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Title Sum-
Institution Dataset ID
   set  data   graph     files  public CTD summary data from phytoplankton monitoring sites in Juneau, AK sampled from 2015-
2016 (SEAK-AHAB project)
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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 Dock-based CTD casts were completed at approximately weekly intervals at two
phytoplankton sampling stations, Auke Bay and Amalga Harbor, in Juneau, AK
using a SBE-25 Sealogger CTD equipped with a SBE-3 temperature sensor, SBE-4C
conductivity sensor, SBE-29 external pressure sensor, and a WETLabs
Fluorometer. The CTD was deployed down to ~1 meter above the seafloor. Local
date and time were recorded at the start of each sampling event.\u00a0

The CTD instrument package was last serviced and calibrated by Sea-Bird
Electronics, Inc. in June 2015.
attribute NC_GLOBAL awards_0_award_nid String 565808
attribute NC_GLOBAL awards_0_award_number String ICER-1415195
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward?AWD_ID=1415195 (external link)
attribute NC_GLOBAL awards_0_funder_name String NSF Divsion of Integrative and Collaborative Education and Research
attribute NC_GLOBAL awards_0_funding_acronym String NSF ICER
attribute NC_GLOBAL awards_0_funding_source_nid String 565809
attribute NC_GLOBAL awards_0_program_manager String Michael E. Sieracki
attribute NC_GLOBAL awards_0_program_manager_nid String 50446
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String CTD summary data
E. Tobin, PI
Version History:
25 July 2017 - Update data for 2016
30 September 2016 - Data for 2015
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 2016-09-30T18:31:41Z
attribute NC_GLOBAL date_modified String 2019-06-11T16:31:39Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.660308.1
attribute NC_GLOBAL Easternmost_Easting double -134.6499
attribute NC_GLOBAL geospatial_lat_max double 58.4916
attribute NC_GLOBAL geospatial_lat_min double 58.3819
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -134.6499
attribute NC_GLOBAL geospatial_lon_min double -134.7903
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL geospatial_vertical_max double 38.93
attribute NC_GLOBAL geospatial_vertical_min double 1.1
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/660308 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL instruments_0_acronym String CTD
attribute NC_GLOBAL instruments_0_dataset_instrument_description String Dock based CTD casts were used in this survey
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 660325
attribute NC_GLOBAL instruments_0_description String The Conductivity, Temperature, Depth (CTD) unit is an integrated instrument package designed to measure the conductivity, temperature, and pressure (depth) of the water column. The instrument is lowered via cable through the water column and permits scientists observe the physical properties in real time via a conducting cable connecting the CTD to a deck unit and computer on the ship. The CTD is often configured with additional optional sensors including fluorometers, transmissometers and/or radiometers. It is often combined with a Rosette of water sampling bottles (e.g. Niskin, GO-FLO) for collecting discrete water samples during the cast. This instrument designation is used when specific make and model are not known.
attribute NC_GLOBAL instruments_0_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/130/ (external link)
attribute NC_GLOBAL instruments_0_instrument_name String CTD profiler
attribute NC_GLOBAL instruments_0_instrument_nid String 417
attribute NC_GLOBAL instruments_0_supplied_name String SBE-25 Sealogger CTD
attribute NC_GLOBAL instruments_1_acronym String SBE-4 Conductivity
attribute NC_GLOBAL instruments_1_dataset_instrument_description String Equipped on CTD
attribute NC_GLOBAL instruments_1_dataset_instrument_nid String 660338
attribute NC_GLOBAL instruments_1_description String The Sea-Bird SBE-4 conductivity sensor is a modular, self-contained instrument that measures conductivity from 0 to 7 Siemens/meter. The sensors (Version 2; S/N 2000 and higher) have electrically isolated power circuits and optically coupled outputs to eliminate any possibility of noise and corrosion caused by ground loops. The sensing element is a cylindrical, flow-through, borosilicate glass cell with three internal platinum electrodes. Because the outer electrodes are connected together, electric fields are confined inside the cell, making the measured resistance (and instrument calibration) independent of calibration bath size or proximity to protective cages or other objects.
attribute NC_GLOBAL instruments_1_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L22/current/TOOL0417/ (external link)
attribute NC_GLOBAL instruments_1_instrument_name String Sea-Bird SBE-4 Conductivity Sensor
attribute NC_GLOBAL instruments_1_instrument_nid String 474
attribute NC_GLOBAL instruments_1_supplied_name String SBE-4C conductivity sensor
attribute NC_GLOBAL instruments_2_acronym String Pressure Sensor
attribute NC_GLOBAL instruments_2_dataset_instrument_description String Equipped on CTD
attribute NC_GLOBAL instruments_2_dataset_instrument_nid String 660339
attribute NC_GLOBAL instruments_2_description String A pressure sensor is a device used to measure absolute, differential, or gauge pressures. It is used only when detailed instrument documentation is not available.
attribute NC_GLOBAL instruments_2_instrument_name String Pressure Sensor
attribute NC_GLOBAL instruments_2_instrument_nid String 567
attribute NC_GLOBAL instruments_2_supplied_name String SBE-29 external pressure sensor
attribute NC_GLOBAL instruments_3_acronym String CTD-fluorometer
attribute NC_GLOBAL instruments_3_dataset_instrument_description String Equipped on CTD
attribute NC_GLOBAL instruments_3_dataset_instrument_nid String 660340
attribute NC_GLOBAL instruments_3_description String A CTD-fluorometer is an instrument package designed to measure hydrographic information (pressure, temperature and conductivity) and chlorophyll fluorescence.
attribute NC_GLOBAL instruments_3_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/113/ (external link)
attribute NC_GLOBAL instruments_3_instrument_name String CTD-fluorometer
attribute NC_GLOBAL instruments_3_instrument_nid String 580
attribute NC_GLOBAL instruments_3_supplied_name String WETLabs fluorometer
attribute NC_GLOBAL instruments_4_acronym String Water Temp Sensor
attribute NC_GLOBAL instruments_4_dataset_instrument_description String Equipped on CTD
attribute NC_GLOBAL instruments_4_dataset_instrument_nid String 660337
attribute NC_GLOBAL instruments_4_description String General term for an instrument that measures the temperature of the water with which it is in contact (thermometer).
attribute NC_GLOBAL instruments_4_instrument_external_identifier String https://vocab.nerc.ac.uk/collection/L05/current/134/ (external link)
attribute NC_GLOBAL instruments_4_instrument_name String Water Temperature Sensor
attribute NC_GLOBAL instruments_4_instrument_nid String 647
attribute NC_GLOBAL instruments_4_supplied_name String SBE-3 temperature sensor
attribute NC_GLOBAL keywords String b_density, b_salinity, bco, bco-dmo, biological, cast, cast_depth, chemical, data, data_quality, dataset, date, density, depth, dmo, earth, Earth Science > Oceans > Salinity/Density > Salinity, erddap, event, fluor, instrument, investigator, iso, latitude, local, longitude, management, max, max_fluor, ocean, oceanography, oceans, office, practical, preliminary, quality, s_density, s_salinity, salinity, sampling, sampling_event, science, sea, sea_water_practical_salinity, seawater, station, surface, surface_temp, temperature, time, time_local, time_zone, water, year, zone
attribute NC_GLOBAL keywords_vocabulary String GCMD Science Keywords
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/660308/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/660308 (external link)
attribute NC_GLOBAL Northernmost_Northing double 58.4916
attribute NC_GLOBAL param_mapping String {'660308': {'lat': 'flag - latitude', 'lon': 'flag - longitude', 'cast_depth': 'flag - depth', 'ISO_DateTime_Local': 'flag - time'}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/660308/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String University of Alaska Fairbanks
attribute NC_GLOBAL people_0_affiliation_acronym String UAF-Juneau
attribute NC_GLOBAL people_0_person_name String Dr Elizabeth D. Tobin
attribute NC_GLOBAL people_0_person_nid String 565811
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 Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_1_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_1_person_name String Hannah Ake
attribute NC_GLOBAL people_1_person_nid String 650173
attribute NC_GLOBAL people_1_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_1_role_type String related
attribute NC_GLOBAL people_2_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_2_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_2_person_name String Mathew Biddle
attribute NC_GLOBAL people_2_person_nid String 708682
attribute NC_GLOBAL people_2_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_2_role_type String related
attribute NC_GLOBAL project String SEAK-AHAB
attribute NC_GLOBAL projects_0_acronym String SEAK-AHAB
attribute NC_GLOBAL projects_0_description String Description from NSF award abstract:
The project is supported under the NSF Science, Engineering and Education for Sustainability Fellows (SEES Fellows) program, with the goal of helping to enable discoveries needed to inform actions that lead to environmental, energy and societal sustainability while creating the necessary workforce to address these challenges.
This project focuses on the sustainability of shelfish harvesting in Alaska. In Alaska, paralytic shellfish poisoning caused by the marine alga Alexandrium is a severe and persistent problem that significantly impacts human health and the availability of shellfish resources. This project aims to enhance sustainability of commercial, recreational and subsistence shellfish harvest in Southeast Alaska by addressing the ecology of Alexandrium harmful algal blooms and their sociocultural impacts. Despite the recognized impacts of paralytic shellfish poisoning, little research has been done on the causative organism, Alexandrium, and the sociocultural impacts of toxic Alexandrium blooms in the Southeast Alaska region. This study is a three-pronged effort. First, the project bolsters understanding of the ecological mechanisms that promote Alexandrium blooms by mapping cyst seedbeds (i.e., bloom initiation sites), monitoring cyst emergence, and identifying environmental conditions under which blooms form. This information adds to the body of scientific knowledge about Alexandrium bloom dynamics in coastal, fjord systems, provide early-warning information about toxic bloom development and help focus future paralytic shellfish poisoning testing and harmful algal bloom monitoring efforts in Southeast Alaska. Second, the application of novel in situ sensors will overcome previous benthic emergence monitoring challenges and has the potential to improve harmful algal bloom forecasting capabilities. Third, human dimensions research will generate critical information about how social systems can reduce vulnerability to harmful algal blooms and how local/traditional knowledge can support scientific efforts by establishing strong community partnerships.
The SEES Fellow, Dr. Elizabeth Tobin, works with host mentor Dr. Ginny Eckert at the University of Alaska Fairbanks, and with partner mentor Dr. Thomas Leschine at the University of Washington.
attribute NC_GLOBAL projects_0_end_date String 2017-08
attribute NC_GLOBAL projects_0_geolocation String Southeast Alaska; 58 N, 134 W
attribute NC_GLOBAL projects_0_name String Enhancing Sustainability of Shellfish Harvest in Alaska: Addressing the Ecology of Alexandrium Blooms and their Sociocultural Impacts
attribute NC_GLOBAL projects_0_project_nid String 565810
attribute NC_GLOBAL projects_0_start_date String 2014-09
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 58.3819
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL subsetVariables String investigator,instrument,time_zone
attribute NC_GLOBAL summary String CTD summary data from phytoplankton monitoring sites in Juneau, AK sampled from 2015-2016 (SEAK-AHAB project)
attribute NC_GLOBAL time_coverage_end String 2016-12-15T12:00:00Z
attribute NC_GLOBAL time_coverage_start String 2015-03-10T12:45:00Z
attribute NC_GLOBAL title String CTD summary data from phytoplankton monitoring sites in Juneau, AK sampled from 2015-2016 (SEAK-AHAB project)
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL Westernmost_Easting double -134.7903
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable year   short  
attribute year _FillValue short 32767
attribute year actual_range short 2015, 2016
attribute year bcodmo_name String year
attribute year description String Four digit year sample was taken; YYYY
attribute year long_name String Year
attribute year nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/YEARXXXX/ (external link)
attribute year units String unitless
variable investigator   String  
attribute investigator bcodmo_name String investigator
attribute investigator description String Investigator responsible for collecting sample
attribute investigator long_name String Investigator
attribute investigator units String unitless
variable instrument   String  
attribute instrument bcodmo_name String instrument
attribute instrument description String Instrument used to collect sample
attribute instrument long_name String Instrument
attribute instrument units String unitless
variable station   String  
attribute station bcodmo_name String station
attribute station description String Station where sample was taken
attribute station long_name String Station
attribute station units String unitless
variable latitude   double  
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue double NaN
attribute latitude actual_range double 58.3819, 58.4916
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 -134.7903, -134.6499
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 sampling_event   String  
attribute sampling_event bcodmo_name String event
attribute sampling_event description String Sampling event ID
attribute sampling_event long_name String Sampling Event
attribute sampling_event nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/EVTAGFL/ (external link)
attribute sampling_event units String unitless
variable date   int  
attribute date _FillValue int 2147483647
attribute date actual_range int 20150310, 20161215
attribute date bcodmo_name String date
attribute date description String Date sample was taken; YYYYmmdd
attribute date long_name String Date
attribute date nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/ (external link)
attribute date units String unitless
variable time_zone   String  
attribute time_zone bcodmo_name String timezone
attribute time_zone description String Time zone where sample was taken
attribute time_zone long_name String Time Zone
attribute time_zone units String unitless
variable time_local   String  
attribute time_local bcodmo_name String time_local
attribute time_local description String Local time when sampling occurred; HH:MM
attribute time_local long_name String Time Local
attribute time_local 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 1.1, 38.93
attribute depth axis String Z
attribute depth bcodmo_name String depth_cast
attribute depth description String Bottom depth of cast
attribute depth ioos_category String Location
attribute depth long_name String Cast Depth
attribute depth positive String down
attribute depth standard_name String depth
attribute depth units String m
variable surface_temp   float  
attribute surface_temp _FillValue float NaN
attribute surface_temp actual_range float -2.21, 16.1
attribute surface_temp bcodmo_name String temp_ss
attribute surface_temp description String Sea surface temperature
attribute surface_temp long_name String Surface Temp
attribute surface_temp units String celsius
variable s_salinity   float  
attribute s_salinity _FillValue float NaN
attribute s_salinity actual_range float 13.11, 31.13
attribute s_salinity bcodmo_name String sal_ss
attribute s_salinity colorBarMaximum double 37.0
attribute s_salinity colorBarMinimum double 32.0
attribute s_salinity description String Surface salinity
attribute s_salinity long_name String Sea Water Practical Salinity
attribute s_salinity units String practical salinity units (PSU)
variable b_salinity   float  
attribute b_salinity _FillValue float NaN
attribute b_salinity actual_range float 16.0, 31.53
attribute b_salinity bcodmo_name String sal
attribute b_salinity colorBarMaximum double 37.0
attribute b_salinity colorBarMinimum double 32.0
attribute b_salinity description String Bottom salinity
attribute b_salinity long_name String Sea Water Practical Salinity
attribute b_salinity nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/PSALST01/ (external link)
attribute b_salinity units String practical salinity units (PSU)
variable s_density   float  
attribute s_density _FillValue float NaN
attribute s_density actual_range float 1009.56, 1024.44
attribute s_density bcodmo_name String density
attribute s_density description String Surface density
attribute s_density long_name String s density
attribute s_density units String kilogram per meter cubed (kg/m3)
variable b_density   float  
attribute b_density _FillValue float NaN
attribute b_density actual_range float 1011.65, 1024.9
attribute b_density bcodmo_name String density
attribute b_density description String Botton density
attribute b_density long_name String B Density
attribute b_density units String kilogram per meter cubed (kg/m3)
variable max_fluor   float  
attribute max_fluor _FillValue float NaN
attribute max_fluor actual_range float 0.2, 28.04
attribute max_fluor bcodmo_name String fluorescence
attribute max_fluor description String Maximum fluorescence
attribute max_fluor long_name String Max Fluor
attribute max_fluor nerc_identifier String https://vocab.nerc.ac.uk/collection/P01/current/CPHLPM01/ (external link)
attribute max_fluor units String milligram per meter cubed (mg/m3)
variable data_quality   String  
attribute data_quality bcodmo_name String comment
attribute data_quality description String Codes providing information about missing or flagged data
attribute data_quality long_name String Data Quality
attribute data_quality units String unitless
variable time   double  
attribute time _CoordinateAxisType String Time
attribute time actual_range double 1.4259915E9, 1.4818032E9
attribute time axis String T
attribute time bcodmo_name String ISO_DateTime_Local
attribute time description String DateTime local; YYYY-mm-dd HH:MM
attribute time ioos_category String Time
attribute time long_name String ISO Date Time Local
attribute time source_name String ISO_DateTime_Local
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

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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