RRS John Murray JM2B/81
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS John Murray (74MJ) |
| Cruise identifier | JM2B/81 |
| Cruise period | 1981-03-25 — 1981-03-27 |
| Status | Completed |
| Port of departure | Plymouth, United Kingdom |
| Purpose | Research |
| Objectives | 1) To study the relationships between light, chlorophyll, primary production and flourescence.
2) To provide 'sea truth' data for the Undulating Oceanographic Recorder on the P R Route. |
| Chief scientist | Michael B Jordan (Institute of Marine Environmental Research, Plymouth) |
| Cruise report |  (0.06 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) | Description: cont.over 60 nm |
| CTD stations | Quantity: number of stations = 7 |
| Optics (eg underwater light levels) | Quantity: number of stations = 7 |
| Chemical oceanography | |
| Nitrate | Description: cont.over 60 nm |
| Biology and fisheries | |
| Primary productivity | Description: cont.over 60 nm |
| Phytoplankton | Quantity: number of stations = 7 Description: identification,distribution |
