Abstract:

The Multiple Opening Closing Net and Environmental Sensing System(s) (MOCNESS) deployed during the DEEPEND field program collects data (e.g., pressure, temperature, conductivity, volume filtered, horizontal and vertical velocity, latitude, and longitude)from several sensors while the instrument is in use. These data help characterize the environment and assess the orientation and speed of the MOCNESS. The flow and net angle can be used to calculate the volume of water filtered for each net. The biological data and ship data collected during this cruise are available in GRIIDC datasets R4.x257.226:0001 and R4.x257.226:0003 respectively. Due to an equipment malfunction, MOC data was not collected for trawl #11 at station B250.

Suggested Citation:

Gray Lawson and Travis Richards. 2017. Multiple Opening Closing Net Environmental Sensing System (MOCNESS) instrument data for Cruise DP01 R/V Point Sur in-situ deep seawater and associated fauna, May 1-8, 2015, Viosca Knoll GoM. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/N7FF3QFK

Purpose:

To collect environmental data associated with the biological samples collected in the 10 meter MOCNESS.

Data Parameters and Units:

.PRO files: time - elapsed time (s), pres - pressure (decibars), echo(N/A), temp - temperature (degrees Celsius), theta - water density indice (calculated from depth, temp, and salinity - no units), sal - salinity (percentage), sigmawater - density indice (calculated from depth, temp, and salinity - no units), angle - net angle (degrees), flow(m/s), hzvel - horizontal velocity (m/s), vtvel - verticle velocity (m/s), vol - volume filtered (cubic meters), net(N/A), fluor(N/A), ptran(N/A), oxygen(N/A), Irradcurrent(N/A), Irradiance(N/A) , lat(N/A), lon(N/A) Zero values indicate variable not measured. Data organized into folders named by trawl number and date. .xlsx Files: EntryNum - record ID,TrawlNo - trawl ID, TrawlNo_NetNo - trawl and net #, CruiseName - cruise name, CruiseNo - cruise #,Gear - type of gear, StationID - station ID, SolarCycle - solar cycle (day/night), NetNo - net number, SampleID - sample ID, SampleDate - sample date (DDMMMYY),StartLat - starting lat (dd),StartLon - starting lon (dd),EndLat - ending lat (dd),EndLon - einding lon (dd),TowStartTime_CDT - start time (HH:MM),TowEndTime_CDT - end time (HH:MM),ElapsedTime - trawl duration (HH:MM), MOC10FileName - unique file name,MinDepth - min. depth (m),MaxDepth - max depth (m),DepthRange - depth range (m),DepthCode - depth code, DepthBin - depth bin, MaxWaterDepth - max water depth (m), MaxDeployDepth - max deployemtn depth (m), DepthUnits - depth units,Volume - volume of water (cubic m),VolUnits - volumne units,Quant_or_Meat - trawl purpose,NetMeshSize - net mesh size,NetMeshSizeUnits - net mesh size units,SampPres - type of sample preservation,Comments

Individual Files: