High-resolution Local Gravity Model of the South Pole of the Moon from GRAIL Extended Mission Data
We estimated a high-resolution local gravity field model over the south pole of the Moon using data from the Gravity Recovery and Interior Laboratory's extended mission. Our solution consists of adjustments with respect to a global model expressed in spherical harmonics. The adjustments are exp...
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ftnasantrs:oai:casi.ntrs.nasa.gov:20140016840 2023-05-15T18:21:50+02:00 High-resolution Local Gravity Model of the South Pole of the Moon from GRAIL Extended Mission Data Zuber, Maria T. Mazarico, Erwan Goossens, Sander Johannes Sabaka, Terence J. Nicholas, Joseph B. Rowlands, David D. Lemoine, Frank G. Smith, David E. Neumann, Gregory A. Unclassified, Unlimited, Publicly available December 15, 2014 application/pdf http://hdl.handle.net/2060/20140016840 unknown Document ID: 20140016840 http://hdl.handle.net/2060/20140016840 Copyright, Distribution as joint owner in the copyright CASI Lunar and Planetary Science and Exploration Geophysics GSFC-E-DAA-TN15341 AGU Fall Meeting 2014; 15-19 Dec. 2014; San Francisco, CA; United States 2014 ftnasantrs 2019-07-21T00:22:21Z We estimated a high-resolution local gravity field model over the south pole of the Moon using data from the Gravity Recovery and Interior Laboratory's extended mission. Our solution consists of adjustments with respect to a global model expressed in spherical harmonics. The adjustments are expressed as gridded gravity anomalies with a resolution of 1/6deg by 1/6deg (equivalent to that of a degree and order 1080 model in spherical harmonics), covering a cap over the south pole with a radius of 40deg. The gravity anomalies have been estimated from a short-arc analysis using only Ka-band range-rate (KBRR) data over the area of interest. We apply a neighbor-smoothing constraint to our solution. Our local model removes striping present in the global model; it reduces the misfit to the KBRR data and improves correlations with topography to higher degrees than current global models. Other/Unknown Material South pole NASA Technical Reports Server (NTRS) South Pole |
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Open Polar |
collection |
NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
unknown |
topic |
Lunar and Planetary Science and Exploration Geophysics |
spellingShingle |
Lunar and Planetary Science and Exploration Geophysics Zuber, Maria T. Mazarico, Erwan Goossens, Sander Johannes Sabaka, Terence J. Nicholas, Joseph B. Rowlands, David D. Lemoine, Frank G. Smith, David E. Neumann, Gregory A. High-resolution Local Gravity Model of the South Pole of the Moon from GRAIL Extended Mission Data |
topic_facet |
Lunar and Planetary Science and Exploration Geophysics |
description |
We estimated a high-resolution local gravity field model over the south pole of the Moon using data from the Gravity Recovery and Interior Laboratory's extended mission. Our solution consists of adjustments with respect to a global model expressed in spherical harmonics. The adjustments are expressed as gridded gravity anomalies with a resolution of 1/6deg by 1/6deg (equivalent to that of a degree and order 1080 model in spherical harmonics), covering a cap over the south pole with a radius of 40deg. The gravity anomalies have been estimated from a short-arc analysis using only Ka-band range-rate (KBRR) data over the area of interest. We apply a neighbor-smoothing constraint to our solution. Our local model removes striping present in the global model; it reduces the misfit to the KBRR data and improves correlations with topography to higher degrees than current global models. |
format |
Other/Unknown Material |
author |
Zuber, Maria T. Mazarico, Erwan Goossens, Sander Johannes Sabaka, Terence J. Nicholas, Joseph B. Rowlands, David D. Lemoine, Frank G. Smith, David E. Neumann, Gregory A. |
author_facet |
Zuber, Maria T. Mazarico, Erwan Goossens, Sander Johannes Sabaka, Terence J. Nicholas, Joseph B. Rowlands, David D. Lemoine, Frank G. Smith, David E. Neumann, Gregory A. |
author_sort |
Zuber, Maria T. |
title |
High-resolution Local Gravity Model of the South Pole of the Moon from GRAIL Extended Mission Data |
title_short |
High-resolution Local Gravity Model of the South Pole of the Moon from GRAIL Extended Mission Data |
title_full |
High-resolution Local Gravity Model of the South Pole of the Moon from GRAIL Extended Mission Data |
title_fullStr |
High-resolution Local Gravity Model of the South Pole of the Moon from GRAIL Extended Mission Data |
title_full_unstemmed |
High-resolution Local Gravity Model of the South Pole of the Moon from GRAIL Extended Mission Data |
title_sort |
high-resolution local gravity model of the south pole of the moon from grail extended mission data |
publishDate |
2014 |
url |
http://hdl.handle.net/2060/20140016840 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
CASI |
op_relation |
Document ID: 20140016840 http://hdl.handle.net/2060/20140016840 |
op_rights |
Copyright, Distribution as joint owner in the copyright |
_version_ |
1766201158847692800 |