Evaluation of MUSICA IASI tropospheric water vapour profiles using theoretical error assessments and comparisons to GRUAN Vaisala RS92 measurements

Borger, Christian; Schneider, Matthias; Ertl, Benjamin; Hase, Frank; García, Omaira E.; Sommer, Michael; Höpfner, Michael; Tjemkes, Stephen A.; Calbet, Xavier

doi:https://doi.org/10.5194/amt-11-4981-2018

Articles | Volume 11, issue 9

https://doi.org/10.5194/amt-11-4981-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Towards Unified Error Reporting (TUNER)

https://doi.org/10.5194/amt-11-4981-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 11, issue 9

Research article

|

04 Sep 2018

Research article |

| 04 Sep 2018

Evaluation of MUSICA IASI tropospheric water vapour profiles using theoretical error assessments and comparisons to GRUAN Vaisala RS92 measurements

Christian Borger, Matthias Schneider, Benjamin Ertl, Frank Hase, Omaira E. García, Michael Sommer, Michael Höpfner, Stephen A. Tjemkes, and Xavier Calbet

Data sets

RS92 GRUAN Data Product Version 2 (RS92-GDP.2) M. Sommer, R. Dirksen, and F. Immler https://doi.org/10.5676/GRUAN/RS92-GDP.2

MUSICA IASI data > Schneider http://www.imk-asf.kit.edu/english/musica.php

Short summary

In this paper MUSICA IASI tropospheric water vapour profile retrievals are evaluated by performing theoretical error assessments and comparisons to GRUAN radiosonde measurements. We show that the vertical water vapour distribution is well captured from 1 km above the ground up to the tropopause. Largest error sources are unrecognized clouds and uncertainties in atmospheric temperature, which can reach about 25 %.