Studies of Sea Ice Thickness and Characteristics from an Arctic Submarine Cruise. Phase 3

• Main Author: Cowan, Andrew
• Other Authors: SAIC POLAR OCEANS ASSOCIATES CAMBRIDGE (UNITED KINGDOM)
• Format: Text
• Language: English
• Published: 1989
• Subjects: Snow; Ice and Permafrost; *THICKNESS; *SEA ICE; *SCANNING SONAR; AIRBORNE; MICROWAVE EQUIPMENT; ELECTRICAL PROPERTIES; REMOTE DETECTORS; AERIAL CAMERAS; STATISTICAL ANALYSIS; CHARTS; RADIOMETERS; UNITED KINGDOM; ROUGHNESS; SONAR SIGNALS; MULTICHANNEL; OCEANOGRAPHY; DIGITAL RECORDING SYSTEMS; RADAR SCANNING; NARROW BEAMS(RADIATION); ARCTIC OCEAN; ACOUSTIC BEAMS; OCEAN SURFACE; AIRCRAFT; OPTICAL RADAR; SUBMARINES; Arctic; Arctic Ocean; Ice; permafrost; Sea ice
• Online Access: http://www.dtic.mil/docs/citations/ADA216738; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA216738

In May '87 a unique collaborative experiment took place in the Arctic Ocean, when a British sub and two remote sensing aircraft cooperated in concurrent profiling and imaging of the upper and lower sea ice surfaces along the same track. The sub was equipped with a 780 upward-looking sonar system (narrow beam, 48kHz) feeding chart and digital recorders, and an EDO Western 602 sidescan sonar towfish (100kHz) feeding and EDO 706 sidescan mapping system. The two remote sensing aircraft comprised: (a) A NASA P-3A equipped with i) Advanced Multichannel Microwave Radiometer (AMMR) with 37GHz & 18GHz dual polarised channels and 21GHz vertically polarised channel; ii) Electrically Scanning Microwave Radiometer (ESMR) operating at 19GHz; iii) Airborne Oceanographic Lidar (AOL) iv) PRT-5 infrared radiometer; v) Aerial cameras and video; (b) A cessna Conquest of Intera Technologies Ltd., Calgary, equipped with the Intera STAR-2 X-band HH-polarised synthetic aperture radar (SAR), giving a 63km swath width. The experiment provided unique opportunities for individual & comparative statistical analyses of ice thickness and roughness. This report describes analysis carried out during Phase 3 of the ONR-funded project to interpret data from this experiment. Great Britain.