Environment and Scientific Coordinators Toolbox | Contingency Plans and Management | Inter Governmental Agreement
Supporting Documents | General Information | Reports, Fact Sheets and Brochures | Annual Reports | Restricted Access
Dispersants Information | Oil Spill Response Atlas | Oil Spill Trajectory Model | Chemical Spill Trajectory Model | Oiled Wildlife
Chemical Spill Trajectory Model (CHEMMAP)
The Chemical Spill Trajectory Model (CHEMMAP) is a decision support tool used to predict the fate and trajectory of chemicals in the water column and atmosphere. It is designed to model chemical movements in three dimensions based on physical and chemical properties, together with current and wind data. CHEMMAP simulates various chemical components including surface and subsurface dynamics; atmospheric transportation; dissolution, adsorption and sedimentation, and shoreline fate. In addition, CHEMMAP has a probabilistic (stochastic) component that may be used in contingency planning to predict the most likely fate of chemicals based on historic wind and current data.CHEMMAP may be used as a decision support tool in:
- Marine chemical spill response;
- Exercises, drills and contingency planning;
- Spill risk assessment and assessment of probable contaminant concentrations; and
- Environmental and human impact assessment.
CHEMMAP integrates a hydrodynamic model (HYDROMAP) and ESRI GIS platform, and allows the operator to use a wide variety of wind, current and bathymetric data formats. The model draws on a built-in chemical database to simulate the fate of a wide range of hazardous and noxious substances. The operator may also update the chemical and environmental parameters to match actual incident conditions.
Note: CHEMMAP will only track one chemical per output (no chemical mixtures). In addition, CHEMMAP will not model degradation products, and will not model reactions with water, oxygen, acids/bases or other chemical/constituents in the water.
To request a CHEMMAP output, please fill out the online CHEMMAP Request Form.