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     data   graph     files  public Chlorophyll data from McMurdo Sound, Antarctica from 2012 to 2015 (McMurdo Predator Prey
project)
   ?     I   M   background (external link) RSS BCO-DMO bcodmo_dataset_679685

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
attribute NC_GLOBAL acquisition_description String Small holes were drilled through the McMurdo Sound fast ice. A Niskin Bottle
was deployed below the fast ice and water was collected just below the ice-
water interface and at a pre-determined depth (Chlorophyll maximum) as
determined by a fluorescence sensor on a CTD. Water samples from the Niskin
bottles were collected in 4 L amber Nalgene bottles and then immediately
stored in a dark cooler. Gloves were worn for sample collection and bottles
and caps were rinsed three times before sample collection. The sample bottles
were immediately processed as soon as they returned from the field. The
collection bottle was gently swirled and 50 to 2000 mL were filtered under low
vacuum onto a 25 mm GF/F filter. Filters were immediately placed in 13 mm
borosilicate test tubes containing 7 mL 90% v/v HPLC grade acetone and
extracted in the dark for 24 h at -20 degrees C. After extraction,
fluorescence was measured with a Turner Designs 10 AU fluorometer before and
after acidification. The fluorometer was calibrated at McMurdo Station at the
beginning of the field season using Chlorophyll a standards from Sigma-Aldrich
and rechecked using a solid standard from Turner Designs several times during
the field season. Chlorophyll a was determined using the methods of Parsons et
al. (1984).

Reference:
Parsons, T.R., Maita, Y., Lalli, C.M., 1984. A Manual of Chemical and
Biological\u00a0Methods for Seawater Analysis. Pergamon Press, New York, pp.
107\u2013110.
attribute NC_GLOBAL awards_0_award_nid String 665135
attribute NC_GLOBAL awards_0_award_number String PLR-0944511
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=0944511 (external link)
attribute NC_GLOBAL awards_0_funder_name String NSF Division of Polar Programs
attribute NC_GLOBAL awards_0_funding_acronym String NSF PLR
attribute NC_GLOBAL awards_0_funding_source_nid String 490497
attribute NC_GLOBAL awards_0_program_manager String Dr Chris H. Fritsen
attribute NC_GLOBAL awards_0_program_manager_nid String 50502
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String Chlorophyll data for McMurdo Sound
PIs: Kendra Daly and Stacy Kim
data version 08 Feb 2017
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 2.2d 13 Jun 2019
attribute NC_GLOBAL date_created String 2017-01-31T19:28:40Z
attribute NC_GLOBAL date_modified String 2017-05-11T17:34:13Z
attribute NC_GLOBAL defaultDataQuery String &time
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.699891
attribute NC_GLOBAL Easternmost_Easting double 166.3047
attribute NC_GLOBAL geospatial_lat_max double -77.5508
attribute NC_GLOBAL geospatial_lat_min double -77.7034
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double 166.3047
attribute NC_GLOBAL geospatial_lon_min double 165.0612
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL geospatial_vertical_max double 150.0
attribute NC_GLOBAL geospatial_vertical_min double 0.0
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/679685 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL instruments_0_acronym String Niskin bottle
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 679690
attribute NC_GLOBAL instruments_0_description String A Niskin bottle (a next generation water sampler based on the Nansen bottle) is a cylindrical, non-metallic water collection device with stoppers at both ends. The bottles can be attached individually on a hydrowire or deployed in 12, 24 or 36 bottle Rosette systems mounted on a frame and combined with a CTD. Niskin bottles are used to collect discrete water samples for a range of measurements including pigments, nutrients, plankton, etc.
attribute NC_GLOBAL instruments_0_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L22/current/TOOL0412/ (external link)
attribute NC_GLOBAL instruments_0_instrument_name String Niskin bottle
attribute NC_GLOBAL instruments_0_instrument_nid String 413
attribute NC_GLOBAL instruments_1_acronym String ECO AFL/FL
attribute NC_GLOBAL instruments_1_dataset_instrument_nid String 681352
attribute NC_GLOBAL instruments_1_description String The Environmental Characterization Optics (ECO) series of single channel fluorometers delivers both high resolution and wide ranges across the entire line of parameters using 14 bit digital processing. The ECO series excels in biological monitoring and dye trace studies. The potted optics block results in long term stability of the instrument and the optional anti-biofouling technology delivers truly long term field measurements.
more information from Wet Labs
attribute NC_GLOBAL instruments_1_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L22/current/TOOL0172/ (external link)
attribute NC_GLOBAL instruments_1_instrument_name String Wet Labs ECO-AFL/FL Fluorometer
attribute NC_GLOBAL instruments_1_instrument_nid String 592
attribute NC_GLOBAL instruments_1_supplied_name String WET Labs ECO-AFL/FL
attribute NC_GLOBAL instruments_2_acronym String Sea-Bird SEACAT 19 Plus
attribute NC_GLOBAL instruments_2_dataset_instrument_nid String 681351
attribute NC_GLOBAL instruments_2_description String Self contained self powered CTD profiler. Measures conductivity, temperature and pressure in both profiling (samples at 4 scans/sec) and moored (sample rates of once every 5 seconds to once every 9 hours) mode. Available in plastic or titanium housing with depth ranges of 600m and 7000m respectively. Minature submersible pump provides water to conductivity cell.
attribute NC_GLOBAL instruments_2_instrument_name String CTD Sea-Bird SBE SEACAT 19plus
attribute NC_GLOBAL instruments_2_instrument_nid String 616065
attribute NC_GLOBAL keywords String bco, bco-dmo, biological, chemical, chl, chlorophyll, data, dataset, date, depth, dmo, erddap, identifier, latitude, longitude, management, oceanography, office, phaeo, preliminary, station, time
attribute NC_GLOBAL license String The data may be used and redistributed for free but is not intended
for legal use, since it may contain inaccuracies. Neither the data
Contributor, ERD, NOAA, nor the United States Government, nor any
of their employees or contractors, makes any warranty, express or
implied, including warranties of merchantability and fitness for a
particular purpose, or assumes any legal liability for the accuracy,
completeness, or usefulness, of this information.
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/679685 (external link)
attribute NC_GLOBAL Northernmost_Northing double -77.5508
attribute NC_GLOBAL param_mapping String {'679685': {'lat': 'master - latitude', 'depth': 'flag - depth', 'lon': 'master - longitude'}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/679685/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String University of South Florida
attribute NC_GLOBAL people_0_affiliation_acronym String USF
attribute NC_GLOBAL people_0_person_name String Dr Kendra L. Daly
attribute NC_GLOBAL people_0_person_nid String 50505
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 H.T. Harvey & Associates
attribute NC_GLOBAL people_1_person_name String Dr David G. Ainley
attribute NC_GLOBAL people_1_person_nid String 50491
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 Point Blue Conservation Science
attribute NC_GLOBAL people_2_person_name String Dr Grant Ballard
attribute NC_GLOBAL people_2_person_nid String 566872
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 Moss Landing Marine Laboratories
attribute NC_GLOBAL people_3_affiliation_acronym String MLML
attribute NC_GLOBAL people_3_person_name String Dr Stacy Kim
attribute NC_GLOBAL people_3_person_nid String 51714
attribute NC_GLOBAL people_3_role String Co-Principal Investigator
attribute NC_GLOBAL people_3_role_type String originator
attribute NC_GLOBAL people_4_affiliation String University of South Florida
attribute NC_GLOBAL people_4_affiliation_acronym String USF
attribute NC_GLOBAL people_4_person_name String Dr Kendra L. Daly
attribute NC_GLOBAL people_4_person_nid String 50505
attribute NC_GLOBAL people_4_role String Contact
attribute NC_GLOBAL people_4_role_type String related
attribute NC_GLOBAL people_5_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_5_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_5_person_name String Amber York
attribute NC_GLOBAL people_5_person_nid String 643627
attribute NC_GLOBAL people_5_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_5_role_type String related
attribute NC_GLOBAL project String Food web dynamics in an intact ecosystem: the role of top predators in McMurdo Sound
attribute NC_GLOBAL projects_0_acronym String McMurdo Predator Prey
attribute NC_GLOBAL projects_0_description String Extracted from the NSF award abstract:
The research project investigates the importance of top down forcing on pelagic food webs. The relatively pristine Ross Sea includes large populations of upper-level predators such as minke and killer whales, Ad�lie and Emperor penguins, and Antarctic toothfish. This project focuses on food web interactions of Ad�lie penguins, minke whales, and the fish-eating Ross Sea killer whales, all of which exert foraging pressure on their main prey, crystal krill (Euphausia cyrstallorophias) and silver fish (Pleuragramma antarcticum) in McMurdo Sound.
The investigators used a video- and acoustic-capable ROV, and standard biological and environmental sensors to quantify the abundance and distribution of phytoplankton, sea ice biota, prey, and relevant habitat data.� The sampling area included 37 stations across an 30 x 15 km section of McMurdo Sound, stratified by distance from the ice edge as a proxy for air-breathing predator access. This study will be among the first to assess top-down forcing in the Ross Sea ecosystem and will form the basis for�multidisciplinary studies in the future.
Map sampling stations
attribute NC_GLOBAL projects_0_end_date String 2016-11
attribute NC_GLOBAL projects_0_geolocation String McMurdo Sound, Antarctica
attribute NC_GLOBAL projects_0_name String Food web dynamics in an intact ecosystem: the role of top predators in McMurdo Sound
attribute NC_GLOBAL projects_0_project_nid String 665131
attribute NC_GLOBAL projects_0_project_website String https://scini-penguin.mlml.calstate.edu/pauls-wordpress-test-site/ (external link)
attribute NC_GLOBAL projects_0_start_date String 2011-06
attribute NC_GLOBAL publisher_name String Amber York
attribute NC_GLOBAL publisher_role String BCO-DMO Data Manager(s)
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL Southernmost_Northing double -77.7034
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v29
attribute NC_GLOBAL summary String This dataset includes chlorophyll, phaeopigments, depth, lat, lon, and station
from McMurdo Sound, Antarctica collected between the austral years 2012/2013
and 2014/2015.
attribute NC_GLOBAL title String Chlorophyll data from McMurdo Sound, Antarctica from 2012 to 2015 (McMurdo Predator Prey project)
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL Westernmost_Easting double 165.0612
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.5-beta
variable station   String  
attribute station description String CTD station name where niskin bottle sample acquired
attribute station ioos_category String Identifier
attribute station long_name String Station
attribute station units String unitless
variable date   String  
attribute date description String Date in format yyyy-mm-dd in local time (UTC+12)
attribute date ioos_category String Time
attribute date long_name String Date
attribute date source_name String date
attribute date units String unitless
variable latitude   double  
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue double NaN
attribute latitude actual_range double -77.7034, -77.5508
attribute latitude axis String Y
attribute latitude colorBarMaximum double 90.0
attribute latitude colorBarMinimum double -90.0
attribute latitude description String Latitude of CTD cast; north is positive
attribute latitude ioos_category String Location
attribute latitude long_name String Latitude
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 165.0612, 166.3047
attribute longitude axis String X
attribute longitude colorBarMaximum double 180.0
attribute longitude colorBarMinimum double -180.0
attribute longitude description String Longitude of CTD cast; west is negative
attribute longitude ioos_category String Location
attribute longitude long_name String Longitude
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
variable depth   double  
attribute depth _CoordinateAxisType String Height
attribute depth _CoordinateZisPositive String down
attribute depth _FillValue double NaN
attribute depth actual_range double 0.0, 150.0
attribute depth axis String Z
attribute depth colorBarMaximum double 8000.0
attribute depth colorBarMinimum double -8000.0
attribute depth colorBarPalette String TopographyDepth
attribute depth description String Depth of sample
attribute depth ioos_category String Location
attribute depth long_name String Depth
attribute depth positive String down
attribute depth standard_name String depth
attribute depth units String m
variable chl   float  
attribute chl _FillValue float NaN
attribute chl actual_range float 0.212, 121.113
attribute chl description String Chlorophyll a
attribute chl ioos_category String Unknown
attribute chl long_name String CHL
attribute chl units String micrograms per liter (ug/L)
variable phaeo   float  
attribute phaeo _FillValue float NaN
attribute phaeo actual_range float -6.942, 3.897
attribute phaeo description String Phaeopigments
attribute phaeo ioos_category String Unknown
attribute phaeo long_name String Phaeo
attribute phaeo units String micrograms per liter (ug/L)

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


 
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