Wind and temperature profiles near the ground in stable stratification
Abstract Observed wind and temperature profiles from O'Neill, Nebraska and Antarctica are analysed to determine their characteristics in inversion conditions. Analyses of the similarity between wind and temperature profiles are presented. These show that the profiles are generally similar when...
Published in: | Quarterly Journal of the Royal Meteorological Society |
---|---|
Main Author: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
1964
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1002/qj.49709038403 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fqj.49709038403 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/qj.49709038403 |
id |
crwiley:10.1002/qj.49709038403 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1002/qj.49709038403 2024-06-02T07:58:39+00:00 Wind and temperature profiles near the ground in stable stratification McVehil, G. E. 1964 http://dx.doi.org/10.1002/qj.49709038403 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fqj.49709038403 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/qj.49709038403 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Quarterly Journal of the Royal Meteorological Society volume 90, issue 384, page 136-146 ISSN 0035-9009 1477-870X journal-article 1964 crwiley https://doi.org/10.1002/qj.49709038403 2024-05-03T10:53:52Z Abstract Observed wind and temperature profiles from O'Neill, Nebraska and Antarctica are analysed to determine their characteristics in inversion conditions. Analyses of the similarity between wind and temperature profiles are presented. These show that the profiles are generally similar when the Richardson number is small. However, there is strong evidence in the Antarctic data for a departure from similarity and a decrease in the ratio of eddy conductivity to eddy viscosity for Richardson numbers greater than 0·08. It is shown that the log‐linear wind profile fits the observations well for Richardson numbers less than about 0·14. the constant in the log‐linear equation is found to have a value of approximately seven in stable air, implying a critical gradient Richardson number of 1/7. From the log‐linear theory, heat flux and surface stress can be calculated given winds at two levels and the surface roughness. Predicted values are compared with observations. the agreement is good in the case of surface stress and fair for heat flux. Article in Journal/Newspaper Antarc* Antarctic Antarctica Wiley Online Library Antarctic The Antarctic Quarterly Journal of the Royal Meteorological Society 90 384 136 146 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract Observed wind and temperature profiles from O'Neill, Nebraska and Antarctica are analysed to determine their characteristics in inversion conditions. Analyses of the similarity between wind and temperature profiles are presented. These show that the profiles are generally similar when the Richardson number is small. However, there is strong evidence in the Antarctic data for a departure from similarity and a decrease in the ratio of eddy conductivity to eddy viscosity for Richardson numbers greater than 0·08. It is shown that the log‐linear wind profile fits the observations well for Richardson numbers less than about 0·14. the constant in the log‐linear equation is found to have a value of approximately seven in stable air, implying a critical gradient Richardson number of 1/7. From the log‐linear theory, heat flux and surface stress can be calculated given winds at two levels and the surface roughness. Predicted values are compared with observations. the agreement is good in the case of surface stress and fair for heat flux. |
format |
Article in Journal/Newspaper |
author |
McVehil, G. E. |
spellingShingle |
McVehil, G. E. Wind and temperature profiles near the ground in stable stratification |
author_facet |
McVehil, G. E. |
author_sort |
McVehil, G. E. |
title |
Wind and temperature profiles near the ground in stable stratification |
title_short |
Wind and temperature profiles near the ground in stable stratification |
title_full |
Wind and temperature profiles near the ground in stable stratification |
title_fullStr |
Wind and temperature profiles near the ground in stable stratification |
title_full_unstemmed |
Wind and temperature profiles near the ground in stable stratification |
title_sort |
wind and temperature profiles near the ground in stable stratification |
publisher |
Wiley |
publishDate |
1964 |
url |
http://dx.doi.org/10.1002/qj.49709038403 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fqj.49709038403 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/qj.49709038403 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
Quarterly Journal of the Royal Meteorological Society volume 90, issue 384, page 136-146 ISSN 0035-9009 1477-870X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/qj.49709038403 |
container_title |
Quarterly Journal of the Royal Meteorological Society |
container_volume |
90 |
container_issue |
384 |
container_start_page |
136 |
op_container_end_page |
146 |
_version_ |
1800742081757446144 |