-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 of...
andbetterthanGOSGGEGMandEGM2008 , whileinAmericatheyarealmostthesame. InMaowusuareatheaccuracylevelofSGGGUGMG1derivedgravitydisturbanceisalmostatthesameaccuracylevelwithEGM2008andEIGENG6C4andbetterthanGOSGGEGMandEIGENG6C2.K Kee ywwo or rd d s : SGGGUGMG1 ; ultraGhighgravityfield model ; blockdiagonal...
This paper focuses on estimating a new high-resolution Earth's gravity field model named SGG-UGM-2 from satellite gravimetry, satellite altimetry, and Earth Gravitational Model 2008 (EGM2008)-derived gravity data based on the theory of the ellipsoidal harmonic analysis and coefficient transformation (...
The theory and methods of the determination of an ultra-high gravity field model by combination of satellite observation data and gravity anomaly data are studied.And an ultra-high gravity field model named SGG-UGM-1 is computed using EGM 2008 derived gravity anomaly and GOCE observation...
SGG-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 ...
本文研究了联合卫星观测数据和重力异常数据确定超高阶重力场模型的理论方法,并使用EGM2008模型重力异常和GOCE(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OpenMP技术引入到块对角最小二乘中以提高计算...
(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重力卫星...
This study presents a comprehensive analysis of the Garoua sedimentary basin (GSB) utilizing the high-resolution SGG-UGM-2 model, which offers a refined depiction of the Earth's gravity field. The primary objective was to elucidate the structural lineaments underpinning the basin....
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 ...
EGM2008重力场模型在构建时使用了精度较高且覆盖较全的地面重力数据集[8],本文使用其计算球面上的全球重力异常格网平均值,并联合该数据和GOCE卫星数据解算了2159阶次重力场模型SGG-UGM-1。 3.1 超高阶重力场模型解算的数据处理流程 本文构建超高阶重力场模型的解算流程如图 3所示,具体描述如下: ...