Effect of sea ice morphology during Arctic summer on atmospheric drag coefficients used in climate models
Realistic modeling of polar sea ice dynamics and atmospheric processes over sea ice needs a detailed representation of the near‐surface atmospheric fluxes of momentum. In this study, parametrizations of neutral drag coefficients mostly used in different general circulation models are compared with a...
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| Veröffentlicht in: | Geophysical research letters 2013-01, Vol.40 (2), p.446-451 |
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| creator | Lüpkes, C. Gryanik, V. M. Rösel, A. Birnbaum, G. Kaleschke, L. |
| description | Realistic modeling of polar sea ice dynamics and atmospheric processes over sea ice needs a detailed representation of the near‐surface atmospheric fluxes of momentum. In this study, parametrizations of neutral drag coefficients mostly used in different general circulation models are compared with a recently developed parametrization including the impact of sea ice morphology. The new parametrization, using the sea ice and melt pond fraction as governing parameters, accounts for the effect of form drag caused by edges at leads, melt ponds, and floes. Based on remote sensing data of ice and melt pond fraction, it is shown that during Arctic summer the traditionally used drag coefficients differ from the new ones by a factor 0.5–1.2. The geographic distribution of drag coefficients obtained from both parametrizations is very different. Differences are due to a nonlinear and non‐monotonic dependence of drag coefficients on sea ice concentration in the new parametrization.
Key points
Surface drag distribution in polar regions is not correctly reproduced by GCMs
Parametrizations of drag coefficients over sea ice should account for melt ponds
Remote sensing data of sea ice can be used to determine drag coefficients |
| doi_str_mv | 10.1002/grl.50081 |
| format | Article |
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Key points
Surface drag distribution in polar regions is not correctly reproduced by GCMs
Parametrizations of drag coefficients over sea ice should account for melt ponds
Remote sensing data of sea ice can be used to determine drag coefficients</description><identifier>ISSN: 0094-8276</identifier><identifier>EISSN: 1944-8007</identifier><identifier>DOI: 10.1002/grl.50081</identifier><language>eng</language><publisher>Washington: Blackwell Publishing Ltd</publisher><subject>air ice interaction ; Arctic sea ice ; Atmospheric drag ; Atmospheric models ; Atmospheric processes ; Climate models ; Drag ; Drag coefficient ; Drag coefficients ; Form drag ; General circulation models ; Geographical distribution ; Global warming ; Ice ; melt ponds ; Meteorology ; Momentum ; Morphology ; Parameterization ; Ponds ; Remote sensing ; Sea ice ; Sea ice concentrations ; Sea ice dynamics ; Sea ice effects ; Summer</subject><ispartof>Geophysical research letters, 2013-01, Vol.40 (2), p.446-451</ispartof><rights>2013. American Geophysical Union. All Rights Reserved.</rights><rights>2013. American Geophysical Union. All rights reserved.</rights><rights>Copyright Blackwell Publishing Ltd. Jan 2013</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3981-bfe8d0b535c820c6507a0b0b60610d971cbd2d0066cd87ae8918f2595926795c3</citedby><cites>FETCH-LOGICAL-c3981-bfe8d0b535c820c6507a0b0b60610d971cbd2d0066cd87ae8918f2595926795c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fgrl.50081$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fgrl.50081$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,1433,11514,27924,27925,45574,45575,46409,46468,46833,46892</link.rule.ids></links><search><creatorcontrib>Lüpkes, C.</creatorcontrib><creatorcontrib>Gryanik, V. M.</creatorcontrib><creatorcontrib>Rösel, A.</creatorcontrib><creatorcontrib>Birnbaum, G.</creatorcontrib><creatorcontrib>Kaleschke, L.</creatorcontrib><title>Effect of sea ice morphology during Arctic summer on atmospheric drag coefficients used in climate models</title><title>Geophysical research letters</title><addtitle>Geophys. Res. Lett</addtitle><description>Realistic modeling of polar sea ice dynamics and atmospheric processes over sea ice needs a detailed representation of the near‐surface atmospheric fluxes of momentum. In this study, parametrizations of neutral drag coefficients mostly used in different general circulation models are compared with a recently developed parametrization including the impact of sea ice morphology. The new parametrization, using the sea ice and melt pond fraction as governing parameters, accounts for the effect of form drag caused by edges at leads, melt ponds, and floes. Based on remote sensing data of ice and melt pond fraction, it is shown that during Arctic summer the traditionally used drag coefficients differ from the new ones by a factor 0.5–1.2. The geographic distribution of drag coefficients obtained from both parametrizations is very different. Differences are due to a nonlinear and non‐monotonic dependence of drag coefficients on sea ice concentration in the new parametrization.
Key points
Surface drag distribution in polar regions is not correctly reproduced by GCMs
Parametrizations of drag coefficients over sea ice should account for melt ponds
Remote sensing data of sea ice can be used to determine drag coefficients</description><subject>air ice interaction</subject><subject>Arctic sea ice</subject><subject>Atmospheric drag</subject><subject>Atmospheric models</subject><subject>Atmospheric processes</subject><subject>Climate models</subject><subject>Drag</subject><subject>Drag coefficient</subject><subject>Drag coefficients</subject><subject>Form drag</subject><subject>General circulation models</subject><subject>Geographical distribution</subject><subject>Global warming</subject><subject>Ice</subject><subject>melt ponds</subject><subject>Meteorology</subject><subject>Momentum</subject><subject>Morphology</subject><subject>Parameterization</subject><subject>Ponds</subject><subject>Remote sensing</subject><subject>Sea ice</subject><subject>Sea ice concentrations</subject><subject>Sea ice dynamics</subject><subject>Sea ice effects</subject><subject>Summer</subject><issn>0094-8276</issn><issn>1944-8007</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNp9kE1PGzEQhq2qSE2hh_4DS5w4LBnbsdc-RlGSIkWA-FCO1q4_gmF3ndq7avPvuzSFWznNaPS8M5oHoe8ELgkAne5Sc8kBJPmEJkTNZoUEKD-jCYAae1qKL-hrzs8AwICRCQpL753pcfQ4uwoH43Ab0_4pNnF3wHZIodvheTJ9MDgPbesSjh2u-jbm_ZNL49SmaodNdN4HE1zXZzxkZ3HosGlCW_WvC61r8hk68VWT3bd_9RQ9rpYPix_F5mZ9tZhvCsOUJEXtnbRQc8aNpGAEh7KCGmoBgoBVJTG1pRZACGNlWTmpiPSUK66oKBU37BSdH_fuU_w5uNzr5zikbjypqYTRgGKSfEQRMaMwo0rKkbo4UibFnJPzep_Gn9JBE9CvvvXoW__1PbLTI_srNO7wf1Cv7zZvieKYCLl3v98TVXrRomQl19vrtea3bLW53wpN2B_Zto--</recordid><startdate>20130128</startdate><enddate>20130128</enddate><creator>Lüpkes, C.</creator><creator>Gryanik, V. M.</creator><creator>Rösel, A.</creator><creator>Birnbaum, G.</creator><creator>Kaleschke, L.</creator><general>Blackwell Publishing Ltd</general><general>John Wiley & Sons, Inc</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>7TN</scope><scope>8FD</scope><scope>F1W</scope><scope>FR3</scope><scope>H8D</scope><scope>H96</scope><scope>KL.</scope><scope>KR7</scope><scope>L.G</scope><scope>L7M</scope></search><sort><creationdate>20130128</creationdate><title>Effect of sea ice morphology during Arctic summer on atmospheric drag coefficients used in climate models</title><author>Lüpkes, C. ; Gryanik, V. M. ; Rösel, A. ; Birnbaum, G. ; Kaleschke, L.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3981-bfe8d0b535c820c6507a0b0b60610d971cbd2d0066cd87ae8918f2595926795c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>air ice interaction</topic><topic>Arctic sea ice</topic><topic>Atmospheric drag</topic><topic>Atmospheric models</topic><topic>Atmospheric processes</topic><topic>Climate models</topic><topic>Drag</topic><topic>Drag coefficient</topic><topic>Drag coefficients</topic><topic>Form drag</topic><topic>General circulation models</topic><topic>Geographical distribution</topic><topic>Global warming</topic><topic>Ice</topic><topic>melt ponds</topic><topic>Meteorology</topic><topic>Momentum</topic><topic>Morphology</topic><topic>Parameterization</topic><topic>Ponds</topic><topic>Remote sensing</topic><topic>Sea ice</topic><topic>Sea ice concentrations</topic><topic>Sea ice dynamics</topic><topic>Sea ice effects</topic><topic>Summer</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lüpkes, C.</creatorcontrib><creatorcontrib>Gryanik, V. M.</creatorcontrib><creatorcontrib>Rösel, A.</creatorcontrib><creatorcontrib>Birnbaum, G.</creatorcontrib><creatorcontrib>Kaleschke, L.</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Technology Research Database</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Geophysical research letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lüpkes, C.</au><au>Gryanik, V. M.</au><au>Rösel, A.</au><au>Birnbaum, G.</au><au>Kaleschke, L.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of sea ice morphology during Arctic summer on atmospheric drag coefficients used in climate models</atitle><jtitle>Geophysical research letters</jtitle><addtitle>Geophys. Res. Lett</addtitle><date>2013-01-28</date><risdate>2013</risdate><volume>40</volume><issue>2</issue><spage>446</spage><epage>451</epage><pages>446-451</pages><issn>0094-8276</issn><eissn>1944-8007</eissn><abstract>Realistic modeling of polar sea ice dynamics and atmospheric processes over sea ice needs a detailed representation of the near‐surface atmospheric fluxes of momentum. In this study, parametrizations of neutral drag coefficients mostly used in different general circulation models are compared with a recently developed parametrization including the impact of sea ice morphology. The new parametrization, using the sea ice and melt pond fraction as governing parameters, accounts for the effect of form drag caused by edges at leads, melt ponds, and floes. Based on remote sensing data of ice and melt pond fraction, it is shown that during Arctic summer the traditionally used drag coefficients differ from the new ones by a factor 0.5–1.2. The geographic distribution of drag coefficients obtained from both parametrizations is very different. Differences are due to a nonlinear and non‐monotonic dependence of drag coefficients on sea ice concentration in the new parametrization.
Key points
Surface drag distribution in polar regions is not correctly reproduced by GCMs
Parametrizations of drag coefficients over sea ice should account for melt ponds
Remote sensing data of sea ice can be used to determine drag coefficients</abstract><cop>Washington</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1002/grl.50081</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | air ice interaction Arctic sea ice Atmospheric drag Atmospheric models Atmospheric processes Climate models Drag Drag coefficient Drag coefficients Form drag General circulation models Geographical distribution Global warming Ice melt ponds Meteorology Momentum Morphology Parameterization Ponds Remote sensing Sea ice Sea ice concentrations Sea ice dynamics Sea ice effects Summer |
| title | Effect of sea ice morphology during Arctic summer on atmospheric drag coefficients used in climate models |
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