Published April 21, 2024
| Version v1
Dataset
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Ellipsoidal Harmonic Forward Model derived from Earth2014 topographies up to d/o 7200: EHFM_Earth_7200
Description
The model named EHFM_Earth_7200 was derived by layer-based forward modeling technique in ellipsoidal harmonics, the maximum degree of this model reaches 7200. The relief information was provided by Earth2014 relief model. EHFM_Earth_7200 provides very detailed (~3 km) information for the Earth’s short-scale gravity field, and it is expected to be able to augment or refine existing global gravity models. To meet the existing standard, here we provide spherical harmonic coefficients, which are transformed from original ellipsoidal harmonic coefficients.
Files
EHFM_Earth_7200.txt
Additional details
References
- Hirt C, Rexer M. (2015). Earth2014: 1 arc-min shape, topography, bedrock and ice-sheet models – Available as gridded data and degree-10,800 spherical harmonics. International Journal of Applied Earth Observation and Geoinformation, 39, 103-112. doi: 10.1016/j.jag.2015.03.001.
- Rexer M, Hirt C, Claessens S, Tenzer R. (2016). Layer-Based Modelling of the Earth's Gravitational Potential up to 10-km Scale in Spherical Harmonics in Spherical and Ellipsoidal Approximation. Surveys in Geophysics, 37, 1035-1074. doi: 10.1007/s10712-016-9382-2.
- Wang YM, Yang X. (2013). On the spherical and spheroidal harmonic expansion of the gravitational potential of the topographic masses. Journal of Geodesy, 87, 909-921. doi: 10.1007/s00190-013-0654-z.