Challenges in numerical weather prediction in coming 10 years

bk21eaa, 2017-04-11 15:58:47

조회 수
162
 세미나 연사 
홍성유 단장님(한국형수치예보모델개발사업단)
 세미나 장소 
과학관 553
 연도 
2017
 월 / 일 
4/18
 시간 
16:00

Title : Challenges in numerical weather prediction in coming 10 years


Abstract:

Currently, the typical resolution of the global atmospheric model for numerical weather prediction (NWP) at major operational centers is around tenth-kilometers, which should employ the parameterized precipitation processes. It is generally believed that we can take the parameterized precipitation algorithm out at the grid size less than 1 km, which may not be feasible in coming 10 years in global model community. Between the two regimes, the gray-zone precipitation physics is needed, which is smaller than the column physics, but still greater than the scale that can be explicitly resolved. For regional NWP, the resolution of models can be one-order higher than that of the global model. In this talk, we describe the advantages and disadvantages of high-resolution models for NWP, and possible efforts to overcome the major obstacles focusing on dynamical core and physical processes.


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