Microwave Emission Features of Von Kármán Crater Revealed by Chang’E-2 CELMS Data

Abstract

Von Kármán crater is located in the northwest of the SPA basin on the far side of the Moon. The crater cuts through the shallow crust and has abnormal distribution in mineral composition. Therefore，the study on the microwave emission features of Von Kármán crater will be of great significance for the thermal evolution and magma evolution of the moon. Based on the microwave sounder（CELMS）data from Chang’e-2，the brightness temperature（T_B）maps and T_B difference（dT_B）maps are generated using the time angle analysis and the bilinear interpolation method. Then the microwave radiation characteristics of Von Kármán crater are studied combined with previous geologic results and the composition map via the ArcGIS software. The discoveries are as followings：（1）a high T_B anomaly is found in the north of the crater basin，preliminarily identified as high substrate temperature；（2）the T_B shows a good correlation with the（FeO+TiO₂）content in the south part of the crater basin；（3）according to the T_B behaviors of the Von Kármán crater，new geological units are zoned in the crater floor;（4）according to the T_B performances of the Von Kármán crater，high priority of the candidate landing areas should be given to the north part with T_B anomaly，followed by the south and west parts.

Keywords

CELMS data / Von Kármán crater / microwave remote sensing / Geological significance

References

[1] 吴伟仁,王琼,唐玉华,等. “嫦娥4号”月球背面软着陆任务设计[J]. 深空探测学报,2017,4(02):111-117
WU W R, WANG Q, TANG Y H, et al. Design of Chang’e-4 lunar farside soft-landing mission [J]. Journal of Deep Space Exploration,2017,4(02):111-117
[2] MENG Z G,ZHANG J D,CAI Z C,et al. Thermal emission features of Mare Orientale revealed by CELMS data [J]. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing,2017,10(6):2991-2998
[3] SPUDIS P D,REISSE R A,GILLIS J J. Ancient multiring basinson the moon revealed by clementine laser altimetry [J]. Science,1994,266:1848-1851
[4] ZUBER M T,SMITH D E,LEMOINE F G,et al. The shape and internal structure of the moon from the Clementine mission [J]. Science,1994,266:1839-1843
[5] 张健,缪秉魁,廖庆园,等. 月球南极艾特肯盆地的地质特征:探索月球深部的窗口[J]. 矿物岩石地球化学通报,2011,30(02):234-240+244
ZHANG J,MIAO B K,LIAO Q Y,et al. The geological characteristics of the South Pole-Aitken basin on the Moon:the window to explore the deep composition of the Moon [J]. The Window to Explore the Deep Composition of the Moon,2011,30(02):234-240+244
[6] HARUYAMA J,OHTAKE M,MATSUNAGA T,et al. Long-lived volcanism on the lunar farside revealed by selene terrain camera [J]. Science,2009,323:905-908
[7] LAWRENCE D J,FELDMAN W C,BARRACLOUGH B L,et al. Global elemental maps of the Moon:The lunar prospector gamma-ray spectrometer [J]. Science,1998,281(5382):1484-1489
[8] LAWRENCE D J,FELDMAN W C,BARRACLOUGH B L,et al. Thorium abundances on the lunar surface [J]. J Geophys Res,2000,105(E8):20307-20331
[9] 李泳泉,刘建忠,欧阳自远,等. 月球表面岩石类型的分布特征:基于Lunar Prospector(LP)伽马射线谱仪探测数据的反演[J]. 岩石学报,2007,23(5):1169-1174
LI Y Q,LIU J Z,OUYANG Z Y,et al. Petrologic distributions on the Moon:based on the Lunar Prospector(LP)gamma-ray spectrometer data transformation(in Chinese)[J]. Acta Petrol Sin,2007,23(5):1169-1174
[10] 杨佳,葛良全,熊盛青,等. 利用CE1-GRS数据分析月表钍元素分布特征[J]. 核电子学与探测技术,2010(4):581-584
YANG J,GE L Q,XIONG S Q,et al. Analyzing global distribution of thorium on the lunar surface using Chang’E-1 gamma-ray spectrometer spectra data(in Chinese)[J]. Nucl Electron Detect Technol,2010(4):581-584
[11] 焦中虎,刘少峰,奚晓旭,等. 南极–艾肯盆地Th异常的富集特征和机理[J]. 中国科学:物理学 力学 天文学,2012,42(01):95-106
JIAO Z H, LIU S F, XI X X, et al. The South Pole-Aitken basin thorium anomaly and its enrichment characteristics and mechanisms(in Chinese)[J]. Sci Sin-Phys Mech Astron,2012,42(01):95-106
[12] BORST A M,FOING B H,DAVIES G R,et al. Surface mineralogy and stratigraphy of the lunar South Pole-Aitken basin determined from Clementine UV/VIS and NIR data [J]. Planetary and Space Science,2012,68(1):76-85
[13] SNAPE J F，FAGAN A L，ENNIS M E，et al. Science-rich mission sites within South Pole-Aitken basin，Part 2：Von Kármán Crater[C]// Lunar and Planetary Science Conference.USA：[s.n.]，2010：1857.
[14] 王振占,李芸,姜景山,等. 用“嫦娥一号”卫星微波探测仪亮温反演月壤厚度常和³He资源量评估的方法及初步结果分析[J]. 中国科学 D辑:地球科学,2009,39(8):1069-1084
WANG Z Z, LI Y, JIANG J S, et al. Lunar surface dielectric constant,regolith thickness and helium-3 abundance distributions retrieved from microwave brightness temperatures of CE-1 Lunar Microwave Sounder(in Chinese)[J]. Sci China Ser D-Earth Sci,2009,39(8):1069-1084
[15] 封剑青,苏彦,刘建军,等. 嫦娥二号卫星微波探测仪数据定标和处理结果[J]. 地球科学–中国地质大学学报,2013,38(4):898-906
FENG J Q,SU Y,LIU J J,et al. Data processing and result analysis of CE-2 MRM [J]. Earth Science(Journal of China University of Geosciences),2013,38(4):898-906
[16] TSANG K T，FU S，GU J，et al. A statistical learning approach to Chang’E microwave radiometer data calibration [C]// 11th International Conference on Fuzzy Systems and Knowledge Discovery.[S.l.]：IEEE，2014：374-378.
[17] HU G P,ZHENG Y C,XU A A,et al. Qualitative verification of CE-2’s microwave measurement:relative calibration based on brightness temperature model and data fusion [J]. IEEE Transactions on Geoscience & Remote Sensing,2015,54(3),1598-1609
[18] 宫晓蕙,金亚秋. “嫦娥一号”和“嫦娥二号”微波辐射观测对具温度分布廓线的月壤层介电特性的反演[J]. 科学通报,2013,58(36):3798-3805
GONG X H,JIN Y Q. Inversion of dielectric properties of the lunar regolith media with temperature profiles using Chinese Chang’E-1 and Chang’E-2 MW observations(in Chinese)[J]. Chin Sci Bull(Chin Ver),2013,58:3798-3805
[19] 张德海,张晓辉,王振占等. “嫦娥一号”微波探测仪探测月壤厚度机理和地面验证实验[J]. 中国科学 地球科学,2009,39(8):1097-1104
ZHANG D H,ZHANG X H,WANG Z Z,et al. Mechanism of lunar soil depth sounding and ground validation experiment for the CE-1 Lunar microwave sounder(in Chinese)[J]. Sci China Ser D-Earth Sci,2009,39(8):1097-1104
[20] STUART-ALEXANDER D E. Geologic map of the central far side of the moon，Scale 1：5000000 [J]. U. S. Geol. Surv.，Map，1978：1-1047.
[21] 孟治国,平劲松,Alexander GUSEV,等. 基于CELMS数据的月球东海微波辐射特性研究[J]. 深空探测学报,2014,1(3):214-219
MENG Z G, PING J S, GUSEV A, et al. Research on microwave emission features of mareorientale using CELMS data [J]. Journal of Deep Space Exploration,2014,1(3):214-219
[22] ZHENG Y C,TSANG Z S,CHAN K L,et al. First microwave map of the Moon with Chang’E-1 data:The role of local time in global imaging [J]. Icarus,2012,219(1):194-210
[23] 陈思,孟治国,张吉栋,等. Tycho撞击坑地区微波热辐射特性研究[J]. 中国科学:物理学 力学 天文学,2016,46(2):029608
CHEN S,MENG Z G,ZHANG J D,et al. Research on microwave radiation characteristics at Tycho crater area [J]. Scientia Sinica:Physica,Mechanica & Astronomica,2016,46(2):029608
[24] FANG T,FA W. High frequency thermal emission from the lunar surface and near surface temperature of the Moon from Chang’E-2 microwave radiometer [J]. Icarus,2014,232:34-53
[25] MENG Z G,XU Y,CAI Z C,et al. Influence of lunar topography on simulated surface temperature [J]. Advances in Space Research,2014,54(10):2131-2139
[26] MENG Z G,YANG G D,PING J S,et al. Influence of(FeO+TiO₂)abundance on the microwave thermal emissions of lunar regolith[J]. Science China Earth Sciences,2016,59(7):1498-1507
[27] HAGFORS T. Remote probing of the moon by infrared and microwave emissions and by radar [J]. Radio Science,1970,5(2):189-227
[28] NEAL C R. The Moon 35 years after Apollo:What’s left to learn [J]. Chemie der Erde - Geochemistry,2009,69(1):3-43
[29] 姜景山，金亚秋. 中国微波探月研究[M]. 北京：科学出版社，2011.
[30] ZHENG Y C,TSANG K T,CHAN K L,et al. First microwave map of the Moon with Chang’E-1 data:The role of local time in global imaging [J]. Icarus,2012,219:194-210
[31] CHAN K L,TSANG K T,KONG B,et al. Lunar regolith thermal behavior revealed by Chang’E-1 microwave brightness temperature data [J]. Earth and Planetary Science Letters,2010,295(1-2):287-291
[32] 宫晓蕙,金亚秋. “嫦娥一号”对月球新生环行山表面热辐射“热点”与“冷点”昼夜变化的观测[J]. 中国科学:信息科学,2012,42(8):923-935
GONG X H,Jin Y Q. Diurnal change of thermal emission with “hot spots” and “cold spots” of fresh lunar craters observed by Chinese Chang’E-1 [J]. Scientia Sinica Informationis,2012,42(8):923-935