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Climate Analysis and Modeling

Regional Climate Modeling:
Dynamic downscaling and Associated Researches and Applications

Dynamic downscaling research in APCC mostly focuses on the seasonal prediction and on the study of associated uncertainties. The experiments are mostly based on RegCM4 and WRF. Our products bridge the gap from the large-scale low-resolution seasonal prediction to local-scale high-resolution requirement of the APCC members. Those products can provide services for such as water management, extreme weather, hurricane frequency, and so on.

Meanwhile, RCM introduces additional uncertainties to the downscaling application. Besides the uncertainties coming from initial condition and internal dynamics, the researches in APCC are interested in how to decrease the uncertainties induced by lateral boundary large-scale forcing, which could improve the quality of our products to provide efficient services.

APCC Coupled model History

climate prediction system

climate prediction system

2007 Introduced CCSM3

  • Ported and installed NCAR CCSM3.0 on KMA Cray machine
  • Ran climatology run and verified its veracity against observations

climate prediction system

2008~2009 Developed and implemented CCSM3 nudging method

  • Produced Seasonal forecast for coupled 6-month MME prediction
  • ENSO and IOD prediction

climate prediction system

2010~2011 Developed and applying 3-D Ocean initialization

  • Produced Seasonal forecast for coupled 6-month MME prediction
  • Comparing the output with CCSM3 output with nudging method

climate prediction system

2011 Develop and apply the atmosphere initialization

  • Produced Seasonal forecast for coupled 6-month MME prediction
  • Comparing the output with CCSM3 output using other method

climate prediction system

2012~2013 Apply LAND initialization and introduce CESM 1.x

  • Be going to change the CCSM3 to CESM 1.x and verify the model outputs
  • Will apply atmosphere, ocean and land initialization and compare with CCSM3 output

New CCSM3 and CESM Dynamical Seasonal Forecast System with Near Real-time 3-D Ocean Analysis

climate prediction system

  • Improvement of real-time seasonal predictability of APCC/CCSM3 and CESM coupled model
  • Provision of APCC/CCSM3 and CESM forecast data to APCC Experimental Tier-1 MME system
  • Use of APCC/CCSM3 and CESM hindcast/forecast data as a boundary condition of dynamical regional model for local climate information