From April 7th through 10th, 1976 the submarine USS Gurnard participated in the AIDJEX by tranversing 777 nautical miles along three tracklines in the Beaufort Sea, collecting ice thickness data from upward-looking acoustical soundings (sonar). The resulting digital data set is a profile of the sea ice layer, including latitude/longitude, 'ping' interval, surface beam diameter, number of data points, and ice thickness.
The termination of the AIDJEX project also signals the end of the AIDJEX data bank. All validated source data have been submitted to national data banks for permanent retention, together with pertinent documentation. Copies will be distributed from those facilities upon the request of interested scientists.
The data acquired during the AIDJEX main experiment have been validated, for the most part, by the principal investigators and analysts. Copies of finished data sets had been supplied to the data bank in several forms, such as unformatted binary using Fortran or Extended Fortran and in formatted SCOPE Internal Display code. Each set is in the format preferred by the analysts' that created it. The units of common variables also vary with the analysts' preference--for example, time in minutes of the day, dates as year-days of AIDJEX days (starting 1 January 1975), latitude and longitude in decimal degrees, and position in rectangular coordinates originating at the North Pole.
Data presented to national data banks whose computer centers are not compatible with the CDC 6400 have been prepared in fixed block record size, external BCD, or even parity. Documentation is included as part of the headers and data records. Narrative descriptions of the data may be included as part of the header.
Entry_ID: NC00580 (MD Identifier: 616) Temporal Coverage: From: 1975-04-01 TO: 1976-04-30 Geographic Coverage: Southwest Extent: 76N,146W Northeast Extent: 80N,130W Source: BUOYS GROUND OBSERVATIONS NIMBUS NOAA-4 NOAA-5 SHIP>Submarine > USS Gurnard Sensor: ACOUSTIC RADAR BAROMETER HYGROMETER SONAR STD Storage Media: Magnetic Tape Campaign/Project: AIDJEX>Arctic Ice Dynamics Experiment (AIDJEX)" CGC>NOAA Climate and Global Change Program OCSEAP>Outer Continental Shelf Environmental Assessment Project Discipline, Subdiscipline: EARTH SCIENCE > ATMOSPHERE Climatology EARTH SCIENCE > ATMOSPHERE Meteorology EARTH SCIENCE > OCEAN Oceanography Location Keyword: ARCTIC OCEAN>Beaufort Sea SEA SURFACE TROPOSPHERE Parameter Group, Parameter: ATMOSPHERIC COMPOSITION > WATER VAPOR Vapor Pressure ATMOSPHERIC DYNAMICS > ATMOSPHERIC TEMPERATURE ATMOSPHERIC DYNAMICS > HUMIDITY Surface Humidity ATMOSPHERIC DYNAMICS > PRECIPITATION ATMOSPHERIC DYNAMICS > PRESSURE Surface Pressure ATMOSPHERIC DYNAMICS > VISIBILITY ATMOSPHERIC DYNAMICS > WINDS Geostrophic Winds OCEAN COMPOSITION > SALINITY Surface Salinity OCEAN COMPOSITION > SEA ICE OCEAN DYNAMICS > CURRENTS Surface Currents OCEAN DYNAMICS > SEA LEVEL General Keywords: ACOUSTIC SOUNDINGS AZIMUTH BEAUFORT SEA CLIMATOLOGY DEW POINT GEOSTROPHIC WINDS ICE MOVEMENT ICE THICKNESS INFRARED PHOTOS INVERSION HEIGHTS METEOROLOGY NAVSAT SYSTEM OCEAN DEPTH OCEANOGRAPHY PACK ICE PIBAL BALLOON RAMS BUOYS SEA ICE THICKNESS SNOW DEPTH SPECIFIC HUMIDITY SURFACE SURFACE CURRENTS SURFACE HUMIDITY SURFACE PRESSURE SURFACE SALINITY TD-9709 VAPOR PRESSURE WEATHER OBSERVATIONS Revision Date: 1992-12-31
Archive: NOAA/NESDIS/NCDC>National Climatic Data Center, NOAA Data Set ID: TD-9709 Contact: ROSS, THOMAS NOAA/NESDIS/NCDC Federal Building 37 Battery Park Avenue Asheville, NC 28801-2733 USA Electronic Mail: INTERNET> TROSS@NCDC.NOAA.GOV Phone: (704) 271-4994 Archive: NOAA/NESDIS/NGDC>National Geophysical Data Center, NOAA Data Set ID: FE00797 (Arctic Ice Dynamics Joint Experiment (AIDJEX) Wind, Current) FE00806 (Arctic Ice Dynamics Joint Experiment Sonar Ice Profile) Contact: HANSON, CLAIRE National Snow and Ice Data Center (NSIDC) CIRES, Campus Box 449 University of Colorado Boulder, CO 80309 USA Electronic Mail: INTERNET> HANSON@KRYOS.COLORADO.EDU NSI/DECNET> KRYOS::HANSON OMNET> C.HANSON Phone: (303) 492-1834 (303) 492-2468 FAX
Tech Contact: ROSS, THOMAS NOAA/NESDIS/NCDC Federal Building 37 Battery Park Avenue Asheville, NC 28801-2733 USA Electronic Mail: INTERNET> TROSS@NCDC.NOAA.GOV Phone: (704) 271-4994 Entry Author: STEURER, PETER NOAA/NESDIS/NCDC Federal Building 37 Battery Park Avenue Asheville, NC 28801-2733 USA Phone: (704) 271-4445 Information in this entry provided by NOAA/NESDIS/NCDC
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1. Source: NIMBUS 2. Source: NOAA 4 3. Source: NOAA 5 4. Sensor: SALINITY/TEMP/DEPTH (CTD/STD)