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《Science of Surveying and Mapping》 2019-01
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Assessing the precision of global ionospheric grid at local time

HOU Weizhen;ZHANG Shaocheng;HUANG Longqiang;YIN Fei;Faculty of Information Engineering,China University of Geosciences;  
According to the problem that the accuracy of ionosphere(root mean square)issued by IGS existed difference due to solar radiation in different areas,the paper put forward a new mode basing at the local time to analysis the precision of ionosphere,through local time,ionospheric accuracy in the similar solar radiation conditions could be well analysed.The results showed that the precision of ionosphere affected obviously by the distribution of ground-based stations,on the high-density ground-based stations areas,the RMS were less influenced by the solar radiation,and even in the high solar radiation it could ensure preferably the precision;the RMS had bigger variation with the solar radiation in the sparse areas,the precision of ionosphere was poor.
【Fund】: 中央高校基本科研业务费专项资金资助项目(CUGL150839);; 国家自然科学青年基金项目(41504023)
【CateGory Index】: P228.4
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