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首页> 外文期刊>IEEE Geoscience and Remote Sensing Letters >Feasibility of Retrieving Land-Surface Temperature From ASTER TIR Bands Using Two-Channel Algorithms: A Case Study of Agricultural Areas
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Feasibility of Retrieving Land-Surface Temperature From ASTER TIR Bands Using Two-Channel Algorithms: A Case Study of Agricultural Areas

机译：使用两通道算法从ASTER TIR波段获取地表温度的可行性：以农业地区为例

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The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) provides the user community with standard products of land-surface temperature (LST) and emissivity using the temperature and emissivity separation (TES) algorithm. This letter analyzes the feasibility of using two-channel (TC) algorithms for LST retrieval from ASTER data, which could be considered as an alternative or complementary procedure to the TES algorithm. TC algorithms have been developed for all the ASTER thermal infrared bands combinations, and they have been applied to six ASTER images acquired over an agricultural area of Spain in 2000, 2001, and 2004. LST values obtained with TC algorithms were compared with the TES product. In addition, the TC algorithms were tested using simulated data and ground-based measurements collected coincident with the ASTER acquisition in 2004. The results show that TC algorithms provide similar accuracies than the TES algorithm (~1.5 K), with the main advantage that the atmospheric correction is included in the algorithm itself
机译：先进的星载热发射和反射辐射计（ASTER）使用温度和发射率分离（TES）算法为用户提供了地表温度（LST）和发射率的标准产品。这封信分析了使用两通道（TC）算法从ASTER数据进行LST检索的可行性，该算法可被视为TES算法的替代或补充程序。已经为所有ASTER热红外波段组合开发了TC算法，并将其应用于2000年，2001年和2004年在西班牙农业地区获得的六幅ASTER图像。将通过TC算法获得的LST值与TES产品进行了比较。 。此外，还使用模拟数据对TC算法进行了测试，并在2004年与ASTER采集同时进行了地面测量。结果表明，TC算法提供的精度与TES算法（〜1.5 K）相近，其主要优点是大气校正包含在算法本身中

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