RRS John Murray JM3/81
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS John Murray (74MJ) |
| Cruise identifier | JM3/81 |
| Cruise period | 1981-03-31 — 1981-04-09 |
| Status | Completed |
| Port of departure | Plymouth, United Kingdom |
| Port of return | Barry, United Kingdom |
| Purpose | Research |
| Objectives | To survey the thermal structure which occurs in the English Channel along the South coast of England, during the late winter/early spring, and to detect any associated structure in the biological productivity if it existed. |
| Chief scientist | Ian S Robinson (University of Southampton Department of Oceanography) |
| Cruise report |  (0.17 MB) |
| Ocean/sea areas | |
| General | English Channel Irish Sea and St. George's Channel Bay of Biscay |
| Track charts |  |
| Measurements | |
| Physical oceanography | |
| Surface measurements underway (T,S) | |
| CTD stations | Quantity: number of stations = 75 |
| Current meters | Quantity: number of stations = 2 Description: 3 c.m.on each of 2 moorings;sampling interval:1 min.;3,5 days |
| Chemical oceanography | |
| Oxygen | |
| Biology and fisheries | |
| Phytoplankton pigs (eg chlorophyll, fluorescence) | |
| Particulate organic matter (inc POC, PON) | |
| Dissolved organic matter (inc DOC) | |
| Zooplankton | |
| Geology and geophysics | |
| Grab | Quantity: number of samples = 12 |
