CAJ | 학술논문

介绍了天然气水合物的遥感探测方法，即：首先选择适当的ETM+、ASTER以及Quickbird等遥感图像，分析可见光、短波红外、热红外波段的影像特征，反演地表温度；然后结合野外调查和前人资料，寻找天然气水合物的直接和间接遥感解译标志，进行遥感解译。研究结果表明，青藏高原天然气远景区出现的几种遥感解译标志包括：地表上空高温异常(尤其是水体上空)、泥火山、沼泽地水体中大量气泡和棕黄色沉淀物，以及碳酸盐化、粘土化等指示信息。本研究为进一步开展大规模天然气水合物遥感调查和圈定靶区提供了基础方法。
개소료천연기수합물적요감탐측방법，즉：수선선택괄당적ETM+、ASTER이급Quickbird등요감도상，분석가견광、단파홍외、열홍외파단적영상특정，반연지표온도；연후결합야외조사화전인자료，심조천연기수합물적직접화간접요감해역표지，진행요감해역。연구결과표명，청장고원천연기원경구출현적궤충요감해역표지포괄：지표상공고온이상(우기시수체상공)、니화산、소택지수체중대량기포화종황색침정물，이급탄산염화、점토화등지시신식。본연구위진일보개전대규모천연기수합물요감조사화권정파구제공료기출방법。
A remote sensing detection method for natural gas hydrate (NGH) has been introduced in this paper. Appropriate remote sensing images, such as ETM+, ASTER and Quickbird were selected, image features from visible, shortwave infrared to thermal infrared bands were analyzed, surface temperature was inverted, and then direct/indirect remote sensing signs of NGH were searched in combination with field investigation and the previous data, comprehensive interpretation of all images was conducted. The research results show that in NGH prospect areas of Qinghai-Tibet plateau there are several remote sensing interpretation signs including high temperature anomalies near the ground surface(especially over water bodies) and mud volcano, a large number of bubbles and tan sediment in marsh water, and carbonatization, clayization. The research will be helpful for further large-scale remote sensing survey of NGH and delineation of the target areas.