WaterWare Release Notes
WRM Water Resources ModelWRM, the dynamic   water allocation and budget model is the central model in WaterWare.
The entry point is a selector of scenarios, which can be sorted and filtered by several properties such as name, author, modification date, or location.
Another option at the level of the scenario selection is the possibility
to create a new scenario with an empty template.
To facilitate and simplify the generation and editing of new scenarios,
it is also possible to copy an existing one and modify it incrementally under a new name.
Model parameters at the scenario level include multipliers for
sectoral water demand (municipal, industrial, agricultural, tourism)
as well as global time series for temperature and precipitation that
are used through out the scenario unless specified otherwise at
the level of individual nodes or reaches.
Properties or parameters of a node depend on its type.
They include basic properties including its location and elevation, specification of release or allocation/diversion strategies, time series of demands or flow targets, and loss rates, consumptive use factors, etc. For economic evaluation, costs and benefits of water supply and use can also also be specified as unit costs.
A key type of data are time series of daily values of precipitation and temperature,
flows (for start nodes), and target flows or demand (for reservoirs, diversions,
demand nodes, or control nodes).
A preview function facilitates inspection of the data set before its selection
and linking to a node. For each time series, a scaling factor or multiplier can
be chosen to efficiently define alternative scenarios, e.g., by scaling demands.
Reaches can also received lateral inflow from their immediate subcatchments, which can be specified directly with a time series of flow data, or through daily rainfall data and a runoff coefficient.
Reaches can also interact with the groundwater to simulate exfiltration and infiltration
depending on the respective water levels.
Water supply, demand, a supply/demand ratio, consumptive, use, losses, and reliability
are also shown on a sectoral basis to facilitate keeping track of different allocation policies
and rules for a scenario. These can be controlled with the global sectoral multipliers
defined for the scenario, or with individual multipliers and scaling factors for each of
the demand nodes in the system.
This includes a tabular summary of the respective mass budget, as well as the time series of individual node type specific concepts (see below) on a daily basis.
The basic flow data for a WRM scenario resulting from hydrometeorological inputs,
allocation and demand patterns, are then available as input to the
basin wide dynamic water quality model STREAM.
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