©2020 Biological and Chemical Oceanography Data Management Office.Funded by the U.S. National Science Foundation
©2020 Biological and Chemical Oceanography Data Management Office.The CTD part of the MOCNESS includes 1) a pressure (depth) sensor which is a thermally isolated titanium strain gauge with a standard range of 0-5000 decibars full scale, 2) A Sea Bird temperature sensor whose frequency output is measured and sent to the surface for logging and conversion to temperature by the software in the MOCNESS computer (The system allows better than 1 milli-degree resolution at 10 Hz sampling rate), and 3) A Sea Bird conductivity sensor whose output frequency is measured and sent to the surface for logging and conversion to conductivity by the software in the computer (The system allows better than 1 micro mho/cm at 10 Hz sampling rate). The data rate depends on the speed of the computer and the quality of the cable. With a good cable, the system can operate at 2400 baud, sampling all variables at 2 times per second. One sample every 4 seconds is the default, although the hardware can operate much faster. (From The MOCNESS Manual)
| Dataset Name | PI-Supplied Description | PI-Supplied Name |
|---|---|---|
| CTD data collected during MOCNESS hauls in the Georges Bank from 1993-1997 on the R/V Albatross IV, R/V Endeavor, R/V Oceanus, R/V Seward Johnson (GB project) | CTD MOCNESS | |
| CTD data collected during MOCNESS hauls in the Georges Bank from 1993-1999 on the R/V Albatross IV, R/V Endeavor, R/V Oceanus, R/V Seward Johnson (GB project) | The MOCNESS-1 has nine rectangular nets (1m x 1.4 m) which are opened and closed sequentially by commands through conducting cable from the surface (Wiebe et al., 1976). In all three systems, "the underwater unit sends a data frame, comprised of 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. Temperature (to approximately 0.01 deg C) and conductivity are measured with SEABIRD sensors. Normally, a modified T.S.K.-flowmeter is used. Both the temperature and conductivity sensors and the flowmeter are mounted on top of the frame so that they face horizontally when the frame is at a towing angle of 45deg. Calculations of salinity (to approximately 0.01 o/oo S), potential temperature (theta), potential density (sigma), the oblique and vertical velocities of the net, and the approximate volume filtered by each net are made after each string of data has been received by the computer." (Wiebe et al., 1985) In addition, data were collected from four other sensors attached to the frame: the Transmissometer, the Fluorometer, the Downwelling light sensor, and the Oxygen sensor. A SeaBird underwater pump was also included in the sensor suite. | CTD MOCNESS |
| CTD data collected during MOCNESS hauls from ARSV Laurence M. Gould, RVIB Nathaniel B. Palmer LMG0104, LMG0106, LMG0203, NBP0103, NBP0104, NBP0202, NBP0204 in the Southern Ocean from 2001-2002 (SOGLOBEC project) | CTD MOCNESS | |
| CTD data collected during MOCNESS-1 deployments from ARSV Laurence M. Gould LMG0602 in the Southern Ocean from February to March 2006 (SouthernSalps project) | CTD MOCNESS | |
| MOCNESS CTD data from the Gulf of Maine collected on R/V Endeavor and R/V Connecticut from July to November 2010 (Krill GoME project) | CTD MOCNESS | |
| CTD data collected from MOCNESS hauls on R/V Oceanus and R/V New Horizon in the western North Atlantic from 2011-2012 (OAPS project) | CTD MOCNESS | |
| CTD data from MOCNESS tows taken in the Antarctic in 2011 from ARSV Laurence M. Gould LMG1110 in the Southern Ocean from November to December 2011 (Salp_Antarctic project) | "The MOCNESS was provided by Raytheon and it was equipped with nine 335-mesh nets. In addition to the standard temperature and conductivity probes it was also equipped with a beta-type strobe unit provided by BESS Co. and a Benthos 200 kHz altimeter. The underwater unit used through the cruise was #156." p.33 of Cruise Report LMG1110. | CTD MOCNESS |
| CTD data collected during MOCNESS-10 deployments from ARSV Laurence M. Gould LMG0602 in the Southern Ocean from February to March 2006 (SouthernSalps project) | CTD MOCNESS | |
| CTD data collected during MOCNESS tows with both 1m2 and 10m2 mouth openings from RVIB Nathaniel B. Palmer NBP1002 in the Western Antarctic Peninsula from March to May 2010 (Antarctic_micronek project) | CTD MOCNESS | |
| Ichthyoplankton density and plankton displacement volume data collected using MOCNESS plankton nets on the NSF RAPID Plankton Cruises in the Northwestern Gulf of Mexico in 2017-2018 | MOCNESS Plankton Net (1x2m), equipped with 10 nets of 333µm mesh widths, in situ CTD and online flowmeters. Nets # 1, 5, and 7 were analyzed for this dataset. | in situ CTD |
| MOCNESS tow CTD data from R/V Oceanus OC415-01, OC415-03 cruises in the Sargasso Sea in 2005 (EDDIES project) | CTD MOCNESS | |
| Species composition via MOCNESS and associated CTD information collected on R/V Hugh R. Sharp (HRS1316, HRS1317) in the Chesapeake Bay from August to September in 2013. | Used for water sampling | CTD MOCNESS |
| MOCNESS-CTD data from R/V Atlantis AT21-02 and AT26-15 in the Barbados seeps and Gulf of Mexico, from 2012 and 2014 (SEEPC project) | ||
| The MOCNESS was equipped with 10 nets of 1 m^2 mouth opening and 333 µm mesh size, a SeaBird SBE9+ CTD, a SeaBird SBE 43 DO sensor, and flow meter and angle sensors. | MOCNESS, SeaBird SBE9+ CTD | |
| A MOCNESS system was used for zooplankton and fish sampling and was equipped with 10 nets of 1 m^2 mouth opening and 333 µm mesh size, a SeaBird SBE9+ CTD, a SeaBird SBE 43 DO sensor, and flow meter and angle sensors. | MOCNESS, SeaBird SBE9+ CTD | |
| MOCNESS net data from R/V Sally Ride cruise SR2114 in the Eastern Tropical Pacific from December 2021 to January 2022 | The MOCNESS was equipped with 10 nets of 1 m^2 mouth opening and 333 µm mesh size, a SeaBird SBE9+ CTD, a SeaBird SBE 43 DO sensor, and flow meter and angle sensors. | MOCNESS, SeaBird SBE9+ CTD |