Parameterization of the downward long-wave radiation at the Earth’s surface in polar regions
Various parameterization schemes for the downward long-wave radiation at the Earth's surface which have been frequently applied in sea ice and snow cover models are tested with the aid of one year's measurements at the German stations "Koldewey" and "Neumayer" in the Ar...
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Borntraeger
1994
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ftdoajarticles:oai:doaj.org/article:476c2ece6f604fb8bf98e622d3f27f2f 2024-09-15T17:45:24+00:00 Parameterization of the downward long-wave radiation at the Earth’s surface in polar regions Gert König-Langlo Ernst Augstein 1994-12-01T00:00:00Z https://doi.org/10.1127/metz/3/1994/343 https://doaj.org/article/476c2ece6f604fb8bf98e622d3f27f2f EN eng Borntraeger http://dx.doi.org/10.1127/metz/3/1994/343 https://doaj.org/toc/0941-2948 0941-2948 doi:10.1127/metz/3/1994/343 https://doaj.org/article/476c2ece6f604fb8bf98e622d3f27f2f Meteorologische Zeitschrift, Vol 3, Iss 6, Pp 343-347 (1994) stefan-boltzmann radiation law atmospheric emissivity ice crystals arctic antarctic stefan boltzmannsche strahlungsformel atmosphärische emissivität eiskristalle arktis antarktis koldewey neumayer Meteorology. Climatology QC851-999 article 1994 ftdoajarticles https://doi.org/10.1127/metz/3/1994/343 2024-08-05T17:50:04Z Various parameterization schemes for the downward long-wave radiation at the Earth's surface which have been frequently applied in sea ice and snow cover models are tested with the aid of one year's measurements at the German stations "Koldewey" and "Neumayer" in the Arctic and Antarctic, respectively. All of these concepts are based on the Stefan-Boltzmann radiation law with an empirically derived effective atmospheric emissivity εA. Our data confirm the distinct dependency of the latter on cloudiness. But no other influences e.g. due to falling ice crystals (diamond dust) could be detected as significant. And the low level atmospheric water vapour pressure needs not be considered explicitly in the formulae. Thus, we propose a rather simple scheme for εA which is competable to the more sophisticated ones at least for polar regions. Our parameterization reproduces the observations with root mean square (RMS) deviations of less than 16 W/m2. Article in Journal/Newspaper Antarc* Antarctic Antarktis* Arktis Arktis* Sea ice Directory of Open Access Journals: DOAJ Articles Meteorologische Zeitschrift 3 6 343 347 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
stefan-boltzmann radiation law atmospheric emissivity ice crystals arctic antarctic stefan boltzmannsche strahlungsformel atmosphärische emissivität eiskristalle arktis antarktis koldewey neumayer Meteorology. Climatology QC851-999 |
spellingShingle |
stefan-boltzmann radiation law atmospheric emissivity ice crystals arctic antarctic stefan boltzmannsche strahlungsformel atmosphärische emissivität eiskristalle arktis antarktis koldewey neumayer Meteorology. Climatology QC851-999 Gert König-Langlo Ernst Augstein Parameterization of the downward long-wave radiation at the Earth’s surface in polar regions |
topic_facet |
stefan-boltzmann radiation law atmospheric emissivity ice crystals arctic antarctic stefan boltzmannsche strahlungsformel atmosphärische emissivität eiskristalle arktis antarktis koldewey neumayer Meteorology. Climatology QC851-999 |
description |
Various parameterization schemes for the downward long-wave radiation at the Earth's surface which have been frequently applied in sea ice and snow cover models are tested with the aid of one year's measurements at the German stations "Koldewey" and "Neumayer" in the Arctic and Antarctic, respectively. All of these concepts are based on the Stefan-Boltzmann radiation law with an empirically derived effective atmospheric emissivity εA. Our data confirm the distinct dependency of the latter on cloudiness. But no other influences e.g. due to falling ice crystals (diamond dust) could be detected as significant. And the low level atmospheric water vapour pressure needs not be considered explicitly in the formulae. Thus, we propose a rather simple scheme for εA which is competable to the more sophisticated ones at least for polar regions. Our parameterization reproduces the observations with root mean square (RMS) deviations of less than 16 W/m2. |
format |
Article in Journal/Newspaper |
author |
Gert König-Langlo Ernst Augstein |
author_facet |
Gert König-Langlo Ernst Augstein |
author_sort |
Gert König-Langlo |
title |
Parameterization of the downward long-wave radiation at the Earth’s surface in polar regions |
title_short |
Parameterization of the downward long-wave radiation at the Earth’s surface in polar regions |
title_full |
Parameterization of the downward long-wave radiation at the Earth’s surface in polar regions |
title_fullStr |
Parameterization of the downward long-wave radiation at the Earth’s surface in polar regions |
title_full_unstemmed |
Parameterization of the downward long-wave radiation at the Earth’s surface in polar regions |
title_sort |
parameterization of the downward long-wave radiation at the earth’s surface in polar regions |
publisher |
Borntraeger |
publishDate |
1994 |
url |
https://doi.org/10.1127/metz/3/1994/343 https://doaj.org/article/476c2ece6f604fb8bf98e622d3f27f2f |
genre |
Antarc* Antarctic Antarktis* Arktis Arktis* Sea ice |
genre_facet |
Antarc* Antarctic Antarktis* Arktis Arktis* Sea ice |
op_source |
Meteorologische Zeitschrift, Vol 3, Iss 6, Pp 343-347 (1994) |
op_relation |
http://dx.doi.org/10.1127/metz/3/1994/343 https://doaj.org/toc/0941-2948 0941-2948 doi:10.1127/metz/3/1994/343 https://doaj.org/article/476c2ece6f604fb8bf98e622d3f27f2f |
op_doi |
https://doi.org/10.1127/metz/3/1994/343 |
container_title |
Meteorologische Zeitschrift |
container_volume |
3 |
container_issue |
6 |
container_start_page |
343 |
op_container_end_page |
347 |
_version_ |
1810493204892483584 |