A microwave satellite water vapour column retrieval for polar winter conditions
A new microwave satellite water vapour retrieval for the polar winter atmosphere is presented. The retrieval builds on the work of Miao et al. (2001) and Melsheimer and Heygster (2008), employing auxiliary information for atmospheric conditions and numerical optimization. It was tested using simulat...
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ftdoajarticles:oai:doaj.org/article:8d427f53749344af8aaa81d3c969dbbe 2023-05-15T15:13:16+02:00 A microwave satellite water vapour column retrieval for polar winter conditions C. Perro G. Lesins T. J. Duck M. Cadeddu 2016-05-01T00:00:00Z https://doi.org/10.5194/amt-9-2241-2016 https://doaj.org/article/8d427f53749344af8aaa81d3c969dbbe EN eng Copernicus Publications http://www.atmos-meas-tech.net/9/2241/2016/amt-9-2241-2016.pdf https://doaj.org/toc/1867-1381 https://doaj.org/toc/1867-8548 1867-1381 1867-8548 doi:10.5194/amt-9-2241-2016 https://doaj.org/article/8d427f53749344af8aaa81d3c969dbbe Atmospheric Measurement Techniques, Vol 9, Iss 5, Pp 2241-2252 (2016) Environmental engineering TA170-171 Earthwork. Foundations TA715-787 article 2016 ftdoajarticles https://doi.org/10.5194/amt-9-2241-2016 2022-12-31T15:59:29Z A new microwave satellite water vapour retrieval for the polar winter atmosphere is presented. The retrieval builds on the work of Miao et al. (2001) and Melsheimer and Heygster (2008), employing auxiliary information for atmospheric conditions and numerical optimization. It was tested using simulated and actual measurements from the Microwave Humidity Sounder (MHS) satellite instruments. Ground truth was provided by the G-band vapour radiometer (GVR) at Barrow, Alaska. For water vapour columns less than 6 kg m −2 , comparisons between the retrieval and GVR result in a root mean square (RMS) deviation of 0.39 kg m −2 and a systematic bias of 0.08 kg m −2 . These results are compared with RMS deviations and biases at Barrow for the retrieval of Melsheimer and Heygster (2008), the AIRS and MIRS satellite data products, and the ERA-Interim, NCEP, JRA-55, and ASR reanalyses. When applied to MHS measurements, the new retrieval produces a smaller RMS deviation and bias than for the earlier retrieval and satellite data products. The RMS deviations for the new retrieval were comparable to those for the ERA-Interim, JRA-55, and ASR reanalyses; however, the MHS retrievals have much finer horizontal resolution (15 km at nadir) and reveal more structure. The new retrieval can be used to obtain pan-Arctic maps of water vapour columns of unprecedented quality. It may also be applied to measurements from the Special Sensor Microwave/Temperature 2 (SSM/T2), Advanced Microwave Sounding Unit B (AMSU-B), Special Sensor Microwave Imager/Sounder (SSMIS), Advanced Technology Microwave Sounder (ATMS), and Chinese MicroWave Humidity Sounder (MWHS) instruments. Article in Journal/Newspaper Arctic Barrow Alaska Directory of Open Access Journals: DOAJ Articles Arctic Atmospheric Measurement Techniques 9 5 2241 2252 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental engineering TA170-171 Earthwork. Foundations TA715-787 |
spellingShingle |
Environmental engineering TA170-171 Earthwork. Foundations TA715-787 C. Perro G. Lesins T. J. Duck M. Cadeddu A microwave satellite water vapour column retrieval for polar winter conditions |
topic_facet |
Environmental engineering TA170-171 Earthwork. Foundations TA715-787 |
description |
A new microwave satellite water vapour retrieval for the polar winter atmosphere is presented. The retrieval builds on the work of Miao et al. (2001) and Melsheimer and Heygster (2008), employing auxiliary information for atmospheric conditions and numerical optimization. It was tested using simulated and actual measurements from the Microwave Humidity Sounder (MHS) satellite instruments. Ground truth was provided by the G-band vapour radiometer (GVR) at Barrow, Alaska. For water vapour columns less than 6 kg m −2 , comparisons between the retrieval and GVR result in a root mean square (RMS) deviation of 0.39 kg m −2 and a systematic bias of 0.08 kg m −2 . These results are compared with RMS deviations and biases at Barrow for the retrieval of Melsheimer and Heygster (2008), the AIRS and MIRS satellite data products, and the ERA-Interim, NCEP, JRA-55, and ASR reanalyses. When applied to MHS measurements, the new retrieval produces a smaller RMS deviation and bias than for the earlier retrieval and satellite data products. The RMS deviations for the new retrieval were comparable to those for the ERA-Interim, JRA-55, and ASR reanalyses; however, the MHS retrievals have much finer horizontal resolution (15 km at nadir) and reveal more structure. The new retrieval can be used to obtain pan-Arctic maps of water vapour columns of unprecedented quality. It may also be applied to measurements from the Special Sensor Microwave/Temperature 2 (SSM/T2), Advanced Microwave Sounding Unit B (AMSU-B), Special Sensor Microwave Imager/Sounder (SSMIS), Advanced Technology Microwave Sounder (ATMS), and Chinese MicroWave Humidity Sounder (MWHS) instruments. |
format |
Article in Journal/Newspaper |
author |
C. Perro G. Lesins T. J. Duck M. Cadeddu |
author_facet |
C. Perro G. Lesins T. J. Duck M. Cadeddu |
author_sort |
C. Perro |
title |
A microwave satellite water vapour column retrieval for polar winter conditions |
title_short |
A microwave satellite water vapour column retrieval for polar winter conditions |
title_full |
A microwave satellite water vapour column retrieval for polar winter conditions |
title_fullStr |
A microwave satellite water vapour column retrieval for polar winter conditions |
title_full_unstemmed |
A microwave satellite water vapour column retrieval for polar winter conditions |
title_sort |
microwave satellite water vapour column retrieval for polar winter conditions |
publisher |
Copernicus Publications |
publishDate |
2016 |
url |
https://doi.org/10.5194/amt-9-2241-2016 https://doaj.org/article/8d427f53749344af8aaa81d3c969dbbe |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Barrow Alaska |
genre_facet |
Arctic Barrow Alaska |
op_source |
Atmospheric Measurement Techniques, Vol 9, Iss 5, Pp 2241-2252 (2016) |
op_relation |
http://www.atmos-meas-tech.net/9/2241/2016/amt-9-2241-2016.pdf https://doaj.org/toc/1867-1381 https://doaj.org/toc/1867-8548 1867-1381 1867-8548 doi:10.5194/amt-9-2241-2016 https://doaj.org/article/8d427f53749344af8aaa81d3c969dbbe |
op_doi |
https://doi.org/10.5194/amt-9-2241-2016 |
container_title |
Atmospheric Measurement Techniques |
container_volume |
9 |
container_issue |
5 |
container_start_page |
2241 |
op_container_end_page |
2252 |
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1766343848076771328 |