Welcome to the CANadian Watershed Evaluation Tool (CANWET™ - Version 4.2)

INTRODUCTION

CANWETTM (v 4.2) is a GIS-based software suite designed to inform decision making around river basin and watershed management; water supply and wastewater treatment infrastructure; food security; and, climate change adaptation. Its ability to quickly estimate daily water balance, nutrient, erosion sediment, and bacteria loadings from GIS input data allows CANWETTM to serve as a powerful decision support system. 
 

This latest release of CANWETTM is VB.Net database-driven and web-aware, and features an integrated open source GIS environment. Its relative ease of use and ability to take advantage of commonly available spatial data makes it a solid choice over other continuous models with greater data input requirements. This "All-In-One" software suite allows you to begin your project without requiring expensive prerequisite software to use in tandem.
 

Since 2003, CANWETTM has been used for Assimilative Capacity Studies; Watershed and Sub-watershed Studies; Master Drainage Plans; Infrastructure Planning; and, Source Water Protection Studies. Various versions of the GWLF engine that is incorporated into CANWETTM have also been applied in numerous studies worldwide.


KEY FEATURES AND FUNCTIONS OF CANWET 4.2

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CANWETTM (v 4.2) offers an extensive range of features and useful tools including:

  • Daily time-step simulation engine for hydrology, hydraulics and water quality.
  • Integrated and flexible charting and mapping of simulated output.
  • Comprehensive Beneficial Management Practice (BMP) routines.
  • Integrated hydraulic routing of in-stream water quality concentrations and flows.
  • Integrated climate change scenario analysis tools (including climate data).
  • Powerful web-based service for retrieval of useful datasets.
  • Modules to handle loading estimates from septic system and livestock contributions.
  • Routing of point source discharges.
  • Link simulated output back to GIS for map creation.
  • Resources to transform your CANWETTM GIS layers into Google Earth overlays.
  • Detailed Users' Guide and Technical Manual.

GIS Processing

CANWETTM allows the user to quickly and easily generate input data through Geographic Information System (GIS) clipping routines. Data is clipped from GIS vector and grid maps. The clipping routines are used to generate input data for single or multiple basin analyses.

GWLF Simulation Engine

The Generalized Watershed Loading Function (GWLF) is a continuous model based on land use categories. It simulates stream flow, sediment, nutrient (nitrogen and phosphorous), and fecal coliform loadings from catchments, given variable-size source areas (i.e. agricultural, natural, and urban/developed lands).

BMP Functionality

CANWETTM allows for the addition of beneficial management practices (BMPs) by applying area-weighted loading rate reductions for phosphorous, nitrogen, sediment, and animal coliforms for both rural and urban lands. Multiple practices can be added in parallel or in series. It also calculates estimated costs for typical BMP applications based on unit-costing.

DATA ANALYSIS

CANWETTM features several powerful output approaches to suit your needs.

CHARTING TOOLS

  • Multiple data series can be plotted simultaneously with dual axes.
  • Choose from Catchment output, Land use, Stream Routing, and Nutrient Routing dataset categories.
  • Charts can be custom labelled, formatted, and printed.

GRID OUTPUT

  • Grid data can exported in raw format to CSV format and imported to EXCEL for custom analysis.
  • Catchment output can be filtered by date, climate scenario, or theme (e.g. Hydrology, Nutrient Load Contributors, Sediment, Land Use etc.).

STREAM AND NUTRIENT ROUTING

CANWETTM calculates continuous constituent concentrations by reach for use in TMDL and assimilative capacity studies.



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UPCOMING TRAINING SESSIONS

Check this location for future training sessions by Greenland International Consulting Ltd.


Head Office for The Greenland Group

120 Hume Street
Collingwood, ON
Canada  L9Y 1V5

tel:  705.444.8805
fax: 705.444.5482
email: greenland@grnland.com


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Client Testimonials

Lake Simcoe Region Conservation Authority

The Authority’s mission is to provide leadership in the restoration and protection of the environmental health and quality of Lake Simcoe and its watershed with our community, municipal and other government partners. As a resource management agency, we rely on decision support tools such as Greenland’s CANWET model. It continues to play a key role in informing our watershed management planning decisions in relation to policy development, stewardship priorities and education and communication programs.

As always, I look forward to our continued working relationship with you and your colleagues. The Authority appreciates your hard work, and we are confident that this study will prove beneficial in our collaborative goal to improve the health of the Lake Simcoe watershed.

Michael Walters
Chief Administrative Officer
Lake Simcoe Region Conservation Authority

November 4, 2014
 

Agriculture and Agri-Food Canada

In March of 2013, Greenland International Consulting Ltd. completed a study for Agriculture and Agri-Food Canada to estimate nutrient loading in small catchment of about 177 square kilometers in the La Salle River watershed in southern Manitoba using the CANWET 4 model. Given uncertainties in some input data and model parameters, the preliminary results using the CANWET 4 model for baseline conditions of stream discharge, nutrient concentrations and loads were satisfactory in our project team as simulated values were within the range of observed values during the validation period.

This study suggests the CANWET 4 modeling approach could be used to predict changes to nutrient loads from changing land use scenarios in watersheds of this region.

Jason Vanrobaeys
Senior Land Resource Specialist
Agriculture and Agri-Food Canada

 

Six Nations Council

On behalf of the Environment Office of the Six Nations of the Grand River, we would like to thank Greenland International Consulting Limited for the work completed to prepare the Master Drainage and Flood Remediation Plan (MDFRP) for the McKenzie Creek watershed. This plan has now enabled our office to identify the flood prone residences throughout the watershed with the flood plain mapping that has been prepared as part of this assignement. We appreciate the role that Greenland has played in assisting our office in directing Public Works with prioritizing the remedial projects to be completed in the flood prone areas. 

We also appreciate Greenland's effort in assisting the Six Nations of the Grand River with the preparation of funding applications to secure the resources to complete these remedial works. We are convinced that this MDFRP can be used as a template for completing similar drainage and flood remediation works both locally and in other First Nations lands. 

We look forward to working with your company again in the near future on the remaining watersheds that need this important work done. 

Thank you for your ongoing assistance. 

Clynt King 
Environmental Technician 
Six Nations Council Environment Office 

July 25, 2016
 

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