Scientific Questions

01

Is there sufficient scientific evidence for 1.5°C or 2°C?

02

Is atmospheric circulation, environment, extreme weather, and climate response to the 1 or 2°C of warming reversible? Is it predictable?

Where we focus

Why the gap?

and what is the real? 

  • Lack of physical understanding of tipping elements

  • Consider various tipping elements

  • Interaction through C/N cycle and dynamical/thermodynamical processes

  • Process bias correction (beyond mean bias)

  • Reversibility and its range analysis

  • Locality in irreversibility

Complexity.png

To rediscover the present climate system

  • To identify and diagnose irreversible processes in the past and future

  • To investigate interactions between tipping elements

  • To analyse the possibility of a catastrophic chain reaction

Strong_tipping.png
Weak_tipping.png

Paradigm shift in the climate system

  • Major tipping elements;
     - Gas hydrate in permafrost
     - Dynamical/thermodynamical processes of the ice sheet and sea ice

  • Understanding of irreversible climate components
    and their interaction

  • A large uncertainty in circulations and feedbacks

  • Integrated research including geochemical processes

feedbacks.png

Nonlinear responses in East Asian extreme weather and climate

  • The response of East Asian extreme weather to global warming is NOT linear. 

  • A large possibility of amplified nonlinearity due to the simultaneous effects coming from the Arctic and tropical forcing, and mid-latitude internal dynamics

  • Evaluation of the response to linear/nonlinear climate change and its influence 

  • Evaluation of predictability and of the possibility of the nonlinearity amplification based on feedback processes in tipping elements

midlatitudes

jet.png

Arctic

Tropics

How we work

Put your cursor on each circle/box to see who is working on it.

Relationship3.png

Ocean/Land

Ecosystem

Prof. Kug

Prof. Hong

Atmosphere

N/C cycle,

Aerosol

Prof. Park

Prof. Yeh

Ocean

Circulation

(AMOC)

Prof. An

Sea ice

Land ice

Prof. An

Prof. Ahn

Permafrost

Prof. Ahn

Prof. Hong

Global/East Asian
irreversible
climate change

Prof. Yeh

Prof. Kug

East Asian
extreme weather/
climate change

Prof. Son

Prof. Min

East Asian
environmental
change

Prof. Park

Prof. Son

To achieve our goals

strategy_dark-letters.png