Future projections of precipitation change over the Korean peninsula

Title
Future projections of precipitation change over the Korean peninsula
Author(s)
정춘용; 장찬주; 김형진; 권민호
KIOST Author(s)
Jang, Chan Joo(장찬주)Kwon, Minho(권민호)
Publication Year
2013-09-06
Abstract
Global climate change induced by an increased level of greenhouse gases is typically estimated by global general circulation model (GCMs). However, this approach has been difficult to provide regional details due to GCM’s limitations in horizontal resolution as well as in physical parameterizations. To overcome such difficulty, dynamical downscaling methods have been proposed, through which local to regional climatic conditions can be produced in greater details. the Pseudo Global Warming Method (PGWM) introduced recently by Kimura (2007) and Sato et al. (2007) adopts a mixture of observations and GCM simulations to carry out regional climate model (RCM) simulation. The present study aims to investigate climate change in an anthropogenically warmed climate with the aid of the PGWM, with particular focus on the summer rainfall variability over East Asia.The PGWM relies on the differences between present and future climates simulated by GCMs. The selection of GCMs used for downscaling, therefore, is of central importance for the PGW simulations. It is generally believed that a GCM’s ability to realistically simulate the present climate could be considered a measure of its capability to project the future. In this context, we assessed the fidelity of the present East Asian monsoon simulated by a suite of coupled GCMs (CGCMs) by applying a multi-variate EOF (MVEOF) to climatological monthly rainfall (PR) and zonal wirizontal resolution as well as in physical parameterizations. To overcome such difficulty, dynamical downscaling methods have been proposed, through which local to regional climatic conditions can be produced in greater details. the Pseudo Global Warming Method (PGWM) introduced recently by Kimura (2007) and Sato et al. (2007) adopts a mixture of observations and GCM simulations to carry out regional climate model (RCM) simulation. The present study aims to investigate climate change in an anthropogenically warmed climate with the aid of the PGWM, with particular focus on the summer rainfall variability over East Asia.The PGWM relies on the differences between present and future climates simulated by GCMs. The selection of GCMs used for downscaling, therefore, is of central importance for the PGW simulations. It is generally believed that a GCM’s ability to realistically simulate the present climate could be considered a measure of its capability to project the future. In this context, we assessed the fidelity of the present East Asian monsoon simulated by a suite of coupled GCMs (CGCMs) by applying a multi-variate EOF (MVEOF) to climatological monthly rainfall (PR) and zonal wi
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/26796
Bibliographic Citation
제 8차 기후연구 공동 워크숍, pp.20 - 21, 2013
Publisher
한국해양과학기술원
Type
Conference
Language
English
Publisher
한국해양과학기술원
Related Researcher
Research Interests

climate dynamics,climate prediction,기후역학,기후예측

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