Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018WR023302 |
The Climatic Water Balance and Topography Control Spatial Patterns of Atmospheric Demand, Soil Moisture, and Shallow Subsurface Flow | |
Hoylman, Zachary H.1; Jencso, Kelsey G.1; Hu, Jia2; Holden, Zachary A.3; Martin, Justin T.4; Gardner, W. Payton5 | |
2019-03-01 | |
发表期刊 | WATER RESOURCES RESEARCH
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ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2019 |
卷号 | 55期号:3页码:2370-2389 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Catchment hydrometeorology and the organization of shallow subsurface flow are key drivers of active contributing areas and streamflow generation. However, understanding how the climatic water balance and complex topography contribute to these processes from hillslope to catchment scales remains difficult. We compared time series of vapor pressure deficits and soil moisture to the climatic water balance and topographic variables across six zero-order catchments in the Lubrecht Experimental Forest (Montana, USA). We then evaluated how local hydrometeorology (volumetric water content and atmospheric vapor pressure deficit) affected the spatial occurrence of shallow subsurface flow. Generalized linear mixed model analysis revealed significant, temporally stable (monthly and seasonal average) patterns of hydrometeorology that can be predicted by the topographic wetness index and the dynamic climatic water deficit (CWD = potential evapotranspiration - actual evapotranspiration). Intracatchment patterns were significantly correlated to the topographic wetness index, while intercatchment patterns were correlated to spatiotemporal variance in the CWD during each time period. Spatial patterns of shallow subsurface flow were related to the hydrometeorological conditions of the site. We observed persistent shallow subsurface flow in convergent hillslope positions, except when a catchment was positioned in locations with high CWDs (low elevations and southerly aspects). Alternatively, we observed persistent subsurface flow across all hillslope positions (even 70-m upslope from the hollow) when catchments were positioned in locations with especially low CWDs (northerly aspects and high elevations). These results highlight the importance of considering the superposition of the catchment-scale climatic water balance and hillslope-scale topography when characterizing hydrometeorology and shallow subsurface flow dynamics. |
英文关键词 | topography hydrometeorology climatic water balance soil moisture hydrologic connectivity shallow subsurface flow |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000464660000031 |
WOS关键词 | TEMPORAL STABILITY ; SOLAR-RADIATION ; GROUNDWATER DYNAMICS ; RUNOFF GENERATION ; SURFACE ; VARIABILITY ; HILLSLOPE ; MICROCLIMATE ; LANDSCAPE ; TERRAIN |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/181580 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Montana, WA Franke Coll Forestry & Conservat, Montana Climate Off, Missoula, MT 59812 USA; 2.Univ Arizona, Sch Nat Resources & Environm, Tucson, AZ USA; 3.US Forest Serv, USDA, Missoula, MT USA; 4.Montana State Univ, Dept Ecol, Bozeman, MT 59717 USA; 5.Univ Montana, Geosci Dept, Missoula, MT 59812 USA |
推荐引用方式 GB/T 7714 | Hoylman, Zachary H.,Jencso, Kelsey G.,Hu, Jia,et al. The Climatic Water Balance and Topography Control Spatial Patterns of Atmospheric Demand, Soil Moisture, and Shallow Subsurface Flow[J]. WATER RESOURCES RESEARCH,2019,55(3):2370-2389. |
APA | Hoylman, Zachary H.,Jencso, Kelsey G.,Hu, Jia,Holden, Zachary A.,Martin, Justin T.,&Gardner, W. Payton.(2019).The Climatic Water Balance and Topography Control Spatial Patterns of Atmospheric Demand, Soil Moisture, and Shallow Subsurface Flow.WATER RESOURCES RESEARCH,55(3),2370-2389. |
MLA | Hoylman, Zachary H.,et al."The Climatic Water Balance and Topography Control Spatial Patterns of Atmospheric Demand, Soil Moisture, and Shallow Subsurface Flow".WATER RESOURCES RESEARCH 55.3(2019):2370-2389. |
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