The effect of misleading surface temperature estimations on the sensible heat fluxes at a high Arctic site – the Arctic Turbulence Experiment 2006 on Svalbard (ARCTEX-2006)
The observed rapid climate warming in the Arctic requires improvements in permafrost and carbon cycle monitoring, accomplished by setting up long-term observation sites with high-quality in-situ measurements of turbulent heat, water and carbon fluxes as well as soil physical parameters in Arctic lan...
Main Authors: | , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2010
|
Subjects: | |
Online Access: | https://doaj.org/article/23ce715d808040268aad920134a41a54 |
id |
ftdoajarticles:oai:doaj.org/article:23ce715d808040268aad920134a41a54 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:23ce715d808040268aad920134a41a54 2023-05-15T14:41:26+02:00 The effect of misleading surface temperature estimations on the sensible heat fluxes at a high Arctic site – the Arctic Turbulence Experiment 2006 on Svalbard (ARCTEX-2006) J. Lüers J. Bareiss 2010-01-01T00:00:00Z https://doaj.org/article/23ce715d808040268aad920134a41a54 EN eng Copernicus Publications http://www.atmos-chem-phys.net/10/157/2010/acp-10-157-2010.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 1680-7316 1680-7324 https://doaj.org/article/23ce715d808040268aad920134a41a54 Atmospheric Chemistry and Physics, Vol 10, Iss 1, Pp 157-168 (2010) Physics QC1-999 Chemistry QD1-999 article 2010 ftdoajarticles 2022-12-31T08:53:06Z The observed rapid climate warming in the Arctic requires improvements in permafrost and carbon cycle monitoring, accomplished by setting up long-term observation sites with high-quality in-situ measurements of turbulent heat, water and carbon fluxes as well as soil physical parameters in Arctic landscapes. But accurate quantification and well adapted parameterizations of turbulent fluxes in polar environments presents fundamental problems in soil-snow-ice-vegetation-atmosphere interaction studies. One of these problems is the accurate estimation of the surface or aerodynamic temperature T (0) required to force most of the bulk aerodynamic formulae currently used. Results from the Arctic-Turbulence-Experiment (ARCTEX-2006) performed on Svalbard during the winter/spring transition 2006 helped to better understand the physical exchange and transport processes of energy. The existence of an atypical temperature profile close to the surface in the Arctic spring at Svalbard could be proven to be one of the major issues hindering estimation of the appropriate surface temperature. Thus, it is essential to adjust the set-up of measurement systems carefully when applying flux-gradient methods that are commonly used to force atmosphere-ocean/land-ice models. The results of a comparison of different sensible heat-flux parameterizations with direct measurements indicate that the use of a hydrodynamic three-layer temperature-profile model achieves the best fit and reproduces the temporal variability of the surface temperature better than other approaches. Article in Journal/Newspaper Arctic Ice permafrost Svalbard Directory of Open Access Journals: DOAJ Articles Arctic Svalbard |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Physics QC1-999 Chemistry QD1-999 |
spellingShingle |
Physics QC1-999 Chemistry QD1-999 J. Lüers J. Bareiss The effect of misleading surface temperature estimations on the sensible heat fluxes at a high Arctic site – the Arctic Turbulence Experiment 2006 on Svalbard (ARCTEX-2006) |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
The observed rapid climate warming in the Arctic requires improvements in permafrost and carbon cycle monitoring, accomplished by setting up long-term observation sites with high-quality in-situ measurements of turbulent heat, water and carbon fluxes as well as soil physical parameters in Arctic landscapes. But accurate quantification and well adapted parameterizations of turbulent fluxes in polar environments presents fundamental problems in soil-snow-ice-vegetation-atmosphere interaction studies. One of these problems is the accurate estimation of the surface or aerodynamic temperature T (0) required to force most of the bulk aerodynamic formulae currently used. Results from the Arctic-Turbulence-Experiment (ARCTEX-2006) performed on Svalbard during the winter/spring transition 2006 helped to better understand the physical exchange and transport processes of energy. The existence of an atypical temperature profile close to the surface in the Arctic spring at Svalbard could be proven to be one of the major issues hindering estimation of the appropriate surface temperature. Thus, it is essential to adjust the set-up of measurement systems carefully when applying flux-gradient methods that are commonly used to force atmosphere-ocean/land-ice models. The results of a comparison of different sensible heat-flux parameterizations with direct measurements indicate that the use of a hydrodynamic three-layer temperature-profile model achieves the best fit and reproduces the temporal variability of the surface temperature better than other approaches. |
format |
Article in Journal/Newspaper |
author |
J. Lüers J. Bareiss |
author_facet |
J. Lüers J. Bareiss |
author_sort |
J. Lüers |
title |
The effect of misleading surface temperature estimations on the sensible heat fluxes at a high Arctic site – the Arctic Turbulence Experiment 2006 on Svalbard (ARCTEX-2006) |
title_short |
The effect of misleading surface temperature estimations on the sensible heat fluxes at a high Arctic site – the Arctic Turbulence Experiment 2006 on Svalbard (ARCTEX-2006) |
title_full |
The effect of misleading surface temperature estimations on the sensible heat fluxes at a high Arctic site – the Arctic Turbulence Experiment 2006 on Svalbard (ARCTEX-2006) |
title_fullStr |
The effect of misleading surface temperature estimations on the sensible heat fluxes at a high Arctic site – the Arctic Turbulence Experiment 2006 on Svalbard (ARCTEX-2006) |
title_full_unstemmed |
The effect of misleading surface temperature estimations on the sensible heat fluxes at a high Arctic site – the Arctic Turbulence Experiment 2006 on Svalbard (ARCTEX-2006) |
title_sort |
effect of misleading surface temperature estimations on the sensible heat fluxes at a high arctic site – the arctic turbulence experiment 2006 on svalbard (arctex-2006) |
publisher |
Copernicus Publications |
publishDate |
2010 |
url |
https://doaj.org/article/23ce715d808040268aad920134a41a54 |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic Ice permafrost Svalbard |
genre_facet |
Arctic Ice permafrost Svalbard |
op_source |
Atmospheric Chemistry and Physics, Vol 10, Iss 1, Pp 157-168 (2010) |
op_relation |
http://www.atmos-chem-phys.net/10/157/2010/acp-10-157-2010.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 1680-7316 1680-7324 https://doaj.org/article/23ce715d808040268aad920134a41a54 |
_version_ |
1766313200663396352 |