亚洲冰川湖泊分类与最大分布数据集(1980s-2019)
Dataset of Maximum Extent and Type of Glacial Lake in the Asia (1980s-2019)
查看参考文献22篇
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文摘
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基于全球地表水数据集(JRC Global Surface Water,GSW),结合目视解译和质量控制,开展了1980s-2019时段形成和发育的亚洲冰湖最大水域范围(≥0.01 km~2)的空间编目;根据冰湖与冰川的关系,将冰湖分为冰川补给湖(包括:冰上湖、冰川接触湖和冰川不接触湖3个亚类)和非冰川补给湖2类,同时分析了不同类型冰湖的空间分布特征,最终得到亚洲冰川湖泊分类与最大分布数据集(1980s-2019)。研究表明,冰湖总绝对面积误差为98.91 km~2,平均相对误差为19.1%。该数据集包括:(1)空间数据,即1980s-2019年亚洲冰湖最大分布范围与类型数据;(2)表格数据,包括:1980s-2019年亚洲不同大小、类型、高程尺度下冰湖的数量与面积统计。数据集存储为.shp和.xlsx格式,由9个数据文件组成,数据量为21.8 MB(压缩为1个文件,4.92 MB)。 |
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其他语种文摘
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Based on the JRC Global Surface Water (GSW) dataset,combined with visual interpretation and quality control,the authors carried out a spatial cataloging of the Asian glacial lakes (≥ 0.01 km~2) formed and developed during the period 1980s-2019,with a total absolute area error of 98.91 km~2,with the mean relative error is 19.1%.According to the relationship between glacial lakes and glaciers,glacial lakes can be divided into glacier-fed lakes (including Supraglacial Lake,Ice-contacted Lake and Ice-uncontacted Lake) and non-glacier-fed lakes,2 types.Meanwhile,the spatial distribution characteristics of different types of glacial lakes were analyzed,and finally the Dataset of maximum extent and type of glacial lake in Asia (1980s-2019) was developed.The dataset includes:(1) spatial data,the maximum extent and types of glacial lakes in Asia during1980s-2019;(2) table data,including the statistics of the number and area of glacial lakes at different size,type and elevation scales in the Asia during 1980s-2019.The dataset is archived in.shp and.kmz data formats,and consists of 9 data files with data size of 21.8 MB (Compressed to one single file with 4.92 MB). |
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来源
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全球变化数据学报
,2022,6(2):200-208 【扩展库】
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DOI
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10.3974/geodp.2022.02.05
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关键词
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GSW数据
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亚洲
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冰湖
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类型
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遥感
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地址
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1.
中国科学院南京地理与湖泊研究所, 中国科学院流域地理学重点实验室, 南京, 210008
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南京信息工程大学地理科学学院, 南京, 210044
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河南理工大学测绘与国土信息工程学院, 焦作, 454000
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语种
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中文 |
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文献类型
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数据论文 |
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ISSN
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2096-3645 |
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学科
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地球物理学 |
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基金
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中国科学院项目
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国家科技部项目
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文献收藏号
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CSCD:7407817
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