大气科学2016，Vol.40Issue(4)：730-742,13.DOI:10.3878/j.issn.1006-9895.1511.15170
空间加密探空观测资料对西南低涡暴雨天气过程数值模拟的影响
The Influence of Spatially Intensive Sounding Observation Data on the Numerical Modeling of Southwest Vortex Rainfall
摘要
Abstract
A regional-scale heavy rainfall process that occurred in the Sichuan area during 3–4 July 2012 was simulated <br> by the Advanced Regional Eta Model, forced by first-hand data obtained from the Intensive Observation Scientific Experiment of the Southwest vortex. Results show that: (1) The distribution of the rain belt was determined by the moving path of the Southwest vortex; different initial conditions lead to a strong shift of the path in the spin-up processes, and then the large-scale circulation becomes important in regulating the movement and development of the vortex. (2) Four newly added sounding stations have impacts on all atmospheric fields; the largest differences occurred around these stations, and the largest deviations of the thermal and dynamical field were not consistent. The time series indicates that the impact of initial conditions is constrained at the beginning of the simulation, related to the model spin-up process. (3) The initial atmospheric circulation adjusted to the model spin-up process. Different initial conditions have impacts on the location and strength of the meso-small-scale vortex and forms a distinct initial state of the stable vortex. (4) The diversion, vorticity and vertical velocity corresponding to the vortex are tightly related; however, the evolutions of strength and height are not consistent.关键词
西南低涡/AREM(Advanced Regional Eta Model)模式/加密探空/初值/移动路径Key words
Southwest vortex/Advanced Regional Eta Model/Intensive sounding/Initial value/Movement path分类
大气科学引用本文复制引用
卢萍,李旭,李英,李跃清,郑伟鹏..空间加密探空观测资料对西南低涡暴雨天气过程数值模拟的影响[J].大气科学,2016,40(4):730-742,13.基金项目
公益性行业（气象）科研专项经费项目GYHY201206039，国家自然科学基金项目41275051、41405145，成都高原气象研究所开放实验室基金项目BROP201512@@@@Funded bySpecial Scientific Research Fund of Meteorological Public Welfare Profession of China (Grant GYHY201206039), National Natural Science Foundation of China (NSFC)(Grants 41275051,41405145), Laboratory Open Fund Project of Institute of Plateau Meteorology of Chengdu (Grant BROP201512) （Grant GYHY201206039）
