A GIS application for design and management of pressurized on-demand irrigation delivery systems

An intuitive and user friendly GIS spatial editing environment

SIGOPRAM includes a set of tools to ease the drawing of a new network layout, or to make changes to an existing layout such as:

•Network extension;

•Hydrant positioning;

•Change/add irrigation outlets;

•Inserting/deleting nodes;

•Inserting/eliminating pipe sections;

•Insert mesh pipe (to design looped networks).

Spatial editing of specific network components

SIGOPRAM allows the introduction of components and devices with specific hydraulic features and behavior, both for purposes of design and analysis. Such components are represented in the form of nodes, and could be:

•Pumping Stations ('EB' type nodes);

•Pressure reducing/regulating valves ('VRP' type nodes );

•Localized head loss  ('LEQ' type nodes);

•RED nodes (RED=NETWORK), which allow encompassing in a single node the behavior of an entire irrigation network.

Automatic computation of adequate pressure head required at outlets

From the Digital Elevation Model, the shape of the irrigated plot and the outlet location, SIGOPRAM computes the location of the critical spot within the plot, and back-calculate the necessary pressure head at the hydrant to ensure adequate distribution uniformity throughout the plot.

Outputs of great clarity

SIGOPRAM provides a set of predefined thematic maps that can be customized by the user, as well as multiple output charts allowing greater control of the pipe sizing analysis processes. Some of these outputs are:

•Vector themes such as : flow velocity, flow rates, pressure heads, pressure deficits, etc.;

•Raster surfaces with pressure distribution throughout the plots;

•Charts with operational metrics and statistics of the network (Analysis module);

•Automatic longitudinal profiles with lines of terrain, pipe, pressures and flow velocity;

Simplified crop fields theme management

SIGOPRAM has a set of specific tools to ease crop fields management. These tools allowed us to:

  • Import new crop fields to the project;
  • Define irrigation plots;
  • Calculate the net irrigable surface.