Arctic Ice Dynamics Experiment (AIDJEX) (1975-1976)

BRIEF

During the Summer of 1975 the Arctic Ice Dynamics Joint Experiment (AIDJEX) maintained four manned camps on ice floes in the Arctic Ocean. Instrumentation located at those camps, or deployed on floating data buoys, recorded surface and geostrophic winds, ocean current velocity at 2 and 30 meter depths, and camp (ice floe) position. Data are archived as daily average values for each camp, as well as ice velocity and smoothed positions. Surface pressure and geostrophic wind data are also available at 6-hourly intervals.

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.

ATTRIBUTES

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
                                             

DATACENTER

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
                                             

PERSONNEL

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
                                             

REFERENCE






   **  No Bibliographic Reference Information supplied for this Entry  **
                                             

SUP_MENU

   1. Source: NIMBUS
  
   2. Source: NOAA 4
  
   3. Source: NOAA 5
  
   4. Sensor: SALINITY/TEMP/DEPTH (CTD/STD)