Following is a list of freeware that provides tools for investigating and restoring marine resources. Before you access any software or apps, please read our disclaimer and permissions page if you haven't already done so.

Bioassay Quick Reference Table
By California Department of Toxic Substances Control. This guide is the prototype of a project aimed at creating an index of all the standard bioassays currently being used in the scientific community. Initially includes ASTM standards.

CORMIX (Cornell Mixing Zone Expert System)
By Dr. Robert Doneker, Portland State University. CORMIX is a USEPA-supported mixing zone model and decision support system for environmental impact assessment of regulatory mixing zones resulting from continuous point source discharges. The system emphasizes the role of boundary interaction to predict steady-state mixing behavior and plume geometry.

Ecological Structure Activity Relationships (ECOSAR)
By US Environmental Protection Agency, Office of Pollution Prevention and Toxics (OPPT). Used to estimate the toxicity of chemicals used in industry and discharged into water. The program predicts the toxicity of industrial chemicals to aquatic organisms such as fish, invertebrates, and algae by using Structure Activity Relationships (SARs). The program estimates a chemical's acute (short-term) toxicity and, when available, chronic (long-term or delayed) toxicity.

Interactive Tide Charts
By Roy McMorran. Generates tide charts for various locations in the US and Canada.

MINTEQA2 (for DOS)
By US Environmental Protection Agency, Center for Exposure Assessment Modeling (CEAM). MINTEQA2 is a equilibrium speciation model that can be used to calculate the equilibrium composition of dilute aqueous solutions in the laboratory or in natural aqueous systems. The model is useful for calculating the equilibrium mass distribution among dissolved species, adsorbed species, and multiple solid phases under a variety of conditions including a gas phase with constant partial pressures. A data base is included for solving a broad range of problems without need for additional user-supplied equilibrium constants.

OCD
By US Environmental Protection Agency, Office of Air Quality Planning and Standards (OAQPS). Offshore and Coastal Dispersion Model (OCD) is a straight line Gaussian model developed to determine the impact of offshore emissions from point, area or line sources on the air quality of coastal regions. OCD incorporates overwater plume transport and dispersion as well as changes that occur as the plume crosses the shoreline. Hourly meteorological data are needed from both offshore and onshore locations.

SDM
By US Environmental Protection Agency, Office of Air Quality Planning and Standards (OAQPS). Shoreline Dispersion Model (SDM) is a multiple-point Gaussian dispersion model that can be used to determine ground level concentrations from tall stationary point source emissions near a shoreline.

SHARP (for Data General AViiON)
By US Geological Survey (USGS). A quasi-three-dimensional, numerical finite-difference model to simulate freshwater and saltwater flow separated by a sharp interface in layered coastal aquifer systems. Source code is available.

SHARP (for DOS)
By US Geological Survey (USGS). A quasi-three-dimensional, numerical finite-difference model to simulate freshwater and saltwater flow separated by a sharp interface in layered coastal aquifer systems. Source code is available.

SHARP (for Silicon Graphics Indigo)
By US Geological Survey (USGS). A quasi-three-dimensional, numerical finite-difference model to simulate freshwater and saltwater flow separated by a sharp interface in layered coastal aquifer systems. Source code is available.

SHARP (for Sun SPARCstation Solaris)
By US Geological Survey (USGS). A quasi-three-dimensional, numerical finite-difference model to simulate freshwater and saltwater flow separated by a sharp interface in layered coastal aquifer systems. Source code is available.

SHARP (for Windows)
By US Geological Survey (USGS). A quasi-three-dimensional, numerical finite-difference model to simulate freshwater and saltwater flow separated by a sharp interface in layered coastal aquifer systems. Source code is available.

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This page last updated on 9/29/16