The impact of a thermodynamic sea-ice module in the COSMO numerical weather prediction model on simulations for the Laptev Sea, Siberian Arctic
Previous versions of the Consortium for Small-scale Modelling (COSMO) numerical weather prediction model have used a constant sea-ice surface temperature, but observations show a high degree of variability on sub-daily timescales. To account for this, we have implemented a thermodynamic sea-ice modu...
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Norwegian Polar Institute
2011
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Online Access: | https://doi.org/10.3402/polar.v30i0.6334 https://doaj.org/article/4fb3986d93a24a10925c1da415440692 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:4fb3986d93a24a10925c1da415440692 2023-05-15T15:10:26+02:00 The impact of a thermodynamic sea-ice module in the COSMO numerical weather prediction model on simulations for the Laptev Sea, Siberian Arctic David Schröder Günther Heinemann Sascha Willmes 2011-05-01 https://doi.org/10.3402/polar.v30i0.6334 https://doaj.org/article/4fb3986d93a24a10925c1da415440692 en eng Norwegian Polar Institute doi:10.3402/polar.v30i0.6334 0800-0395 1751-8369 https://doaj.org/article/4fb3986d93a24a10925c1da415440692 undefined Polar Research, Vol 30, Iss 0, Pp 1-18 (2011) Laptev Sea polynya mesoscale modelling geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2011 fttriple https://doi.org/10.3402/polar.v30i0.6334 2023-01-22T19:37:32Z Previous versions of the Consortium for Small-scale Modelling (COSMO) numerical weather prediction model have used a constant sea-ice surface temperature, but observations show a high degree of variability on sub-daily timescales. To account for this, we have implemented a thermodynamic sea-ice module in COSMO and performed simulations at a resolution of 15 km and 5 km for the Laptev Sea area in April 2008. Temporal and spatial variability of surface and 2-m air temperature are verified by four automatic weather stations deployed along the edge of the western New Siberian polynya during the Transdrift XIII-2 expedition and by surface temperature charts derived from Moderate Resolution Imaging Spectroradiometer (MODIS) satellite data. A remarkable agreement between the new model results and these observations demonstrates that the implemented sea-ice module can be applied for short-range simulations. Prescribing the polynya areas daily, our COSMO simulations provide a high-resolution and high-quality atmospheric data set for the Laptev Sea for the period 14–30 April 2008. Based on this data set, we derive a mean total sea-ice production rate of 0.53 km3/day for all Laptev Sea polynyas under the assumption that the polynyas are ice-free and a rate of 0.30 km3/day if a 10-cm-thin ice layer is assumed. Our results indicate that ice production in Laptev Sea polynyas has been overestimated in previous studies. Article in Journal/Newspaper Arctic laptev Laptev Sea Polar Research Sea ice Unknown Arctic Laptev Sea Polar Research 30 1 6334 |
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Open Polar |
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language |
English |
topic |
Laptev Sea polynya mesoscale modelling geo envir |
spellingShingle |
Laptev Sea polynya mesoscale modelling geo envir David Schröder Günther Heinemann Sascha Willmes The impact of a thermodynamic sea-ice module in the COSMO numerical weather prediction model on simulations for the Laptev Sea, Siberian Arctic |
topic_facet |
Laptev Sea polynya mesoscale modelling geo envir |
description |
Previous versions of the Consortium for Small-scale Modelling (COSMO) numerical weather prediction model have used a constant sea-ice surface temperature, but observations show a high degree of variability on sub-daily timescales. To account for this, we have implemented a thermodynamic sea-ice module in COSMO and performed simulations at a resolution of 15 km and 5 km for the Laptev Sea area in April 2008. Temporal and spatial variability of surface and 2-m air temperature are verified by four automatic weather stations deployed along the edge of the western New Siberian polynya during the Transdrift XIII-2 expedition and by surface temperature charts derived from Moderate Resolution Imaging Spectroradiometer (MODIS) satellite data. A remarkable agreement between the new model results and these observations demonstrates that the implemented sea-ice module can be applied for short-range simulations. Prescribing the polynya areas daily, our COSMO simulations provide a high-resolution and high-quality atmospheric data set for the Laptev Sea for the period 14–30 April 2008. Based on this data set, we derive a mean total sea-ice production rate of 0.53 km3/day for all Laptev Sea polynyas under the assumption that the polynyas are ice-free and a rate of 0.30 km3/day if a 10-cm-thin ice layer is assumed. Our results indicate that ice production in Laptev Sea polynyas has been overestimated in previous studies. |
format |
Article in Journal/Newspaper |
author |
David Schröder Günther Heinemann Sascha Willmes |
author_facet |
David Schröder Günther Heinemann Sascha Willmes |
author_sort |
David Schröder |
title |
The impact of a thermodynamic sea-ice module in the COSMO numerical weather prediction model on simulations for the Laptev Sea, Siberian Arctic |
title_short |
The impact of a thermodynamic sea-ice module in the COSMO numerical weather prediction model on simulations for the Laptev Sea, Siberian Arctic |
title_full |
The impact of a thermodynamic sea-ice module in the COSMO numerical weather prediction model on simulations for the Laptev Sea, Siberian Arctic |
title_fullStr |
The impact of a thermodynamic sea-ice module in the COSMO numerical weather prediction model on simulations for the Laptev Sea, Siberian Arctic |
title_full_unstemmed |
The impact of a thermodynamic sea-ice module in the COSMO numerical weather prediction model on simulations for the Laptev Sea, Siberian Arctic |
title_sort |
impact of a thermodynamic sea-ice module in the cosmo numerical weather prediction model on simulations for the laptev sea, siberian arctic |
publisher |
Norwegian Polar Institute |
publishDate |
2011 |
url |
https://doi.org/10.3402/polar.v30i0.6334 https://doaj.org/article/4fb3986d93a24a10925c1da415440692 |
geographic |
Arctic Laptev Sea |
geographic_facet |
Arctic Laptev Sea |
genre |
Arctic laptev Laptev Sea Polar Research Sea ice |
genre_facet |
Arctic laptev Laptev Sea Polar Research Sea ice |
op_source |
Polar Research, Vol 30, Iss 0, Pp 1-18 (2011) |
op_relation |
doi:10.3402/polar.v30i0.6334 0800-0395 1751-8369 https://doaj.org/article/4fb3986d93a24a10925c1da415440692 |
op_rights |
undefined |
op_doi |
https://doi.org/10.3402/polar.v30i0.6334 |
container_title |
Polar Research |
container_volume |
30 |
container_issue |
1 |
container_start_page |
6334 |
_version_ |
1766341459476217856 |