GLD100: The near-global lunar 100 m raster DTM from LROC WAC stereo image data

F. Scholten, J. Oberst, K. D. Matz, T. Roatsch, M. Wählisch, E. J. Speyerer, Mark Robinson

Research output: Contribution to journalArticlepeer-review

205 Scopus citations


We derived near-global lunar topography from stereo image data acquired by the Wide-angle Camera (WAC) of the Lunar Reconnaissance Orbiter Camera (LROC) system. From polar orbit tracks, the LROC WAC provides image data with a mean ground resolution at nadir of 75 m/pixel with substantial cross-track stereo overlap. WAC stereo images from the one-year nominal mission and the first months of the science mission phase are combined to produce a near-global digital terrain model (DTM) with a pixel spacing of 100 m, the Global Lunar DTM 100 m, or "GLD100." It covers 79S to 79N latitudes, 98.2% of the entire lunar surface. We compare the GLD100 with results from previous stereo and altimetry-based products, particularly with the Lunar Orbiter Laser Altimeter (LOLA) altimetry, which is the current topographic reference for the Moon. We describe typical characteristics of the GLD100 and, based upon the comparison to the LOLA data set, assess its vertical and lateral resolution and accuracy. We conclude that the introduced first version of the stereo-based GLD100 is a valuable topographic representation of the lunar surface, complementary to the LOLA altimetry data set. Further improvements can be expected from continuative investigations.

Original languageEnglish (US)
Article numberE00H17
JournalJournal of Geophysical Research: Planets
Issue number3
StatePublished - 2012

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geophysics
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science


Dive into the research topics of 'GLD100: The near-global lunar 100 m raster DTM from LROC WAC stereo image data'. Together they form a unique fingerprint.

Cite this