青岛沿海ASCAT卫星反演风场与浮标海岛实测风场的对比分析  

Comparative Analysis of ASCAT Satellite Inversion Winds and Observed Winds from Buoy and Island Stations in Qingdao Coastal Area

作　　者：宫明晓 马艳 付业理 李华 Gong Mingxiao;Ma Yan;Fu Yeli;Li Hua(Jimo Meteorological Service,Shangdong,Jimo 266200;Qingdao Municipal Meteorological Disaster Prevention Engineering Technology Research Center,Shangdong,Qingdao 266003;Qingdao Meteorological Service,Shangdong,Qingdao 266003)

机构地区：[1]山东省青岛市即墨区气象局,青岛266200 [2]山东省青岛市气象灾害防御工程技术研究中心,青岛266003 [3]山东省青岛市气象台,青岛266003

出　　处：《气象科技》2019年第5期740-746,共7页Meteorological Science and Technology

基　　金：山东省气象局气象科学技术研究项目青年专项（sdqd2017-06）资助

摘　　要：本文通过对比检验2013年1月至2016年6月ASCAT卫星反演风场与青岛浮标海岛站实测10m风场资料,开展ASCAT卫星反演风场在青岛沿海的适用评估。结果表明:ASCAT反演风速整体偏大,风向偏左,但整体偏差均较小。ASCAT反演风场和浮标海岛站实测风场的风速和风向的整体偏差分别为1.6m/s和-9.6°,说明ASCAT反演风场在青岛沿岸有很好的适用性,比EC再分析资料能更细致地反映青岛沿岸的风场空间分布。从风速分级比较来看,风速越弱,卫星反演风速越接近站点实测风速,反演结果越好,而风向反演结果则反之。风速和风向的反演效果皆是晚上比早晨好。并且季节变化对风速反演效果影响不大,但是对风向反演效果有一定的影响,秋冬季节风向反演结果好于春夏季节。最后,对ASCAT反演风速分别进行线性回归订正、综合误差、风速等级误差和升降轨误差订正,发现线性回归订正结果最佳。To measure the applicability of 10-m wind field data inverted by ASCAT in Qingdao,we compare the differences between ASCAT coastal wind products and observed 10-m wind field data from buoy and island stations.The analysis results show that the ASCAT inversion wind speed is larger and the wind direction is more left than observed wind from buoy and island stations,but the deviation is small.The deviations of the wind speed and wind direction of the ASCAT inversion wind field and the observed wind are 1.6 m/s and-9.6°,respectively.The ASCAT inversion wind field has good applicability in the coastal area of Qingdao,and a more detailed wind field space along the coast of Qingdao.From the comparison of wind speed grading,the weaker the wind speed,the better the satellite inversion wind speed result,and the wind direction is the opposite.The inversion of wind speed and wind direction is better in the evening than in the morning.Seasonal changes have little effect on wind speed inversion,but have a certain impact on wind direction inversion.The wind direction inversion results in autumn and winter are better than in spring and summer.The linear regression correction,comprehensive error,wind speed level error and lifting rail error correction were performed for the ASCAT inversion wind speed,and the linear regression correction result was found to be the best.

关 键 词：ASCAT卫星 青岛沿岸 海洋风场 

分 类 号：P405[天文地球—大气科学及气象学]