基于卫星遥感的兴凯湖水资源特征变化研究
Study on the characteristics and influencing factors of water resources of Xingkai Lake from the perspective of multi-source satellite remote sensing
投稿时间:2023-11-24  修订日期:2024-04-22
DOI:
中文关键词:  ICEsat-1/2、Landsat、GRACE、兴凯湖、水体变化
英文关键词:ICEsat-1/2, Landsat, GRACE, Xingkai  Lake, water  changes
基金项目:国家自然科学基金(52379021,52079060)。
作者单位邮编
郜玉青 辽宁师范大学 地理科学学院 116029
曹永强* 天津师范大学 京津冀生态文明发展研究院 300387
么嘉棋 天津师范大学 京津冀生态文明发展研究院 
王菲 辽宁师范大学 地理科学学院 
王梦然 天津师范大学 京津冀生态文明发展研究院 
莫凡 自然资源部国土卫星遥感应用中心 
温振 山东科技大学测绘与空间信息学院 
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中文摘要:
      湖泊作为陆地表层系统最基本的地理单元,研究湖泊水资源特征的重要性凸显。因此基于多源卫星遥感数据,利用ICEsat-1/2、Landsat数据及GRACE重力卫星数据分析了兴凯湖不同时间序列的水资源动态变化特征,并结合兴凯湖区域的气象与土地利用数据探究了气候变化与人类活动对水资源特征的影响。结果表明:(1)ICEsat-1监测的兴凯湖2003-2009年年内水位呈现出周期性波动,年际水位呈上升趋势;ICEsat-2监测的兴凯湖2018-2022年年内年际水位呈下降趋势。 ATL13数据中6个轨道显示水剖面变化趋势一致。(2)2003-2021年兴凯湖面积以增加为主,东部与南部增加最明显。(3)GRACE反演的兴凯湖水储量变化呈上升趋势,且季节变化为春季>冬季>夏季>秋季。湖泊水体变化特征都与降水有较高的相关性。研究结果可为流域的水资源综合利用与制定生态环境保护措施提供理论依据。
英文摘要:
      As the most basic geographical unit of the land surface system, it is important to study the characteristics of lake water resources. Therefore, based on multi-source satellite remote sensing data, ICEsat-1/2, Landsat data and GRACE gravity satellite data were used to analyze the dynamic change characteristics of water resources in different time series of Xingkai Lake, and the impact of climate change and human activities on water resources characteristics was explored by combining the meteorological and land use data of Xingkai Lake area. The results showed that: (1) The water level of Xingkai Lake monitored by ICEsat-1 showed periodic fluctuations from 2003 to 2009, and the interannual water level showed an upward trend; The interannual water level of Xingkai Lake monitored by ICEsat-2 showed a downward trend from 2018 to 2022. The six orbits in the ATL13 data show that the water profile trend is consistent. (2) From 2003 to 2021, the area of Xingkai Lake mainly increased, and the increase in the east and south was the most obvious. (3) The changes of water storage in Xingkai Lake inverted by GRACE showed an upward trend, and the seasonal changes were spring> winter> summer > autumn. There is a high correlation between the change characteristics of lake water and precipitation. The results of this study can provide a theoretical basis for the comprehensive utilization of water resources and the formulation of ecological and environmental protection measures in the basin.
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