杨飞,张成业,李军,等. 基于GRACE的黄河流域陆地水储量时空变化研究[J]. 煤田地质与勘探,2022,50(4):106−112. DOI: 10.12363/issn.1001-1986.21.09.0477
引用本文: 杨飞,张成业,李军,等. 基于GRACE的黄河流域陆地水储量时空变化研究[J]. 煤田地质与勘探,2022,50(4):106−112. DOI: 10.12363/issn.1001-1986.21.09.0477
YANG Fei,ZHANG Chengye,LI Jun,et al. Temporal and spatial changes of terrestrial water storage in Yellow River Basin based on GRACE[J]. Coal Geology & Exploration,2022,50(4):106−112. DOI: 10.12363/issn.1001-1986.21.09.0477
Citation: YANG Fei,ZHANG Chengye,LI Jun,et al. Temporal and spatial changes of terrestrial water storage in Yellow River Basin based on GRACE[J]. Coal Geology & Exploration,2022,50(4):106−112. DOI: 10.12363/issn.1001-1986.21.09.0477

基于GRACE的黄河流域陆地水储量时空变化研究

Temporal and spatial changes of terrestrial water storage in Yellow River Basin based on GRACE

  • 摘要: 黄河流域是我国目前主要的煤炭经济可采量和产能聚集地。了解和掌握黄河流域水资源及其变化不仅是推进黄河流域水资源节约集约利用的前提,更是开展黄河流域煤炭矿区生态保护与高质量发展的基础。相较于传统地面水资源监测手段受限于监测点分布和数目的影响,GRACE重力卫星为中长尺度陆地水储量时空变化研究提供一种新的途径。利用GRACE重力卫星数据,开展2002年4月到2017年6月黄河流域水储量的时空变化规律研究。利用纬圈长度加权平均,计算黄河上中下游水储量变化均值,发现黄河不同流段表现不同的变化趋势,且反映出2003年黄河流域水资源变化受到洪水等因素影响。进一步通过箱形图分析黄河流域上中下游水储量的月平均变化规律,反映出该流域“冬干春旱,夏秋多雨”的气候特点与水储量变化的密切关系。采用时间序列分解方法分析整个黄河流域水储量变化的趋势、年周期及半年周期等特征。结果表明,黄河流域水储量变化存在随经度由西向东递减趋势越来越明显的现象,其中黄河上游源头附近区域的水储量变化呈微弱的增长趋势;黄河流域水储量变化年周期和半年周期振幅存在明显区域差异,这与高山融雪、降水量的季节性差别及区域气候环境密切相关。了解和掌握上述黄河流域水储量时空变化,可为流域矿区的生态保护与可持续发展提供基础数据与参考。

     

    Abstract: The Yellow River Basin is currently the main gathering place both for economically recoverable coal and coal production in China. Understanding the water sources and its changes is not only a prerequisite for promoting the intensive use of water in the Yellow River Basin, but also the basis for carrying out the ecological protection and sustainable development of the mining areas in the Yellow River Basin. Compared with traditional methods for monitoring terrestrial water storage that are limited by the distribution and number of monitoring points, GRACE provides a new way to study the temporal and spatial changes of water storage anomalies for medium and long-scale regions. The GRACE satellite data are used to conduct the research on temporal and spatial changes of water storage anomalies in Yellow River Basin from April 2002 to June 2017. The weighted average of the length of latitude circles is used to calculate the average change of water storage anomalies, the boxplot is adopted to analyze the monthly average change of the water storage anomalies, and the time series decomposition method is utilized to analyze the characteristics of the trend, annual cycle and semiannual cycle of water storage changes in the studied area. The results show that the decreasing trend of water storage anomalies becomes increasingly obvious in the Yellow River from west to east, and the area near the source has a weak increasing trend. There are obvious regional differences in the annual and semi–annual amplitudes of water storage anomalies, which are closely related to the seasonal differences in alpine snowmelt, precipitation, and the regional climate environment. Understanding the temporal and spatial changes of the water storage in the Yellow River Basin can provide basic data and reference for the ecological protection and sustainable development of the mining areas in the basin.

     

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