Over the past several years Defence R&D Canada - Atlantic has been building a flexible system to provide ocean acoustic predictions to a wide variety of consumers. Called the Environment Modeling Manager (EMM), this system utilizes a client/server paradigm where various tactical decision aids, combat system algorithms, and sonar operators can register for specific acoustic information. The results are then provided on either a once-only or periodic update basis. Based on the CORBA standard, a server satisfies the requests of registered clients by running one or more ocean acoustic prediction models, such as Bellhop or the Allied Environmental Support System. Alternatively, certain prediction data might be based on through-the-sensor measurement. Important but compute-intensive processing, such as the signal excess over an area of ocean, can be scheduled to run during idle time or on a dedicated prediction engine, allowing a client request to be immediately satisfied with the latest update.
