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丁 皓, 史晓亮, 吴梦月.基于GRACE重力数据反演黄河流域陆地水储量变化水资源与水工程学报[J].,2021,32(4):109-115
基于GRACE重力数据反演黄河流域陆地水储量变化
Terrestrial water storage anomaly in the Yellow River Basin based on GRACE gravity satellite data
  
DOI:10.11705/j.issn.1672-643X.2021.04.15
中文关键词:  陆地水储量  GRACE  GLDAS  影响因子  黄河流域
英文关键词:terrestrial water storage  GRACE(Gravity Recovery and Climate Experiment)  GLDAS(Global Land Data Assimilation System)  influencing factor  the Yellow River Basin
基金项目:国家自然科学基金项目(52079103)
作者单位
丁 皓, 史晓亮, 吴梦月 (西安科技大学 测绘科学与技术学院 陕西 西安710054) 
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中文摘要:
      基于GRACE重力卫星数据反演黄河流域2002-2013年陆地水储量变化,并通过GLDAS验证GRACE反演结果。在此基础上采用皮尔逊相关系数法进一步探究陆地水储量与降水、气温、蒸散和植被NDVI的关系。结果表明:基于GRACE数据能够较好地反演陆地水储量;2002-2013年间黄河流域的水储量以0.56 cm/a的速度减少,且具有明显的季节特征,水储量在1-6月呈亏损状态,7-12月呈盈余状态;对黄河流域水储量变化与降水、气温、蒸散和NDVI进行滞后性分析,表明其与降水、蒸散、NDVI有两个月的滞后效应,与气温为3个月。
英文摘要:
      The changes of terrestrial water storage in the Yellow River Basin from 2002-2013 were inverted using GRACE Gravity Satellite data in this study. The inversion results were then verified by GLDAS, based on which, the relationships between terrestrial water storage and precipitation, temperature and vegetation NDVI were explored using Pearson correlation coefficient analysis. The results show that the terrestrial water storage data can be better retrieved using GRACE Gravity Satellite data. The water storage of the Yellow River Basin decreased at a rate of 0.56 cm/a from 2002 to 2013 with obvious seasonal characteristics, and it was in deficit status from January to June, but in a surplus status from July to December. The water storage change of the Yellow River Basin lagged behind for two months compared with precipitation, evapotranspiration and NDVI, and three months compared with temperature based on the results of the lagging effect analysis.
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