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.

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

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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

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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)

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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.

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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.

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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.

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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.