1982-2020年青藏高原0.05°逐日水体制图数据集  

A dataset of daily surface water mapping products with a resolution of 0.05°on the Qinghai-Tibet Plateau during 1982-2020

作　　者：计璐艳 唐海蓉[1,2,3] 于凯 赵钦裕 白玉琪 施建成[8] JI Luyan;TANG Hairong;YU Kai;ZHAO Qinyu;BAI Yuqi;SHI Jiancheng(Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100094,P.R.China;Key Laboratory of Technology in Geo-Spatial Information Processing and Application System,Chinese Academy of Sciences,Beijing 100094,P.R.China;School of Electronic,Electrical and Communication Engineering,University of Chinese Academy of Sciences,Beijing 100049,P.R.China;College of Electronic and Information Engineering,Heibei University,Baoding 071000,P.R.China;Department of Earth System Science,Tsinghua University,Beijing 100084,P.R.China;Ministry of Education Ecological Field Station for East Asian Migratory Birds,Tsinghua University,Beijing 100084,P.R.China;Institute for Global Change Studies,Tsinghua University,Beijing 100084,P.R.China;National Space Science Center,Chinese Academy of Sciences,Beijing 100090,P.R.China)

机构地区：[1]中国科学院空天信息创新研究院,北京100094 [2]中国科学院空间信息处理与应用系统技术重点实验室,北京100094 [3]中国科学院大学电子电气与通信工程学院,北京100049 [4]河北大学电子信息工程学院,河北保定071000 [5]清华大学地球系统科学系,北京100084 [6]东亚迁徙鸟类与栖息地生态学教育部野外观测研究站,北京100084 [7]清华大学全球变化研究院,北京100084 [8]中国科学院国家空间科学中心,北京100190

出　　处：《中国科学数据（中英文网络版）》2023年第2期229-243,共15页China Scientific Data

基　　金：第二次青藏高原综合科学考察研究项目(2019QZKK0206);高分辨率对地观测系统重大专项(民用部分)二期课题(01-Y30F05-9001-20/22-03)。

摘　　要：在全球变暖背景下,以青藏高原为核心的“亚洲水塔”区域呈现变暖变湿的趋势,利用卫星遥感可对亚洲水塔区地表水体进行有效的时空变化监测。为研究青藏高原水体受气候等因素的长期影响,及水体高度动态特性,本文利用1982–2020年AVHRR逐日反射率时间序列,生产了青藏高原39年超长期逐日水体制图产品(包含水体结冰信息)。基于同时刻30米Landsat图像的水体分类结果进行精度验证,总体精度可以达到88.18%。本产品可为青藏高原水体遥感监测提供数据支撑。Under the background of global warming,the Tibet Plateau shows a trend of warming and wetting.Remote sensing data can be used to effectively monitor the spatial and temporal changes of the surface water on the Tibet Plateau.Due to the dynamic characteristics of the water,and in order to study the long-term impact of climate and other factors on the water of the Qinghai-Tibet Plateau,we used the AVHRR daily reflectance time series from 1982 to 2020 to produce the 39-year daily water body mapping product(including water freezing information)on the Qinghai-Tibet Plateau.The overall accuracy of our product is up to 88.18%based on validation samples selected from 30m Landsat images.This product can provide fundamental data support for long-term water monitoring on the Qinghai Tibet Plateau.

关 键 词：水体 青藏高原 AVHRR 逐日 

分 类 号：P332[天文地球—水文科学] TP79[水利工程—水文学及水资源]