Identification

Title

The role of diurnal solenoidal circulation on propagating rainfall episodes near the Eastern Tibetan Plateau

Abstract

In this case study, numerical simulations using the Weather Research and Forecasting model (WRF) are performed for 3-4 May 2002, in which two propagating rain episodes occurred in successive days with close ties to the terrain of the Tibetan Plateau (TP) in East Asia. Through sensitivity tests, it is found that the eastern TP not only facilitated convective development in the afternoon but that the solenoidal circulation between this region and its leeside lowlands (near the Sichuan basin) also contributed to the longevity and farther downstream propagation of the episodes under prevailing westerly winds. Reversed every 12 h, the thermally driven circulation induced ascending motion near the eastern edge of the TP during daytime but over the leeside at night. The episode propagation in this case, as often observed, was in phase with the ascent, from eastern TP in the afternoon to the lee at night, indicating both enhancing and modulating effects of the solenoidal circulation.

Resource type

document

Resource locator

Unique resource identifier

code

http://n2t.net/ark:/85065/d71c1xcq

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

geoscientificInformation

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Text

originating controlled vocabulary

title

Resource Type

reference date

date type

publication

effective date

2016-01-01T00:00:00Z

Geographic location

West bounding longitude

East bounding longitude

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South bounding latitude

Temporal reference

Temporal extent

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End position

Dataset reference date

date type

publication

effective date

2010-07-01T00:00:00Z

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Use constraints

Copyright 2010 American Meteorological Society (AMS). Permission to use figures, tables, and brief excerpts from this work in scientific and educational works is hereby granted provided that the source is acknowledged. Any use of material in this work that is determined to be "fair use" under Section 107 or that satisfies the conditions specified in Section 108 of the U.S. Copyright Law (17 USC, as revised by P.L. 94-553) does not require the Society's permission. Republication, systematic reproduction, posting in electronic form on servers, or other uses of this material, except as exempted by the above statements, requires written permission or license from the AMS. Additional details are provided in the AMS Copyright Policies, available from the AMS at 617-227-2425 or amspubs@ametsoc.org. Permission to place a copy of this work on this server has been provided by the AMS. The AMS does not guarantee that the copy provided here is an accurate copy of the published work.

Limitations on public access

None

Responsible organisations

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contact position

OpenSky Support

organisation name

UCAR/NCAR - Library

full postal address

PO Box 3000

Boulder

80307-3000

email address

opensky@ucar.edu

web address

http://opensky.ucar.edu/

name: homepage

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact