Abstract Approximations based on Chebyshev polynomials have several astrodynamic applications. The performance of these approximations can be improved by parallel implementations exploiting architectures, such as OpenMP and CUDA. In this paper, we introduce the implementation to two first is gravitational finite element model (FEM): a piecewise approximation that replaces high degree order sphe...

Advanced satellite geodetic systems have contributed to improving knowledge on changes in global gravity fields recent years. These offer profound opportunities the determination of a high-precision, high-resolution gravimetric geoid models data deficient regions. However, due absence research competence some regions, these conventional datasets not been implemented update obsolete reference fr...

This paper examines spatial variations in the geomorphology of Ninety East Ridge (NER), located Indian Ocean. The NER is an extraordinary long linear bathymetric feature with topography reflecting complex geophysical setting and geologic evolution. research based on a compilation high-resolution bathymetric, geological, gravity datasets clipped for study area extent (65° - 107°E, 35°S 21°N): Ge...

AUSGeoid09 is the new Australia-wide gravimetric quasigeoid model that has been a posteriori fitted to the Australian Height Datum (AHD) so as to provide a product that is practically useful for the more direct determination of AHD heights from Global Navigation Satellite Systems (GNSS). This approach is necessary because the AHD is predominantly a third-order vertical datum that contains a ~1 ...

SUMMARY Mount Kilimanjaro, located in Tanzania, is the highest mountain in Africa. Furthermore, this dormant volcano is the highest " stand-alone " (it has an almost perfectly shaped volcano form) and " walkable " (it is not necessary to use special climbing equipment) mountain in the world. Located on the plate boundary between Somalia and Victoria tectonic blocks, Mount Kilimanjaro started to...

Lake water height is a key variable in cycle and climate change studies, which achievable using satellite altimetry constellation. A method based on data processing of from several satellites has been developed to interpolate mean lake surface (MLS) over set 22 big lakes distributed the Earth. It applied nadir radar altimeters Low Resolution Mode (LRM: Jason-3, Saral/AltiKa, CryoSat-2) Syntheti...

the targeted area of this research includes e anatoly, nw zagros, and caucasus. these structures are known as a complex and active area and in the early stage of continent-continent collision, which give us unique possibility to monitor such collision in real time. therefore, it is very important to study this active area to have a better knowledge about its tectonic behavior and lithospheric s...

various sources of geodetic, geological and geophysical information can improve our understanding about the crustal density. in this paper we propose a methodology for determination of crustal density based on terrestrial gravity observations, geopotential models, digital terrain models (dtm), geological maps and cross-sections, deep geophysical profiles, and geoid models. the method can be alg...