Details

Autor(en) / Beteiligte

• Li, ChunLai
• Ren, Xin
• Liu, JianJun
• Zou, XiaoDuan
• Mu, LingLi
• Wang, JianYu
• Shu, Rong
• Zou, YongLiao
• Zhang, HongBo
• Lü, Chang
• Liu, JianZhong
• Zuo, Wei
• Su, Yan
• Wen, WeiBin
• Bian, Wei
• Wang, Min
• Xu, Chun
• Kong, DeQing
• Wang, XiaoQian
• Wang, Fang
• Geng, Liang
• Zhang, ZhouBin
• Zheng, Lei
• Zhu, XinYing
• Li, JunDuo
• Ouyang, ZiYuan

Titel

Laser altimetry data of Chang’E-1 and the global lunar DEM model

Ist Teil von

• Science China. Earth sciences, 2010-11, Vol.53 (11), p.1582-1593

Ort / Verlag

Heidelberg: SP Science China Press

Erscheinungsjahr

2010

Quelle

SpringerLink

Beschreibungen/Notizen

• The Laser AltiMeter (LAM), as one of the main payloads of Chang’E-1 probe, is used to measure the topography of the lunar surface. It performed the first measurement at 02:22 on November 28th, 2007. Up to December 4th 2008, the total number of measurements was approximately 9.12 million, covering the whole surface of the Moon. Using the LAM data, we constructed a global lunar Digtal Elevation Model (DEM) with 3 km spatial resolution. The model shows pronounced morphological characteristics, legible and vivid details of the lunar surface. The plane positioning accuracy of the DEM is 445 m (1 σ ), and the vertical accuracy is 60 m (1 σ ). From this DEM model, we measured the full range of the altitude difference on the lunar surface, which is about 19.807 km. The highest point is 10.629 km high, on a peak between crater Korolev and crater Dirichlet-Jackson at (158.656°W, 5.441°N) and the lowest point is −9.178 km in height, inside crater Antoniadi (172.413°W, 70.368°S) in the South Pole-Aitken Basin. By comparison, the DEM model of Chang’E-1 is better than the USA ULCN2005 in accuracy and resolution and is probably identical to the DEM of Japan SELENE, but the DEM of Chang’E-1 reveals a new lowest point, clearly lower than that of SELENE.