|
MOHID Land is the hydrology module within the three-dimensional MOHID Water Modelling System. MOHID is an integrated system for water flow, consisting of three main modules: ''Water'' for three-dimensional fluid dynamics, ''Land'' for hydrology and ''Soil'' for groundwater flow. The MOHID Land module is a watershed mathematical model — or hydrological transport model — designed to simulate the flow of water in a drainage basin and aquifer. The processes which are simulated include two-dimensional overland runoff, infiltration into the ground, one-dimensional drainage network flow through rivers and canals, as well as (saturated and unsaturated) porous medium transport.〔(Mohid Land - Porous Media, a Tool for Modeling Soil Hydrology at Plot Scale and Watershed Scale )〕 The interactions between the different processes (like water exchange between aquifer and river) are calculated dynamically by the model, using the hydraulic gradients. The different processes occurring in a basin are programmed in different modules. The user can choose which modules to activate, allowing simulation of the desired ones only. MOHID Land was developed within the framework of three EU-funded projects: EcoRiver,〔(EU EcoRiver project )〕 TempQsim〔(EU TempQsim project )〕 and ICReW〔(EU ICREW project )〕 for the simulation of water flow in watersheds with pathways for river and groundwater flow. The porous media module was developed in close collaboration with soil scientists from EAN-INIA (Portuguese National Agronomic Station). Recently the ESA financed Aquapath-Soil〔(Aquapath-Soil project )〕 project to apply mohid land to support irrigation using Satellite LAI as input to the model, obtaining maps of Actual Evapotranspiration. ==Main processes solved== * Drainage network (kinematic wave equation); * 2D overland flow (kinematic wave equation); * Infiltration calculated by Richards equation or Green–Ampt approach; * Soil redistribution by Richards equation; * Aquifer flow by Darcy's law; * Evapotranspiration is calculated with the 'FAO crop reference evapotranspiration', a standardized Penman–Monteith equation.〔(FAO crop reference evapotranspiration )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「MOHID Land」の詳細全文を読む スポンサード リンク
|