The bidirectional and directional hemispheric reflectance of Apollo 11 and 16 soils: Laboratory and Diviner measurements
The bidirectional and directional hemispheric reflectance of Apollo 11 and 16 soils: Laboratory and Diviner measurements
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阿波罗 11 号和 16 号土壤的双向和定向半球反射率：实验室和占卜者测量
DOI：
10.1016/j.icarus.2019.113456
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发表时间：
2020
期刊：
影响因子：
3.2
通讯作者：
S. Biggar
中科院分区：
文献类型：
--
作者：
E. Foote;D. Paige;M. Shepard;Jeffrey R. Johnson;S. Biggar
我们对阿波罗11号和阿波罗16号月球土壤样本进行了全面的实验室双向测量，并成功地将光度模型与实验室数据拟合，并确定了太阳光谱平均半球反射率作为入射角的函数。阿波罗11号（样本10,084）和16号（样本68,810）土壤样本是两个具有代表性的端元样本，分别来自月球暗月玛丽亚和亮月高地。我们在一个热模型中使用我们的太阳光谱平均反照率，并将我们的模型计算的正常热红外发射曲线与LRO Diviner月球辐射计实验测量的曲线进行了比较。我们在阿波罗11号地点发现了非常好的一致性，但在阿波罗16号地点，我们发现我们在实验室测量的反照率比符合Diviner红外数据所需的反照率要亮33%。我们将这种差异归因于阿波罗16号实验室样品相对于自然月球表面的压实度增加和成熟度降低，以及阿波罗16号野外区域表面反照率的局部变化，这些变化低于Diviner的空间分辨率。
We have acquired a comprehensive laboratory bidirectional measurements of Apollo 11 and Apollo 16 lunar soil samples and have successfully fit photometric models to the laboratory data and have determined the solar spectrum averaged hemispheric reflectance as a function of incidence angle. The Apollo 11 (sample 10,084) and 16 (sample 68,810) soil samples are two representative end member samples from the Moon, dark lunar maria and bright lunar highlands. We used our solar spectrum averaged albedos in a thermal model and compared our model-calculated normal bolometric infrared emission curves with those measured by the LRO Diviner Lunar Radiometer Experiment. We found excellent agreement at the Apollo 11 site, but at the Apollo 16 site, we found that the albedos we measured in the laboratory were 33% brighter than those required to fit the Diviner infrared data. We attribute this difference at Apollo 16 to increased compaction and decreased maturity of the laboratory sample relative to the natural lunar surface, and to local variability in surface albedos at the Apollo 16 field area that are below the spatial resolution of Diviner.