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| DOI | 10.1029/2020GL091069 |
| Divergent Changes in Terrestrial Water Storage Across Global Arid and Humid Basins | |
| Hu, Baoyi; Wang, Lei; Li, Xiuping; Zhou, Jing; Pan, Yun | |
| 通讯作者 | Hu, BY ; Wang, L (通讯作者) |
| 发表日期 | 2021 |
| ISSN | 0094-8276 |
| EISSN | 1944-8007 |
| 卷号 | 48期号:1 |
| 英文摘要 | Understanding the terrestrial water storage changes ( increment S) across global arid and humid river basins is crucial to closing the basin-scale water balance, but still largely unclear. Here, we combine the Gravity Recovery and Climate Experiment, Global Land Data Assimilation System, and WaterGAP Global Hydrology Model products to study increment S in 197 global river basins with different aridity by using detrended analyses, and find that annual or multiyear mean increment S is small in most arid basins but relatively larger in humid basins, given the climate change and anthropogenic impacts removed. Through component analysis, we find that the soil moisture changes in drier basins contribute more to increment S than those in humid basins; and the contribution of groundwater storage changes to Delta S is irrelevant to varying moisture conditions. Our results will benefit water balance studies in global river basins (e.g., global evapotranspiration estimation with a water balance approach), and have implications for water cycle studies in the context of global change. Plain Language Summary Terrestrial water storage changes in humid and arid river basins are poorly understood, but have important ecological and socioeconomic impacts. Here, we combine the Gravity Recovery and Climate Experiment, Global Land Data Assimilation System, and WaterGAP Global Hydrology Model products, which are primarily based on satellite remote sensing, to study water storage changes in 197 arid and humid basins distributed across the world. We show that water storage changes on annual or multiyear time scales are negligible in most arid basins but are not negligible in humid basins. Changes in soil moisture contribute more strongly to total water storage change in drier basins than in humid basins, due to the different soil characteristics in drier regions. Our results will benefit water balance studies in global river basins, and have implications for water cycle studies in the context of global change. |
| 关键词 | SOIL-MOISTURE MEMORYGROUNDWATER DEPLETIONEVAPOTRANSPIRATIONPRECIPITATIONBALANCEVARIABILITYVALIDATIONDISCHARGEPRODUCTSTRENDS |
| 英文关键词 | basin-scale water balance; GLDAS; CLSM; global arid and humid river basins; groundwater; soil moisture; terrestrial water storage change |
| 语种 | 英语 |
| WOS研究方向 | Geology |
| WOS类目 | Geosciences, Multidisciplinary |
| WOS记录号 | WOS:000612943500026 |
| 来源期刊 | GEOPHYSICAL RESEARCH LETTERS
 |
| 来源机构 | 中国科学院青藏高原研究所 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/260214 |
| 推荐引用方式 GB/T 7714 | Hu, Baoyi,Wang, Lei,Li, Xiuping,et al. Divergent Changes in Terrestrial Water Storage Across Global Arid and Humid Basins[J]. 中国科学院青藏高原研究所,2021,48(1). |
| APA | Hu, Baoyi,Wang, Lei,Li, Xiuping,Zhou, Jing,&Pan, Yun.(2021).Divergent Changes in Terrestrial Water Storage Across Global Arid and Humid Basins.GEOPHYSICAL RESEARCH LETTERS,48(1). |
| MLA | Hu, Baoyi,et al."Divergent Changes in Terrestrial Water Storage Across Global Arid and Humid Basins".GEOPHYSICAL RESEARCH LETTERS 48.1(2021). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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