江苏西溪贝丘遗址的高光谱遥感考古研究  

Hyperspectral Remote Sensing Archaeology on Xixi Shell Mound Site in Jiangsu

作　　者：田庆久[1] 

机构地区：[1]南京大学国际地球系统科学研究所,南京210093

出　　处：《遥感信息》2007年第1期22-25,I0002,共5页Remote Sensing Information

摘　　要：针对江苏西溪贝丘遗址，通过样品采集对干净贝壳、自然状况下贝壳、土壤样品和地表裸地进行了光谱测量和分析。研究发现贝壳具有明显的光谱特征吸收峰，中心波长为2288nm处，吸收峰带宽在2098～2335nm范围内，与背景土壤粘土2180nm处的特征吸收峰和大多数碳酸岩类地表矿物质2350nm附近的吸收峰具有很好的可区分性。结合贝壳2288nm处特征吸收峰，利用该贝丘遗址发掘前的空间分辨率为6．6m的128波段OMIS航空高光谱遥感飞行数据成功地对该贝丘遗址信息进行有效地提取和圈定。本研究为利用高光谱遥感进行贝丘遗址考古提供了理论依据和有效技术途径。This paper was to address an issues of human settlement and environmental interaction on the archaeological shell mound sites in Jiangsu province using Hyperspectral Remote Sensing technology. The reflectance spectra within the visible-near-infrared （VNIR） region of clean shell and ground soil samples were measured in the lab. Moreover, the reflectance of shell and soils were recorded in the field using ASD spectroradiometer. OMIS, a 128 bands hyperspectral remote sensing sensor developed in China, was flown over the shell mound site with a spatial resolution of 6.6m before the shell mound was disentombed. Our study results showed that the feature absorption band center of shell was around 2288nm, and the bandwidth was between 2098-2335nm. The absorption features of background soils were at 2180nm and 2350nm, which were caused by clay minerals and carbonate, respectively. The shell mound could be distinguished from the background soils by reflectance spectra. The archaeological shell mound site were detected successfully together with shell spectral feature absorption at the 2288nm through OMIS remote sensing images.

关 键 词：高光谱遥感 光谱反射率 贝丘遗址 考古 OMIS 

分 类 号：P237.9[天文地球—摄影测量与遥感]