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Accuracy assessment of lunar topography models

Fok, H.S. und Shum, C.K. und Yuchan, Yi. und Araki, H. und Ping, J. und Williams, J.G. und Fotopoulos, G. und Noda, H. und Goossens, S. und Huang, Q. und Ishihara, Y. und Matsumoto, K. und Oberst, J. und Sasaki, S. (2011) Accuracy assessment of lunar topography models. Earth Planets and Space, 63 (1), Seiten 15-23. Terrapub. DOI: 10.5047/eps.2010.08.005. ISSN 1343-8832.

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Offizielle URL: http://www.terrapub.co.jp

Kurzfassung

Both the Chang'E-1 and SELenological and ENgineering Explorer (SELENE) lunar missions, launched in 2007, provide an opportunity for significant advances in lunar science. In particular, both orbiters provide refined lunar topography models with unprecedented finer resolution and improved accuracy, especially for the far side and the polar areas of the Moon where fewer valid measurements have been available to date. An evaluation of the derived topography models is essential for the improved interpretation of selenophysics, including a knowledge of the interior of the Moon. This study provides both external and internal accuracy assessments for the derived topographic models (note that different data sets are used, albeit independent). The external comparison, which consists of comparing the topographic models with landmarks established with lunar laser ranging and radio tracking, yields an accuracy estimate of 157 m for the Change'E-1 model and 58 m for the SELENE model (150 m and 55 m if the newly recovered Lunakhod-1 site is included). The internal comparison, consisting of crossover analysis of the altimeter data after the removal of once-per-orbital-revolution errors, yields an accuracy estimate of 206 m and 68 m, respectively. These comparisons allow the establishment of conservative estimates of accuracy of 200 m and 70 m for the Chang'E-1 and SELENE models, respectively. Given the conservative estimates on the accuracy, both models yield significant improvement by factors of 2.5 and 8, respectively, when compared with a contemporary lunar topography model, i.e., the Unified Lunar Control Network 2005 (ULCN2005).

Dokumentart:Zeitschriftenbeitrag
Titel:Accuracy assessment of lunar topography models
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Fok, H.S.Geodetic Science, School of Earth Sciences, The Ohio State University, 125 South Oval Mall, 275 Mendenhall Lab., Columbus, OH 43210, USA
Shum, C.K.Geodetic Science, School of Earth Sciences, The Ohio State University, 125 South Oval Mall, 275 Mendenhall Lab., Columbus, OH 43210, USA
Yuchan, Yi.Geodetic Science, School of Earth Sciences, The Ohio State University, 125 South Oval Mall, 275 Mendenhall Lab., Columbus, OH 43210, USA
Araki, H.RISE Project, National Astronomical Observatory of Japan, 2-12, Hoshigaoka, Mizusawa, Oshu, Iwate 023-0861, Japan
Ping, J.Shanghai Astronomical Observatory, Chinese Academy of Sciences, Nandan Road 80, Shanghai, China, 200030
Williams, J.G.Jet Propulsion Laboratory, California Institute of Technology, MS 238-600, 4800 Oak Grove Drive, Pasadena, CA, 91109, USA
Fotopoulos, G.Dept. of Geosciences, The University of Texas at Dallas, 800 West Campbell Rd, Richardson, TX 75080-3021, USA
Noda, H.RISE Project, National Astronomical Observatory of Japan, 2-12, Hoshigaoka, Mizusawa, Oshu, Iwate 023-0861, Japan
Goossens, S.RISE Project, National Astronomical Observatory of Japan, 2-12, Hoshigaoka, Mizusawa, Oshu, Iwate 023-0861, Japan
Huang, Q.Shanghai Astronomical Observatory, Chinese Academy of Sciences, Nandan Road 80, Shanghai, China, 200030
Ishihara, Y.RISE Project, National Astronomical Observatory of Japan, 2-12, Hoshigaoka, Mizusawa, Oshu, Iwate 023-0861, Japan
Matsumoto, K.RISE Project, National Astronomical Observatory of Japan, 2-12, Hoshigaoka, Mizusawa, Oshu, Iwate 023-0861, Japan
Oberst, J.juergen.oberst@dlr.de
Sasaki, S.RISE Project, National Astronomical Observatory of Japan, 2-12, Hoshigaoka, Mizusawa, Oshu, Iwate 023-0861, Japan
Datum:21 Februar 2011
Erschienen in:Earth Planets and Space
Referierte Publikation:Ja
In SCOPUS:Ja
In ISI Web of Science:Nein
Band:63
DOI :10.5047/eps.2010.08.005
Seitenbereich:Seiten 15-23
Verlag:Terrapub
ISSN:1343-8832
Status:veröffentlicht
Stichwörter:Accuracy assessment, lunar topography, selenodesy, Chang'E-1, SELENE
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W EW - Erforschung des Weltraums
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W EW - Erforschung des Weltraums
DLR - Teilgebiet (Projekt, Vorhaben):W - Vorhaben Exploration des Sonnensystems (alt)
Standort: Berlin-Adlershof
Institute & Einrichtungen:Institut für Planetenforschung > Planetengeodäsie
Hinterlegt von: Marita Wählisch
Hinterlegt am:17 Nov 2011 12:52
Letzte Änderung:22 Apr 2014 03:05

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