Evaluation of Extratropical Cyclone Precipitation in the North Atlantic Basin: An analysis of ERA-Interim, WRF, and two CMIP5 models
The representation of extratropical cyclones (ETCs) precipitation in general circulation models (GCMs) and a weather research and forecasting (WRF) model is analyzed. This work considers the link between ETC precipitation and dynamical strength and tests if parameterized convection affects this link...
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ftcityunivny:oai:academicworks.cuny.edu:cc_pubs-1838 2023-05-15T17:31:17+02:00 Evaluation of Extratropical Cyclone Precipitation in the North Atlantic Basin: An analysis of ERA-Interim, WRF, and two CMIP5 models Booth, James F. Naud, Catherine M. Willison, Jeff 2017-01-01T08:00:00Z application/pdf https://academicworks.cuny.edu/cc_pubs/772 https://academicworks.cuny.edu/cgi/viewcontent.cgi?article=1838&context=cc_pubs English eng CUNY Academic Works https://academicworks.cuny.edu/cc_pubs/772 https://academicworks.cuny.edu/cgi/viewcontent.cgi?article=1838&context=cc_pubs Publications and Research Atmospheric Sciences Oceanography Oceanography and Atmospheric Sciences and Meteorology article 2017 ftcityunivny 2021-04-10T19:06:43Z The representation of extratropical cyclones (ETCs) precipitation in general circulation models (GCMs) and a weather research and forecasting (WRF) model is analyzed. This work considers the link between ETC precipitation and dynamical strength and tests if parameterized convection affects this link for ETCs in the North Atlantic Basin. Lagrangian cyclone tracks of ETCs in ERA-Interim reanalysis (ERAI), the GISS and GFDL CMIP5 models, and WRF with two horizontal resolutions are utilized in a compositing analysis. The 20-km resolution WRF model generates stronger ETCs based on surface wind speed and cyclone precipitation. The GCMs and ERAI generate similar composite means and distributions for cyclone precipitation rates, but GCMs generate weaker cyclone surface winds than ERAI. The amount of cyclone precipitation generated by the convection scheme differs significantly across the datasets, with GISS generating the most, followed by ERAI and then GFDL. The models and reanalysis generate relatively more parameterized convective precipitation when the total cyclone-averaged precipitation is smaller. This is partially due to the contribution of parameterized convective precipitation occurring more often late in the ETC life cycle. For reanalysis and models, precipitation increases with both cyclone moisture and surface wind speed, and this is true if the contribution from the parameterized convection scheme is larger or not. This work shows that these different models generate similar total ETC precipitation despite large differences in the parameterized convection, and these differences do not cause unexpected behavior in ETC precipitation sensitivity to cyclone moisture or surface wind speed. Article in Journal/Newspaper North Atlantic City University of New York: CUNY Academic Works |
institution |
Open Polar |
collection |
City University of New York: CUNY Academic Works |
op_collection_id |
ftcityunivny |
language |
English |
topic |
Atmospheric Sciences Oceanography Oceanography and Atmospheric Sciences and Meteorology |
spellingShingle |
Atmospheric Sciences Oceanography Oceanography and Atmospheric Sciences and Meteorology Booth, James F. Naud, Catherine M. Willison, Jeff Evaluation of Extratropical Cyclone Precipitation in the North Atlantic Basin: An analysis of ERA-Interim, WRF, and two CMIP5 models |
topic_facet |
Atmospheric Sciences Oceanography Oceanography and Atmospheric Sciences and Meteorology |
description |
The representation of extratropical cyclones (ETCs) precipitation in general circulation models (GCMs) and a weather research and forecasting (WRF) model is analyzed. This work considers the link between ETC precipitation and dynamical strength and tests if parameterized convection affects this link for ETCs in the North Atlantic Basin. Lagrangian cyclone tracks of ETCs in ERA-Interim reanalysis (ERAI), the GISS and GFDL CMIP5 models, and WRF with two horizontal resolutions are utilized in a compositing analysis. The 20-km resolution WRF model generates stronger ETCs based on surface wind speed and cyclone precipitation. The GCMs and ERAI generate similar composite means and distributions for cyclone precipitation rates, but GCMs generate weaker cyclone surface winds than ERAI. The amount of cyclone precipitation generated by the convection scheme differs significantly across the datasets, with GISS generating the most, followed by ERAI and then GFDL. The models and reanalysis generate relatively more parameterized convective precipitation when the total cyclone-averaged precipitation is smaller. This is partially due to the contribution of parameterized convective precipitation occurring more often late in the ETC life cycle. For reanalysis and models, precipitation increases with both cyclone moisture and surface wind speed, and this is true if the contribution from the parameterized convection scheme is larger or not. This work shows that these different models generate similar total ETC precipitation despite large differences in the parameterized convection, and these differences do not cause unexpected behavior in ETC precipitation sensitivity to cyclone moisture or surface wind speed. |
format |
Article in Journal/Newspaper |
author |
Booth, James F. Naud, Catherine M. Willison, Jeff |
author_facet |
Booth, James F. Naud, Catherine M. Willison, Jeff |
author_sort |
Booth, James F. |
title |
Evaluation of Extratropical Cyclone Precipitation in the North Atlantic Basin: An analysis of ERA-Interim, WRF, and two CMIP5 models |
title_short |
Evaluation of Extratropical Cyclone Precipitation in the North Atlantic Basin: An analysis of ERA-Interim, WRF, and two CMIP5 models |
title_full |
Evaluation of Extratropical Cyclone Precipitation in the North Atlantic Basin: An analysis of ERA-Interim, WRF, and two CMIP5 models |
title_fullStr |
Evaluation of Extratropical Cyclone Precipitation in the North Atlantic Basin: An analysis of ERA-Interim, WRF, and two CMIP5 models |
title_full_unstemmed |
Evaluation of Extratropical Cyclone Precipitation in the North Atlantic Basin: An analysis of ERA-Interim, WRF, and two CMIP5 models |
title_sort |
evaluation of extratropical cyclone precipitation in the north atlantic basin: an analysis of era-interim, wrf, and two cmip5 models |
publisher |
CUNY Academic Works |
publishDate |
2017 |
url |
https://academicworks.cuny.edu/cc_pubs/772 https://academicworks.cuny.edu/cgi/viewcontent.cgi?article=1838&context=cc_pubs |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Publications and Research |
op_relation |
https://academicworks.cuny.edu/cc_pubs/772 https://academicworks.cuny.edu/cgi/viewcontent.cgi?article=1838&context=cc_pubs |
_version_ |
1766128787918946304 |