Initial results for the north pole of the Moon from Mini-SAR, Chandrayaan-1 mission

被引：145

作者：

Spudis, P. D. ^{[1
]}

Bussey, D. B. J. ^{[2
]}

Baloga, S. M. ^{[3
]}

Butler, B. J. ^{[4
]}

Carl, D. ^{[2
]}

Carter, L. M. ^{[5
]}

Chakraborty, M. ^{[6
]}

Elphic, R. C. ^{[7
]}

Gillis-Davis, J. J. ^{[8
]}

Goswami, J. N. ^{[9
]}

Heggy, E. ^{[10
]}

Hillyard, M. ^{[2
]}

Jensen, R. ^{[2
]}

Kirk, R. L. ^{[11
]}

LaVallee, D. ^{[2
]}

McKerracher, P. ^{[2
]}

Neish, C. D. ^{[2
]}

Nozette, S. ^{[1
]}

Nylund, S. ^{[2
]}

Palsetia, M. ^{[12
]}

Patterson, W. ^{[2
]}

Robinson, M. S. ^{[13
]}

Raney, R. K. ^{[2
]}

Schulze, R. C. ^{[2
]}

Sequeira, H. ^{[2
]}

Skura, J. ^{[2
]}

Thompson, T. W. ^{[10
]}

Thomson, B. J. ^{[2
]}

Ustinov, E. A. ^{[10
]}

Winters, H. L. ^{[2
]}

机构：

[1] Lunar & Planetary Inst, Houston, TX 77058 USA

[2] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 20723 USA

[3] Proxemy Res Inc, Laytonville, MD 20882 USA

[4] Natl Radio Astron Observ, Socorro, NM 87801 USA

[5] Smithsonian Inst, Ctr Earth & Planetary Studies, Washington, DC 20013 USA

[6] ISRO, Ctr Space Applicat, Ahmadabad 380015, Gujarat, India

[7] NASA, Ames Res Ctr, Planetary Syst Branch, Moffett Field, CA 94035 USA

[8] Univ Hawaii, Hawaii Inst Geophys & Planetol, Honolulu, HI 96822 USA

[9] Phys Res Lab, Ahmadabad 380009, Gujarat, India

[10] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

[11] US Geol Survey, Astrogeol Program, Flagstaff, AZ 86001 USA

[12] Vexcel Inc, Boulder, CO 80301 USA

[13] Arizona State Univ, Sch Earth & Space Explorat, Tempe, AZ 85287 USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 2010年 / 37卷

关键词：

LUNAR POLES; ICE; DEPOSITS; MERCURY; SURFACE; IMAGES;

D O I：

10.1029/2009GL042259

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

We present new polarimetric radar data for the sur face of the north pole of the Moon acquired with the Mini-SAR experiment onboard India's Chandrayaan-1 spacecraft. Between mid-February and mid-April, 2009, Mini-SAR mapped more than 95% of the areas polewards of 80 latitude at a resolution of 150 meters. The north polar region displays backscatter properties typical for the Moon, with circular polarization ratio (CPR) values in the range of 0.1-0.3, increasing to over 1.0 for young primary impact craters. These higher CPR values likely reflect surface roughness associated with these fresh features. In contrast, some craters in this region show elevated CPR in their interiors, but not exterior to their rims. Almost all of these features are in permanent sun shadow and correlate with proposed locations of polar ice modeled on the basis of Lunar Prospector neutron data. These relations are consistent with deposits of water ice in these craters. Citation: Spudis, P. D., et al. (2010), Initial results for the north pole of the Moon from Mini-SAR, Chandrayaan-1 mission, Geophys. Res. Lett., 37, L06204, doi: 10.10292009GL042259.

引用

页数：6

共 27 条

[1] ICE IN THE LUNAR POLAR REGIONS [J].