【摘要】：Tycho撞擊坑作為月球最具代表性的哥白尼紀(jì)撞擊坑,其微波熱輻射特性的研究對(duì)于分析與其同期形成的大型撞擊坑的熱演化過(guò)程具有重要的參考價(jià)值.本文基于嫦娥二號(hào)微波輻射計(jì)(CELMS)數(shù)據(jù)為代表的月壤微波熱輻射數(shù)據(jù),結(jié)合月壤TiO_2含量、表面坡度和粗糙度、巖塊豐度等資料,系統(tǒng)分析了Tycho地區(qū)微波熱輻射的特征.結(jié)果表明,Tycho撞擊坑南坡(A區(qū))的微波熱輻射受月表溫度影響很大,月壤表層和深部的溫度差值也很大;坑底平原北部(B區(qū))的微波熱輻射受月表溫度影響很小,月壤表層和深部的溫度差值也很小;該東部和西部的月壤結(jié)構(gòu)在垂直方向上是有變化的;在凌晨3時(shí)以后該區(qū)達(dá)到熱平衡狀態(tài),是未來(lái)進(jìn)一步研究月壤內(nèi)部熱流特性的理想?yún)^(qū)域;濺射毯地區(qū)月壤物質(zhì)在表層與B區(qū)相近,且具有較強(qiáng)的儲(chǔ)熱能力.統(tǒng)計(jì)結(jié)果表明,表面粗糙度和巖塊豐度對(duì)月壤微波熱輻射的影響最大,坡度次之,TiO_2含量的影響最小.
[Abstract]:As the most representative Copernican impact crater on the moon, the study of microwave thermal radiation characteristics of Tycho impact crater has important reference value for analyzing the thermal evolution process of large impact crater formed at the same time. Based on the microwave thermal radiation data of lunar soil represented by the (CELMS) data of Chang 'e-2 microwave radiometer, the characteristics of microwave thermal radiation in Tycho area are analyzed systematically based on the data of TiO_2 content, surface slope and roughness of lunar soil, and the abundance of rock mass. The results show that the microwave thermal radiation in the south slope of the Tycho impact crater (area A) is greatly affected by the monthly surface temperature, and the temperature difference between the surface layer and the deep part of the lunar soil is also very large, and the microwave thermal radiation in the northern part of the bottom plain (area B) has little effect on the monthly surface temperature. The temperature difference between the surface layer and the deep part of the lunar soil is also very small; the structure of the lunar soil in the east and west of the region is changed in the vertical direction, and the thermal balance is reached after 3 am in this area. It is an ideal region to further study the internal heat flux of lunar soil in the future. The surface layer of lunar soil in sputtering blanket area is close to that in B area and has strong heat storage ability. The results show that the influence of surface roughness and abundance of rock on microwave thermal radiation of lunar soil is the biggest, and the effect of tio _ 2 content on the slope is the least.
【作者單位】： 吉林大學(xué)地球探測(cè)科學(xué)與技術(shù)學(xué)院;中國(guó)科學(xué)院行星科學(xué)重點(diǎn)實(shí)驗(yàn)室;中國(guó)科學(xué)院月球與行星科學(xué)重點(diǎn)實(shí)驗(yàn)室;澳門(mén)科技大學(xué)資訊科技學(xué)院;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(批準(zhǔn)號(hào):41371332) 中國(guó)科學(xué)院重點(diǎn)部署項(xiàng)目(編號(hào):KGZD-EW-603) 中央高校基本科研基金項(xiàng)目(編號(hào):JCKY-QKJC23) 澳門(mén)科技發(fā)展基金項(xiàng)目(編號(hào):110/2014/A3)資助
【分類(lèi)號(hào)】：P184.5

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