Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018WR023923 |
Sensitivity of a Continuum-Scale Porous Media Heat and Mass Transfer Model to the Spatial-Discretization Length-Scale of Applied Atmospheric Forcing Data | |
Trautz, Andrew C.1,2; Illangasekare, Tissa H.1; Howington, Stacy2; Cihan, Abdullah3 | |
2019-04-01 | |
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:4页码:3520-3540 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Fundamental process understanding and description of heat, mass, and momentum exchanges across the land-atmosphere interface in model boundary forcing parameterizations is critical to the simulation of near-surface soil moisture dynamics (e.g., bare-soil evaporation). This study explores the sensitivity of a continuum-scale porous media heat and mass transfer model to the spatial-discretization length-scales (i.e., spatial-resolution) of near-surface atmospheric data; the goal is to determine how much data are needed to force the model and adequately capture evaporative water losses and subsurface state variable distributions. The requisite atmospheric forcing data were taken from the high-resolution, precision bare-soil evaporation experiments of Trautz et al. (2018, https:// doi.org/10.1029/2018WR023102). Simulation results demonstrated that shallow subsurface mass and heat transfer dynamics can be adequately captured with forcing data averaged over large length-scales, or a minimal number of measurements, provided that soil conditions are properly described. The soil moisture spatial distributions were found to be insensitive to horizontal variations in the forcing data. The model failed to capture small-scale trends observed experimentally; this did not impact the accuracy of total evaporative water loss estimates however. These results indicate that in future physical experimental efforts conducted at 1-10-m length-scales, there is no need to focus on the generation of high-spatial resolution atmospheric measurements-time and effort would be better spent in characterizing soil conditions and properties. Even though a theoretical foundation was not provided to directly extrapolate this work to the field scale, these findings have practical value in designing field data collection strategies. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000468597900051 |
WOS关键词 | SOIL-MOISTURE ; PHASE-CHANGE ; PORE-NETWORK ; HYDRAULIC CONDUCTIVITY ; FETCH REQUIREMENTS ; SURFACE-RENEWAL ; LIQUID WATER ; BARE SOIL ; EVAPORATION ; LAND |
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/182256 |
专题 | 资源环境科学 |
作者单位 | 1.Colorado Sch Mines, Dept Civil & Environm Engn, Ctr Expt Study Subsurface Environm Proc CESEP, Golden, CO 80401 USA; 2.US Army, Corps Engineers Engineer Res & Dev Ctr ERDC, Vicksburg, MS 39180 USA; 3.Lawrence Berkeley Natl Lab, Energy Geosci Div, Berkeley, CA USA |
推荐引用方式 GB/T 7714 | Trautz, Andrew C.,Illangasekare, Tissa H.,Howington, Stacy,et al. Sensitivity of a Continuum-Scale Porous Media Heat and Mass Transfer Model to the Spatial-Discretization Length-Scale of Applied Atmospheric Forcing Data[J]. WATER RESOURCES RESEARCH,2019,55(4):3520-3540. |
APA | Trautz, Andrew C.,Illangasekare, Tissa H.,Howington, Stacy,&Cihan, Abdullah.(2019).Sensitivity of a Continuum-Scale Porous Media Heat and Mass Transfer Model to the Spatial-Discretization Length-Scale of Applied Atmospheric Forcing Data.WATER RESOURCES RESEARCH,55(4),3520-3540. |
MLA | Trautz, Andrew C.,et al."Sensitivity of a Continuum-Scale Porous Media Heat and Mass Transfer Model to the Spatial-Discretization Length-Scale of Applied Atmospheric Forcing Data".WATER RESOURCES RESEARCH 55.4(2019):3520-3540. |
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