Asymmetry of tropical precipitation change under global warming

Chia Chou, Jien Yu Tu, Pei Hua Tan

Research output: Contribution to journalArticle

64 Citations (Scopus)

Abstract

A clear trend of tropical precipitation changes induced by global warming is found in hemispherical averages of most climate model simulations as well as from observation. It is observed that in response to global warming, an asymmetric pattern develops between tropical precipitation changes in the northern and southern hemispheres, and this asymmetry is locked with the seasonal cycle of tropical convection. In boreal summer (winter), the northern hemispherical average departure from tropical mean increases (decreases), while the departure of the southern hemispherical average decreases (increases). This implies an enhanced seasonal precipitation range between rainy and dry seasons and an increased precipitation difference between northern and southern hemispheres.

Original languageEnglish
Article numberL17708
JournalGeophysical Research Letters
Volume34
Issue number17
DOIs
Publication statusPublished - 2007 Sep 16

Fingerprint

global warming
Southern Hemisphere
asymmetry
Northern Hemisphere
dry season
climate modeling
convection
climate models
winter
summer
simulation
trends
cycles
trend

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Earth and Planetary Sciences(all)

Cite this

@article{c25ecc38ada540a6a92ffa616dbfa617,
title = "Asymmetry of tropical precipitation change under global warming",
abstract = "A clear trend of tropical precipitation changes induced by global warming is found in hemispherical averages of most climate model simulations as well as from observation. It is observed that in response to global warming, an asymmetric pattern develops between tropical precipitation changes in the northern and southern hemispheres, and this asymmetry is locked with the seasonal cycle of tropical convection. In boreal summer (winter), the northern hemispherical average departure from tropical mean increases (decreases), while the departure of the southern hemispherical average decreases (increases). This implies an enhanced seasonal precipitation range between rainy and dry seasons and an increased precipitation difference between northern and southern hemispheres.",
author = "Chia Chou and Tu, {Jien Yu} and Tan, {Pei Hua}",
year = "2007",
month = "9",
day = "16",
doi = "10.1029/2007GL030327",
language = "English",
volume = "34",
journal = "Geophysical Research Letters",
issn = "0094-8276",
publisher = "American Geophysical Union",
number = "17",

}

Asymmetry of tropical precipitation change under global warming. / Chou, Chia; Tu, Jien Yu; Tan, Pei Hua.

In: Geophysical Research Letters, Vol. 34, No. 17, L17708, 16.09.2007.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Asymmetry of tropical precipitation change under global warming

AU - Chou, Chia

AU - Tu, Jien Yu

AU - Tan, Pei Hua

PY - 2007/9/16

Y1 - 2007/9/16

N2 - A clear trend of tropical precipitation changes induced by global warming is found in hemispherical averages of most climate model simulations as well as from observation. It is observed that in response to global warming, an asymmetric pattern develops between tropical precipitation changes in the northern and southern hemispheres, and this asymmetry is locked with the seasonal cycle of tropical convection. In boreal summer (winter), the northern hemispherical average departure from tropical mean increases (decreases), while the departure of the southern hemispherical average decreases (increases). This implies an enhanced seasonal precipitation range between rainy and dry seasons and an increased precipitation difference between northern and southern hemispheres.

AB - A clear trend of tropical precipitation changes induced by global warming is found in hemispherical averages of most climate model simulations as well as from observation. It is observed that in response to global warming, an asymmetric pattern develops between tropical precipitation changes in the northern and southern hemispheres, and this asymmetry is locked with the seasonal cycle of tropical convection. In boreal summer (winter), the northern hemispherical average departure from tropical mean increases (decreases), while the departure of the southern hemispherical average decreases (increases). This implies an enhanced seasonal precipitation range between rainy and dry seasons and an increased precipitation difference between northern and southern hemispheres.

UR - http://www.scopus.com/inward/record.url?scp=35948933859&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=35948933859&partnerID=8YFLogxK

U2 - 10.1029/2007GL030327

DO - 10.1029/2007GL030327

M3 - Article

AN - SCOPUS:35948933859

VL - 34

JO - Geophysical Research Letters

JF - Geophysical Research Letters

SN - 0094-8276

IS - 17

M1 - L17708

ER -