Using atmospheric model output to simulate the meteorological tsunami response to Tropical Storm Helene (2000).

Mecking, Jennifer, Fogarty, C.T., Greatbatch, Richard , Sheng, J. and Mercer, D. (2009) Using atmospheric model output to simulate the meteorological tsunami response to Tropical Storm Helene (2000). Open Access Journal of Geophysical Research: Oceans, 114 . C10005. DOI 10.1029/2009JC005290.

[img]
Preview
Text
764_Mecking_2009_UsingAtmosphericModelOutputTo_Artzeit_pubid12300.pdf - Published Version

Download (1771Kb)

Supplementary data:

Abstract

In the fall of both 1999 and 2000, unexpected “rapid tides” occurred along the coast of the Avalon Peninsula of Newfoundland. These rapid tides have been linked to the passing of Tropical Storm Jose (1999) and Tropical Storm Helene (2000) over the Grand Banks. Here we examine the dynamic ocean response to Tropical Storm Helene (2000) using a barotropic shallow water ocean model forced by atmospheric pressure and surface winds derived from a simulation of Helene using a dynamical model of the atmosphere. The ocean model is able to capture the main features of the observed response at the coast of Newfoundland as seen in the available tide gauge data. Results show that the simulated sea level response at the coast is driven by a combination of wind stress and atmospheric pressure forcing, the former generally dominating. An exception is Conception Bay, Newfoundland, where the response is captured mainly by atmospheric pressure forcing. Offshore near the edge of the Grand Banks, atmospheric pressure and wind stress forcing are equally important. The wind‐forced response depends on the divergence of the surface wind stress and hence on the structure of the storm in the atmospheric model simulation. Sensitivity studies show the importance of having a small time interval (on the order of minutes) at which the atmospheric forcing is supplied to the ocean model and show the importance of the location of the storm track.

Document Type: Article
Research affiliation: OceanRep > The Future Ocean - Cluster of Excellence
OceanRep > GEOMAR > FB1 Ocean Circulation and Climate Dynamics > FB1-TM Theory and Modeling
OceanRep > GEOMAR > FB1 Ocean Circulation and Climate Dynamics > FB1-ME Maritime Meteorology
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1029/2009JC005290
ISSN: 2169-9275
Projects: Future Ocean
Date Deposited: 11 Jan 2010 12:48
Last Modified: 23 Sep 2019 18:45
URI: http://oceanrep.geomar.de/id/eprint/6459

Actions (login required)

View Item View Item

Document Downloads

More statistics for this item...