DOI: 10.1002/2016MS000826
Scopus记录号: 2-s2.0-85017508376
论文题名: Satellite radiance data assimilation for binary tropical cyclone cases over the western North Pacific
作者: Choi Y ; , Cha D ; -H ; , Lee M ; -I ; , Kim J ; , Jin C ; -S ; , Park S ; -H ; , Joh M ; -S
刊名: Journal of Advances in Modeling Earth Systems
ISSN: 19422466
出版年: 2017
卷: 9, 期: 2 起始页码: 832
结束页码: 853
语种: 英语
英文关键词: Bins
; Forecasting
; Hurricanes
; Satellites
; Storms
; Tropics
; Value engineering
; 3D-Var cycling
; Initialization methods
; Numerical weather prediction
; Radiance assimilation
; Satellite data assimilation
; Tropical cyclone
; Weather research and forecasting
; Western North Pacific
; Weather forecasting
; algorithm
; climate prediction
; data assimilation
; satellite data
; three-dimensional modeling
; tropical cyclone
; Pacific Ocean
; Pacific Ocean (North)
英文摘要: A total of three binary tropical cyclone (TC) cases over the Western North Pacific are selected to investigate the effects of satellite radiance data assimilation on analyses and forecasts of binary TCs. Two parallel cycling experiments with a 6 h interval are performed for each binary TC case, and the difference between the two experiments is whether satellite radiance observations are assimilated. Satellite radiance observations are assimilated using the Weather Research and Forecasting Data Assimilation (WRFDA)'s three-dimensional variational (3D-Var) system, which includes the observation operator, quality control procedures, and bias correction algorithm for radiance observations. On average, radiance assimilation results in slight improvements of environmental fields and track forecasts of binary TC cases, but the detailed effects vary with the case. When there is no direct interaction between binary TCs, radiance assimilation leads to better depictions of environmental fields, and finally it results in improved track forecasts. However, positive effects of radiance assimilation on track forecasts can be reduced when there exists a direct interaction between binary TCs and intensities/structures of binary TCs are not represented well. An initialization method (e.g., dynamic initialization) combined with radiance assimilation and/or more advanced DA techniques (e.g., hybrid method) can be considered to overcome these limitations. © 2017. The Authors. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75780
Appears in Collections: 影响、适应和脆弱性 气候变化与战略
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作者单位: School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology, Ulsan, South Korea; National Center for Atmospheric Research, Boulder, CO, United States; Department of Atmospheric Sciences, Kongju National University, Gongju, South Korea; Environmental Modeling Center, NOAA/NWS/NCEP, College Park, MD, United States; Department of Atmospheric Sciences, Yonsei University, Seoul, South Korea; Korea Institute of Science and Technology Information, Daejeon, South Korea
Recommended Citation:
Choi Y,, Cha D,-H,et al. Satellite radiance data assimilation for binary tropical cyclone cases over the western North Pacific[J]. Journal of Advances in Modeling Earth Systems,2017-01-01,9(2)