Explicitly determined sea ice emissivity and emission temperature over the Arctic for surface‐sensitive microwave channels
Data assimilation of satellite microwave measurements is one of the importantkeys to improving weather forecasting over the Arctic region. However, the useofsurface-sensitivemicrowave-soundingchannelmeasurementsfordataassim-ilation or retrieval has been limited, especially during winter, due to the...
Published in: | Quarterly Journal of the Royal Meteorological Society |
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Royal Meteorological Society
2023
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Online Access: | https://epic.awi.de/id/eprint/57848/ https://epic.awi.de/id/eprint/57848/1/Quart%20J%20Royal%20Meteoro%20Soc%20-%202023%20-%20Kang%20-%20Explicitly%20determined%20sea%20ice%20emissivity%20and%20emission%20temperature%20over%20the%20Arctic.pdf https://hdl.handle.net/10013/epic.aa851a03-fcfe-49d6-88d8-cc387bb37704 |
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ftawi:oai:epic.awi.de:57848 2023-07-30T04:00:06+02:00 Explicitly determined sea ice emissivity and emission temperature over the Arctic for surface‐sensitive microwave channels Kang, Eui‐Jong Sohn, Byung‐Ju Tonboe, Rasmus Tage Noh, Young‐Chan Kwon, In‐Hyuk Kim, Sang‐Woo Maturilli, Marion Kim, Hyun‐Cheol Liu, Chao 2023-06-07 application/pdf https://epic.awi.de/id/eprint/57848/ https://epic.awi.de/id/eprint/57848/1/Quart%20J%20Royal%20Meteoro%20Soc%20-%202023%20-%20Kang%20-%20Explicitly%20determined%20sea%20ice%20emissivity%20and%20emission%20temperature%20over%20the%20Arctic.pdf https://hdl.handle.net/10013/epic.aa851a03-fcfe-49d6-88d8-cc387bb37704 unknown Royal Meteorological Society https://epic.awi.de/id/eprint/57848/1/Quart%20J%20Royal%20Meteoro%20Soc%20-%202023%20-%20Kang%20-%20Explicitly%20determined%20sea%20ice%20emissivity%20and%20emission%20temperature%20over%20the%20Arctic.pdf Kang, E. , Sohn, B. , Tonboe, R. T. , Noh, Y. , Kwon, I. , Kim, S. , Maturilli, M. orcid:0000-0001-6818-7383 , Kim, H. and Liu, C. (2023) Explicitly determined sea ice emissivity and emission temperature over the Arctic for surface‐sensitive microwave channels , Quarterly Journal of the Royal Meteorological Society, pp. 1-20 . doi:10.1002/qj.4492 <https://doi.org/10.1002/qj.4492> , hdl:10013/epic.aa851a03-fcfe-49d6-88d8-cc387bb37704 EPIC3Quarterly Journal of the Royal Meteorological Society, Royal Meteorological Society, pp. 1-20, ISSN: 0035-9009 Article isiRev 2023 ftawi https://doi.org/10.1002/qj.4492 2023-07-09T23:19:44Z Data assimilation of satellite microwave measurements is one of the importantkeys to improving weather forecasting over the Arctic region. However, the useofsurface-sensitivemicrowave-soundingchannelmeasurementsfordataassim-ilation or retrieval has been limited, especially during winter, due to the poorlyconstrained sea ice emissivity. In this study, aiming at more use of those channelmeasurements in the data assimilation, we propose an explicit method for speci-fying the surface radiative boundary conditions (namely emissivity and emittinglayer temperature of snow and ice). These were explicitly determined with aradiativetransfermodelforsnowandiceandwithsnow/icephysicalparameters(i.e. snow/ice depths and vertical distributions of temperature, density, salinity,and grain size) simulated from the thermodynamically driven snow/ice growthmodel. We conducted 1D-Var experiments in order to examine whether thisapproach can help to use the surface-sensitive microwave temperature channelmeasurements over the Arctic sea ice region for data assimilation. Results showthat (1) the surface-sensitive microwave channels can be used in the 1D-Varretrieval, and (2) the specification of the radiative boundary condition at thesurface using the snow/sea ice emission model can significantly improve theatmospheric temperature retrieval, especially in the lower troposphere (500hPato surface). The successful retrieval suggests that useful information can beextracted from surface-sensitive microwave-sounding channel radiances oversea ice surfaces through the explicit determination of snow/ice emissivity andemitting layer temperature. Article in Journal/Newspaper Arctic Arctic Sea ice Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Quarterly Journal of the Royal Meteorological Society |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Data assimilation of satellite microwave measurements is one of the importantkeys to improving weather forecasting over the Arctic region. However, the useofsurface-sensitivemicrowave-soundingchannelmeasurementsfordataassim-ilation or retrieval has been limited, especially during winter, due to the poorlyconstrained sea ice emissivity. In this study, aiming at more use of those channelmeasurements in the data assimilation, we propose an explicit method for speci-fying the surface radiative boundary conditions (namely emissivity and emittinglayer temperature of snow and ice). These were explicitly determined with aradiativetransfermodelforsnowandiceandwithsnow/icephysicalparameters(i.e. snow/ice depths and vertical distributions of temperature, density, salinity,and grain size) simulated from the thermodynamically driven snow/ice growthmodel. We conducted 1D-Var experiments in order to examine whether thisapproach can help to use the surface-sensitive microwave temperature channelmeasurements over the Arctic sea ice region for data assimilation. Results showthat (1) the surface-sensitive microwave channels can be used in the 1D-Varretrieval, and (2) the specification of the radiative boundary condition at thesurface using the snow/sea ice emission model can significantly improve theatmospheric temperature retrieval, especially in the lower troposphere (500hPato surface). The successful retrieval suggests that useful information can beextracted from surface-sensitive microwave-sounding channel radiances oversea ice surfaces through the explicit determination of snow/ice emissivity andemitting layer temperature. |
format |
Article in Journal/Newspaper |
author |
Kang, Eui‐Jong Sohn, Byung‐Ju Tonboe, Rasmus Tage Noh, Young‐Chan Kwon, In‐Hyuk Kim, Sang‐Woo Maturilli, Marion Kim, Hyun‐Cheol Liu, Chao |
spellingShingle |
Kang, Eui‐Jong Sohn, Byung‐Ju Tonboe, Rasmus Tage Noh, Young‐Chan Kwon, In‐Hyuk Kim, Sang‐Woo Maturilli, Marion Kim, Hyun‐Cheol Liu, Chao Explicitly determined sea ice emissivity and emission temperature over the Arctic for surface‐sensitive microwave channels |
author_facet |
Kang, Eui‐Jong Sohn, Byung‐Ju Tonboe, Rasmus Tage Noh, Young‐Chan Kwon, In‐Hyuk Kim, Sang‐Woo Maturilli, Marion Kim, Hyun‐Cheol Liu, Chao |
author_sort |
Kang, Eui‐Jong |
title |
Explicitly determined sea ice emissivity and emission temperature over the Arctic for surface‐sensitive microwave channels |
title_short |
Explicitly determined sea ice emissivity and emission temperature over the Arctic for surface‐sensitive microwave channels |
title_full |
Explicitly determined sea ice emissivity and emission temperature over the Arctic for surface‐sensitive microwave channels |
title_fullStr |
Explicitly determined sea ice emissivity and emission temperature over the Arctic for surface‐sensitive microwave channels |
title_full_unstemmed |
Explicitly determined sea ice emissivity and emission temperature over the Arctic for surface‐sensitive microwave channels |
title_sort |
explicitly determined sea ice emissivity and emission temperature over the arctic for surface‐sensitive microwave channels |
publisher |
Royal Meteorological Society |
publishDate |
2023 |
url |
https://epic.awi.de/id/eprint/57848/ https://epic.awi.de/id/eprint/57848/1/Quart%20J%20Royal%20Meteoro%20Soc%20-%202023%20-%20Kang%20-%20Explicitly%20determined%20sea%20ice%20emissivity%20and%20emission%20temperature%20over%20the%20Arctic.pdf https://hdl.handle.net/10013/epic.aa851a03-fcfe-49d6-88d8-cc387bb37704 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Sea ice |
genre_facet |
Arctic Arctic Sea ice |
op_source |
EPIC3Quarterly Journal of the Royal Meteorological Society, Royal Meteorological Society, pp. 1-20, ISSN: 0035-9009 |
op_relation |
https://epic.awi.de/id/eprint/57848/1/Quart%20J%20Royal%20Meteoro%20Soc%20-%202023%20-%20Kang%20-%20Explicitly%20determined%20sea%20ice%20emissivity%20and%20emission%20temperature%20over%20the%20Arctic.pdf Kang, E. , Sohn, B. , Tonboe, R. T. , Noh, Y. , Kwon, I. , Kim, S. , Maturilli, M. orcid:0000-0001-6818-7383 , Kim, H. and Liu, C. (2023) Explicitly determined sea ice emissivity and emission temperature over the Arctic for surface‐sensitive microwave channels , Quarterly Journal of the Royal Meteorological Society, pp. 1-20 . doi:10.1002/qj.4492 <https://doi.org/10.1002/qj.4492> , hdl:10013/epic.aa851a03-fcfe-49d6-88d8-cc387bb37704 |
op_doi |
https://doi.org/10.1002/qj.4492 |
container_title |
Quarterly Journal of the Royal Meteorological Society |
_version_ |
1772810708862369792 |