基于多源数据协同的遥感动态监测  

Remote Sensing Dynamic Monitoring Based on Multi-source Data Cooperation

作　　者：李根军 杨雪松[1,2] 李得林 刘锦秀[1,2] 杜程 LI Genjun

机构地区：[1]青藏高原北部地质过程与矿产资源重点实验室,青海西宁810012 [2]青海省地质调查院,青海西宁810012

出　　处：《地理空间信息》2021年第12期59-63,I0002,共6页Geospatial Information

基　　金：青海省科技厅科技成果转化专项项目(2020-SF-150);青海省科技厅创新平台建设专项项目(2019-ZJ-T04)。

摘　　要：采用GF-1、ZY102C国产高分数据以及Sentinel-1雷达数据,开展可可西里盐湖动态监测,研究结果表明在2015-2020年期间,可可西里盐湖水体面积持续增长,其中2018年7月至2019年7月期间湖水面积增长最快,之后盐湖面积增长速度有所减缓,自2019-08-30引流疏导应急工程引水以来,盐湖面积变化速率呈近直线型下降。2020-05-01盐湖水体面积稳定在211.77 km^(2),湖水漫溢现象已经得到遏制。结合动态监测结果分析,盐湖水体面积急剧增加是由于卓乃湖溃决,致使湖水外泄注入盐湖以及地表径流水流量增大所致。In this paper, we used GF-1 and ZY-102C domestic highresolution data and Sentinel-1 radar data to carry out dynamic monitoring of Hoh Xil Salt Lake. The results show that Hoh Xil Salt Lake continues to grow between 2015 and 2020, and the area increased fastest between July 2018 and July 2019, after which the growth rate of Salt Lake area slowed down. Since the diversion of water for emergency projects on the August 30, 2019, the change rate of Salt Lake area has been decreasing in a nearly straight line. By May 1, 2020, the water area of Salt Lake was stable at 211.77 km^(2), and the overflow of lake water had been controlled. Combined with the analysis of dynamic monitoring results, the dramatic increase of Salt Lake area is due to the collapse of Zhuonai Lake, resulting in the outflow of lake water into Salt Lake and the increase of surface runoff.

关 键 词：遥感动态监测 湖泊水域 动态变化 驱动力 可可西里盐湖 

分 类 号：P237[天文地球—摄影测量与遥感]