Date SINGLE-COLUMN MODEL SIMULATIONS
3 We evaluate the ability of a typical cloud parameterization from a global model (CCM3 from NCAR) to simulate the Arctic cloudiness and longwave radiative fluxes during wintertime. Simulations are conducted with a Single-Column Model (SCM) forced with observations and reanalysis data from the Surfa...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.533.621 2023-05-15T14:39:29+02:00 Date SINGLE-COLUMN MODEL SIMULATIONS Cécile Hannay Of Arctic Cloudiness Surface Radiative Fluxes Licenciée En Sciences Physiques The Pennsylvania State University CiteSeerX Archives 2001 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.533.621 http://www2.gi.alaska.edu/~bhatt/proffexp.docs/Hannay.thesis.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.533.621 http://www2.gi.alaska.edu/~bhatt/proffexp.docs/Hannay.thesis.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www2.gi.alaska.edu/~bhatt/proffexp.docs/Hannay.thesis.pdf text 2001 ftciteseerx 2016-01-08T10:43:22Z 3 We evaluate the ability of a typical cloud parameterization from a global model (CCM3 from NCAR) to simulate the Arctic cloudiness and longwave radiative fluxes during wintertime. Simulations are conducted with a Single-Column Model (SCM) forced with observations and reanalysis data from the Surface Heat Budget of the Arctic Ocean (SHEBA) experiment. Typically, the SCM overestimates the Arctic cloud fraction and the downwelling longwave flux. Moreover, the SCM does not capture accurately the temperature and moisture profiles, and the surface flux fields. Relaxing temperature and moisture profiles to observed values dramatically improves the simulations. This suggests that the cloud parameterization of CCM3 is suitable for Arctic clouds, as long as the temperature and moisture fields are captured correctly. Sensitivities studies show that the cloud fraction is not very sensitive to cloud type, ice effective radius, ice liquid ratio amount and uncertainty of the advective forcing. 4 Text Arctic Arctic Ocean Surface Heat Budget of the Arctic Ocean Unknown Arctic Arctic Ocean |
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ftciteseerx |
language |
English |
description |
3 We evaluate the ability of a typical cloud parameterization from a global model (CCM3 from NCAR) to simulate the Arctic cloudiness and longwave radiative fluxes during wintertime. Simulations are conducted with a Single-Column Model (SCM) forced with observations and reanalysis data from the Surface Heat Budget of the Arctic Ocean (SHEBA) experiment. Typically, the SCM overestimates the Arctic cloud fraction and the downwelling longwave flux. Moreover, the SCM does not capture accurately the temperature and moisture profiles, and the surface flux fields. Relaxing temperature and moisture profiles to observed values dramatically improves the simulations. This suggests that the cloud parameterization of CCM3 is suitable for Arctic clouds, as long as the temperature and moisture fields are captured correctly. Sensitivities studies show that the cloud fraction is not very sensitive to cloud type, ice effective radius, ice liquid ratio amount and uncertainty of the advective forcing. 4 |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Cécile Hannay Of Arctic Cloudiness Surface Radiative Fluxes Licenciée En Sciences Physiques |
spellingShingle |
Cécile Hannay Of Arctic Cloudiness Surface Radiative Fluxes Licenciée En Sciences Physiques Date SINGLE-COLUMN MODEL SIMULATIONS |
author_facet |
Cécile Hannay Of Arctic Cloudiness Surface Radiative Fluxes Licenciée En Sciences Physiques |
author_sort |
Cécile Hannay |
title |
Date SINGLE-COLUMN MODEL SIMULATIONS |
title_short |
Date SINGLE-COLUMN MODEL SIMULATIONS |
title_full |
Date SINGLE-COLUMN MODEL SIMULATIONS |
title_fullStr |
Date SINGLE-COLUMN MODEL SIMULATIONS |
title_full_unstemmed |
Date SINGLE-COLUMN MODEL SIMULATIONS |
title_sort |
date single-column model simulations |
publishDate |
2001 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.533.621 http://www2.gi.alaska.edu/~bhatt/proffexp.docs/Hannay.thesis.pdf |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Surface Heat Budget of the Arctic Ocean |
genre_facet |
Arctic Arctic Ocean Surface Heat Budget of the Arctic Ocean |
op_source |
http://www2.gi.alaska.edu/~bhatt/proffexp.docs/Hannay.thesis.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.533.621 http://www2.gi.alaska.edu/~bhatt/proffexp.docs/Hannay.thesis.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766311476418576384 |