Uncertainties in Arctic Sea Ice Thickness Associated with Different Atmospheric Reanalysis Datasets Using the CICE5 Model
Reanalysis data are known to have relatively large uncertainties in the polar region than at lower latitudes. In this study, we used a single sea-ice model (Los Alamos’ CICE5) and three sets of reanalysis data to quantify the sensitivities of simulated Arctic sea ice area and volume to per...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-06-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/10/7/361 |
| _version_ | 1811221048052416512 |
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| author | Su-Bong Lee Baek-Min Kim Jinro Ukita Joong-Bae Ahn |
| author_facet | Su-Bong Lee Baek-Min Kim Jinro Ukita Joong-Bae Ahn |
| author_sort | Su-Bong Lee |
| collection | DOAJ |
| description | Reanalysis data are known to have relatively large uncertainties in the polar region than at lower latitudes. In this study, we used a single sea-ice model (Los Alamos’ CICE5) and three sets of reanalysis data to quantify the sensitivities of simulated Arctic sea ice area and volume to perturbed atmospheric forcings. The simulated sea ice area and thickness thus volume were clearly sensitive to the selection of atmospheric reanalysis data. Among the forcing variables, changes in radiative and sensible/latent heat fluxes caused significant amounts of sensitivities. Differences in sea-ice concentration and thickness were primarily caused by differences in downward shortwave and longwave radiations. 2-m air temperature also has a significant influence on year-to-year variability of the sea ice volume. Differences in precipitation affected the sea ice volume by causing changes in the insulation effect of snow-cover on sea ice. The diversity of sea ice extent and thickness responses due to uncertainties in atmospheric variables highlights the need to carefully evaluate reanalysis data over the Arctic region. |
| first_indexed | 2024-04-12T07:52:58Z |
| format | Article |
| id | doaj.art-1907bf8087c243328aeb91ce957dad53 |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-04-12T07:52:58Z |
| publishDate | 2019-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-1907bf8087c243328aeb91ce957dad532022-12-22T03:41:33ZengMDPI AGAtmosphere2073-44332019-06-0110736110.3390/atmos10070361atmos10070361Uncertainties in Arctic Sea Ice Thickness Associated with Different Atmospheric Reanalysis Datasets Using the CICE5 ModelSu-Bong Lee0Baek-Min Kim1Jinro Ukita2Joong-Bae Ahn3Korea Polar Research Institute, Incheon 21990, KoreaDivision of Environmental Atmospheric Science, Pukyong National University, Busan 48513, KoreaFaculty of Science, Niigata University, Niigata 8050, JapanDivision of Earth Environmental System, Pusan National University, Busan 46241, KoreaReanalysis data are known to have relatively large uncertainties in the polar region than at lower latitudes. In this study, we used a single sea-ice model (Los Alamos’ CICE5) and three sets of reanalysis data to quantify the sensitivities of simulated Arctic sea ice area and volume to perturbed atmospheric forcings. The simulated sea ice area and thickness thus volume were clearly sensitive to the selection of atmospheric reanalysis data. Among the forcing variables, changes in radiative and sensible/latent heat fluxes caused significant amounts of sensitivities. Differences in sea-ice concentration and thickness were primarily caused by differences in downward shortwave and longwave radiations. 2-m air temperature also has a significant influence on year-to-year variability of the sea ice volume. Differences in precipitation affected the sea ice volume by causing changes in the insulation effect of snow-cover on sea ice. The diversity of sea ice extent and thickness responses due to uncertainties in atmospheric variables highlights the need to carefully evaluate reanalysis data over the Arctic region.https://www.mdpi.com/2073-4433/10/7/361sea ice modelreanalysisuncertaintyArctic |
| spellingShingle | Su-Bong Lee Baek-Min Kim Jinro Ukita Joong-Bae Ahn Uncertainties in Arctic Sea Ice Thickness Associated with Different Atmospheric Reanalysis Datasets Using the CICE5 Model Atmosphere sea ice model reanalysis uncertainty Arctic |
| title | Uncertainties in Arctic Sea Ice Thickness Associated with Different Atmospheric Reanalysis Datasets Using the CICE5 Model |
| title_full | Uncertainties in Arctic Sea Ice Thickness Associated with Different Atmospheric Reanalysis Datasets Using the CICE5 Model |
| title_fullStr | Uncertainties in Arctic Sea Ice Thickness Associated with Different Atmospheric Reanalysis Datasets Using the CICE5 Model |
| title_full_unstemmed | Uncertainties in Arctic Sea Ice Thickness Associated with Different Atmospheric Reanalysis Datasets Using the CICE5 Model |
| title_short | Uncertainties in Arctic Sea Ice Thickness Associated with Different Atmospheric Reanalysis Datasets Using the CICE5 Model |
| title_sort | uncertainties in arctic sea ice thickness associated with different atmospheric reanalysis datasets using the cice5 model |
| topic | sea ice model reanalysis uncertainty Arctic |
| url | https://www.mdpi.com/2073-4433/10/7/361 |
| work_keys_str_mv | AT subonglee uncertaintiesinarcticseaicethicknessassociatedwithdifferentatmosphericreanalysisdatasetsusingthecice5model AT baekminkim uncertaintiesinarcticseaicethicknessassociatedwithdifferentatmosphericreanalysisdatasetsusingthecice5model AT jinroukita uncertaintiesinarcticseaicethicknessassociatedwithdifferentatmosphericreanalysisdatasetsusingthecice5model AT joongbaeahn uncertaintiesinarcticseaicethicknessassociatedwithdifferentatmosphericreanalysisdatasetsusingthecice5model |