Sat Sep 04 2010 11:20 pm EST - Greenland Technologies Group > CANWET Software

Welcome to the Canadian Nutrient and Water Evaluation Tool CANWET™ Version 3.6

INTRODUCTION

CANWET™ (v 3.6) is a GIS-based nutrient and water budget management tool. Its relative ease of use and ability to take advantage of commonly available spatial data makes it a solid choice over more complex models with greater input requirements. CANWET™ has been successfully used for Assimilative Capacity Studies; Watershed and Sub-watershed Studies; Master Drainage Plans; and, Source Water Protection Studies.

CANWET™ (v 3.6)

CANWET™ (v 3.6) provides the user with increased water budget modeling flexibility over previous versions. This is the first version to allow the user to incorporate the affects of inter-basin and groundwater flux. See water budget enhancements brochure for details on specific enhancements.

CANWET™ (v 3.6) currently consists of four (4) modules that operate from within an ArcView 3.x GIS environment including:

The Four CANWET™ Modules:

Clipping Routines for populating input files
GWLF (Generalized Watershed Loading Function) Hydrology and Nutrient Loading Module
PRedICT (Pollution Reduction Impact Comparison Tool) Best Management Practice Module
STREAMPLAN (Spreadsheet Tool for River Environmental Assessment Management and Planning) routes In-Stream Concentrations and Flows

Clipping Routines

Clipping Routines in CANWET™ allow the user to quickly and easily populate input data files needed to run other modules in the suite. Data is clipped from Geographic Information System (GIS) vector and grid maps (approximately twenty (20) layers in total). The clipping routines can be used to generate input files for single or multiple basin analyses.

GWLF

GWLF, is a continuous, combined distributed/lumped parameter model based on land use categories. It simulates stream flow, sediment, and nutrient (nitrogen and phosphorous) loadings from a catchment, given variable-size source areas (i.e. agricultural, forested, and developed land). The model also calculates a continuous water balance over the period of the simulation.

PRedICT

PRedICT evaluates the performance of best management practices (BMPs) for existing and future scenarios by applying area-weighted loading rate reductions for phosphorous, nitrogen and sediment for both rural and urban lands. It also calculates estimated costs for typical BMP applications based on unit-costing.

STREAMPLAN

STREAMPLAN calculates continuous constituent concentrations by reach for use in total maximum monthly load studies where simulated stream concentrations are evaluated against target concentrations. STREAMPLAN uses non-point source flows and loads from GWLF to route concentrations and flows through river networks.

OTHER FEATURES AND FUNCTIONS

algorithms to correct for nutrient and sediment loss/retention/addition from reservoirs and wetlands;
Loading estimates consider septic system and livestock contributions;
Algorithms to estimate load contribution from point source discharge;
Built-in cost information for an assessment of pollution mitigation techniques, and;
GIS-based output of sub-catchment loading results in addition to tables and charts.
Universal Soil Loss Equation (USLE) based calculations consider variation in soil type and topography.

APPLICATION EXAMPLE

Although the original GWLF module has been successfully used world-wide, the initial version of CANWET™ was developed for a pilot nutrient management project led by the Lake Simcoe Region Conservation Authority in 2004. It has been continuously upgraded for Canadian conditions since this initial application in Ontario. The Assimilative Capacity Studies for the Lake Simcoe and Nottawasaga River Basins illustrates the successful use of CANWET™ for two large watersheds.

In this project, CANWET™ was used to quantify point- and non-point sources of nutrients and sediment from sub-watersheds within the Lake Simcoe and Nottawasaga River Basins. Agricultural Best Management Practices and urban mitigative measures were applied to determine loading rates under improved management conditions and to assist in setting water quality targets for annual sub-watershed loads.

PURCHASE CANWET

Our 2010 pricing structure for software, training and consulting services is provided below for only public sector and government agencies. Training is provided by Greenland International Consulting Ltd.

Software - 1 License (Canadian Dollars, applicable taxes extra)

CANWET^TM software only with sample data set and manual

$7,500

Training & Consulting - (Canadian Dollars, applicable taxes extra)

B	Introductory 1 - day training session (1 user - at our location)	$2,000
C	Advanced 2 - day training session (1 user - at our location)	$3,000
D	On-site customized training and support	Hourly Rate
E	Software customization for special applications	Hourly Rate
F	Consulting services (data development only)	Hourly Rate
G	Consulting services (model application only)	Hourly Rate

For additional copies, or training for more than 1 user, and private sector licenses, please contact us for pricing.

To place an order, full payment is required prior to receiving instructions on how to download the software from the distributor, Greenland Technologies Group Ltd.