Imperial College London
Alternate

ProfessorRalfToumi

Faculty of Natural Sciences, The Grantham Institute for Climate Change

Co-Director, Grantham Institute - Climate Change&Environment
 
 
 
//

Contact

 

+44 (0)20 7594 7668r.toumi Website CV

 
 
//

Location

 

713Huxley BuildingSouth Kensington Campus

//

Summary

 

Publications

Citation

BibTex format

@article{Toumi:2016:10.1002/qj.2845,
author = {Toumi, R and wong, B},
doi = {10.1002/qj.2845},
journal = {Quarterly Journal of the Royal Meteorological Society},
pages = {2541--2550},
title = {Effect of extreme ocean precipitation on sea surface elevation and storm surges},
url = {http://dx.doi.org/10.1002/qj.2845},
volume = {142},
year = {2016}
}
Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Ocean models that neglect mass and momentum contributions from precipitation can have asystematic bias in sea surface height (SSH). Here, a new rainfall scheme is introduced intothe Regional Ocean Modelling System (ROMS) to incorporate the effects of precipitationmass. When precipitation is added to the sea surface, it spreads out via surface gravity wavesthat increase in propagation speed with increasing water depth. Over several days, the SSHincrease due to the precipitation mass added created a geostrophic adjustment, generatinganti-cyclonic geostrophic currents around the SSH increase. The transfer of momentum fromprecipitation to the sea surface, or rain stress, can also be important. In the case study of areal tropical cyclone, Monica passing North Australia, the effect of incorporatingprecipitation mass is compared with other processes affecting the storm surge: surface wind,inverse barometer effect and rain stress. The maximum SSH response is 170.6 cm for thewind effect, 61.5 cm for the inverse barometer effect, 7.5 cm for the effect of rain stress and6.4 cm for the effect of rain mass. Each process has been shown to have different spatialinfluences. The effect of rain mass has a strong remote influence compared to the inversebarometer effect and the effect of rain stress. This is particularly seen in semi-enclosed bays.
AU  - Toumi,R
AU  - wong,B
DO  - 10.1002/qj.2845
EP  - 2550
PY  - 2016///
SN  - 1477-870X
SP  - 2541
TI  - Effect of extreme ocean precipitation on sea surface elevation and storm surges
T2  - Quarterly Journal of the Royal Meteorological Society
UR  - http://dx.doi.org/10.1002/qj.2845
UR  - http://hdl.handle.net/10044/1/32911
VL  - 142
ER  -
Download