大气科学2018，Vol.42Issue(2)：398-410,13.DOI:10.3878/j.issn.1006-9895.1709.17150
不同卫星微波遥感资料同化对台风路径模拟的影响
Effects of Assimilating Microwave Remote Sensing Data of Different Satellite on the Simulation of Typhoon Track
摘要
Abstract
In this study, AMSU-A (Advanced Microwave Sounding Unit-A) microwave remote sensing data of NOAA15, NOAA18, and NOAA19 are assimilated respectively and combinedly to simulate the super typhoon "Soudelor" (Number 13, 2015) using the WRF model and its 3DVar assimilation systems. The objective of the present study is to investigate the effects of assimilating the same type of microwave remote sensing data from different satellites on the simulation of typhoon track. The results demonstrate that assimilation of the same type of microwave remote sensing data from different satellites leads to different effects on the simulation of typhoon track. In this paper, the assimilation effect of NOAA15 is the best, followed by that of NOAA18, and the effect of NOAA19 data assimilation is the worst. Assimilating the AMSU-A data of NOAA15, NOAA18, and NOAA19 simultaneously didn't yield the best assimilation effect, whereas assimilating the AMSU-A data of combined NOAA15 and NOAA18 had the best assimilation effects. The above results indicate that assimilating observation data of more satellites doesn't necessarily lead to better assimilation effect. The increment fields at three different times in the assimilation experiments demonstrate that assimilating the same type of microwave remote sensing data from different satellites lead to different adjustments on physical fields, which correspond well to the adjustments on the simulation of typhoon track. Compared to the incremental structures of temperature, sea level pressure, geopotential height, and winds are more closely linked with the adjustment of the simulation of typhoon track.关键词
台风路径/数值模拟/同化/AMSU-A资料/增量场Key words
Typhoon track/Numerical simulation/Assimilation/AMSU-A data/Incremental field分类
天文与地球科学引用本文复制引用
王业桂,张斌,蔡其发,黄勇,兰伟仁..不同卫星微波遥感资料同化对台风路径模拟的影响[J].大气科学,2018,42(2):398-410,13.基金项目
国家自然科学基金项目41375105,National Natural Science Foundation of China (Grant 41375105) （Grant 41375105）
