Representing the Sea Floor with the Bathymetry Generation Model (BaGM)
NAVAL RESEARCH LAB STENNIS DETACHMENT STENNIS SPACE CENTER MS STENNIS SPACE CENTER United States
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The Bathymetry Generation Model BaGM produces high-resolutions of bathymetry for regions where the dominant sea floor materials is sand. A wide variety of sand wavesripples having either symmetric or asymmetric profiles can be represented, with many specific features that can be represented singly or in combination. Bedform length scales are virtually unlimited, ranging from a few centimeters to thousands of meter. The primary limitations are computer timespace considerations and grid size. The model is organized into modules for ease of use. The model equation has two forms, one for representing bathymetry profiles along a single line of sight and one for representing bathymetric fields, or patches of the sea floor. Although other models and methods that can be used to represent the sea floor exist. BaGM is unique in its flexibility, utility, and variety of sea floor patterns and combinations available. In the examples described in this report, the modules are utilized with an acoustic propagation model to mimic sonar performance.
- Physical and Dynamic Oceanography
- Acoustic Detection and Detectors