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| Titel |
Tomographic retrieval of cloud liquid water fields from a single scanning microwave radiometer aboard a moving platform – Part 1: Field trial results from the Wakasa Bay experiment |
| VerfasserIn |
D. Huang, Albin J. Gasiewski, W. Wiscombe |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 10, no. 14 ; Nr. 10, no. 14 (2010-07-22), S.6685-6697 |
| Datensatznummer |
250008646
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| Publikation (Nr.) |
 copernicus.org/acp-10-6685-2010.pdf |
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| Zusammenfassung |
| Tomographic methods offer great potential for retrieving three-dimensional
spatial distributions of cloud liquid water from radiometric observations by
passive microwave sensors. Fixed tomographic systems require multiple
radiometers, while mobile systems can use just a single radiometer. Part 1
(this paper) examines the results from a limited cloud tomography trial with
a single-radiometer airborne system carried out as part of the 2003 AMSR-E
validation campaign over Wakasa Bay of the Sea of Japan. During this trial,
the Polarimetric Scanning Radiometer (PSR) and Microwave Imaging Radiometer
(MIR) aboard the NASA P-3 research aircraft provided a useful dataset for
testing the cloud tomography method over a system of low-level clouds. We do
tomographic retrievals with a constrained inversion algorithm using three
configurations: PSR, MIR, and combined PSR and MIR data. The liquid water
paths from the PSR retrieval are consistent with those from the MIR
retrieval. The retrieved cloud field based on the combined data appears to be
physically plausible and consistent with the cloud image obtained by a cloud
radar. We find that some vertically-uniform clouds appear at high altitudes
in the retrieved field where the radar shows clear sky. This is likely due to
the sub-optimal data collection strategy. This sets the stage for Part 2 of
this study that aims to define optimal data collection strategies using
observation system simulation experiments. |
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