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Title Sum-
Institution Dataset ID
   set  data   graph     files  public Continuous MOCNESS data files from R/V Atlantic Explorer cruise AE1918 during July 2019    ?     I   M   background (external link) RSS Subscribe BCO-DMO bcodmo_dataset_781545

The Dataset's Variables and Attributes

Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL access_formats String .htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson,.odvTxt
attribute NC_GLOBAL acquisition_description String Standard MOCNESS procedure. It was observed filtered volumes to be too high
(and speeds too high), so flowmeter was \"recalibrated\" using deployments and
files reanalyzed. It is likely that, since the flowmeter was too new, after
several recent deployments has finally \"broken-in\" and now goes faster. Flow
calibration was done by running the LVpki software for several profiles
looking at average CF values.

Refer to the cruise report for more information.\u00a0See also: the xmlcon and
hdr files under Supplemental Files.
attribute NC_GLOBAL awards_0_award_nid String 764113
attribute NC_GLOBAL awards_0_award_number String OCE-1829318
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1829318 (external link)
attribute NC_GLOBAL awards_0_funder_name String NSF Division of Ocean Sciences
attribute NC_GLOBAL awards_0_funding_acronym String NSF OCE
attribute NC_GLOBAL awards_0_funding_source_nid String 355
attribute NC_GLOBAL awards_0_program_manager String David L. Garrison
attribute NC_GLOBAL awards_0_program_manager_nid String 50534
attribute NC_GLOBAL awards_1_award_nid String 764119
attribute NC_GLOBAL awards_1_award_number String OCE-1829378
attribute NC_GLOBAL awards_1_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1829378 (external link)
attribute NC_GLOBAL awards_1_funder_name String NSF Division of Ocean Sciences
attribute NC_GLOBAL awards_1_funding_acronym String NSF OCE
attribute NC_GLOBAL awards_1_funding_source_nid String 355
attribute NC_GLOBAL awards_1_program_manager String David L. Garrison
attribute NC_GLOBAL awards_1_program_manager_nid String 50534
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String Continuous MOCNESS Data
from R/V Atlantic Explorer cruise AE1918
PI: Amy Maas (BIOS)
Co-PIs: Leocadio Blanco-Bercial (BIOS) & Ann Tarrant (WHOI)
Version date: 13-Nov-2019
attribute NC_GLOBAL Conventions String COARDS, CF-1.6, ACDD-1.3
attribute NC_GLOBAL creator_email String info at bco-dmo.org
attribute NC_GLOBAL creator_name String BCO-DMO
attribute NC_GLOBAL creator_type String institution
attribute NC_GLOBAL creator_url String https://www.bco-dmo.org/ (external link)
attribute NC_GLOBAL data_source String extract_data_as_tsv version 2.3 19 Dec 2019
attribute NC_GLOBAL date_created String 2019-11-13T19:54:44Z
attribute NC_GLOBAL date_modified String 2019-11-21T19:58:19Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.781545.1
attribute NC_GLOBAL Easternmost_Easting double -64.55002
attribute NC_GLOBAL geospatial_lat_max double 32.33606
attribute NC_GLOBAL geospatial_lat_min double 32.28936
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -64.55002
attribute NC_GLOBAL geospatial_lon_min double -64.55892
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL geospatial_vertical_max double 607.0
attribute NC_GLOBAL geospatial_vertical_min double 0.6
attribute NC_GLOBAL geospatial_vertical_positive String down
attribute NC_GLOBAL geospatial_vertical_units String m
attribute NC_GLOBAL infoUrl String https://www.bco-dmo.org/dataset/781545 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL instruments_0_acronym String MOC1
attribute NC_GLOBAL instruments_0_dataset_instrument_description String Seabird 9/11 unit attached to a 1 m MOCNESS, 150 micron mesh nets
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 781554
attribute NC_GLOBAL instruments_0_description String The Multiple Opening/Closing Net and Environmental Sensing System or MOCNESS is a family of net systems based on the Tucker Trawl principle. The MOCNESS-1 carries nine 1-m2 nets usually of 335 micrometer mesh and is intended for use with the macrozooplankton. All nets are black to reduce contrast with the background. A motor/toggle release assembly is mounted on the top portion of the frame and stainless steel cables with swaged fittings are used to attach the net bar to the toggle release. A stepping motor in a pressure compensated case filled with oil turns the escapement crankshaft of the toggle release which sequentially releases the nets to an open then closed position on command from the surface. -- from the MOCNESS Operations Manual (1999 + 2003).
attribute NC_GLOBAL instruments_0_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L22/current/NETT0097/ (external link)
attribute NC_GLOBAL instruments_0_instrument_name String MOCNESS1
attribute NC_GLOBAL instruments_0_instrument_nid String 437
attribute NC_GLOBAL instruments_0_supplied_name String MOCNESS
attribute NC_GLOBAL keywords String altimetry, angle, bco, bco-dmo, biological, chemical, cruise, ctddepth, data, dataset, date, date_start, dmo, erddap, flow, gpstime, hzvel, iso, laboratory, latitude, longitude, management, net, oceanography, office, preliminary, pres, pressure, sal, satellite, sigma, start, temperature, theta, time, time2, time_start, tow, vol, vtvel
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/781545/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/781545 (external link)
attribute NC_GLOBAL Northernmost_Northing double 32.33606
attribute NC_GLOBAL param_mapping String {'781545': {'lat': 'flag - latitude', 'ISO_DateTime_UTC_start': 'flag - time', 'CTDDEPTH': 'master - depth', 'lon': 'flag - longitude'}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/781545/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String Bermuda Institute of Ocean Sciences
attribute NC_GLOBAL people_0_affiliation_acronym String BIOS
attribute NC_GLOBAL people_0_person_name String Amy Maas
attribute NC_GLOBAL people_0_person_nid String 51589
attribute NC_GLOBAL people_0_role String Principal Investigator
attribute NC_GLOBAL people_0_role_type String originator
attribute NC_GLOBAL people_1_affiliation String Bermuda Institute of Ocean Sciences
attribute NC_GLOBAL people_1_affiliation_acronym String BIOS
attribute NC_GLOBAL people_1_person_name String Leocadio Blanco-Bercial
attribute NC_GLOBAL people_1_person_nid String 51108
attribute NC_GLOBAL people_1_role String Co-Principal Investigator
attribute NC_GLOBAL people_1_role_type String originator
attribute NC_GLOBAL people_2_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_2_affiliation_acronym String WHOI
attribute NC_GLOBAL people_2_person_name String Ann M. Tarrant
attribute NC_GLOBAL people_2_person_nid String 51430
attribute NC_GLOBAL people_2_role String Co-Principal Investigator
attribute NC_GLOBAL people_2_role_type String originator
attribute NC_GLOBAL people_3_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_3_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_3_person_name String Shannon Rauch
attribute NC_GLOBAL people_3_person_nid String 51498
attribute NC_GLOBAL people_3_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_3_role_type String related
attribute NC_GLOBAL project String Zooplankton Diel Rhythm
attribute NC_GLOBAL projects_0_acronym String Zooplankton Diel Rhythm
attribute NC_GLOBAL projects_0_description String NSF Award Abstract:
The daily vertical migration (DMV) of zooplankton and fish across hundreds of meters between shallow and deep waters is a predominant pattern in pelagic ecosystems. This migration has consequences for biogeochemical cycling as it moves a substantial portion of fixed carbon and nitrogen (an estimated 15 to 40 % of the total global organic export) from the surface directly to depth where it feeds the midwater food chain and sequesters nutrients away from atmospheric mixing. Estimates and predictions of these fluxes are, however, poorly understood at present. New observations have shown that one source of uncertainty is due to the assumption that metabolic rates and processes do not vary over the course of the day, except based on changes in temperature and oxygen availability. Rates are, however, also driven by differences in feeding, swimming behavior, and underlying circadian cycles. The objective of this project is to improve the ability of scientists to understand and predict zooplankton contributions to the movement of carbon and nitrogen in the ocean by detailing daily changes in physiological processes of these organisms. By producing a set of respiration and excretion measurements over a daily time series, paired with simultaneously collected gene and protein expression patterns for an abundant vertically migratory species, the investigators will provide unprecedented and predictive insight into how changes in the environment affect the contribution of zooplankton to biogeochemical fluxes. The sampling design of the project will advance discovery and understanding by providing hands-on training opportunities to at least two undergraduate researchers. The project will broaden dissemination of the research via development of an educational module, focusing on rhythms in the ocean. The module will initially be piloted with the Bermuda Institute of Ocean Sciences (BIOS) summer camp students and then disseminated through the BIOS Explorer program, the Teacher Resources Page on the BIOS website, and published in a peer-reviewed educational journal.
This project will characterize the metabolic consequences of daily physiological rhythms and DVM for a model zooplankton species, the abundant subtropical copepod Pleuromamma xiphias. Flux processes (oxygen consumption, carbon dioxide production, production of ammonium and fecal pellet production) will be interrogated using directed experiments testing the effects of temperature, feeding and circadian cycle. Circadian cycling will further be examined using transcriptomic and proteomic profiling. These experiments will be related to field samples taken at 6-h intervals over the course of the diel migration using an integrated suite of molecular and organismal metrics. Combined organismal, transcriptomic and proteomic profiles will provide an understanding of which metabolic pathways and associated flux products vary in relation to particular environmental variables (food, light cycle, temperature). Diel variation in metabolic rates will also be assessed across seasons and species using other important migratory groups (pteropod, euphausiid, and another copepod). The metabolic data will then be contextualized with abundance estimates from archived depth-stratified tows to allow scaling to community-level patterns and will be used to improve calculations of zooplankton contribution to particulate organic carbon, nitrogen and respiratory active flux. The results of this study will both improve our flux estimates and provide predictive insight into how various environmental variables influence the underlying physiological pathways generating carbon and nitrogen flux.
Cruise reports are available from the completed cruises:SD031019AE1910AE1918
attribute NC_GLOBAL projects_0_end_date String 2021-09
attribute NC_GLOBAL projects_0_geolocation String Bermuda
attribute NC_GLOBAL projects_0_name String Collaborative Research: Diel physiological rhythms in a tropical oceanic copepod
attribute NC_GLOBAL projects_0_project_nid String 764114
attribute NC_GLOBAL projects_0_start_date String 2018-10
attribute NC_GLOBAL publisher_name String Biological and Chemical Oceanographic Data Management Office (BCO-DMO)
attribute NC_GLOBAL publisher_type String institution
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL Southernmost_Northing double 32.28936
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL subsetVariables String tow,date_start,time_start,time,cruise
attribute NC_GLOBAL summary String AE1918 was a cruise of opportunity on which two oceanographic sampling activities were conducted: a CTD cast and a MOCNESS net tow. These are the continuous underway data from the MOCNESS tow.
attribute NC_GLOBAL time_coverage_end String 2019-07-25T14:52:18Z
attribute NC_GLOBAL time_coverage_start String 2019-07-25T14:52:18Z
attribute NC_GLOBAL title String Continuous MOCNESS data files from R/V Atlantic Explorer cruise AE1918 during July 2019
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL Westernmost_Easting double -64.55892
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable tow   String  
attribute tow bcodmo_name String tow
attribute tow description String Tow number (based on file name)
attribute tow long_name String Tow
attribute tow units String unitless
variable date_start   String  
attribute date_start bcodmo_name String date
attribute date_start description String Date UTC at start of tow (from file header); format: yyyy-mm-dd
attribute date_start long_name String Date Start
attribute date_start nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/ (external link)
attribute date_start time_precision String 1970-01-01
attribute date_start units String unitless
variable time_start   String  
attribute time_start bcodmo_name String time
attribute time_start description String Time UTC at start of tow (from file header); format: hh:mm:ss
attribute time_start long_name String Time Start
attribute time_start nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/AHMSAA01/ (external link)
attribute time_start units String unitless
variable time   double  
attribute time _CoordinateAxisType String Time
attribute time actual_range double 1.564066338E9, 1.564066338E9
attribute time axis String T
attribute time bcodmo_name String ISO_DateTime_UTC
attribute time description String Date and time (UTC) at start of tow formatted ISO8601 standard: yyyy-mm-ddTHH:MM:SS
attribute time ioos_category String Time
attribute time long_name String ISO Date Time UTC Start
attribute time nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/DTUT8601/ (external link)
attribute time source_name String ISO_DateTime_UTC_start
attribute time standard_name String time
attribute time time_origin String 01-JAN-1970 00:00:00
attribute time time_precision String 1970-01-01T00:00:00Z
attribute time units String seconds since 1970-01-01T00:00:00Z
variable cruise   String  
attribute cruise bcodmo_name String cruise_id
attribute cruise description String Cruise identifier
attribute cruise long_name String Cruise
attribute cruise units String unitless
variable time2   double  
attribute time2 _FillValue double NaN
attribute time2 actual_range double 206.598785, 206.691296
attribute time2 bcodmo_name String time
attribute time2 description String Decimal day of year
attribute time2 long_name String Time
attribute time2 nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/AHMSAA01/ (external link)
attribute time2 units String unitless
variable pres   float  
attribute pres _FillValue float NaN
attribute pres actual_range float 0.6, 612.1
attribute pres bcodmo_name String pressure
attribute pres description String Pressure
attribute pres long_name String Pressure
attribute pres nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/PRESPR01/ (external link)
attribute pres units String decibars (dbar)
variable temp   float  
attribute temp _FillValue float NaN
attribute temp actual_range float 15.396, 28.815
attribute temp bcodmo_name String temperature
attribute temp description String Temperature of the water
attribute temp long_name String Temperature
attribute temp nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/TEMPP901/ (external link)
attribute temp units String degrees Celsius
variable theta   float  
attribute theta _FillValue float NaN
attribute theta actual_range float 15.304, 28.822
attribute theta bcodmo_name String sigma_0
attribute theta description String Sigma-theta (density) of the water
attribute theta long_name String Theta
attribute theta nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/SIGTPR01/ (external link)
attribute theta units String kilograms per cubic meter (Kg m-3)
variable sal   float  
attribute sal _FillValue float NaN
attribute sal actual_range float 36.055, 37.464
attribute sal bcodmo_name String sal
attribute sal description String Salinity of the water
attribute sal long_name String Sal
attribute sal nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/PSALST01/ (external link)
attribute sal units String PSU
variable sigma   float  
attribute sigma _FillValue float NaN
attribute sigma actual_range float 23.399, 26.769
attribute sigma bcodmo_name String sigma_0
attribute sigma description String Sigma (density) of the water
attribute sigma long_name String Sigma
attribute sigma nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/SIGTPR01/ (external link)
attribute sigma units String kilograms per cubic meter (Kg m-3)
variable angle   float  
attribute angle _FillValue float NaN
attribute angle actual_range float 22.0, 95.4
attribute angle bcodmo_name String angle
attribute angle description String Angle of the net
attribute angle long_name String Angle
attribute angle units String degrees
variable flow   short  
attribute flow _FillValue short 32767
attribute flow actual_range short 0, 260
attribute flow bcodmo_name String flow
attribute flow description String Flow counts of the net
attribute flow long_name String Flow
attribute flow units String counts
variable hzvel   float  
attribute hzvel _FillValue float NaN
attribute hzvel actual_range float 0.0, 1.6
attribute hzvel bcodmo_name String hzvel
attribute hzvel description String Horizontal velocity
attribute hzvel long_name String Hzvel
attribute hzvel units String meters per second (m s-1)
variable vtvel   float  
attribute vtvel _FillValue float NaN
attribute vtvel actual_range float -37.83, 25.52
attribute vtvel bcodmo_name String vtvel
attribute vtvel description String Vertical velocity
attribute vtvel long_name String Vtvel
attribute vtvel units String meters per second (m s-1)
variable vol   float  
attribute vol _FillValue float NaN
attribute vol actual_range float 0.0, 869.0
attribute vol bcodmo_name String vol_filt
attribute vol description String Volume filtered in that net
attribute vol long_name String Vol
attribute vol units String cubmic meters (m3)
variable net   byte  
attribute net _FillValue byte 127
attribute net actual_range byte 0, 9
attribute net bcodmo_name String net
attribute net description String Net number
attribute net long_name String Net
attribute net units String unitless
variable latitude   double  
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue double NaN
attribute latitude actual_range double 32.28936, 32.33606
attribute latitude axis String Y
attribute latitude bcodmo_name String latitude
attribute latitude colorBarMaximum double 90.0
attribute latitude colorBarMinimum double -90.0
attribute latitude description String Latitude
attribute latitude ioos_category String Location
attribute latitude long_name String Latitude
attribute latitude nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LATX/ (external link)
attribute latitude standard_name String latitude
attribute latitude units String degrees_north
variable longitude   double  
attribute longitude _CoordinateAxisType String Lon
attribute longitude _FillValue double NaN
attribute longitude actual_range double -64.55892, -64.55002
attribute longitude axis String X
attribute longitude bcodmo_name String longitude
attribute longitude colorBarMaximum double 180.0
attribute longitude colorBarMinimum double -180.0
attribute longitude description String Longitude
attribute longitude ioos_category String Location
attribute longitude long_name String Longitude
attribute longitude nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LONX/ (external link)
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
variable GPSTIME   int  
attribute GPSTIME _FillValue int 2147483647
attribute GPSTIME actual_range int 51734, 59725
attribute GPSTIME bcodmo_name String time
attribute GPSTIME description String GPS time
attribute GPSTIME long_name String GPSTIME
attribute GPSTIME nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/AHMSAA01/ (external link)
attribute GPSTIME units String unitless
variable depth   double  
attribute depth _CoordinateAxisType String Height
attribute depth _CoordinateZisPositive String down
attribute depth _FillValue double NaN
attribute depth actual_range double 0.6, 607.0
attribute depth axis String Z
attribute depth bcodmo_name String depth
attribute depth description String Depth
attribute depth ioos_category String Location
attribute depth long_name String CTDDEPTH
attribute depth nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/DEPH/ (external link)
attribute depth positive String down
attribute depth standard_name String depth
attribute depth units String m

The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV1, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.

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