ADIOS2

ADIOS2 (Automated Data Inquiry for Oil Spills) is an oil weathering model that incorporates a database containing more than a thousand crude oils and refined products, and provides quick estimates of the expected characteristics and behavior of oil spilled into the marine environment. The predictions it makes, presented as both graphics and text, are designed to help answer questions that typically arise during spill response and cleanup. For example,

• By predicting change in an oil's viscosity (resistance to flow) over time, ADIOS2 offers an answer to the question: Can the oil still be dispersed with chemical dispersants?

• By predicting the rate of increase in an oil's water content over time, ADIOS2 offers an answer to questions like: If 1,000 gallons of crude oil has spilled, will more than 1,000 gallons of oil-and-water mixture need to be cleaned up and disposed of? How much more?

ADIOS2 includes new models to estimate the effects of common cleanup techniques such as chemically dispersing, skimming, or burning the oil, and it accounts for environmental processes not included in the previous version, such as sedimentation. It also includes an expanded online help and electronic manual.

The ADIOS2 database includes estimates of the physical properties of oils and products. ADIOS uses this information to predict changes in an oil's properties once it has spilled. The database was compiled from different sources, including Environment Canada, the U.S. Department of Energy, and industry.

ADIOS uses mathematical equations and information from the database to predict changes over time in the density, viscosity, and water content of an oil or product, the rates at which it evaporates from the sea surface and disperses into the water, and the rate at which an oil-in-water emulsion may form. It was designed to make use of as little information as possible, and to use information that can quickly be estimated or obtained in the field, such as wind speed(s), wave heights, water temperature, and salinity or density, the type and amount of oil or product spilled, and the rate and duration of the spill.

Note: ADIOS does not run on Macintosh computers with Intel microprocessors. The Macintosh version of ADIOS is a Mac Classic application.

Questions and Comments

ADIOS2 Specialist To learn more about ADIOS2 or comment on it, contact our ADIOS2 Specialist.

Downloads

ADIOS2 Fact Sheet A little more information about ADIOS2, along with some screenshots. (Document format: PDF, size: 721.8 K)

Related FAQs

ADIOS2 Answers to questions about OR&R;'s oil weathering model, ADIOS2.