青藏高原湖泊面积长时间序列数据集(1970-2013)
收藏国家地球系统科学数据中心2022-02-17 更新2024-03-04 收录
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https://www.geodata.cn/data/datadetails.html?dataguid=142382554259863&docId=10356
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该数据集为青藏高原湖泊面积长时间序列数据集(1970-2013)
。包含1970s至2013年364个面积大于10平方公里湖泊的面积序列数据。根据Landsat影像得来,以Landsat 10月份数据为主,每隔3年取一个数据,减少季节变化的同时,可利用数据达到最大。数据使用NDWI水体指数提取,每个湖泊经过人工目视检查与编辑。
数据集包含9个shp矢量数据,1976_1980.shp,1986_1990.shp,1991_1993.shp,1994_1997.shp,1998_2000.shp,2001_2003.shp,2004_2007.shp,2008_2010.shp,2011_2013.shp。
This is a long-time series dataset of lake areas on the Qinghai-Tibet Plateau (1970-2013). It contains area sequence data of 364 lakes with an area greater than 10 km² from the 1970s to 2013. The dataset is derived from Landsat satellite imagery, with primary data sourced from October observations. One data batch is collected every three years to reduce the influence of seasonal variations while maximizing the number of available datasets. Water bodies were extracted using the Normalized Difference Water Index (NDWI), and each lake was manually visually inspected and edited for accuracy. The dataset includes 9 SHP vector files: 1976_1980.shp, 1986_1990.shp, 1991_1993.shp, 1994_1997.shp, 1998_2000.shp, 2001_2003.shp, 2004_2007.shp, 2008_2010.shp, 2011_2013.shp.
提供机构:
中国科学院青藏高原研究所
创建时间:
2022-02-17



