resolution of the TCCON spectra of 0.02 cm−1 is sufficient for retrieving lower and middle/upper tropospheric water vapour concentrations with a vertical resolution of about 3 and 8 km, respectively. We document the good quality of the remotely-sensed profiles by comparisons with coincident in-situ Vaisala RS92 radiosonde measurements. Due to the high measurement frequency, the TCCON water vapour profile data offer novel opportunities for estimating the water vapour variability at different timescales and altitudes.

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