Some of the main results: 1 - when evaporating from soil the Kelvin effect is not so important. 2 - What is important is the ability of the porous medium to supply water through capillary flows. 3 - The decline of evaporation (a.k.a. stage II evaporation) happens when the vadose zone is made up of disconnected phases. 4 - The latter situation is realised when the evaporating front is at a depth that can be deduced directly from the Soil Water Retention Curves.
Here the talks by Dany:
- The first, longer talk, given at usaskgiws, the University of Saskatchewan (1 h);
- The second one, shorter given at the recent Ecohydrology conference.
Here the papers:
Aminzadeh, M., & Or, D. (2013). Temperature dynamics during nonisothermal evaporation from drying porous surfaces. Water Resources Research, 49(11), 7339–7349. doi:10.1002/2013WR014384
Assouline, S., & Or, D. (2013). Plant Water Use Efficiency over Geological Time – Evolution of Leaf Stomata Configurations Affecting Plant Gas Exchange. PLoS ONE, 8(7), e67757.
Haghighi, E., Shahraeeni, E., Lehmann, P., & Or, D. (2013). Evaporation rates across a convective air boundary layer are dominated by diffusion. Water Resources Research, 49(3), 1602–1610. doi:10.1002/wrcr.20166
Lehmann, P., & Or, D. (2014). Effect of wetness patchiness on evaporation dynamics from drying porous surfaces, 1–13. doi:10.1002/wrcr.20637