Evaluation of Medium-Range Forecasts for Hurricane SandySource: Monthly Weather Review:;2014:;volume( 142 ):;issue: 005::page 1962Author:Magnusson, Linus
,
Bidlot, Jean-Raymond
,
Lang, Simon T. K.
,
Thorpe, Alan
,
Wedi, Nils
,
Yamaguchi, Munehiko
DOI: 10.1175/MWR-D-13-00228.1Publisher: American Meteorological Society
Abstract: n 30 October 2012 Hurricane Sandy made landfall on the U.S. East Coast with a devastating impact. Here the performance of the ECMWF forecasts (both high resolution and ensemble) are evaluated together with ensemble forecasts from other numerical weather prediction centers, available from The Observing System Research and Predictability Experiment (THORPEX) Interactive Grand Global Ensemble (TIGGE) archive. The sensitivity to sea surface temperature (SST) and model resolution for the ECMWF forecasts are explored. The results show that the ECMWF forecasts provided a clear indication of the landfall from 7 days in advance. Comparing ensemble forecasts from different centers, the authors find the ensemble forecasts from ECMWF to be the most consistent in the forecast of the landfall of Sandy on the New Jersey coastline. The impact of the warm SST anomaly off the U.S. East Coast is investigated by running sensitivity experiments with climatological SST instead of persisting the SST anomaly from the analysis. The results show that the SST anomaly had a small effect on Sandy?s track in the forecast, but the forecasts initialized with the warm SST anomaly feature a more intense system in terms of the depth of the cyclone, wind speeds, and precipitation. Furthermore, the role of spatial resolution is investigated by comparing four global simulations, spanning from TL159 (150 km) to TL3999 (5 km) horizontal resolution. Forecasts from 3 and 5 days before the landfall are evaluated. While all resolutions predict Sandy?s landfall, at very high resolution the tropical cyclone intensity and the oceanic wave forecasts are greatly improved.
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contributor author | Magnusson, Linus | |
contributor author | Bidlot, Jean-Raymond | |
contributor author | Lang, Simon T. K. | |
contributor author | Thorpe, Alan | |
contributor author | Wedi, Nils | |
contributor author | Yamaguchi, Munehiko | |
date accessioned | 2017-06-09T17:31:26Z | |
date available | 2017-06-09T17:31:26Z | |
date copyright | 2014/05/01 | |
date issued | 2014 | |
identifier issn | 0027-0644 | |
identifier other | ams-86689.pdf | |
identifier uri | http://onlinelibrary.yabesh.ir/handle/yetl/4230274 | |
description abstract | n 30 October 2012 Hurricane Sandy made landfall on the U.S. East Coast with a devastating impact. Here the performance of the ECMWF forecasts (both high resolution and ensemble) are evaluated together with ensemble forecasts from other numerical weather prediction centers, available from The Observing System Research and Predictability Experiment (THORPEX) Interactive Grand Global Ensemble (TIGGE) archive. The sensitivity to sea surface temperature (SST) and model resolution for the ECMWF forecasts are explored. The results show that the ECMWF forecasts provided a clear indication of the landfall from 7 days in advance. Comparing ensemble forecasts from different centers, the authors find the ensemble forecasts from ECMWF to be the most consistent in the forecast of the landfall of Sandy on the New Jersey coastline. The impact of the warm SST anomaly off the U.S. East Coast is investigated by running sensitivity experiments with climatological SST instead of persisting the SST anomaly from the analysis. The results show that the SST anomaly had a small effect on Sandy?s track in the forecast, but the forecasts initialized with the warm SST anomaly feature a more intense system in terms of the depth of the cyclone, wind speeds, and precipitation. Furthermore, the role of spatial resolution is investigated by comparing four global simulations, spanning from TL159 (150 km) to TL3999 (5 km) horizontal resolution. Forecasts from 3 and 5 days before the landfall are evaluated. While all resolutions predict Sandy?s landfall, at very high resolution the tropical cyclone intensity and the oceanic wave forecasts are greatly improved. | |
publisher | American Meteorological Society | |
title | Evaluation of Medium-Range Forecasts for Hurricane Sandy | |
type | Journal Paper | |
journal volume | 142 | |
journal issue | 5 | |
journal title | Monthly Weather Review | |
identifier doi | 10.1175/MWR-D-13-00228.1 | |
journal fristpage | 1962 | |
journal lastpage | 1981 | |
tree | Monthly Weather Review:;2014:;volume( 142 ):;issue: 005 | |
contenttype | Fulltext |