Status message

View this page on the new BCO-DMO website: https://demo.bco-dmo.org/instrument/438

Instrument: MOCNESS10

Acronym:
 MOC10
External Identifier:
» skos:closeMatch http://vocab.nerc.ac.uk/collection/L22/current/NETT0097/
Description

The Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS) is based on the Tucker Trawl principle (Tucker, 1951). The MOCNESS-10 (with 10 m^2 nets) carries 6 nets of 3.0-mm circular mesh which are opened and closed sequentially by commands through conducting cable from the surface (Wiebe et al., 1976). In this system, "the underwater unit sends a data frame, comprising temperature, depth, conductivity, net-frame angle, flow count, time, number of open net, and net opening/closing, to the deck unit in a compressed hexadecimal format every 2 seconds and from the deck unit to a microcomputer every 4 seconds" (Wiebe et al., 1985).