Patched Local Lunar Gravity Solutions Using GRAIL Data Article Swipe
Sander Goossens
,
Álvaro Fernández-Mora
,
E. R. Heijkoop
,
Terence J. Sabaka
·
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.13016/m2uhyv-eny1
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.13016/m2uhyv-eny1
We present a method to determine local gravity fields for the Moon using Gravity Recovery and Interior Laboratory (GRAIL) data. We express gravity as gridded gravity anomalies on a sphere, and we estimate adjustments to a background global start model expressed in spherical harmonics. We processed GRAIL Ka-band range-rate data with a short-arc approach, using only data over the area of interest. We determine our gravity solutions using neighbor smoothing constraints. We divided the entire Moon into 12 regions and 2 polar caps, with a resolution of urn:x-wiley:23335084:media:ess2987:ess2987-math-0001 (which is equivalent to degree and order 1199 in spherical harmonics), and determined the optimal smoothing parameter for each area by comparing localized correlations between gravity and topography for each solution set. Our selected areas share nodes with surrounding areas and they are overlapping. To mitigate boundary effects, we patch the solutions together by symmetrically omitting the boundary parts of overlapping solutions. Our new solution has been iterated, and it has improved correlations with topography when compared to a fully iterated global model. Our method requires fewer resources, and can easily handle regionally varying resolution or constraints. The smooth model describes small-scale features clearly, and can be used in local studies of the structure of the lunar crust.
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- Type
- article
- Language
- en
- Landing Page
- http://hdl.handle.net/11603/23239
- OA Status
- green
- Cited By
- 9
- References
- 77
- Related Works
- 10
- OpenAlex ID
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https://doi.org/10.13016/m2uhyv-eny1Digital Object Identifier
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Patched Local Lunar Gravity Solutions Using GRAIL DataWork title
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2021Year of publication
- Publication date
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2021-10-09Full publication date if available
- Authors
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Sander Goossens, Álvaro Fernández-Mora, E. R. Heijkoop, Terence J. SabakaList of authors in order
- Landing page
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https://hdl.handle.net/11603/23239Publisher landing page
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YesWhether a free full text is available
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greenOpen access status per OpenAlex
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https://hdl.handle.net/11603/23239Direct OA link when available
- Concepts
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Spherical harmonics, Geology, Boundary (topology), Smoothing, Geodesy, Gravity anomaly, Iterated function, Gravity model of trade, Geophysics, Physics, Geometry, Computer science, Mathematics, Mathematical analysis, Computer vision, Paleontology, Oil field, International trade, BusinessTop concepts (fields/topics) attached by OpenAlex
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9Total citation count in OpenAlex
- Citations by year (recent)
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2024: 7, 2022: 1, 2021: 1Per-year citation counts (last 5 years)
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10Other works algorithmically related by OpenAlex
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