| AVHRR分裂窗算法反演高山草甸地表温度精度评估 |
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| 引用本文： | 闵文彬,李跃清.AVHRR分裂窗算法反演高山草甸地表温度精度评估[J].四川气象,2014(2):44-47. |
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| 作者姓名： | 闵文彬 李跃清 |
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| 作者单位： | 中国气象局成都高原气象研究所,成都610072 |
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| 基金项目： | 公益性行业（气象）科研专项经费项目GYHY201406001和GYHY201206041;川气课题2011-开发-09 |
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| 摘 要： | 利用理塘县高山草甸地表温度实测数据,分析6种常用AVHRR分裂窗算法的精度,为青藏高原地区地表温度的卫星反演提供技术支持.结果表明：6种常用AVHRR分裂窗算法反演地表温度与实测值之间有很好的线性正相关关系,反演温度与实测温度最大偏差3.36K,最大平均绝对误差2.25k,最小平均绝对误差0.77K.给出了反演高山草甸地表温度的AVHRR分裂窗算法建议.
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| 关 键 词： | 分裂窗算法 地表温度 AVHRR 高山草甸 |
Evaluation of Split-window Algorithms for Land Surface Temperature Retrieval from AVHRR Data over Alpine Meadow |
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| MIN Wenbin,LI Yueqing.Evaluation of Split-window Algorithms for Land Surface Temperature Retrieval from AVHRR Data over Alpine Meadow[J].Journal of Sichuan Meteorology,2014(2):44-47. |
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| Authors: | MIN Wenbin LI Yueqing |
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| Institution: | (Institute of Plateau Meteorology, CMA, Chengdu 610072, China) |
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| Abstract: | Six commonly used split -window algorithms for deriving land surface temperature （LST） from advanced very high resolution radiometer （AVHRR） are validated with in situ measurement （ T, ） over Litang alpine meadow. This purpose is to provide some technical supports on the split- window algorithm selection over the Tibetan Plateau. Results show that there are significant linear correlations between the land surface temperatures derived by the six algorithms and the in situ measure- ments. The maximum deviation of LST and T is 2. 35K. The maximum mean absolute error is 1.33 K ,while the minimum is 0. 49K . Two split - window algorithms are suggested for deriving alpine meadow surface temperature from AVHRR. |
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| Keywords: | split - window algorithm land surface temperature AVHRR alpine meadow |
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