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1 km grid data set of industrial output value in China(2010)

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科学数据银行2017-09-30 更新2026-04-23 收录
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https://www.scidb.cn/en/detail?dataSetId=633694460995174400
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资源简介:
The lack of spatial industrial output value data limited the risk and disaster assessment of industrial economy responding to global change. Therefore, we developed a new method to spatialize industrial output value coupling DMSP/OLS (Defense meteorological satellite program/operational linescan system) nighttime light data, MODIS (Moderate-resolution imaging spectroradiometer) annual vegetation data and industrial land distribution data. A grid data set of 1 km industrial output value of China was created using this method. The main steps creating the data set were as follows: (1) data preprocessing and selecting stable lighting data; (2) constructing an Enhanced Vegetation Index (EVI) adjusted nighttime light index (EANTLI) using nighttime light data which eliminated saturation and overflow by virtue of MODIS Vegetation Index; (3) obtaining optimum light index with EANTLI index which has been modified by industrial land distribution data; (4) constructing spatial distribution model of industrial output value; (5) verifying data accuracy. We randomly selected 90 cities nationwide to assess the accuracy of the data set. The results show that the relative errors of whole samples ranged from 0% to 39.6%,the relative errors of most samples were less than 15%, and the average accuracy of the data set was as high as 80.32%.
创建时间:
2017-09-30
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