Perturbations in Earth’s Atmosphere over An Indian Region during the Total Solar Eclipse on 22 July 2009

作     者：S.B.Surendra PRASAD Vinay KUMAR K.Krishna REDDY S.K.DHAKA Shristy MALIK M.Venkatarami REDDY U.Murali KRISHNA 

作者机构：Semi-arid-zone Atmospheric Research Centre(SARC)Department of PhysicsYogi Vemana UniversityKadapaAndhra Pradesh 516003India Radio and Atmospheric Physics LabRajdhani CollegeUniversity of DelhiDelhi 110015India Department of Applied PhysicsDelhi Technical UniversityDelhi 110042India 

出 版 物：《Journal of Meteorological Research》 (气象学报（英文版）)

年 卷 期：2019年第33卷第4期

页      面：784-796页

核心收录：

学科分类：07[理学] 070601[理学-气象学] 0706[理学-大气科学] 

基　　金：ISRO  Govt. of India for providing the financial support through research fellowships to carry out this study 

主　　题：total solar eclipse (TSE) atmospheric perturbations tropopause dynamics COSMIC/FORMOSAT-3satellite radio occultation (RO) observations 

摘      要：During a total solar eclipse(TSE)on 22 July 2009,atmospheric perturbations were monitored from the surface to thermosphere to understand TSE’s impact on the meteorological(temperature,relative humidity,wind speed,and wind direction)and chemical(O3 and NOx)parameters around Kadapa(14.28°N,78.42°E),a tropical semi-arid region of *** this purpose,an experiment was conducted at Yogi Vemana University Campus,Kadapa,India,to measure the temperature,wind speed,wind direction,and concentrations of ozone(O3),NO,NO2,and NOx by using the automatic weather station(AWS)and O3 *** the eclipse day(22 July 2009),the surface observations at Kadapa showed a reduction in temperature(about 1.1℃)because of the solar *** of the thermal,dynamical(wind),and chemical parameters on the TSE day with control days[preceding(21 July 2009)and succeeding(23 July 2009)the TSE]illustrated the influence of solar *** the eclipse period,the O3 mixing ratio decreased,while NO2 and NOx increased;however,NO remained *** addition,radio occultation(RO)temperature profiles from Constellation Observing System for Meteorology,Ionosphere,and Climate(COSMIC)/Formosat Satellite Mission(FORMOSAT-3)and Thermosphere,Ionosphere,and Mesosphere Energetics and Dynamics(TIMED)satellites were utilized to understand the impact of TSE on dynamics of the middle and upper atmosphere from tropopause to the *** vertical resolution COSMIC observations revealed that during the solar eclipse,tropopause was cooler with twin peaks(double tropopause).The lower thermosphere between 110 and 130 km became warmer during the TSE,which might be caused by the dynamical response of the atmosphere in this region to the solar *** experimental data have provided very fine-scale variations of the atmospheric parameters both in time and height and also constituted a new set of results on TSE for further research.