1989/90 ROSS SEA OGS EXPLORA CRUISE - IT90RS

• Main Author: Istituto Nazionale Di Oceanografia E Di Geofisica Sperimentale Http//Www.Ogs.Trieste.It
• Format: Article in Journal/Newspaper
• Language: English
• Published: The Antarctic Seismic Data Library System (SDLS) 1995
• Subjects: Antarctic; The Antarctic; Weddell Sea; Austral; Ross Sea; Pacific; Weddell; Antarc*
• Online Access: https://dx.doi.org/10.6092/sdls.26948a80-cba2-11e8-ad51-52540085a32b; https://sdls.ogs.trieste.it/cache/index.jsp?doi=10.6092/SDLS.26948a80-cba2-11e8-ad51-52540085a32b

During Austral Summer1989-90 Istituto Nazionale di Oceanografia e di Geofisica Sperimentale (OGS) conducted marine geological and geophysical surveys in the Weddell Sea, off the Antarctic Penisular and in the Admundsen Sea, in the Ross Sea and in the South Pacific Ocean. During this cruise 2503 km of 60-fold multichannel seismic reflection (MCS) data were collected in the Ross Sea between longitude 163.30 and 173 degrees East, and latitude 73 and 78 degrees South. The surveys were carried out by the research vessel OGS Explora. The 6 second, 2 ms sample rate, digital MCS data were recorded on a SERCEL SN 358 DMX system. The source consisted of an airgun array with a total volume of 22.5 Llitres fired approximately every 25 meters into a 3000 m cable consisting of 120 hydrophone groups towed at an average depth of 12 m. A GPS + TRANSIT satellite receiver system was used for navigation.