RRS Discovery D46_leg3
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS Discovery (74E3) |
| Cruise identifier | D46_leg3 |
| Cruise period | 1972-05-25 — 1972-05-30 |
| Status | Completed |
| Port of departure | Plymouth, United Kingdom |
| Port of return | Barry, United Kingdom |
| Purpose | Research |
| Objectives | Leg 3 of 3 of D46
1) Improvements to the suite of routine meteorological sensors on board 2) Preliminary work on cloud cover photography and balloon following in connection with the forth coming JASIN expedition 3) Test of the telesounder equipment to check the accuracy of the bathymetric measurements under good conditions |
| Chief scientist | M J Tucker (National Institute of Oceanography) |
| Cruise report |  (0.99 MB) |
| Ocean/sea areas | |
| General | Bristol Channel |
| Specific | Start Bay, Tor Bay, Mevagissy Bay, Eddystone, Dodman Point, area between Scillies and Lands End |
| Track charts | (0.02 MB) |
| Measurements | |
| Meteorology | |
| Other meteorological measurements | Quantity: activity duration in hours = 65 Description: Recording was started at 1935GMT on the 27th May and continued until 1221GMT on the 30th May of the f.m thermometers installed at various points on the ship. They were recorded on a 5-chnnel counter-logger. The accumulated one second count was sampled at one minute intervals, and the time of each observation was also logged.Spot checks of the output frequencies were made at intervals throughout the recording time. |
| Geology and geophysics | |
| Long/short range side scan sonar | Quantity: number of surveys = 3 Description: 38 kHz side-scan sonar survey carried near the Manacles area, between Dodman Point and the Eddystone, and Scillies and Lands End. |
