Quoted from: https://hydrologicmodels.tamu.edu/arcgmo/hydrology/
ArcGMO is a deterministic 3D-catchment, multilayer model used to predict components of the water budget in small and large watersheds . The model uses digital maps for describing the spatial characteristics of the research area (elevation, aspect, slope, soil, land use/land cover, groundwater depth) and time series of precipitation, air temperature, air humidity, global radiation or sun duration and wind velocity as inputs and generates time series of stream flow, other budget components, carbon and nitrogen budget components, vegetation variables, results of the climate regionalization among others that can be imported easily into GIS (e.g. ArcView, ArcGIS) or into table calculation programs (EXCEL, ACCESS etc.)
Model Parameters:
Depend on the activated sub-models and layers
Spatial Scale Employed in the Model:
- hydrotopes (polygon or grid) for the simulation of the “vertical domain” (vertically directed) processes (1 m² - 5 km² areal units behaving hydrologically unique and uniform, in dependence on the input data basis and the modeling aim)
- different larger areal units for the simulation of the lateral flows domain (subbasin, basin, runoff cascades, river reaches)
Temporal Scale Employed in the Model: 5 min up to 1 day
Input Data Requirements:
- digital maps for describing the spatial characteristics of the research area (elevation, aspect, slope, soil, land use/land cover, groundwater depth)
- time series of precipitation, air temp