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APCC Commenced Its Boreal Summer Intraseasonal Oscillation Forecast for the Year 2020 from 1 May, 2020.
The APEC Climate Center (APCC) commenced its Boreal Summer Intraseasonal Oscillation (BSISO) forecast for the year 2020 at its website from 1 May, 2020.BSISO forecast plays an important role in predicting the beginning and the characteristics of the Asian summer monsoon. The Oscillation is a large-scale convection, with a period of 15 to 60 days. It originates over the Indian Ocean, gradually traveling eastward as well as north with a diverse structure. It affects the beginning of the Asian summer monsoon, circulation of atmosphere, and weather patterns.Also, BSISO forecast provides information that helps predict dry and wet seasons in Asia by tracing large scale zones of precipitation. It plays an important role in predicting hydrometeorological extreme weather phenomena. Users can therefore prepare for disasters like heavy rainfall, drought, and heat wave.Starting this year, APCC launched new contents of BSISO forecast. BSISO impact anomaly shows local impact of BSISO activity over the Asian monsoon region for various variables such as temperature, precipitation, wind and so on. Also, users are able to download forecast indices from participating models and find model information. It is expected that these new contents help users get more intuitive and useful information.APCC first provided BSISO forecast services at its website, in cooperation with the World Meteorological Organization (WMO), the Working Group on Numerical Experimentation (WGNE) and the Madden Julian Oscillation (MJO) Task Force on July 1, 2013.BSISO Forecast Website :​​
Date : 2020.05.04
APCC Contributed to Improvement of the Long-term Climate Prediction Capability
APEC Climate Center (APCC) Contributed to improving the efficiency of Korea Meteorological Administration (KMA)'s long-term forecasting service by providing its knowledge and expertise in seasonal prediction.It also enhanced the long-term prediction reliability by improving the understanding of Korea's climate characteristics through the development of various climate contents and in-depth climate analysis.Firstly, APCC tried to improve the understanding of the physical characteristics of Korean heat waves according to the atmospheric circulation structure. Secondly, it analyzed the relationship between the fluctuation of summer precipitation in Korea and the subtropical high pressure in the Northwest Pacific as well as monthly extreme cases in summer and winter months.Thirdly, it also improved the understanding of weekly temperature fluctuation for Korean winter according to the combined effects of El Niño-Southern Oscillation and the Arctic Oscillation Index in the intra-seasonal prediction. Lastly, It developed statistical temperature prediction model based on APCC Multi-Model Ensemble (MME).In 2019, APCC also supported KMA's operation of the World Meteorological Organization Lead Center (WMOLC) and long-term forecasting by presenting monthly climate analysis results and attending discussions on 3-month climate prediction etc.Through these efforts, APCC has led the development of long-term forecasting capabilities at home and abroad, and contributed to the provision of high-quality long-term forecasting information services.
Date : 2020.03.19