Back to Search
Start Over
A Fast Method for Calculation of Marine Gravity Anomaly
- Source :
- Applied Sciences, Volume 11, Issue 3, Applied Sciences, Vol 11, Iss 1265, p 1265 (2021)
- Publication Year :
- 2021
- Publisher :
- MDPI AG, 2021.
-
Abstract
- Gravity data have been playing an important role in marine exploration and research. However, obtaining gravity data over an extensive marine area is expensive and inefficient. In reality, marine gravity anomalies are usually calculated from satellite altimetry data. Over the years, numerous methods have been presented for achieving this purpose, most of which are time-consuming due to the integral calculation over a global region and the singularity problem. This paper proposes a fast method for the calculation of marine gravity anomalies. The proposed method introduces a novel scheme to solve the singularity problem and implements the parallel technique based on a graphics processing unit (GPU) for fast calculation. The details for the implementation of the proposed method are described, and it is tested using the geoid height undulation from the Earth Gravitational Model 2008 (EGM2008). The accuracy of the presented method is evaluated by comparing it with marine shipboard gravity data. Its efficiency is demonstrated through comparison with the conventional sequential method. The tests demonstrate that the proposed method can be employed for accurately calculating marine gravity anomalies and provides an advantage on computational efficiency.
- Subjects :
- Gravity (chemistry)
010504 meteorology & atmospheric sciences
Graphics processing unit
010502 geochemistry & geophysics
lcsh:Technology
01 natural sciences
GeneralLiterature_MISCELLANEOUS
Physics::Geophysics
lcsh:Chemistry
Gravitation
Singularity
Sequential method
the inverse Stokes formula method
marine gravity anomaly
General Materials Science
lcsh:QH301-705.5
Instrumentation
ComputingMethodologies_COMPUTERGRAPHICS
0105 earth and related environmental sciences
Fluid Flow and Transfer Processes
lcsh:T
Process Chemistry and Technology
General Engineering
Geoid height
Geodesy
lcsh:QC1-999
Computer Science Applications
Marine gravity
lcsh:Biology (General)
lcsh:QD1-999
lcsh:TA1-2040
Anomaly (physics)
lcsh:Engineering (General). Civil engineering (General)
lcsh:Physics
Geology
GPU parallel computing
Subjects
Details
- ISSN :
- 20763417
- Volume :
- 11
- Database :
- OpenAIRE
- Journal :
- Applied Sciences
- Accession number :
- edsair.doi.dedup.....cef20e621bef1f15449d1562eaf5f69b
- Full Text :
- https://doi.org/10.3390/app11031265