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Title [2014] Investigation of Climate Change Mechanism by Observation and Simulation of Polar Climate for the Past and Present
Years 2013
Writer Kim Seong Joong (seongjkim@kopri.re.kr) Date 2015-04-14 Count 2522
Project Title


Investigation of Climate Change Mechanism by Observation
and Simulation of Polar Climate for the Past and Present

Project Investigator


Seong-Joong Kim, Soon-Do Hur, Sang-Bum Hong, Hee-Jin Hwang, Jung-Ho Kang,
Yeongcheol Han, Sang-Jong Park, Taejin Choi, Young-Jun Yoon, Geonhwa Jee,
Jeong-Han Kim, Joo-Hong Kim, Baek-Min Kim 

Period  


 
2014.1.1 ~ 2014. 12.31

Objectives 

 
 • Investigation of the climate change mechanism via reconstruction of past climate records, present climate observation, and using numerical simulation

 • Examining the cause of the climate contrast between west and east Antarctica
 • Understanding the role of Arctic sea ice in modulating the Arctic Oscillation

 

Contents


 • Quantification of polar climate change through proxy reconstruction and in-situ observation under the framework of infrastructure

 • In-situ observation for the energy interaction between atmosphere-sea ice-ocean and atmospheric boundary layer characteristics

 • High-resolution proxy data reconstruction using the Greenland NEEM and ice cores from south Victoria Land of East Antarctica

 • Investigation of the climate change mechanism through numerical simulation with an improved model based on observed data


Result

 
 • Weakening of the stratospheric polar vortex by Arctic sea ice loss, Nature Communications, 2014.

 • Connecting early summer cloud-controlled sunlight and late summer sea ice in the Arctic, JGR, 2014.

 • Characterising terrestrial influences on Antarctic air masses using Radon-222 measurements at King George Island, Atmospheric Chemistry and Physics, 2014.

 • A climatology of medium-scale gravity wave activity in the midlatitude/low-latitude daytime upper thermosphere as observed by CHAMP, JGR, 2014.


Future plans

 
 • Understanding of the cause of rapid warming in west Antarctica and its role in global climate change through observations and simulations

 • Improvement of winter weather forecast over east Asia through an understanding of the relation between Arctic sea ice and the Arctic polar vortex

 • Leading an international joint ice coring program for drilling ice core in Antarctica and reconstructing high-resolution ice record of climate and environmental changes during the past 20 ka


photos & description

 
 • Fig. 1. Model Ensemble-mean response for the reduced Arctic sea-ice condition for (a) surface air temperature, (b) geopotential height anomaly at 500 hPa, (c) evolution of Polar Cap Height
Fig. 1. Model Ensemble-mean response for the reduced Arctic sea-ice condition for (a) surface air temperature, (b) geopotential height anomaly at 500 hPa, (c) evolution of Polar Cap Height

 
 • Fig. 2. Leading EOF of JJA sea level pressure during the Last Glacial Maximum for different coupled models

Fig. 2. Leading EOF of JJA sea level pressure during the Last Glacial Maximum for different coupled models


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Pre Understanding Environmental Changes in Arctic Permafrost Region
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