云南高校图书馆联盟文献共享服务平台- OCCULTATION

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Research on internal gravity waves in the Martian atmosphere based on Tianwen-1 and Mars Global Surveyor occultation data: 《Earth and Planetary Physics》2024年第6期890-898,共9页Luo Xiao CunYing Xiao Xiong Hu ZeWei Wang XiaoQi Wu; National Natural Science Foundation of China(Grant Nos.42174192,12241101,and 91952111).; Internal gravity waves(IGWs)are critical in driving Martian atmospheric motion and phenomena.This study investigates Martian IGWs by using high-resolution data from China’s Tianwen-1 mission and the National Aeronaut...; 关键词：internal gravity waves MARS Tianwen-1 Mars Global Surveyor radio occultation

Retrieval of sea ice thickness using FY-3E/GNOS-II data: 《Satellite Navigation》2024年第3期269-281,共13页Yunjian Xie Qingyun Yan; funded by the National Natural Science Foundation of China under Grant 42001362.; Sea ice,a significant component in polar regions,plays a crucial role in climate change through its varying conditions.In Global Navigation Satellite System-Reflectometry(GNSS-R)studies,the observed surface reflectiv...; 关键词：Global navigation satellite system-reflectometry Sea ice thickness Fengyun-3E GNSS occultation sounder II(FY-3E/GNOS-ll) Soil moisture ocean salinity

Exploring Greenhouse Gases Water and Climate Changes:Scientific Opportunities for the Climate and Atmospheric Composition Exploring Satellites Mission被引量：2: 《空间科学学报》2020年第2期151-168,共18页LIU Congliang KIRCHENGAST Gottfried SUN Yueqiang WANG Xin LU Daren BAI Weihua DU Qifei LOSCHER Armin SYNDERGAARD Stig TIAN Longfei ZHANG Zhihua; Supported by the National Natural Science Foundation of China(41775034,41606206);the Strategic Priority Research Program of Chinese Academy of Sciences(XDA15012300)。; The Essential Climate Variables(ECVs),such as the atmospheric thermodynamic state variables and greenhouse gases,play an important role in the atmosphere physical processes and global climate change.Given the need of ...; 关键词：CLIMATE Greenhouse gases WATER Microwave OCCULTATION INFRARED-LASER OCCULTATION

Verification of Fengyun-3D MWTS and MWHS Calibration Accuracy Using GPS Radio Occultation Data被引量：2: 《Journal of Meteorological Research》2019年第4期695-704,共10页Xueyan HOU Yang HAN Xiuqing HU Fuzhong WENG; Supported by the Chinese Academy of Meteorological Sciences Basic Research and Operation Fund(2018Y010);National Key Research and Development Program of China(2018YFC1506500);Fengyun Satellite Meteorological Application System Project(FY3(02P)-MAS-1803); The newly launched Fengyun-3D(FY-3D)satellite carries microwave temperature sounder(MWTS)and microwave humidity sounder(MWHS),providing the global atmospheric temperature and humidity measurements.It is important to a...; 关键词：SATELLITES Fengyun SATELLITES MICROWAVE SOUNDING CROSS-CALIBRATION RADIO OCCULTATION

Variability of the Martian ionosphere from the MAVEN Radio Occultation Science Experiment被引量：3: 《Earth and Planetary Physics》2019年第4期283-289,共7页MeiJuan Yao Jun Cui XiaoShu Wu YingYing Huang WenRui Wang; support from the National Natural Science Foundation of China (NSFC) through grant numbers 41525015 and 41774186; The Martian ionosphere is produced by a number of controlling processes, including solar extreme ultraviolet radiation (EUV) and X-ray ionization, impact ionization by precipitating electrons, and day-to-night transpo...; 关键词：MARS PLANETARY IONOSPHERES radio OCCULTATION

Complexity estimation of image sequence for automatic target track: 《Journal of Systems Engineering and Electronics》2019年第4期672-683,共12页WANG Xiaotian ZHANG Kai YAN Jie; supported by the National Natural Science Foundation of China(61703337);Shanghai Aerospace Science and Technology Innovation Fund(SAST2017-082); In the field of automatic target recognition and tracking,traditional image complexity metrics,such as statistical variance and signal-to-noise ratio,all focus on single-frame images.However,there are few researches a...; 关键词：COMPLEXITY of image sequence FEATURE SPACE similarity DEGREE of global background(FSSDGB) FEATURE SPACE OCCULTATION DEGREE of local background(FSODLB) grey relational method nonlinear transformation based on median(NTM)

Analysis of GNSS radio occultation data from satellite ZH-01被引量：2: 《Earth and Planetary Physics》2018年第6期499-504,共6页Yan Cheng Jian Lin XuHui Shen Xiang Wan XinXing Li WenJun Wang; The electromagnetic satellite Zhangheng 01(ZH-01) was successfully launched on February 2, 2018. The GNSS Radio Occultation(GRO) receiver on board the satellite is able to observe the occultation events of GPS and Bei...; 关键词：ZH-01 GRO occultation ionosphere inversion DIGISONDE

The Spatial and Temporal Variability of Global Stratospheric GravityWaves and Their Activity during Sudden StratosphericWarming Revealed by COSMIC Measurements被引量：1: 《Advances in Atmospheric Sciences》2018年第12期1533-1546,共14页Xiaohua XU Daocheng YU Jia LUO; supported by the National Natural Science Foundation of China (Grant Nos.41774033 and 41774032); This study investigates the spatial and temporal variability of global stratospheric gravity waves(GWs) and the characteristics of GW activity during sudden stratospheric warming(SSW) using the GPS radio occultation m...; 关键词：STRATOSPHERIC gravity waves GPS radio OCCULTATION COSMIC potential energy SUDDEN STRATOSPHERIC WARMING

Optimization of the Mars ionospheric radio occultation retrieval被引量：1: 《Earth and Planetary Physics》2018年第4期292-302,共11页JunYi Wang XinAn Yue Yong Wei WeiXing Wan; support by the Thousand Young Talent Program of China;funded by the National Science Foundation of China (41661164034, 41525016); Electron density is a key parameter to characterize Martian ionospheric structure and dynamics. Based on the ephemeris and auxiliary information derived from the Spacecraft, Planet, Instruments, C-matrix, and Events(S...; 关键词：MARS IONOSPHERE RADIO OCCULTATION electron density

A Novel Tool for the Determination of Tropopause Heights by Using GNSS Radio Occultation Data: 《Atmospheric and Climate Sciences》2017年第3期301-313,共13页Francesco Vespe Rosa Pacione Elisa Rosciano; The tropopause is a transitional layer between the troposphere and the stratosphere. The exchange of chemical constituents of the atmosphere (namely masses of air, water vapor, trace gases etc.) and energy between the...; 关键词：TROPOPAUSE RADIO OCCULTATION Global NAVIGATION Satellite Systems ATMOSPHERE PHYSICS

OCCULTATION