Identification

Title

Diurnal variation of summer rainfall over the Tibetan Plateau and its neighboring regions revealed by TRMM multi-satellite precipitation analysis

Abstract

This paper investigates the diurnal variation of summertime precipitation over the Tibetan Plateau and its neighboring areas using the TMPA (TRMM Multi-satellite Precipitation Analysis) data during 2002-2006. The TMPA precipitation product is compared with rain gauge observations from 643 meteorological sites in China to confirm its applicability and fidelity. Both composite and harmonic analyses are applied to quantify the diurnal cycles of precipitation intensity and frequency. The harmonic amplitude indicates pronounced daily variability over the Tibetan Plateau and its nearby regions, with the strongest diurnal signal over the central Plateau and Indian Peninsula southwest of the Plateau. The harmonic phase displays that the timing of the maximum precipitation amount and frequency has considerably geographical dependence. Overall, a late-afternoon-evening maximum and a morning minimum are dominant in the central Plateau, whereas a late-night maximum is prevalent around the Plateau and in the Sichuan Basin, and a morning and afternoon maximum appear in the upper and mid-lower reaches of the Yangtze River, respectively. There is a coherent diurnal variation pattern east of the Plateau, characterized by systematically delayed precipitation maximum away from the Plateau. The significant nocturnal rainfall in the Sichuan Basin is likely associated with eastward-propagating convective systems originated over the Tibetan Plateau.

Resource type

document

Resource locator

Unique resource identifier

code

http://n2t.net/ark:/85065/d79s1sb7

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

geoscientificInformation

Keywords

Keyword set

keyword value

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

North bounding latitude

South bounding latitude

Temporal reference

Temporal extent

Begin position

End position

Dataset reference date

date type

publication

effective date

2008-05-01T00:00:00Z

Frequency of update

Quality and validity

Lineage

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

Limitations on public access

None

Responsible organisations

Responsible party

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