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

Urbantech® Consulting

Hi Mark,

Thanks for the note.  Both files went very well, both approved at LPAT and we are in detail design now.  The input from the Greenland team was greatly appreciated and ensured the hydraulic analysis was accurate. Conservation Halton signed off on the hazard mapping ahead of both LPAT hearings which was huge!

J. David Leighton, C.E.T.
President
Urbantech® Consulting (Markham, Canada)
November 29, 2024
 

Town of Penetanguishene

As Director of Public Works for the Town of Penetanguishene, I would like to extend my appreciation to Greeland Consulting Engineers for providing exemplary contract administration and construction inspection services for the Penetang Main Street Reconstruction Project. 

The Main Street reconstruction was a huge undertaking for the Town which consisted of: the full reconstruction of 1.4 km of roadway including widening for improved land widths, on-street parking, storm sewer replacement, watermain and sanitary sewer replacement, as well as landscaping and lighting improvements to better serve businesses and residents. The project included significant logistical challenges with respect to the coordination of public access for businesses, and providing workable upgrades to exisiting infrastructure under difficult site constraints and a tight time line. 

As the Contract Administrator and on-site Construction inspector, Greenland always maintained open lines of communication between the Town, Contractor, affected businesses and residents, and promptly, responded to all questions and issues raised by the Contractor, the Town and the public. Greenland's attention to detail throughout the assignment helped ensure the project was completed on-time and under budget. 

Bryan Murray, P. Eng
Director of Public Works
Town of Penetanguishene
February 12, 2019
 

Corporation of the Town of Collingwood (Canada)

RE: Town of Collingwood - Master Stormwater Management Final Report

Your team did a great job conveying the output of your work to the Development Committee last night.  I think the analysis was well understood by Members, and that there is confidence in the approach you have taken to the work.  This topic is very important for Collingwood, and it is great to have this intelligent analysis from which to continue to leap forward.
 
Sincerely,
 
Sonya G. Skinner, P. Eng.
Chief Administrative Officer
Corporation of the Town of Collingwood (Canada)
February 15, 2022
 

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