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Dataset Title:  Brine samples from both sea ice and cryopeg near Utqia\u0121vik, Alaska, USA
from 2017-05-08 to 2018-05-10
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Institution:  BCO-DMO   (Dataset ID: bcodmo_dataset_817221)
Information:  Summary ? | License ? | ISO 19115 | Metadata | Background (external link) | Files | Make a graph
 
Variable ?   Optional
Constraint #1 ?
Optional
Constraint #2 ?
   Minimum ?
 
   Maximum ?
 
 sheet_name (unitless) ?          "2017_sample_data"    "2018_sample_data"
 Station (unitless) ?          "CRREL Ice Mine*"    "NaN"
 latitude (degrees_north) ?          71.2944    71.473
  < slider >
 longitude (degrees_east) ?          -156.7294    -156.5049
  < slider >
 Date (unitless) ?          "2017-05-06"    "NaN"
 Sample_type (unitless) ?          "0-m seawater_A"    "upper sea ice_A"
 Snow_thickness (centimeters (cm)) ?          8    18
 Ice_thickness (centimeters (cm)) ?          110    128
 Sackhole_Ice_Borehole_depth (centimeters (cm)) ?          "0-25"    "n/a"
 Temperature (degrees Celsius (C)) ?          -6    -3
 pH (unitless) ?          "6.6"    "NaN"
 Salinity (parts per thousand (ppt)) ?          "0"    "NaN"
 Bacterial_abundance (cells per milliliter (cells/mL)) ?          64000    276000000
 VLP_abundance (virus like particle per milliliter (VPL/mL)) ?          68400    528000000
 PON_ug_N_mL (micrograms of Nitrogen per milliliter (µg N/mL)) ?          0.0014    3.9226
 POC_ug_C_mL (micrograms of Carbon per milliliter (µg C/mL)) ?          0.01553    23.7821
 dEPS (g glu-eq/mL) ?          "256.368"    "lost"
 pEPS (g glu-eq/mL) ?          "0.011"    "lost"
 Chl_a (milligrams per meter cubed (mg/m3)) ?          0.091    369.235
 Chl_a_Phaeo_ratio (unitless) ?          0.114    7.182
 DOC_uM_C (micromole Carbon (µM C)) ?          118.1    107136.3
 PO4 (micromole (µM)) ?          0.1    1.94
 SiO4 (micromole (µM)) ?          0.26    67.85
 NO3 (micromole (µM)) ?          0.0    13.56
 NO2 (micromole (µM)) ?          0.0    16.24
 NH4 (micromole (µM)) ?          0.0    4522.96
 d2H (parts per thousand (o/oo)) ?          -190.53    -17.77
 d18O (parts per thousand (o/oo)) ?          -24.82    -1.41
 pcnt_dividing_cells (unitless) ?          0.0    30.0
 PON_mg_N_mL (milligrams Nitrogen per milliliter (mg N/mL)) ?          0.035    26.914
 POC_mg_C_mL (milligrams Carbon per milliliter (mgCN/mL)) ?          0.211    166.463
 
Server-side Functions ?
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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  sheet_name {
    String bcodmo_name "unknown";
    String description "name of the sheet in the source file";
    String long_name "Sheet Name";
    String units "unitless";
  }
  Station {
    String bcodmo_name "station";
    String description "Station identifier";
    String long_name "Station";
    String units "unitless";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 _FillValue NaN;
    Float64 actual_range 71.2944, 71.473;
    String axis "Y";
    String bcodmo_name "latitude";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String description "latitude with positive values indicating North";
    String ioos_category "Location";
    String long_name "Latitude";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/LATX/";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 _FillValue NaN;
    Float64 actual_range -156.7294, -156.5049;
    String axis "X";
    String bcodmo_name "longitude";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String description "longitude with negative values indicating West";
    String ioos_category "Location";
    String long_name "Longitude";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P09/current/LONX/";
    String standard_name "longitude";
    String units "degrees_east";
  }
  Date {
    String bcodmo_name "date";
    String description "date of sampling following ISO-8601 format";
    String long_name "Date";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/";
    String units "unitless";
  }
  Sample_type {
    String bcodmo_name "sample_descrip";
    String description "type of sample collected";
    String long_name "Sample Type";
    String units "unitless";
  }
  Snow_thickness {
    Byte _FillValue 127;
    Byte actual_range 8, 18;
    String bcodmo_name "unknown";
    String description "Thickness of the snow";
    String long_name "Snow Thickness";
    String units "centimeters (cm)";
  }
  Ice_thickness {
    Int16 _FillValue 32767;
    Int16 actual_range 110, 128;
    String bcodmo_name "unknown";
    String description "Thickness of the ice";
    String long_name "Ice Thickness";
    String units "centimeters (cm)";
  }
  Sackhole_Ice_Borehole_depth {
    String bcodmo_name "unknown";
    String description "Sackhole/Ice/Borehole depth";
    String long_name "Sackhole Ice Borehole Depth";
    String units "centimeters (cm)";
  }
  Temperature {
    Byte _FillValue 127;
    Byte actual_range -6, -3;
    String bcodmo_name "unknown";
    String description "UNKNOWN";
    String long_name "Temperature";
    String units "degrees Celsius (C)";
  }
  pH {
    String bcodmo_name "pH";
    String description "pH observed by paper indicator strips";
    String long_name "pH";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/PHXXZZXX/";
    String units "unitless";
  }
  Salinity {
    String bcodmo_name "sal";
    String description "Salinity observed by refractometer for brines or by conductivity for bulk (direct-melted) sea ice";
    String long_name "Salinity";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/PSALST01/";
    String units "parts per thousand (ppt)";
  }
  Bacterial_abundance {
    Int32 _FillValue 2147483647;
    Int32 actual_range 64000, 276000000;
    String bcodmo_name "bact_abundance";
    String description "Bacterial abundance";
    String long_name "Bacterial Abundance";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P02/current/BNTX";
    String units "cells per milliliter (cells/mL)";
  }
  VLP_abundance {
    Int32 _FillValue 2147483647;
    Int32 actual_range 68400, 528000000;
    String bcodmo_name "unknown";
    String description "Virus like particle abundance";
    String long_name "VLP Abundance";
    String units "virus like particle per milliliter (VPL/mL)";
  }
  PON_ug_N_mL {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0014, 3.9226;
    String bcodmo_name "PON";
    String description "Particulate organic nitrogen";
    String long_name "PON Ug N M L";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/MDMAP013/";
    String units "micrograms of Nitrogen per milliliter (µg N/mL)";
  }
  POC_ug_C_mL {
    Float32 _FillValue NaN;
    Float32 actual_range 0.01553, 23.7821;
    String bcodmo_name "POC";
    String description "Particulate organic Carbon";
    String long_name "POC Ug C M L";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/CORGCAP1/";
    String units "micrograms of Carbon per milliliter (µg C/mL)";
  }
  dEPS {
    String bcodmo_name "unknown";
    String description "dissolved extracellular polyssacharide substances (through a 0.4 micron filter)";
    String long_name "D EPS";
    String units "g glu-eq/mL";
  }
  pEPS {
    String bcodmo_name "unknown";
    String description "particulate extracellular polyssacharide substances (over a 0.4 micron filter)";
    String long_name "P EPS";
    String units "g glu-eq/mL";
  }
  Chl_a {
    Float32 _FillValue NaN;
    Float32 actual_range 0.091, 369.235;
    String bcodmo_name "chlorophyll a";
    Float64 colorBarMaximum 30.0;
    Float64 colorBarMinimum 0.03;
    String colorBarScale "Log";
    String description "Chlorophyll A";
    String long_name "Concentration Of Chlorophyll In Sea Water";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/CPHLHPP1/";
    String units "milligrams per meter cubed (mg/m3)";
  }
  Chl_a_Phaeo_ratio {
    Float32 _FillValue NaN;
    Float32 actual_range 0.114, 7.182;
    String bcodmo_name "Fo_to_Fa";
    Float64 colorBarMaximum 30.0;
    Float64 colorBarMinimum 0.03;
    String colorBarScale "Log";
    String description "ratio of chlorophyll a to phaeopigment";
    String long_name "Concentration Of Chlorophyll In Sea Water";
    String units "unitless";
  }
  DOC_uM_C {
    Float32 _FillValue NaN;
    Float32 actual_range 118.1, 107136.3;
    String bcodmo_name "DOC";
    String description "Dissolved organic carbon";
    String long_name "DOC U M C";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/CORGZZZX/";
    String units "micromole Carbon (µM C)";
  }
  PO4 {
    Float32 _FillValue NaN;
    Float32 actual_range 0.1, 1.94;
    String bcodmo_name "PO4";
    String description "PO4";
    String long_name "Mass Concentration Of Phosphate In Sea Water";
    String units "micromole (µM)";
  }
  SiO4 {
    Float32 _FillValue NaN;
    Float32 actual_range 0.26, 67.85;
    String bcodmo_name "SiO4";
    String description "SiO4";
    String long_name "Si O4";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/SLCAAAZX/";
    String units "micromole (µM)";
  }
  NO3 {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 13.56;
    String bcodmo_name "NO3";
    Float64 colorBarMaximum 50.0;
    Float64 colorBarMinimum 0.0;
    String description "NO3";
    String long_name "Mole Concentration Of Nitrate In Sea Water";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/NTRAIGGS/";
    String units "micromole (µM)";
  }
  NO2 {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 16.24;
    String bcodmo_name "NO2";
    Float64 colorBarMaximum 1.0;
    Float64 colorBarMinimum 0.0;
    String description "NO2";
    String long_name "Mole Concentration Of Nitrite In Sea Water";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/NTRIAAZX/";
    String units "micromole (µM)";
  }
  NH4 {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 4522.96;
    String bcodmo_name "Ammonium";
    Float64 colorBarMaximum 5.0;
    Float64 colorBarMinimum 0.0;
    String description "NH4";
    String long_name "Mole Concentration Of Ammonium In Sea Water";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/AMONAAZX/";
    String units "micromole (µM)";
  }
  d2H {
    Float32 _FillValue NaN;
    Float32 actual_range -190.53, -17.77;
    String bcodmo_name "d2H";
    String description "delta 2 H";
    String long_name "D2 H";
    String units "parts per thousand (o/oo)";
  }
  d18O {
    Float32 _FillValue NaN;
    Float32 actual_range -24.82, -1.41;
    String bcodmo_name "delta18O";
    String description "delta 18 O";
    String long_name "D18 O";
    String units "parts per thousand (o/oo)";
  }
  pcnt_dividing_cells {
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 30.0;
    String bcodmo_name "unknown";
    String description "percent dividing cells";
    String long_name "Pcnt Dividing Cells";
    String units "unitless";
  }
  PON_mg_N_mL {
    Float32 _FillValue NaN;
    Float32 actual_range 0.035, 26.914;
    String bcodmo_name "PON";
    String description "Particulate organic nitrogen";
    String long_name "PON Mg N M L";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/MDMAP013/";
    String units "milligrams Nitrogen per milliliter (mg N/mL)";
  }
  POC_mg_C_mL {
    Float32 _FillValue NaN;
    Float32 actual_range 0.211, 166.463;
    String bcodmo_name "POC";
    String description "Particulate organic Carbon";
    String long_name "POC Mg C M L";
    String nerc_identifier "https://vocab.nerc.ac.uk/collection/P01/current/CORGCAP1/";
    String units "milligrams Carbon per milliliter (mgCN/mL)";
  }
 }
  NC_GLOBAL {
    String access_formats ".htmlTable,.csv,.json,.mat,.nc,.tsv,.esriCsv,.geoJson";
    String acquisition_description 
"Sea ice brines were collected by the sackhole brine collection method.
Briefly, sea ice cores were drilled approximately three quarters of the way
through the ice column and removed to allow brine from the surrounding sea ice
to percolate for collection over several hours. Brines were collected and
pooled into 20 L acid-washed and sample rinsed cubitainers for transport to
the Barrow Arctic Research Center.
 
\\u00a0
 
Cryopeg brines were collected from discrete boreholes drilled in the floor of
the CRREL Ice Mine (also known as the Barrow Permafrost Tunnel). Briefly,
permafrost boreholes were drilled with an ethanol-rinsed SIPRE corer, and
brines were collected from the boreholes with a sterile vacuum pump apparatus.
Detailed notes about cryopeg brine collection can be found in\\u00a0Cooper et
al. 2019.
 
\\u00a0
 
Biological abundance samples were fixed in the field immediately after each
sample collection with formaldehyde at a final concentration of 2%. All
samples were placed in insulated containers and transported to the Barrow
Arctic Research Center within a few hours of collection and stored at 4\\u02daC
until aliquots were taken for each measurement. Nutrient and isotope aliquots
were frozen and stored at -20\\u02daC for transport back to the University of
Washington and the University of Alaska Fairbanks. All analytical methods
except for isotope measurements are detailed in Cooper et al. 2019";
    String awards_0_award_nid "789279";
    String awards_0_award_number "GBMF5488";
    String awards_0_data_url "https://www.moore.org/grant-detail?grantId=GBMF5488";
    String awards_0_funder_name "Gordon and Betty Moore Foundation: Marine Microbiology Initiative";
    String awards_0_funding_acronym "MMI";
    String awards_0_funding_source_nid "385";
    String cdm_data_type "Other";
    String comment 
"Sample data for gene flow in arctic subzero brines 
  PI: Jody W. Deming 
  Version: 2020-06-10";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_email "info@bco-dmo.org";
    String creator_name "BCO-DMO";
    String creator_type "institution";
    String creator_url "https://www.bco-dmo.org/";
    String data_source "extract_data_as_tsv version 2.3  19 Dec 2019";
    String dataset_current_state "Final and no updates";
    String date_created "2020-06-30T12:58:27Z";
    String date_modified "2020-07-16T14:18:00Z";
    String defaultDataQuery "&amp;time&lt;now";
    String doi "10.26008/1912/bco-dmo.817221.1";
    Float64 Easternmost_Easting -156.5049;
    Float64 geospatial_lat_max 71.473;
    Float64 geospatial_lat_min 71.2944;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -156.5049;
    Float64 geospatial_lon_min -156.7294;
    String geospatial_lon_units "degrees_east";
    String history 
"2021-10-21T12:47:52Z (local files)
2021-10-21T12:47:52Z https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_817221.html";
    String infoUrl "https://www.bco-dmo.org/dataset/817221";
    String institution "BCO-DMO";
    String keywords "abundance, ammonia, ammonium, bacterial, Bacterial_abundance, bco, bco-dmo, biological, borehole, cells, chemical, chemistry, Chl_a, Chl_a_Phaeo_ratio, chlorophyll, commerce, concentration, concentration_of_chlorophyll_in_sea_water, d18, d18O, d2H, data, dataset, date, department, dEPS, depth, dividing, dmo, doc, DOC_uM_C, earth, Earth Science > Oceans > Ocean Chemistry > Ammonia, Earth Science > Oceans > Ocean Chemistry > Chlorophyll, Earth Science > Oceans > Ocean Chemistry > Nitrate, Earth Science > Oceans > Ocean Chemistry > Phosphate, eps, erddap, ice, Ice_thickness, latitude, longitude, management, mass, mass_concentration_of_phosphate_in_sea_water, mole, mole_concentration_of_ammonium_in_sea_water, mole_concentration_of_nitrate_in_sea_water, mole_concentration_of_nitrite_in_sea_water, n02, name, nh4, nitrate, nitrite, NO2, no3, ocean, oceanography, oceans, office, pcnt, pcnt_dividing_cells, pEPS, phosphate, po4, poc, POC_mg_C_mL, POC_ug_C_mL, pon, PON_mg_N_mL, PON_ug_N_mL, preliminary, sackhole, Sackhole_Ice_Borehole_depth, salinity, sample, Sample_type, science, sea, seawater, sheet, sheet_name, SiO4, snow, Snow_thickness, station, temperature, thickness, type, u, vlp, VLP_abundance, water";
    String keywords_vocabulary "GCMD Science Keywords";
    String license "https://www.bco-dmo.org/dataset/817221/license";
    String metadata_source "https://www.bco-dmo.org/api/dataset/817221";
    Float64 Northernmost_Northing 71.473;
    String param_mapping "{'817221': {'lat': 'flag - latitude', 'lon': 'flag - longitude'}}";
    String parameter_source "https://www.bco-dmo.org/mapserver/dataset/817221/parameters";
    String people_0_affiliation "University of Washington";
    String people_0_affiliation_acronym "UW";
    String people_0_person_name "Jody W. Deming";
    String people_0_person_nid "789282";
    String people_0_role "Principal Investigator";
    String people_0_role_type "originator";
    String people_1_affiliation "University of Alaska Fairbanks";
    String people_1_affiliation_acronym "UAF";
    String people_1_person_name "Hajo Eicken";
    String people_1_person_nid "789283";
    String people_1_role "Co-Principal Investigator";
    String people_1_role_type "originator";
    String people_2_affiliation "University of Alaska Fairbanks";
    String people_2_affiliation_acronym "UAF";
    String people_2_person_name "Go Iwahana";
    String people_2_person_nid "789284";
    String people_2_role "Co-Principal Investigator";
    String people_2_role_type "originator";
    String people_3_affiliation "Woods Hole Oceanographic Institution";
    String people_3_affiliation_acronym "WHOI BCO-DMO";
    String people_3_person_name "Mathew Biddle";
    String people_3_person_nid "708682";
    String people_3_role "BCO-DMO Data Manager";
    String people_3_role_type "related";
    String project "Arctic Subzero Brines";
    String projects_0_acronym "Arctic Subzero Brines";
    String projects_0_description 
"GBMF Summary:
In support of developing a virus–bacterium–alga culture system and advancing methods to investigate how virus infection and stress impact gene flow and microbial evolution in cold, highly saline environments.";
    String projects_0_end_date "2020-04";
    String projects_0_name "Understanding How Virus Infection Affects Gene Flow and Microbial Evolution in Extreme Polar Environments";
    String projects_0_project_nid "789280";
    String projects_0_start_date "2016-10";
    String publisher_name "Biological and Chemical Oceanographic Data Management Office (BCO-DMO)";
    String publisher_type "institution";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 71.2944;
    String standard_name_vocabulary "CF Standard Name Table v55";
    String summary "Brine samples were collected from both sea ice and cryopeg near Utqia\\u0121vik, Alaska, USA. Snow and ice thickness along with sackhole core depth information are available for sea ice samples. Bacterial and viral abundances along with temperature, pH, salinity, inorganic nutrients, organic nutrients, EPS, and water isotopes were measured for select samples.";
    String title "Brine samples from both sea ice and cryopeg near Utqia\\u0121vik, Alaska, USA from 2017-05-08 to 2018-05-10";
    String version "1";
    Float64 Westernmost_Easting -156.7294;
    String xml_source "osprey2erddap.update_xml() v1.5";
  }
}

 

Using tabledap to Request Data and Graphs from Tabular Datasets

tabledap lets you request a data subset, a graph, or a map from a tabular dataset (for example, buoy data), via a specially formed URL. tabledap uses the OPeNDAP (external link) Data Access Protocol (DAP) (external link) and its selection constraints (external link).

The URL specifies what you want: the dataset, a description of the graph or the subset of the data, and the file type for the response.

Tabledap request URLs must be in the form
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/datasetID.fileType{?query}
For example,
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/pmelTaoDySst.htmlTable?longitude,latitude,time,station,wmo_platform_code,T_25&time>=2015-05-23T12:00:00Z&time<=2015-05-31T12:00:00Z
Thus, the query is often a comma-separated list of desired variable names, followed by a collection of constraints (e.g., variable<value), each preceded by '&' (which is interpreted as "AND").

For details, see the tabledap Documentation.


 
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