| 中国大城市具有建筑物分类的土地利用分类数据集构建研究 |
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| 引用本文： | 马倩,王咏薇,苗世光,张亦洲,穆清晨.中国大城市具有建筑物分类的土地利用分类数据集构建研究[J].大气科学学报,2022,45(1):135-147. |
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| 作者姓名： | 马倩 王咏薇 苗世光 张亦洲 穆清晨 |
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| 作者单位： | 南京信息工程大学 大气物理学院, 江苏 南京 210044;北京城市气象研究院, 北京 100089;吉林省人工影响天气办公室, 吉林 长春 130062 |
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| 基金项目： | 国家自然科学基金资助项目（41675016） |
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| 摘 要： | 局地气候分区(Local Climate Zone,LCZ)方案是一种新的城市高分辨率土地利用分类(High Resolution Land Use Classification,HRLUC)数据集构建方法。基于LCZ分类体系制作了中国63个城市的具有建筑物分类的HRLUC数据集。原数据采用2017—2019年的Landsat 8卫星数据及高分辨Google Earth影像,涵盖51933个训练样本(>100 m×100 m)和15841个验证样本。精度评估结果表明:中国63个城市的HRLUC数据集总体质量较好,总体准确率为72%~92%,平均准确率为81%;城市用地类型准确率为59%~82%,平均准确率为72%;自然覆盖类型准确率为71%~100%,平均准确率为89%。与同类研究相比,本研究的城市用地类型准确率较高。此外,基于原始LCZ分类体系,增加修建区为中国城市LCZ分类的基本类型;63个城市中有24个城市的修建区占比超过5%,该类下垫面多位于城郊结合部。
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| 关 键 词： | 土地利用分类 高分辨 中国大城市 建筑物类型 修建区 |
| 收稿时间： | 2020/8/13 0:00:00 |
| 修稿时间： | 2020/10/28 0:00:00 |
Study on construction of land use classification datasets with building type in large cities of China |
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| MA Qian,WANG Yongwei,MIAO Shiguang,ZHANG Yizhou,MU Qingchen.Study on construction of land use classification datasets with building type in large cities of China[J].大气科学学报,2022,45(1):135-147. |
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| Authors: | MA Qian WANG Yongwei MIAO Shiguang ZHANG Yizhou MU Qingchen |
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| Institution: | School of Atmospheric Physics, Nanjing University of Information Science and Technology, Nanjing 210044, China;Institute of Urban Meteorology, China Meteorological Administration, Beijing 100089, China; Jilin Weather Modification Office, Changchun 130062, China |
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| Abstract: | Local climate zone (LCZ) scheme is a new method to construct urban high resolution land use classification (HRLUC) datasets.Based on the LCZ classification system,HRLUC datasets with building classification in 63 cities of China are produced.The original data are Landsat 8 satellite images and high resolution Google Earth images from 2017 to 2019,covering 51 933 training samples (>100 m×100 m) and 15 841 validation samples.The accuracy evaluation results show that the overall quality of HRLUC datasets in 63 cities of China is good,the overall accuracy is 72%-92%,and the average accuracy is 81%;The accuracy of urban land types is 59%-82%,and the average accuracy is 72%;The accuracy of natural land cover types is 71%-100%,and the average accuracy is 89%.Compared with similar studies,the accuracy of urban land types in this study is higher.In addition,based on the original LCZ classification system,construction zone is added as a basic type of urban LCZ classifications in China.24 of the 63 cities have the construction zone accounting for more than 5%,and the underlying surface of this type is mostly located at the junction of urban and suburban areas. |
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| Keywords: | land use classification high resolution large cities of China building type construction zone |
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