| Technology and Methodology |
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A Method of TM6 Band Pixel Decomposition Based on the Earth Surface Types |
| WANG Fei1, QIN Zhi-hao1,2, WANG Qian-qian1 |
1. International Institute for Earth System Science, Nanjing University, Nanjing 210093, China;
2. Institute of Agro-Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China |
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Abstract The pixel spatial resolution of TM6 is 120 m. With the information of the other TM bands,the authors can identify the earth surface types for each 30 m sub-pixel. And taking advantage of the fact that different types of earth surface have different characteristics of thermal inertia, the authors can determine the weight of each sub-pixel in the original pixel as well as the radiance value of the sub-pixel. Then the mono-window algorithm is used to calculate the temperature of the earth surface. Compared with the spatial distribution variation of surface temperature calculated by cubic convolution interpolation resampling method,the method proposed in this paper can get a better spatial distribution of the earth surface temperature.
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| Keywords
remote sensing
GIS
Laoha river basin
land use change
classification
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Issue Date: 20 August 2012
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2012,
Vol. 24
