

HYDROLOGY, CATCHMENT & IRRIGATION ANALYSIS
Grace GIS delivers expert hydrological modelling and spatial analysis to support effective water resource management, flood resilience, and irrigation planning. Our services are trusted by water authorities, councils, and regional planning bodies to provide accurate, high-resolution insights for sustainable water and land use.
Key Services
Grace GIS combines technical expertise with advanced geospatial tools to provide decision-ready outputs that guide water security, environmental protection, and sustainable land use across Australia and beyond.

Catchment Delineation & Modelling

Sediment & Land Use Impact Mapping

Hydrological Flow & Water Yield Analysis
Using LiDAR and elevation data to accurately define natural and engineered catchments for water supply, drainage, and flood planning. Catchment delineation for water diversion feasibility studies.
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Hughenden Irrigation Project - Prelim Catchment Studies
Blacktown City Council - Hydro
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Identification and geolocation of speed humps, signage, crossings, and other road features for safety assessments and planning upgrades.
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Modelling surface runoff, inflows, and water availability using tools like SWAT and rainfall/soil datasets to inform dam site selection, yield estimation, and stormwater planning.
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Irrigation Mapping & Planning
Identifying and mapping gravity-fed irrigation zones, infrastructure layouts, and diversion feasibility to support agricultural and rural development projects. ​​Estimating water yield for dam site selection. Gravity-fed irrigation mapping for efficient distribution.
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Blacktown City Council - Hydro​
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Climate & Rainfall Data Integration
Incorporating long-term climate and rainfall datasets into hydrological and catchment models to provide a more accurate, future-ready understanding of water systems. This involves sourcing and analysing historical climate records, alongside soil and land use information to simulate real-world conditions over time.
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