Mohid Land - Porous Media, a Tool for Modeling Soil Hydrology at Plot Scale and Watershed Scale

Forest ecosystem processes at the watershed scale: incorporating hillslope hydrology

Band, L.E., Patterson, P., Nemani, R. and Running, S.W., 1993. Forest ecosystem processes at the watershed scale: incorporating hillslope hydrology. Agric. For. Meteorol., 63: 93-126. An approach to distributed modeling of watershed hydro-ecological processes over large spatial scales is described. A data and simulation system, RHESSys (Regional HydroEcological Simulation System), combines a se...

A Dual-Scale Modeling Approach for Drying Hygroscopic Porous Media

A new dual–scale modelling approach is presented for simulating the drying of a wet hygroscopic porous material that couples the porous medium (macroscale) with the underlying pore structure (microscale). The proposed model is applied to the convective drying of wood at low temperatures and is valid in the so–called hygroscopic range, where hygroscopically held liquid water is present in the so...

Estimating soil moisture at the watershed scale with satellite-based radar and land surface models

Spatially distributed soil moisture profiles are required for watershed applications such as drought and flood prediction, crop irrigation scheduling, pest management, and determining mobility with lightweight vehicles. Satellite-based soil moisture can be obtained from passive microwave, active microwave, and optical sensors, although the coarse spatial resolution of passive microwave and the ...

Quantifying Soil Moisture Distribution at a Watershed Scale

Effect of natural land covers on runoff and soil loss at the hill slope scale

Erosion plots were selected for characterizing the effects of main natural factors on runoff and soil loss in a semi-arid region. These erosion plots with an area of 40 m2 are located in the Kakhk experimental watershed in Gonabad County of Khorasan-e Razave Province in the north-eastern Iran. Data acquired from 2008 to 2015 include slope, aspect, soil texture and land covers (canopy...