Abstract :
A low power, unattended, ice station for collecting data has been developed to collect synoptic environmental data in polar regions for a period of two years. An array of 10 of these ice stations was installed 250-550 nautical miles north of the Alaskan coast during the spring of 1975. In each station, 24 hours worth of the most recent data, made up of eight 32-bit words, are retained in memory for burst transmission to the RAMS (Random Access Measurement System) receiver in the polar orbiting NIMBUS-F satellite. Surface platform location to a CPE of about 5 km is obtained through doppler measurement of the transmitted signal. This program is part of a continuing Arctic Research in Environmental Acoustics (AREA) project sponsored by the Office of Naval Research, and was performed in cooperation with the Arctic Ice Dynamics Joint Experiment (AIDJEX) to study sea ice dynamics and underwater acoustics ambient noise.
Keywords :
Doppler measurement; acoustic noise; oceanographic regions; oceanographic techniques; random-access storage; sea ice; underwater sound; AD 1975; AIDJEX; Alaskan coast; Arctic Ice Dynamics Joint Experiment; Arctic Research in Environmental Acoustics project; Doppler measurement; NIMBUS-F satellite; Office of Naval Research; RAMS receiver; Synrams Ice Station; burst transmission; memory data; polar orbiting satellite; polar regions; random access measurement system receiver; sea ice dynamics; surface platform location; synoptic environmental data; underwater acoustics ambient noise; Acoustic measurements; Arctic; Extraterrestrial measurements; Ice; Random access memory; Read-write memory; Satellites; Sea measurements; Springs; Underwater acoustics;
