Korea Institute of Ocean Science and Technology Earth System Model and Its Simulation Characteristics
- Title
- Korea Institute of Ocean Science and Technology Earth System Model and Its Simulation Characteristics
- Author
- 예상욱
- Keywords
- CMIP6; El Niño-Southern Oscillation; KIOST-ESM; Madden–Julian Oscillation; Physical parameterization; Southern Ocean warm bias
- Issue Date
- 2021-03
- Publisher
- KOREA INST OCEAN SCIENCE & TECHNOLOGY-KIOST
- Citation
- OCEAN SCIENCE JOURNAL, v. 56, NO 1, Page. 18-45
- Abstract
- We document the performance of a new earth system model developed at Korea Institute of Ocean Science and Technology,
called the KIOST-ESM, based on a low-resolution (~ 200 km for the atmosphere, ~ 100 km for the ocean) version of the
Geophysical Fluid Dynamics Laboratory Climate Model 2.5. The main changes made to the base model include adopting a
unifed convection scheme for cumulus convection and an ocean mixed layer parameterization considering Langmuir circulation, which improve the model fdelity signifcantly. In addition, the KIOST-ESM adopts a new soil respiration scheme in
the dynamic vegetation process of its land component. The performance of the KIOST-ESM was assessed in pre-industrial
and historical simulations that are made as part of its participation in the Coupled Model Intercomparison Project phase 6
(CMIP6). The response of the earth system to increasing greenhouse gas concentrations was analyzed in the ScenarioMIP
simulations. An abrupt quadrupling of CO2 experiment suggests that the equilibrium climate sensitivity of KIOST-ESM is
3.36 K—very close to the averaged one obtained from CMIP5 simulations. Although the KIOST-ESM showed a notable cold
bias in the Northern Hemisphere and the double Inter-Tropical Convergence Zone bias, the KIOST-ESM outperforms the
base model in simulating the mean sea surface temperature over the Southern Ocean and over the cold tongue in the tropical
Pacifc. The KIOST-ESM can also simulate the dominant tropical variability in intraseasonal (Madden–Julian Oscillation)
and interannual (El Niño-Southern Oscillation) timescales more realistically.
- URI
- https://link.springer.com/article/10.1007/s12601-021-00001-7https://repository.hanyang.ac.kr/handle/20.500.11754/171801
- ISSN
- 2005-7172; 1738-5261
- DOI
- 10.1007/s12601-021-00001-7
- Appears in Collections:
- COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > MARINE SCIENCE AND CONVERGENCE ENGINEERING(해양융합공학과) > Articles
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