摘要
文章从理论上分析了多普勒雷达资料的四维同化。阐述多普勒雷达资料四维同化的主要过程及其基本思路。着重论述多普勒雷达资料四维变分分析系统 ( 4D VDRAS)的原理和方法 ,以及价值函数 ,共轭方程、伴随方程和多普勒雷达数据处理、Barnes插值技术和 4D
The four-dimensional variational assimilation of Doppler-radar data (4DVAR) in theory was analyzed. Its main course and basic ideas were discussed. Then the four-dimensional variational Dopple radar analysis system (4D-VDRAS) was emphasized, the cost function was defined, and conjugate formulate and simple adjoint were applied to educe its minimum. In addition, radar data disposing and Barnes insert technique were introduced. The application of 4D-VDRAS was discussed.
出处
《应用气象学报》
CSCD
北大核心
2004年第1期95-110,共16页
Journal of Applied Meteorological Science
基金
国家自然科学基金 40 3 75 0 0 6面上项目资助
