Figure 34. Universal current measuring device invented by Otto Petterson in 1904. This instrument was intended to measure current and temperature, as well as collect plankton. Left: in operation. Right: after measurement. This instrument was first tested in the Skagerrak and then in the Baltic Sea between 30 and 200 meters water depth.
Photo Category: Oceanography - Historical instruments
421 x 640 | 35.11 KB | |
841 x 1280 | 123.69 KB | |
1445 x 2201 | 382.67 KB |
Added On | 18th October 2015 |
Viewed | 17 viewed |