Projected change in East Asian summer monsoon by dynamic downscaling: Moisture budget analysis SCIE SCOPUS KCI

Cited 5 time in WEB OF SCIENCE Cited 5 time in Scopus
Title
Projected change in East Asian summer monsoon by dynamic downscaling: Moisture budget analysis
Author(s)
Jung, Chun-Yong; Shin, Ho-Jeong; Jang, Chan Joo; Kim, Hyung-Jin
KIOST Author(s)
Jang, Chan Joo(장찬주)
Publication Year
2015-02
Abstract
The summer monsoon considerably affects water resource and natural hazards including flood and drought in East Asia, one of the world's most densely populated area. In this study, we investigate future changes in summer precipitation over East Asia induced by global warming through dynamical downscaling with the Weather Research and Forecast model. We have selected a global model from the Coupled Model Intercomparison Project Phase 5 based on an objective evaluation for East Asian summer monsoon and applied its climate change under Representative Concentration Pathway 4.5 scenario to a pseudo global warming method. Unlike the previous studies that focused on a qualitative description of projected precipitation changes over East Asia, this study tried to identify the physical causes of the precipitation changes by analyzing a local moisture budget. Projected changes in precipitation over the eastern foothills area of Tibetan Plateau including Sichuan Basin and Yangtze River displayed a contrasting pattern: a decrease in its northern area and an increase in its southern area. A local moisture budget analysis indicated the precipitation increase over the southern area can be mainly attributed to an increase in horizontal wind convergence and surface evaporation. On the other hand, the precipitation decrease over the northern area can be largely explained by horizontal advection of dry air from the northern continent and by divergent wind flow. Regional changes in future precipitation in East Asia are likely to be attributed to different mechanisms which can be better resolved by regional dynamical downscaling.
ISSN
1976-7633
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/2544
DOI
10.1007/s13143-015-0061-x
Bibliographic Citation
ASIA-PACIFIC JOURNAL OF ATMOSPHERIC SCIENCES, v.51, no.1, pp.77 - 89, 2015
Publisher
KOREAN METEOROLOGICAL SOC
Subject
ASSESSING FUTURE CHANGES; CLIMATE CHANGES; PRECIPITATION; SIMULATION; IMPACT; MODEL; CYCLE
Keywords
East Asian summer monsoon; dynamical downscaling; pseudo global warming; moisture budget analysis; regional climate change
Type
Article
Language
English
Document Type
Article
Publisher
KOREAN METEOROLOGICAL SOC
Related Researcher
Research Interests

upper ocean dynamics,regional climate modeling,ocean climate change,해양상층역학,지역기후모델링,해양기후변화

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