A global survey of the instantaneous linkages between cloud vertical structure and large-scale climate
The instantaneous linkages between cloud vertical structure and various large-scale meteorological parameters are investigated using 5 years of data from the CloudSat/CALIPSO instruments. The linkages are systemically explored and quantified at all vertical levels and throughout the global ocean in...
Published in: | Journal of Geophysical Research: Atmospheres |
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ftuniveastangl:oai:ueaeprints.uea.ac.uk:85414 2023-05-15T15:13:41+02:00 A global survey of the instantaneous linkages between cloud vertical structure and large-scale climate Li, Ying Thompson, David W. J. Stephens, Graeme L. Bony, Sandrine 2014-04-16 https://ueaeprints.uea.ac.uk/id/eprint/85414/ https://doi.org/10.1002/2013JD020669 unknown Li, Ying, Thompson, David W. J., Stephens, Graeme L. and Bony, Sandrine (2014) A global survey of the instantaneous linkages between cloud vertical structure and large-scale climate. Journal of Geophysical Research: Atmospheres, 119 (7). pp. 3770-3792. ISSN 2169-897X doi:10.1002/2013JD020669 Article PeerReviewed 2014 ftuniveastangl https://doi.org/10.1002/2013JD020669 2023-01-30T21:57:11Z The instantaneous linkages between cloud vertical structure and various large-scale meteorological parameters are investigated using 5 years of data from the CloudSat/CALIPSO instruments. The linkages are systemically explored and quantified at all vertical levels and throughout the global ocean in both the long-term mean and on month-to-month timescales. A number of novel large-scale meteorological parameters are used in the analysis, including tropopause temperatures, upper tropospheric stability, and storm track activity. The results provide a baseline for evaluating physical parameterizations of clouds in GCMs and a reference for interpreting the signatures of large-scale atmospheric phenomena in cloud vertical structure. In the long-term mean, upper tropospheric cloud incidence throughout the globe increases with (1) decreasing tropopause temperature (at a rate of ∼2–4% K−1), (2) decreasing upper tropospheric stability (∼5–10% per K km−1), and (3) increasing large-scale vertical motion (∼1–4% per 10 hPa d−1). In contrast, lower tropospheric cloud incidence increases with (1) increasing lower tropospheric stability (10% per K km−1) and descending motion (1% per 10 hPa d−1) in regions of subtropical regime but (2) decreasing lower tropospheric stability (4% per K km−1) and ascending motion (2% per 10 hPa d−1) over the Arctic region. Variations in static stability and vertical motion account for ∼20–35% of the month-to-month variance in upper tropospheric cloudiness but less than 10% of the variance in lower tropospheric clouds. Upper tropospheric cloud incidence in the storm track regions is strongly linked to the variance of large-scale vertical motion and thus the amplitude of baroclinic waves. Article in Journal/Newspaper Arctic University of East Anglia: UEA Digital Repository Arctic Journal of Geophysical Research: Atmospheres 119 7 3770 3792 |
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Open Polar |
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University of East Anglia: UEA Digital Repository |
op_collection_id |
ftuniveastangl |
language |
unknown |
description |
The instantaneous linkages between cloud vertical structure and various large-scale meteorological parameters are investigated using 5 years of data from the CloudSat/CALIPSO instruments. The linkages are systemically explored and quantified at all vertical levels and throughout the global ocean in both the long-term mean and on month-to-month timescales. A number of novel large-scale meteorological parameters are used in the analysis, including tropopause temperatures, upper tropospheric stability, and storm track activity. The results provide a baseline for evaluating physical parameterizations of clouds in GCMs and a reference for interpreting the signatures of large-scale atmospheric phenomena in cloud vertical structure. In the long-term mean, upper tropospheric cloud incidence throughout the globe increases with (1) decreasing tropopause temperature (at a rate of ∼2–4% K−1), (2) decreasing upper tropospheric stability (∼5–10% per K km−1), and (3) increasing large-scale vertical motion (∼1–4% per 10 hPa d−1). In contrast, lower tropospheric cloud incidence increases with (1) increasing lower tropospheric stability (10% per K km−1) and descending motion (1% per 10 hPa d−1) in regions of subtropical regime but (2) decreasing lower tropospheric stability (4% per K km−1) and ascending motion (2% per 10 hPa d−1) over the Arctic region. Variations in static stability and vertical motion account for ∼20–35% of the month-to-month variance in upper tropospheric cloudiness but less than 10% of the variance in lower tropospheric clouds. Upper tropospheric cloud incidence in the storm track regions is strongly linked to the variance of large-scale vertical motion and thus the amplitude of baroclinic waves. |
format |
Article in Journal/Newspaper |
author |
Li, Ying Thompson, David W. J. Stephens, Graeme L. Bony, Sandrine |
spellingShingle |
Li, Ying Thompson, David W. J. Stephens, Graeme L. Bony, Sandrine A global survey of the instantaneous linkages between cloud vertical structure and large-scale climate |
author_facet |
Li, Ying Thompson, David W. J. Stephens, Graeme L. Bony, Sandrine |
author_sort |
Li, Ying |
title |
A global survey of the instantaneous linkages between cloud vertical structure and large-scale climate |
title_short |
A global survey of the instantaneous linkages between cloud vertical structure and large-scale climate |
title_full |
A global survey of the instantaneous linkages between cloud vertical structure and large-scale climate |
title_fullStr |
A global survey of the instantaneous linkages between cloud vertical structure and large-scale climate |
title_full_unstemmed |
A global survey of the instantaneous linkages between cloud vertical structure and large-scale climate |
title_sort |
global survey of the instantaneous linkages between cloud vertical structure and large-scale climate |
publishDate |
2014 |
url |
https://ueaeprints.uea.ac.uk/id/eprint/85414/ https://doi.org/10.1002/2013JD020669 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
Li, Ying, Thompson, David W. J., Stephens, Graeme L. and Bony, Sandrine (2014) A global survey of the instantaneous linkages between cloud vertical structure and large-scale climate. Journal of Geophysical Research: Atmospheres, 119 (7). pp. 3770-3792. ISSN 2169-897X doi:10.1002/2013JD020669 |
op_doi |
https://doi.org/10.1002/2013JD020669 |
container_title |
Journal of Geophysical Research: Atmospheres |
container_volume |
119 |
container_issue |
7 |
container_start_page |
3770 |
op_container_end_page |
3792 |
_version_ |
1766344211619119104 |