-6C2, EIGEN-6C4, GOSG-EGM in frequency domain has been done, which shows that SGG-UGM-1 is close to the reference models and that the coefficients lower than degree 220 of SGG-UGM-1 are more accurate than that o...
检核结果表明,在中国区域,SGG-UGM-1模型大地水准面的精度在EIGEN-6C2和EIGEN-6C4两个模型之间,优于GOSG-EGM模型和EGM2008模型,与美国区域几个模型的精度相当.利用毛乌素测区的航空重力数据对几个模型进行了检核,结果表明SGG-UGM-1模型计算的重力扰动精度与EGM2008,EIGEN-6C4模型相当,优于GOSG-EGM模型和EIGEN-...
whileinAmericatheyarealmostthesame. InMaowusuareatheaccuracylevelofSGGGUGMG1derivedgravitydisturbanceisalmostatthesameaccuracylevelwithEGM2008andEIGENG6C4andbetterthanGOSGGEGMandEIGENG6C2.K Kee ywwo or rd d s : SGGGUGMG1 ; ultraGhighgravityfield model ; blockdiagonalleastsquaresmethod ; OpenMPparallelco...
(gravity field and ocean circulation explorer)观测数据构建了重力场模型SGG-UGM-1.重点研究了由球面格网重力异常快速构建超高阶重力场模型的块对角最小二乘方法,将Open MP技术引入到块对角最小二乘中以提高计算效率,并基于模拟数据验证了方法及算法和软件模块的正确性.采用本文制定的联合解算策略,利用GOCE...
UGM-2 together with other models,such as European improved gravity model of the earth by new techniques(EIGEN)-6C4,GECO,EGM2008,and SGG-UGM-1(the predecessor of SGG-UGM-2).Compared to other models,the model SGG-UGM-2 shows a promising performance in the GPS/leveling validation.All GOCE-...
关键词:SGG-UGM-1 超高阶重力场模型 块对角最小二乘方法 OpenMP并行计算 The Determination of an Ultra-high Gravity Field Model SGG-UGM-1 by Combining EGM2008 Gravity Anomaly and GOCE Observation Data LIANG Wei1 , XU Xinyu1,2 , LI Jiancheng1,2 , ZHU Guangbin3 ...
Finally, global positioning system (GPS)/leveling data in the mainland of China and the United States are used to validate SGG-UGM-2 together with other models, such as EIGEN-6C4, GECO, EGM2008 and SGG-UGM-1 (the predecessor of SGG-UGM-2). Compared to other models, the model SGG-...
The present study deals with mapping of the crustal structure over the Central Indian Ridge (CIR) covering 3°S–11°S using SGG-UGM-2 Free-air gravity data. We have discussed the importance of mantle temperature correction along with Bouguer, sediment thickness, and curvature corrections to ...