INTEGRATED SCIENCE AND WATERSHED MANAGEMENT SYSTEM (ISWMS™)

Real-time, probabilistic flood and low-flow intelligence forecasting and mapping designed for operational decision-making at scale.

Unlike conventional hydraulic modeling workflows, ISWMS™ combines ML-based probabilistic forecasting with rapid mapping, reducing time-to-insight from weeks to hours.

Operational forecasts with uncertainty: supports real-time situational awareness and planning (including multi-scenario climate inputs where applicable).
Fast, actionable mapping outputs: translates flow forecasts and design flows into flood risk intelligence that can be communicated visually.
Built for complex engineering applications: supports infrastructure owners, emergency management, and resource/industrial operators.

Trusted since 1999 — Supporting operations for municipalities, conservation authorities, emergency management programs, and resource sector clients across Canada.

What ISWMS™ delivers

Modern watershed management requires forecasts that are not only timely, but also transparent about uncertainty and easy to act on. ISWMS™ integrates forecasting, hydrologic context, and mapping-oriented outputs to support decisions across flood response, drought/low-flow operations, and long-term planning.

Capabilities:

Probabilistic flow forecasts — localized, uncertainty-aware predictions
Flood and low-flow decision support — real-time operational view
Flood-frequency analysis (FFA) — return-period design flow context
Map-ready risk intelligence — web-ready visuals and decision outputs

Current platform capabilities

ISWMS™ v3 (Operational) — Machine-learning flow forecasting + FFA

Incorporates a Temporal Fusion Transformer (TFT)-based machine-learning model to generate hydrometric flow forecasts across North America.
Trained on an extensive archive of flow measurements from thousands of gauging stations, integrating:
- real-time hydrometric observations
- climate inputs
- catchment characteristics
Produces localized probabilistic flow predictions to support operational decisions.
Includes Flood-Frequency Analysis (FFA) functionality to derive return-period basin flows, enabling both real-time forecasting and long-term hydrologic design context.

See ISWMS™ v3 video (with audio)

ISWMS™ v5 (Prototype / Pilot) — Rapid hydraulic flood mapping with LiDAR-informed modeling

Addresses a common gap: many regions lack up-to-date, decision-ready flood maps due to the cost and time required for conventional hydraulic modeling.
Adds a computationally efficient hydraulic flood mapping approach designed to translate forecasted/design flows into inundation extents that can be rendered in web-based map products.
Evaluated using a LiDAR-based open-source mapping database and assessed against a calibrated, validated, professionally sealed hydraulic model for a real river system context.

Validation and quality assurance

Validation highlights:

Where validated: Mattagami River system / City of Timmins, Ontario
Compared against: Calibrated, validated HEC-RAS 1D model sealed by a professional engineer
Events tested: 25-, 50-, and 100-year return period floods; Timmins Storm (regulatory) flood event
How evaluated: Flood extent comparison using 9 statistical performance measures

What this means for users: Confidence-aware outputs and decision support—not just a single deterministic line.

Limitation acknowledgment: Forecast skill varies by basin data availability and climate input quality. ISWMS™ outputs are decision-support tools and do not replace site-specific engineering assessments where required.

Applications

Resource and industrial operators (mining, oil sands, etc.)

Operational risk management for flood/erosion susceptibility affecting facilities, access routes, and site infrastructure.

Utilities + hydropower

Flow prediction for operational planning, asset protection, and optimization of hydropower operations.

Emergency management + public safety

Flood early warning and operational response support for vulnerable communities, including flood-prone settlements and remote regions.

Infrastructure owners and corridors

Risk intelligence for:
- Wastewater treatment plants impacted by floodplains (including CSO storage/overflow contexts).
- Road/bridge crossings and culverts supporting asset management programs.
- Transportation corridors susceptible to flash flooding.
- Pipeline/telecommunications crossings affected by erosion and extreme flows.

Consulting and planning

Support for environmental assessment planning and design for corridors and facilities; technical inputs that support stakeholder engagement contexts where required.

Deployment and governance

Designed to support operational usage with monitoring and controlled access.
Supports defensible workflows by documenting inputs, assumptions, and uncertainty.

To explore how ISWMS™ supports operational flood and low-flow decision support, contact us or request a demonstration.

Updated: January 7, 2026
Greenland International Consulting Ltd.

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Client Testimonials

Sustainable Buildings Canada

Sustainable Buildings Canada (SBC) has worked closely with Greenland Consulting Engineers (Greenland) as part of the Savings By Design program offered by Enbridge Gas Distribution. The program features an integrated design workshop that exposes builders and developers to the potential environmental and energy performance benefits that can be achieved through a holistic planning process. This includes identifying alternative approaches to site sustainability including low impact development and storm water management.

Inherent in the integrated design process is the need to access experienced and highly qualified individuals and organizations that can identify potential alternative solutions. SBC has a very capable roster of consultants that represent the core expertise required for this kind of expertise. Greenland is one of those organizations, providing critical input related to storm water management, low impact development and site sustainability.

Greenland consulting staff are all extremely knowledgeable and up to date on the various issues related to storm water management and low impact development and have always provided that expertise in a professional manner, recognizing the need to be sensitive to both the needs of the developers and the desire to improve environmental performance. It has been a great pleasure to work with Greenland and we look forward to doing so in the future.

Michael Singleton
Executive Director
Sustainable Buildings Canada
November 1, 2013

Moriyama & Teshima Architects

On behalf of Moriyama & Teshima Architects, I would like to thank you for your high level of competence and involvement expressed in the design process on the Keele Street Public School Addition and Renovation project… I felt you were integral and instrumental in coming in and taking the project from an ill-fated design…to design completion, tender and the approvals stage. You showed high levels of knowledge and understanding in your field, and your thoroughness and professionalism have led to the success of this project to date. I am thoroughly satisfied in the way you designed the services system, dealt with authorities having jurisdiction, and for your recommendations regarding budgetary concerns.

I would not hesitate in recommending you as a civil engineering consultant on any further project I am involved with.

Gene Ascenzi B.Arch, OAA, MRAIC, LEEP AP
Project Manager
Moriyama & Teshima Architects
August 25, 2014

The City of Waterloo

As a Senior Project Engineer (Water Resources) for the City of Waterloo, I would like to extend my appreciation to Greenland Consulting Engineers for providing exemplary EA planning, design, contract administration and construction inspection services for the Pond #53 Sediment Removal/Reuse and Retrofit Project.

This project was an important undertaking for the City which consisted of: the removal of 360m3 of sediment for reuse in a City owned boulevard area; removal of all additional sediment (approx. 3,000m3) from the SWMF permanent pool and forebay area to improve its operation, implementation of the retrofit design including improved maintenance access and proactive management of many unforeseen conditions throughout the duration of the project. This project also included significant logistical challenges with respect to the coordination of public access for area residents and businesses, and providing workable solutions to implementing the design as intended due to challenging unforseen site constraints.

As the Design Consultant, Contract Administrator and on-site Construction Inspector, Greenland always maintained open lines of communication between the City, Contractor and the affected residents, and promptly responded to all questions and issues raised by the Contractor, the City and the public. Greenland’s attention to detail throughout the entire duration of this assignment helped ensure the project was completed as required.

Jessica Kellerman, P. Eng
Senior Project Engineer - Water Resources
Engineering Services, Design & Construction
City of Waterloo
October 24, 2019

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