Water is the fundamental element - the HydroCore - that sustains Earth’s entire ecosystem. At HydroCore, we develop high-precision watershed models tailored to diverse spatial and temporal scales, providing scientific solutions for sustainable and intelligent water management.
Water is the lifeblood of our planet, yet human activities and climate change are increasingly disrupting the natural equilibrium of hydrological cycles. These distortions—manifesting as frequent flooding, streamflow depletion, and water quality degradation—demand a sophisticated scientific response.
Watershed modeling stands at the forefront of this challenge. As a high-fidelity computational tool, it mathematically simulates complex hydrological processes and pollutant transport. By enabling precise spatio-temporal analysis of water dynamics, our models provide the critical evidence-based insights required for sustainable and comprehensive watershed management.
About HydroCore
For over 20 years, HydroCore has spearheaded the development of proprietary watershed models specifically tailored to the unique environmental characteristics of East Asia. Our diverse product lineup spans various spatial and temporal scales, providing optimized modeling solutions precisely aligned with the specific environmental features and research objectives of each study area. By integrating advanced simulations, we predict future hydrological and water quality variability and scientifically propose optimal management strategies tailored to the unique dynamics of each watershed.
Technical Excellence & Methodology
To ensure high-fidelity evaluation, HydroCore’s models discretize watersheds into uniform square grids, simulating hydrological processes and pollutant behavior based on rigorous physical equations.
A key differentiator of our technology is its specialized capacity for East Asian agricultural modeling. Our models simulate complex runoff control mechanisms based on paddy levee and drainage heights, as well as dynamic irrigation and fertilizer application aligned with rice growth stages. For urban environments, we incorporate sophisticated modules for pollutant accumulation on impervious surfaces and detailed simulations of both separated and combined sewer systems.
Key Features of HydroCore Watershed Models
Uniform Square Grids: Watersheds are divided into uniform square grids to maintain consistency in evaluation.
Vertical Stratification: Each grid is vertically composed of soil layers and aquifers.
Explicit Carbon Simulation: Carbon cycles are explicitly modeled within the system.
Nutrient Categorization (C, N, P): Carbon, Nitrogen, and Phosphorus are categorized into dissolved and particulate forms by particle size, and subdivided into biodegradable and non-biodegradable types based on decomposition rates.
Sediment Differentiation: Sediment transport is simulated by classifying particles into clay, silt, fine sand, and coarse sand.
Agricultural Runoff Control: Modeling of runoff control regulated by paddy levees and drainage outlets.
Growth-Stage Irrigation: Simulation of irrigation based on the specific growth stages of rice.
Urban Surface Modeling: Simulation of rainfall runoff and pollutant accumulation on impervious urban surfaces.
Urban Network Systems: Modeling of separated/combined sewer systems, including interception and overflow (CSOs/SSOs) processes.
For more detailed information on each model, please click on the model symbols on our Watershed Models page or refer to the Company Brochure provided below.
Establishment of Digital Watershed Maps: Hydrological Spatial Information for Forest Watersheds (II) / Korea Forest Service
Research on the Evaluation of Sanitary Inspection Points and Pollutant Dispersion Prediction Modeling: Gangjin Bay / National Institute of Fisheries Science
Development of Intelligent Turbid Water Prediction and Aquatic Ecosystem Management Technology in Response to Extreme Rainfall (VI) / Korea Environmental Industry & Technology Institute
Study on Marine Environmental Improvement of Sihwa Lake (2025) / Ministry of Oceans and Fisheries
Study on the Development of Digital Twin Core Technologies for Integrated Water Resources Management (IV) / National Institute of Environmental Research
Hydrological Spatial Information for Forest Watersheds (I) / Korea Forest Conservation Association
Study on the Development of Digital Twin Core Technologies for Integrated Water Resources Management (III) / National Institute of Environmental Research
Study on Marine Environmental Improvement of Sihwa Lake (2024) / Ministry of Oceans and Fisheries
Development of Intelligent Turbid Water Prediction and Aquatic Ecosystem Management Technology in Response to Extreme Rainfall (V) / Korea Environmental Industry & Technology Institute
Research on the Evaluation of Sanitary Inspection Points and Pollutant Dispersion Prediction Modeling: Jaran Bay and Saryangdo Island / National Institute of Fisheries Science
Development of Intelligent Turbid Water Prediction and Aquatic Ecosystem Management Technology in Response to Extreme Rainfall (IV) / Korea Environmental Industry & Technology Institute
Development of Intelligent Turbid Water Prediction and Aquatic Ecosystem Management Technology in Response to Extreme Rainfall (III) / Korea Environmental Industry & Technology Institute
Research on the Evaluation of Sanitary Inspection Points and Pollutant Dispersion Prediction Modeling in Shellfish Production Areas (III) / National Institute of Fisheries Science
Study on the Development of Digital Twin Core Technologies for Integrated Water Resources Management (II) / National Institute of Environmental Research
Research on Terrestrial-Marine Carbon Flux and Sub-Seabed Carbon Sequestration / Private Sector
Development of Long-Term Integrated Surface Water–Groundwater Runoff Prediction Technology for Aquatic Ecosystems in Response to Extreme Rainfall (III) / Korea Environmental Industry & Technology Institute
Study on Marine Environmental Improvement of Sihwa Lake (2023) / Ministry of Oceans and Fisheries
Development of a Physically-Based Distributed Model for Watershed Hydrologic Cycle and Water Quality Simulation (I) / National Institute of Environmental Research
Study on the Introduction of TOC-Based Total Maximum Daily Load (TMDL) System (I): Goal Setting and Management Plan Establishment for Geumho River and Nam River Watersheds / National Institute of Environmental Research
Research on the Evaluation of Sanitary Inspection Points and Pollutant Dispersion Prediction Modeling in Shellfish Production Areas (II) / National Institute of Fisheries Science
Development of Long-Term Integrated Surface Water–Groundwater Runoff Prediction Technology for Aquatic Ecosystems in Response to Extreme Rainfall (II) / Korea Environmental Industry & Technology Institute
Research on Terrestrial-Marine Carbon Flux and Sub-Seabed Carbon Sequestration / Private Sector
Development of Intelligent Turbid Water Prediction and Aquatic Ecosystem Management Technology in Response to Extreme Rainfall (II) / Korea Environmental Industry & Technology Institute
Study on Marine Environmental Improvement of Sihwa Lake (2022) / Ministry of Oceans and Fisheries
Study on Organic Matter Mass Balance Analysis and Establishment of TOC Management Plans for the Daecheong Reservoir Watershed (II) / Geum River Basin Management Committee
Development and Implementation of Water Quality Models to Support the TOC Load Management System / National Institute of Environmental Research
Feasibility Study on Establishing Watershed Water Management Technology Using Digital Twin Technology / Private Sector
Study on Organic Matter Mass Balance Analysis and Establishment of TOC Management Plans for the Daecheong Reservoir Watershed (I) / Geum River Basin Management Committee
Research on the Evaluation of Sanitary Inspection Points and Pollutant Dispersion Prediction Modeling in Shellfish Production Areas (I) / National Institute of Fisheries Science
Development of Intelligent Turbid Water Prediction and Aquatic Ecosystem Management Technology in Response to Extreme Rainfall (I) / Korea Environmental Industry & Technology Institute
Development of Indicators and Evaluation Methodology for the Water Purification Function of Ecosystem Services / National Institute of Ecology
Basic Research on the Delineation of Water Quality Management Units Reflecting Agricultural Irrigation and Drainage Networks (II) / Geum River Basin Management Committee
Watershed Modeling to Support the Development of the Basic Master Plan for Total Pollutant Load Management in the Sihwa Lake Coastal Area / Korea Institute of Ocean Science & Technology
Development of Long-Term Integrated Surface Water-Groundwater Runoff Prediction Technology for Aquatic Ecosystems in Response to Extreme Rainfall (I) / Korea Environmental Industry & Technology Institute
Basic Research on the Delineation of Water Quality Management Units Reflecting Agricultural Irrigation and Drainage Networks (I) / Geum River Basin Environmental Office
Study on Marine Environmental Improvement of Sihwa Lake (2020) / Korea Institute of Ocean Science & Technology
Fundamental Research for Establishing a Prediction Model for the Dispersion of Land-Derived Pathogenic Bacteria / National Institute of Fisheries Science
Evaluation of Hydrological Ecosystem Services and Mapping / National Institute of Ecology
Survey on the Operation of Agricultural Weirs and Establishment of Improvement Plans in the Geum River Basin / Geum River Basin Management Committee
Investigation of Fertilizer Usage in Croplands and Quantification of Nutrient Loading from Watersheds Draining into the Yellow Sea / Korea Marine Environment Management Corporation
Model-Based Estimation of Contribution Rates from Land-Derived Pollution Sources to the Tongyeong–Jaran Bay Basins / National Institute of Fisheries Science
Study on Marine Environmental Improvement of Sihwa Lake (2019) / Korea Institute of Ocean Science & Technology
Study on Establishing a Healthy Integrated Water Management System from Small Streams to Estuaries / Ministry of Environment
Study on Marine Environmental Improvement of Sihwa Lake (2018) / Korea Institute of Ocean Science & Technology
Estimation of Land-Based Nutrient Loads Entering Major Habitats in the Yellow Sea / Korea Marine Environment Management Corporation
Study on the Development of an Integrated Estuary Management System (V) / Ministry of Oceans and Fisheries
Prediction of Non-Point Source Pollution Loads Using Watershed Models for the Tongyeong and Jaran Bay Watersheds / National Institute of Fisheries Science
Development of Ecosystem Service Assessment Maps Based on Hydrological Modeling / National Institute of Ecology
Analysis of International Case Studies for the Improvement of Livestock Manure Management Systems / National Institute of Environmental Research
Technical Assessment of the Coastal Total Pollutant Load Management (TPLM) for the Songsan Green City Development Project / Cheongma Co., Ltd.
Study on the Development of an Integrated Estuary Management System (IV) / Ministry of Oceans and Fisheries
Study on Marine Environmental Improvement of Sihwa Lake (2017) / Ministry of Oceans and Fisheries
Non-Point Source (NPS) Pollution Modeling: Jaran Bay Watershed / National Institute of Fisheries Science
Support for the 6th Revision of the Environmental Impact Assessment (EIA) for the Sihwa Multi-Techno Valley (MTV) Development Project / Hyein ENC
Project for the Improvement of Groundwater Quality Management Regarding Nitrate Nitrogen in Agricultural and Livestock Areas (I) / National Institute of Environmental Research
Study on the Fate and Management of Forest-Derived Refractory Organic Matter in Reservoirs Used as Drinking Water Sources (III) / Geum River Environment Research Center
Study on the Development of an Integrated Estuary Management System (III) / Ministry of Oceans and Fisheries
Investigation of Groundwater Contamination Status and Background Concentrations in Livestock Complex Areas (2016) / National Institute of Environmental Research
Watershed Modeling for the Management of Land-Based Pollution Sources in Gangjin Bay / National Institute of Fisheries Science
Study on Marine Environmental Improvement of Sihwa Lake (2016) / Ministry of Oceans and Fisheries
Study on the Development of an Integrated Estuary Management System (II) / Ministry of Oceans and Fisheries
Study on Marine Environmental Improvement of Sihwa Lake (2015) / Ministry of Oceans and Fisheries
Study on the Evaluation and Control of Environmental Impacts on Plant Ecology, Atmosphere, and Water Quality in Mountainous Pastures / Rural Development Administration
Study on Improvement Strategies for the Quantification Framework of Non-Point Source (NPS) Pollutants / Ministry of Environment
Scenario Analysis for Agricultural NPS Pollution Reduction in the Saemangeum Basin Using Watershed Models / Rural Research Institute
Investigation of Groundwater Contamination Status and Background Concentrations in Livestock Complex Areas (2015) / National Institute of Environmental Research
Support for the 6th Revision of the Environmental Impact Assessment (EIA) for the Sihwa Multi-Techno Valley (MTV) Development Project / Hyein ENC
Study on the Development of an Integrated Estuary Management System (I) / Ministry of Oceans and Fisheries
Investigation of Groundwater Contamination Status and Background Concentrations in Livestock Complex Areas (2014) / National Institute of Environmental Research
A Study on the Modeling of the Saemangeum Lake Basin Using Distributed Watershed Models / Rural Research Institute
Technical Services for Preparing the Amendment Report on Coastal Total Pollution Load Management for the Sihwa MTV Project / Korea Land & Ocean Environmental Technology Co., Ltd.
Research Services for the Marine Environmental Improvement Project of Sihwa Lake: Watershed Modeling for the Total Pollution Load Management of the Sihwa Lake Coastal Area (II) / Ministry of Land, Transport and Maritime Affairs
Estimation of Land-Based Pollution Loads for the Masan Bay Special Management Area Using Distributed Watershed Models / Korea Institute of Ocean Science and Technology
Study on the Development of an Integrated Estuary Management System (II) / Ministry of Land, Transport and Maritime Affairs
Development of a Watershed Model for the Fate and Transport of Refractory Organic Matter and Establishment of Management Strategies (II) / Han River Environment Research Center
Research Services for the Marine Environmental Improvement Project of Sihwa Lake (I) / Ministry of Land, Transport and Maritime Affairs
Environmental Impact Assessment and Model Development for Land Application of Livestock Manure (V) / Rural Development Administration
Study on the Development of an Integrated Estuary Management System (I) / Ministry of Land, Transport and Maritime Affairs
Development of a Watershed Model for the Fate and Transport of Refractory Organic Matter and Establishment of Management Strategies (I) / Han River Environment Research Center
Research Services for the Marine Environmental Improvement Project of Sihwa Lake: Non-Point Source Pollution Modeling / Ministry of Land, Transport and Maritime Affairs
Investigation of Turbid Water Impacts During River Construction and Study on Mitigation Measures / Ministry of Land, Transport and Maritime Affairs
Environmental Impact Assessment and Model Development for Land Application of Livestock Manure (IV) / Rural Development Administration
Study on Management Strategies for Non-Point Source (NPS) Pollution in the Geum River Basin / Korean Society on Water Environment
Research Services for the Marine Environmental Improvement Project of Sihwa Lake / Ministry of Land, Transport and Maritime Affairs
Environmental Impact Assessment and Model Development for Land Application of Livestock Manure (III) / Rural Development Administration
Research Services for the Marine Environmental Improvement Project of Sihwa Lake / Ministry of Land, Transport and Maritime Affairs
Watershed Modeling for the Management of Land-Based Pollution Sources / National Institute of Fisheries Science
Development of Decision-Making Methodologies to Support Water Environment Policies / Environment Science & Technology Co., Ltd.
Environmental Impact Assessment and Model Development for Land Application of Livestock Manure (II) / Rural Development Administration
Research Services for the Marine Environmental Improvement Project of Sihwa Lake / Ministry of Oceans and Fisheries
Environmental Impact Assessment and Model Development for Land Application of Livestock Manure (I) / Rural Development Administration
Development of a Sediment Transport Model for Sizing NPS Pollution Reduction Facilities / Korea Institute of Civil Engineering and Building Technology
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1104 Byucksan-6, Gasan, Geumcheon, Seoul 08501, Republic of Korea
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