RRS Discovery D106
Cruise summary report
|Ship name (ship code)||RRS Discovery (74E3)|
|Cruise period||1979-12-05 — 1979-12-22|
|Port of departure||South Shields, United Kingdom|
|Port of return||San Juan, Puerto Rico|
|Objectives||Cruise 106 was to be a transit leg UK to the Caribbean which was to include reconnaissance sediment sampling and seismic profiling in a mid-Atlantic location for the HLRW research programme, together with testing and modification of various shipboard equipment both on passage and on station during sampling operations.
The time constraint that Discovery was to arrive in Puerto Rico for Christmas meant that the time allowable for deviation southward to the Great Meteor Seamount study area, to meet scientific objectives, was estimated at a maximum of four to five days. Some of the engineering objectives, including renewal and tensioning of winch wires and load telemetry during coring operations, were to be carried out while on station in the study area. Running up and commissioning trials by IOS personnel on the new hydraulic ring main system and tests of crane modifications were to be major engineering objectives of the cruise.
Other engineering objectives were performance tests on the sonar platform and airgun towing depth trails. These were to take place whenever convenient, when the ship's underway speed could be slowed and varied.
A subsidiary cruise objective was the development of a system of shipboard analysis and sampling of sediment cores
|Chief scientist||Robert B Kidd (Institute of Oceanographic Sciences Wormley Laboratory)|
|Cruise report||(0.51 MB)|
|General||North Atlantic Ocean|
|Routine standard measurements||Quantity: track kilometres = 8334|
|Geology and geophysics|
|Multi-beam echosounding||Quantity: track kilometres = 8782|
|Long/short range side scan sonar||Quantity: track kilometres = 7037.6|
Description: 2 KHz profiler. format:line scan recorder
|Magnetic measurements||Quantity: track kilometres = 7037.6|