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Numerical simulation of the mesoscal...

Bao, Shaowu.

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Numerical simulation of the mesoscale air-sea interaction over the Western Pacific warm pool.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Numerical simulation of the mesoscale air-sea interaction over the Western Pacific warm pool./
Author:	Bao, Shaowu.
Description:	123 p.
Notes:	Source: Dissertation Abstracts International, Volume: 63-12, Section: B, page: 5893.
Contained By:	Dissertation Abstracts International63-12B.
Subject:	Physics, Atmospheric Science. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3076395
ISBN:	0493969160

Numerical simulation of the mesoscale air-sea interaction over the Western Pacific warm pool.
Bao, Shaowu.

Numerical simulation of the mesoscale air-sea interaction over the Western Pacific warm pool. - 123 p.

Source: Dissertation Abstracts International, Volume: 63-12, Section: B, page: 5893.

Thesis (Ph.D.)--North Carolina State University, 2002.

The purpose of the research is to improve our understanding of the air-sea interaction processes over the region of western Pacific warm pool and ultimately improve weather and climate predictions. To achieve this goal, an air-sea coupled numerical model that includes the momentum, heat and freshwater fluxes across the air-sea interface is developed by combining the Advanced Regional Prediction System (ARPS) and the Princeton Ocean Model (POM).

ISBN: 0493969160Subjects--Topical Terms:

1019431
Physics, Atmospheric Science.

Numerical simulation of the mesoscale air-sea interaction over the Western Pacific warm pool.
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100 1 $a Bao, Shaowu. $3 1899965
245 1 0 $a Numerical simulation of the mesoscale air-sea interaction over the Western Pacific warm pool.
300 $a 123 p.
500 $a Source: Dissertation Abstracts International, Volume: 63-12, Section: B, page: 5893.
500 $a Chairs: Sethu Raman; Lian Xie.
502 $a Thesis (Ph.D.)--North Carolina State University, 2002.
520 $a The purpose of the research is to improve our understanding of the air-sea interaction processes over the region of western Pacific warm pool and ultimately improve weather and climate predictions. To achieve this goal, an air-sea coupled numerical model that includes the momentum, heat and freshwater fluxes across the air-sea interface is developed by combining the Advanced Regional Prediction System (ARPS) and the Princeton Ocean Model (POM).
520 $a First, a squall line system observed during the Tropical Ocean Global Atmosphere/Coupled Ocean-Atmosphere Response Experiment (TOGA/COARE) Intensive Observation Period (IOP) is simulated. The simulation results are in agreement with the observations. Sensitivity experiments reveal that the orientation of the initial perturbation can affect the development of the squall line. Inclusion of ice microphysics and surface fluxes affects the strength and extent of the simulated downdraft-induced low level cold air pool.
520 $a Then, the ocean's response to precipitation is investigated using the POM model. The results show that the rainfall-induced heat and salinity gradients cause a thin low density, low temperature stable layer near sea surface. The rainfall-induced stable layer near the surface diminishes the downward transfer of the effects of the atmospheric forcing. This causes the effects of the atmospheric forcing to be concentrated accumulate near the sea surface. Because of this rainfall-induced shallow (about 10 m) stable layer, the sea surface responds to atmospheric forcing much faster than it would do without the rainfall-induced stable layer.
520 $a Finally, the air sea coupled system is used to investigate the ocean's response to an observed squall line precipitation process and the feedback effects of the sea surface temperature (SST) variation on the atmosphere. The results show that the SST feedback effect does not have a significant influence on the local existing atmospheric convection. However, the feedback effects have significant effect on the variation of sensible and latent heat fluxes across the air-sea interface, and hence may significantly affect the overall heat and moisture balance in the tropical coupled atmosphere-ocean system. Thus, parameterization schemes of heat and moisture fluxes in large-scale models need to consider not only air-sea heat fluxes due to temperature differences and evaporation, but also the effects of precipitation.
590 $a School code: 0155.
650 4 $a Physics, Atmospheric Science. $3 1019431
690 $a 0608
710 2 0 $a North Carolina State University. $3 1018772
773 0 $t Dissertation Abstracts International $g 63-12B.
790 1 0 $a Raman, Sethu, $e advisor
790 1 0 $a Xie, Lian, $e advisor
790 $a 0155
791 $a Ph.D.
792 $a 2002
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3076395