COMPARISON OF GRAVITY FILED MODELS BASED ON GOCE DATAS
1）Earthquake Administration of Shaanxi Province，Xi’an 710068
Abstract The precision of gravity filed models established on GOCE data were compared and analysed according to geoid errors degree variances and degree variances of potential coefficient.The results indicate that：1）The precision of GOCEonly models is an order of magnitude higher than GRACEonly models，between 150 and 180 degree.2）The accuracy of gravity filed models which based on direct approach is highest，followed by timewise approach and the minimum is spacewise approach.3）At present，the maximum degree of earth gravity filed models which derived from GOCE datas is 250 and the accumulative geoid errors degree variances at 250 degree is about 14.7 cm.
Key words ：
GOCE
GRACE
gravity filed models
potential coefficient
degree variances
Received: 12 October 2013
Published: 09 December 2014
Cite this article:
Zheng Zengji,Cao Jianping,Fan Lihong et al. COMPARISON OF GRAVITY FILED MODELS BASED ON GOCE DATAS[J]. jgg, 2014, 34(6): 109-113.
Zheng Zengji,Cao Jianping,Fan Lihong et al. COMPARISON OF GRAVITY FILED MODELS BASED ON GOCE DATAS[J]. jgg, 2014, 34(6): 109-113.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2014/V34/I6/109
[1]
XUAN Jianhao,CHEN Zhiwei,ZHANG Xingfu,LIANG Chenghao,WU Bo. Combining GRACE and GRACE-FO to Derive Terrestrial Water Storage Changes in the Yangtze River Basin from 2002 to 2020
[2]
LI Wanqiu,WANG Wei,ZHANG Chuanyin,DONG Jie,LIU Huanling. Influence of Regional Crustal Structure Differences on GRACE-FO Inversion of Vertical Deformation of Terrestrial Water Load in China in the Last 10 Months
[3]
YAO Zhiwei,CHEN Yu. Time Series Forecasting of Equivalent Water Height and Surface Displacements from GRACE Using Deep Neural Networks
[4]
WANG Jielong,CHEN Yi. Drought Detection over Yangtze River Basin from GRACE Time-Variable Gravity Data
[5]
CHEN Fang, LIU Suihua, RUAN Ou, LUO Jie. Monitor and Analyze the Drought Characteristics of Guizhou Based on GRACE Gravity Satellite Data
[6]
GONG Jiabo,ZHOU Xingyu,CHEN Yan,ZHANG Mingyuan. Precision Analysis on Reduced-Dynamic Orbit Determination of GRACE-FO Satellite with Ambiguity Resolution
[7]
LIU Jie,XU Keke,FANG Jian,ZHANG Weimin,DU Zongliang. Analysis of Crustal Deformation in the Southern Margin of the Qinghai-Tibet Plateau Based on Modern Geodetic Techniques
[8]
NIU Hanhan,WANG Changqing,ZHONG Min,YAN Yihao,LIANG Lei. Research on Calibration Method of GRACE-FO Accelerometer
[9]
ZHANG Suxiang,SHENG Shuzhong,ZHOU Xin. The Coseismic Gravity Field Variations of Megathrust Earthquakes in the Subduction Zone Measured by Gravity Satellite
[10]
.
[11]
GUO Feixiao, GU Yanchao, CUI Yang, SUN Zhongmiao. Analysis of Vertical Deformation in Shaanxi-Gansu-Ningxia Area by GPS and GRACE Data
[12]
WANG Tongqing, ZHANG Lei, ZHU Chuandong, ZHANG Pin. Characteristics of Long-Term Gravity Variation at Jixian Datum Station
[13]
GUO Feixiao，SUN Zhongmiao， REN Feilong，XIAO Yun. Preliminary Comparative Analysis of GRACE RL06 and RL05 Time-Variable Gravity Models
[14]
CHEN Zhiwei, ZHANG Xingfu, RAN Jiangjun, HU Bo, ZHOU Boyang. Terrestrial Water Storage Changes in Pearl River Region Derived from the Latest Release Temporal Gravity Field Models
[15]
WANG Hansheng,ZHANG Huitong,XIANG Longwei,JIANG Liming,SHEN Qiang,STEFFEN Holger. Effects of Climatic Factors on the Mass Balance from 2003 to 2017 in High Mountain Asia and Adjacent Areas
