A note on the roughness length for temperature over melting snow and ice
Abstract The characteristics of roughness length for temperature, zT , over melting snow and ice are examined on the base of data gathered during one summer season on the Greenland ice sheet. Despite fixed surface temperature and homogeneous surface conditions, zT is highly variable, taking on value...
Published in: | Quarterly Journal of the Royal Meteorological Society |
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crwiley:10.1002/qj.49712757114 2024-10-13T14:07:43+00:00 A note on the roughness length for temperature over melting snow and ice Calanca, Pierluigi 2001 http://dx.doi.org/10.1002/qj.49712757114 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fqj.49712757114 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/qj.49712757114 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Quarterly Journal of the Royal Meteorological Society volume 127, issue 571, page 255-260 ISSN 0035-9009 1477-870X journal-article 2001 crwiley https://doi.org/10.1002/qj.49712757114 2024-09-23T04:37:17Z Abstract The characteristics of roughness length for temperature, zT , over melting snow and ice are examined on the base of data gathered during one summer season on the Greenland ice sheet. Despite fixed surface temperature and homogeneous surface conditions, zT is highly variable, taking on values between 10 −5 and 1 m. Mean value and median are computed as 2 × 10 −2 m and 1 × 10 −3 m. It thus turns out that zT is about 10 to 100 times larger than the aerodynamic roughness length, z 0. This disparity cannot be explained in terms of the roughness Reynolds number. Rather, the data show that over melting snow and ice, and for slightly stable conditions, zT is uniquely determined by the temperature defect. Article in Journal/Newspaper Greenland Ice Sheet Wiley Online Library Greenland Quarterly Journal of the Royal Meteorological Society 127 571 255 260 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract The characteristics of roughness length for temperature, zT , over melting snow and ice are examined on the base of data gathered during one summer season on the Greenland ice sheet. Despite fixed surface temperature and homogeneous surface conditions, zT is highly variable, taking on values between 10 −5 and 1 m. Mean value and median are computed as 2 × 10 −2 m and 1 × 10 −3 m. It thus turns out that zT is about 10 to 100 times larger than the aerodynamic roughness length, z 0. This disparity cannot be explained in terms of the roughness Reynolds number. Rather, the data show that over melting snow and ice, and for slightly stable conditions, zT is uniquely determined by the temperature defect. |
format |
Article in Journal/Newspaper |
author |
Calanca, Pierluigi |
spellingShingle |
Calanca, Pierluigi A note on the roughness length for temperature over melting snow and ice |
author_facet |
Calanca, Pierluigi |
author_sort |
Calanca, Pierluigi |
title |
A note on the roughness length for temperature over melting snow and ice |
title_short |
A note on the roughness length for temperature over melting snow and ice |
title_full |
A note on the roughness length for temperature over melting snow and ice |
title_fullStr |
A note on the roughness length for temperature over melting snow and ice |
title_full_unstemmed |
A note on the roughness length for temperature over melting snow and ice |
title_sort |
note on the roughness length for temperature over melting snow and ice |
publisher |
Wiley |
publishDate |
2001 |
url |
http://dx.doi.org/10.1002/qj.49712757114 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fqj.49712757114 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/qj.49712757114 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice Sheet |
genre_facet |
Greenland Ice Sheet |
op_source |
Quarterly Journal of the Royal Meteorological Society volume 127, issue 571, page 255-260 ISSN 0035-9009 1477-870X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/qj.49712757114 |
container_title |
Quarterly Journal of the Royal Meteorological Society |
container_volume |
127 |
container_issue |
571 |
container_start_page |
255 |
op_container_end_page |
260 |
_version_ |
1812814242131214336 |