CAJ | 학술논문

以精河流域绿洲为研究区，使用Landsat ETM＋数据，采用单窗算法和普适性单通道算法对研究区地表温度进行反演，并将这两种算法的反演结果与研究区MODIS温度产品（MODIS LST ）进行比较。结果表明：（1）单窗算法和普适性单通道算法反演的结果总体趋势比较接近，研究区整体的平均温度相差约2k；（2）采用改进型土壤调整植被指数（MSAVI ）代替归一植被指数（NDVI ）计算地表比辐射率可有效提高反演精度，并且同等条件下单窗算法的反演精度高于普适性单通道算法，两种算法的反演结果与MODIS LST的相关系数分别是0．9255和0．8651；（3）在城镇区域，普适性单通道算法反演结果与MSAVI的相关性高于单窗算法，相关系数为0．8136，说明普适性单通道算法更适合干旱区大范围城镇地表温度的反演研究。
이정하류역록주위연구구，사용Landsat ETM＋수거，채용단창산법화보괄성단통도산법대연구구지표온도진행반연，병장저량충산법적반연결과여연구구MODIS온도산품（MODIS LST ）진행비교。결과표명：（1）단창산법화보괄성단통도산법반연적결과총체추세비교접근，연구구정체적평균온도상차약2k；（2）채용개진형토양조정식피지수（MSAVI ）대체귀일식피지수（NDVI ）계산지표비복사솔가유효제고반연정도，병차동등조건하단창산법적반연정도고우보괄성단통도산법，량충산법적반연결과여MODIS LST적상관계수분별시0．9255화0．8651；（3）재성진구역，보괄성단통도산법반연결과여MSAVI적상관성고우단창산법，상관계수위0．8136，설명보괄성단통도산법경괄합간한구대범위성진지표온도적반연연구。
Based on Landsat ETM+ image data in Jinghe watershed oasis ,both methods of mono-window algorithm and single-channel algorithm were adopted to retrieve land surface temperature (LST ) in the study area ,and the compari-son between the retrieved results and MODIS temperature products (MODIS LST ) was made .The results showed :(1 ) The retrieved results from these two algorithms were similar each other in overall trend ,and the mean temperature differ-ence of the whole study area was about 2k .(2) The retrieval accuracy could be improved effectively by using modified soil-adjusted vegetation index (MSAVI ) instead of normalized differential vegetation index (NDVI ) to compute land sur-face emissivity ,and the retrieval accuracy of single-window algorithm was higher than that of single-channel algorithm . The correlation coefficients between the retrieved data of these two algorithms and MODIS LST were 0 .925 and 0 .8651 , respectively .(3) In the urban areas ,the correlation coefficient between the retrieved data of single-channel algorithm and MSAVI was 0 .8136 ,being higher than that of mono-window algorithm .Therefore ,the method of single-channel al-gorithm was more suitable for the retrieval research of LST in urban areas in large scale .