On the Introduction of Special Sensor Microwave Imager (SSM/I) Data into the Andes Acoustic Ambient Noise Model

• Main Author: Smith, P. M.
• Other Authors: NAVAL OCEANOGRAPHIC AND ATMOSPHERIC RESEARCH LAB STENNIS SPACE CENTER MS
• Format: Text
• Language: English
• Published: 1991
• Subjects: Physical and Dynamic Oceanography; Active & Passive Radar Detection & Equipment; Acoustics; *SOUND TRANSMISSION; *SEA STATES; *RADAR IMAGES; OCEAN SURFACE; STATISTICS; INTENSITY; SURFACE ROUGHNESS; MICROWAVE EQUIPMENT; DISPLAY SYSTEMS; IMAGES; RECEIVERS; INFORMATION RETRIEVAL; SLOPE; COMPUTER GRAPHICS; MAPS; AMBIENT NOISE; COMPUTER OPERATORS; CONSOLES; WAVES; TRANSMISSION LOSS; VISUAL AIDS; GRAY SCALE; WATER VAPOR; SEA ICE; RECONNAISSANCE SATELLITES; CONTOURS; DETECTORS; SOUND GENERATORS; ALGORITHMS; TRANSFER FUNCTIONS; PASSIVE MICROWAVE; SBI1; FISCAL YEAR 91; ANDES(AMBIENT NOISE DIRECTIONAL ESTIMATION SYSTEM); PE63704N; WUDN258025; Sea ice
• Online Access: http://www.dtic.mil/docs/citations/ADA236786; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA236786

The Special Sensor Microwave Imager (SSM/I) provides nearly global data coverage relating to sea surface roughness once every 24 hours. A quadratic retrieval algorithm is developed that can retrieve foam coverage and root-mean- square (rms) wave slope statistics from the SSM/I data: I show how that roughness product can be interpreted as a sound source for ambient noise. The Ambient Noise Directional Estimation System (ANDES) is modified for demonstration purposes to accept the SSM/I data in the form of maps of rms wave slope. A crude transfer function, which relates wave slope to sound source intensity, is derived using historical sonobuoy ambient noise data. Presentation graphics software is developed that presents a computer console operator with a visual display of receiver location, transmission loss contours, and ANDES omnidirectional noise results overlaying the grey-scale map of rms wave slope used to force the model.