guest ::
| Home > Publications database > Transition of Stage I to Stage II evaporation regime in the topmost soil: High-resolution NMR imaging, profiling and numerical simulation |
| Home > Publications database > Transition of Stage I to Stage II evaporation regime in the topmost soil: High-resolution NMR imaging, profiling and numerical simulation |
| Contribution to a conference proceedings/Journal Article | FZJ-2014-05703 |
; ; ; ;
2015
Elsevier
Amsterdam [u.a.]
This record in other databases: 
Please use a persistent id in citations: doi:10.1016/j.micromeso.2014.10.035
Abstract: Bare soils are natural porous media where moisture and transport properties may change considerably. Under very dry conditions, it is predicted that capillary continuity from deeper soil layers to the surface ceases and evaporation decreases drastically because it is only sustained by vapor transport through an increasing dry surface layer (stage II). In this study, we firstly confirm this effect by investigating the drying of a lab-scale sand column using various MRI sequences as well as a unilateral NMR sensor (NMR-MOUSE). Proofing the convenience of the unilateral sensor, we take a step forward by monitoring moisture development of a natural soil under controlled ambient conditions. Finally, the experimental results clearly validate the prediction of a coupled water, vapor and heat flow model regarding the onset of stage II evaporation and the subsequent receding secondary evaporation front.
; Current Contents - Physical, Chemical and Earth Sciences ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection
|
The record appears in these collections: |
PDF