a simulated observation database to assess the impact of the iasi-ng hyperspectral infrared sounder
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2018
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Abstract
The highly accurate measurements of the hyperspectral Infrared Atmospheric
Sounding Interferometer (IASI) are used in numerical weather prediction
(NWP), atmospheric chemistry and climate monitoring. As the second generation
of the European Polar System (EPS-SG) is being developed, a new generation of
IASI instruments has been designed to fly on board the MetOp-SG
constellation: IASI New Generation (IASI-NG). In order to prepare the arrival
of this new instrument, and to evaluate its impact on NWP and atmospheric
chemistry applications, a set of IASI and IASI-NG simulated data was built
and made available to the public to set a common framework for future impact
studies. This paper describes the information available in this database and
the procedure followed to run the IASI and IASI-NG simulations. These
simulated data were evaluated by comparing IASI-NG to IASI observations. The
result is also presented here. Additionally, preliminary impact studies of
the benefit of IASI-NG compared to IASI on the retrieval of temperature and
humidity in a NWP framework are also shown in the present work. With
a channel dataset located in the same wave numbers for both instruments, we
showed an improvement of the temperature retrievals throughout the
atmosphere, with a maximum in the troposphere with IASI-NG and a lower benefit for the
tropospheric humidity.
| Reference Key |
andrey-andrs2018atmospherica simulated
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|---|---|
| Authors | ;J. Andrey-Andrés;N. Fourrié;V. Guidard;R. Armante;P. Brunel;C. Crevoisier;B. Tournier;B. Tournier |
| Journal | bioorganic & medicinal chemistry |
| Year | 2018 |
| DOI |
10.5194/amt-11-803-2018
|
| URL | |
| Keywords |
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