Data Access Form

Dataset Title:	BASIS CTD 58-163
Institution:	Bering Arctic Subarctic Integrated Survey (BASIS) (Dataset ID: basis-ctd-58-163)
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Make a graph

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Variable	Minimum	Maximum
time (UTC)	2002-08-26T00:00:00Z	2012-08-23T00:00:00Z

latitude (degrees_north)	58.0	58.0

longitude (degrees_east)	-163.0	-163.0

z (Altitude, m)	-39.0	0.0
mass_concentration_of_chlorophyll_a_in_sea_water (microg.L-1)	70000.0	6180000.0
mass_fraction_of_chlorophyll_a_in_sea_water (kg.m-3)	0.412993039	6.18
sea_water_practical_salinity (1e-3)	29.89	32.04
sea_water_density (kg.m-3)	22.52	25.0
sea_water_temperature (degree_Celsius)	6.1229	13.01
station (BASIS CTD 58-163)

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  time {
    UInt32 _ChunkSizes 512;
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.03032e+9, 1.34568e+9;
    String axis "T";
    String calendar "gregorian";
    String cf_role "profile_id";
    String ioos_category "Time";
    String long_name "Time";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 _FillValue NaN;
    Float64 actual_range 58.0, 58.0;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 _FillValue NaN;
    Float64 actual_range -163.0, -163.0;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  z {
    UInt32 _ChunkSizes 404;
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "up";
    Float64 _FillValue NaN;
    Float64 actual_range -39.0, 0.0;
    String axis "Z";
    String ioos_category "Location";
    String long_name "Altitude";
    String positive "up";
    String standard_name "altitude";
    String units "m";
  }
  mass_concentration_of_chlorophyll_a_in_sea_water {
    UInt32 _ChunkSizes 512;
    Float64 _FillValue -9999.0;
    Float64 actual_range 70000.0, 6180000.0;
    String id "1041847";
    String ioos_category "Other";
    String long_name "Chlorophyll a Mass Concentration";
    Float64 missing_value -9999.0;
    String platform "station";
    String short_name "mass_concentration_of_chlorophyll_a_in_sea_water";
    String standard_name "mass_concentration_of_chlorophyll_a_in_sea_water";
    String standard_name_url "http://mmisw.org/ont/cf/parameter/mass_concentration_of_chlorophyll_a_in_sea_water";
    String units "microg.L-1";
  }
  mass_fraction_of_chlorophyll_a_in_sea_water {
    UInt32 _ChunkSizes 512;
    Float64 _FillValue -9999.0;
    Float64 actual_range 0.412993039, 6.18;
    String id "1042983";
    String ioos_category "Other";
    String long_name "Chlorophyll a";
    Float64 missing_value -9999.0;
    String platform "station";
    String short_name "mass_fraction_of_chlorophyll_a_in_sea_water";
    String standard_name "mass_fraction_of_chlorophyll_a_in_sea_water";
    String standard_name_url "http://mmisw.org/ont/cf/parameter/mass_fraction_of_chlorophyll_a_in_sea_water";
    String units "kg.m-3";
  }
  sea_water_practical_salinity {
    UInt32 _ChunkSizes 512;
    Float64 _FillValue -9999.0;
    Float64 actual_range 29.89, 32.04;
    String id "1041849";
    String ioos_category "Other";
    String long_name "Salinity";
    Float64 missing_value -9999.0;
    String platform "station";
    String short_name "sea_water_practical_salinity";
    String standard_name "sea_water_practical_salinity";
    String standard_name_url "http://mmisw.org/ont/cf/parameter/sea_water_practical_salinity";
    String units "1e-3";
  }
  sea_water_density {
    UInt32 _ChunkSizes 512;
    Float64 _FillValue -9999.0;
    Float64 actual_range 22.52, 25.0;
    String id "1041848";
    String ioos_category "Other";
    String long_name "Sea Water Density";
    Float64 missing_value -9999.0;
    String platform "station";
    String short_name "sea_water_density";
    String standard_name "sea_water_density";
    String standard_name_url "http://mmisw.org/ont/cf/parameter/sea_water_density";
    String units "kg.m-3";
  }
  sea_water_temperature {
    UInt32 _ChunkSizes 512;
    Float64 _FillValue -9999.0;
    Float64 actual_range 6.1229, 13.01;
    String id "1041850";
    String ioos_category "Other";
    String long_name "Water Temperature";
    Float64 missing_value -9999.0;
    String platform "station";
    String short_name "sea_water_temperature";
    String standard_name "sea_water_temperature";
    String standard_name_url "http://mmisw.org/ont/cf/parameter/sea_water_temperature";
    String units "degree_Celsius";
  }
  station {
    String cf_role "timeseries_id";
    String ioos_category "Identifier";
    String ioos_code "urn:ioos:station:com.axiomdatascience:110991";
    String long_name "BASIS CTD 58-163";
    String short_name "basis-ctd-58-163";
    String type "fixed";
  }
 }
  NC_GLOBAL {
    String cdm_altitude_proxy "z";
    String cdm_data_type "TimeSeriesProfile";
    String cdm_profile_variables "time";
    String cdm_timeseries_variables "station,longitude,latitude";
    String contributor_email "feedback@axiomdatascience.com";
    String contributor_name "Axiom Data Science";
    String contributor_role "processor";
    String contributor_role_vocabulary "NERC";
    String contributor_url "https://www.axiomdatascience.com";
    String Conventions "IOOS-1.2, CF-1.6, ACDD-1.3, NCCSV-1.2";
    String creator_email "jeanette.gann@noaa.gov";
    String creator_institution "Bering Arctic Subarctic Integrated Survey (BASIS)";
    String creator_name "Bering Arctic Subarctic Integrated Survey (BASIS)";
    String creator_sector "gov_federal";
    String creator_type "institution";
    String creator_url "https://www.fisheries.noaa.gov/alaska/population-assessments/bering-arctic-and-subarctic-integrated-survey";
    String defaultDataQuery "mass_concentration_of_chlorophyll_a_in_sea_water,sea_water_density,sea_water_temperature,mass_fraction_of_chlorophyll_a_in_sea_water,z,time,sea_water_practical_salinity&time>=max(time)-3days";
    Float64 Easternmost_Easting -163.0;
    String featureType "TimeSeriesProfile";
    Float64 geospatial_lat_max 58.0;
    Float64 geospatial_lat_min 58.0;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -163.0;
    Float64 geospatial_lon_min -163.0;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 0.0;
    Float64 geospatial_vertical_min -39.0;
    String geospatial_vertical_positive "up";
    String geospatial_vertical_units "m";
    String history 
"Downloaded from Bering Arctic Subarctic Integrated Survey (BASIS) at https://www.fisheries.noaa.gov/alaska/population-assessments/bering-arctic-and-subarctic-integrated-survey
2024-12-26T19:30:11Z https://www.fisheries.noaa.gov/alaska/population-assessments/bering-arctic-and-subarctic-integrated-survey
2024-12-26T19:30:11Z http://erddap.sensors.ioos.us/erddap/tabledap/basis-ctd-58-163.html";
    Int32 id 110991;
    String infoUrl "https://sensors.ioos.us/#metadata/110991/station";
    String institution "Bering Arctic Subarctic Integrated Survey (BASIS)";
    String license 
"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.";
    String naming_authority "com.axiomdatascience";
    Float64 Northernmost_Northing 58.0;
    String platform "fixed";
    String platform_name "BASIS CTD 58-163";
    String platform_vocabulary "http://mmisw.org/ont/ioos/platform";
    String processing_level "Level 2";
    String publisher_email "jeanette.gann@noaa.gov";
    String publisher_institution "Bering Arctic Subarctic Integrated Survey (BASIS)";
    String publisher_name "Bering Arctic Subarctic Integrated Survey (BASIS)";
    String publisher_sector "gov_federal";
    String publisher_type "institution";
    String publisher_url "https://www.fisheries.noaa.gov/alaska/population-assessments/bering-arctic-and-subarctic-integrated-survey";
    String references "https://oceanview.pfeg.noaa.gov/erddap,https://www.fisheries.noaa.gov/alaska/population-assessments/bering-arctic-and-subarctic-integrated-survey,";
    String sourceUrl "https://www.fisheries.noaa.gov/alaska/population-assessments/bering-arctic-and-subarctic-integrated-survey";
    Float64 Southernmost_Northing 58.0;
    String standard_name_vocabulary "CF Standard Name Table v72";
    String station_id "110991";
    String summary "Timeseries data from 'BASIS CTD 58-163' (basis-ctd-58-163)";
    String time_coverage_end "2012-08-23T00:00:00Z";
    String time_coverage_start "2002-08-26T00:00:00Z";
    String title "BASIS CTD 58-163";
    Float64 Westernmost_Easting -163.0;
  }
}

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.

(easy) You can get data by using the dataset's Data Access Form or Subset form. They make the URL for you.
(easy) You can make a graph or map by using the dataset's Make A Graph form. It makes the URL for you.
(not hard) You can bypass the forms and get the data or make a graph or map by generating the URL by hand or with a computer program or script.

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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