Research on the distribution and content of water ice in lunar pole regions using Clementine UVVIS data
Research on the distribution and content of water ice in lunar pole regions using Clementine UVVIS data
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利用Clementine UVVIS数据研究月极地区水冰分布和含量
DOI：
10.1007/s12583-011-0210-9
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发表时间：
2011-09
影响因子：
3.3
通讯作者：
Zhou, Chao
中科院分区：
文献类型：
--
作者：
Meng, Zhiguo;Chen, Shengbo;Lu, Peng;Wang, Zijun;Lian, Yi;Zhou, Chao
自21世纪世纪以来，人们对月球的兴趣开始增加，月球极地水冰的含量和分布也越来越受到人们的关注。风化层中水或冰的存在会明显改变其介电特性。因此，本文采用多布森模型，并根据月球的环境特点对其进行改进，建立了水冰体积含量与介电常数之间的关系。然后，基于改进的多布森模型和Clementine UVVIS数据生成月壤介电分布图。该图表明，月海的介电常数虚部比高地高得多。而介电常数的最大值出现在南北两极区域，其值明显大于中低纬区域。然后，当阈值取为0.0537时，得到了介电常数的异常图，该值在中低纬度地区最高。统计结果表明，异常像素数为110 596，平均值约为0.057 9。假设月海的平均介电常数为南北极的正常介电常数，而月海的平均介电常数为异常介电常数，则可采用改进的多布森模型估算月海水冰含量。结果表明，该地区水冰平均体积含量为1.64%，总面积约25294 km 2，其中北极10956 km 2，南极10956 km 2。
Interest in the Moon started to increase at the beginning of the 21st century, and henceforth, more and more attention has been paid to the content and distribution of water ice in the lunar polar regions. The existence of water or ice in the regolith can apparently change its dielectric features. Therefore, in this article, the Dobson model is adopted and improved according to the Moon’s environmental features, to construct the relationship between the volumetric water ice content and the dielectric constant. Thereafter, a lunar regolith dielectric distribution map is generated based on the improved Dobson model and the Clementine UVVIS data. The map indicates that the imaginary part of the dielectric constants in the lunar mare is much higher than that in the highlands. However, the maximum dielectric constants occur at the north- and south-pole regions, whose values are apparently bigger than those in the middle and low latitudes. Then, an abnormal map of the dielectric constant is gained if the threshold is put as 0.053 7, which is the highest value in the middle and low latitudes. The statistical results indicate that the number of abnormal pixels is 110 596, and the average is about 0.057 9. Assuming that the mean dielectric constant in the lunar mare is the normal dielectric constant at the south and north poles andɛ1=11.58+i0.057 9 is the abnormal one, the volumetric water ice content can be evaluated using the advanced Dobson model. The results show that the average volumetric water ice content is about 1.64%, and the total area is about 25 294 km2, where 10 956 km2belongs to the north pole and the rest is in the south pole.
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影响因子：
--
作者：
R. Hodges
通讯作者：
R. Hodges
影响因子：
--
作者：
B. Butler
通讯作者：
B. Butler
DOI：
10.1109/tgrs.1985.289498
发表时间：
1985-01-01
影响因子：
8.2
作者：
DOBSON, MC;ULABY, FT;ELRAYES, MA
通讯作者：
ELRAYES, MA
影响因子：
--
作者：
S. Nozette;P. Spudis;M. Robinson;D. B. J. Bussey;C. Lichtenberg;R. Bonner
通讯作者：
S. Nozette;P. Spudis;M. Robinson;D. B. J. Bussey;C. Lichtenberg;R. Bonner
DOI：
10.1007/s11430-009-0201-1
发表时间：
2010-03
期刊：
Science China Earth Sciences
影响因子：
--
作者：
WeiGuo Zhang;Jingshan Jiang;Heguang Liu;Xiaohui Zhang;Dehai Zhang;Dihui Li;ChuanDong Xu
通讯作者：
WeiGuo Zhang;Jingshan Jiang;Heguang Liu;Xiaohui Zhang;Dehai Zhang;Dihui Li;ChuanDong Xu