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Dataset Title:  The International Herring Larvae Surveys Subscribe RSS
Institution:  ICES   (Dataset ID: IHLS)
Range: longitude = -10.836 to 4.5°E, latitude = 49.4 to 61.1°N, time = 1972-01-09T01:00:00Z to 2014-11-01T08:00:00Z
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Subset | Data Access Form | Files
 
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Things You Can Do With Your Graphs

Well, you can do anything you want with your graphs, of course. But some things you might not have considered are:

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  eventID {
    String long_name "eventID";
    String units "None";
    String units_uri "None";
  }
  ScientificName {
    String long_name "ScientificName";
    String units "https://vocab.nerc.ac.uk/collection/P01/current/SCNAME01/";
    String units_uri "https://vocab.nerc.ac.uk/collection/P01/current/SCNAME01/";
  }
  BasisOfRecord {
    String long_name "BasisOfRecord";
    String units "None";
    String units_uri "None";
  }
  InstitutionCode {
    String long_name "InstitutionCode";
    String units "None";
    String units_uri "None";
  }
  YearCollected {
    Float32 actual_range 1972.0, 2014.0;
    String long_name "YearCollected";
    String units "None";
    String units_uri "None";
  }
  MonthCollected {
    Float32 actual_range 1.0, 12.0;
    String long_name "MonthCollected";
    String units "None";
    String units_uri "None";
  }
  DayCollected {
    Float32 actual_range 1.0, 31.0;
    String long_name "DayCollected";
    String units "None";
    String units_uri "None";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 6.37668e+7, 1.4148288e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Time";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String time_precision "1970-01-01T00:00:00Z";
    String units "seconds since 1970-01-01T00:00:00Z";
    String units_uri "None";
  }
  TimeOfDay {
    Float32 actual_range 0.0, 23.0;
    String long_name "TimeOfDay";
    String units "None";
    String units_uri "None";
  }
  MaximumDepth {
    Float32 actual_range 0.0, 1005.0;
    String long_name "MaximumDepth";
    String units "None";
    String units_uri "None";
  }
  lifestage {
    String long_name "lifestage";
    String units "None";
    String units_uri "None";
  }
  ObservedIndividualCount {
    Float32 actual_range 1.0, 30830.0;
    String long_name "ObservedIndividualCount";
    String units "http://rs.tdwg.org/dwc/terms/individualCount";
    String units_uri "http://rs.tdwg.org/dwc/terms/individualCount";
  }
  Notes {
    String long_name "Notes";
    String units "None";
    String units_uri "None";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -10.836, 4.5;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
    String units_uri "http://rs.tdwg.org/dwc/terms/decimalLongitude";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 49.4, 61.1;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
    String units_uri "http://rs.tdwg.org/dwc/terms/decimalLatitude";
  }
  aphia_id {
    String long_name "aphia_id";
    String units "https://vocab.nerc.ac.uk/collection/P01/current/SNANID01/";
    String units_uri "https://vocab.nerc.ac.uk/collection/P01/current/SNANID01/";
  }
  occurrenceID {
    String long_name "occurrenceID";
    String units "None";
    String units_uri "None";
  }
  Sampling_instrument_name {
    String long_name "SDN:Q01::Q0100002";
    String sdn_parameter_urn "SDN:Q01::Q0100002";
    String units "None";
    String units_uri "None";
    String uri "https://vocab.nerc.ac.uk/collection/Q01/current/Q0100002/";
  }
  BedAbund {
    String altLabel "BedAbund";
    String long_name "SDN:P01::SDBIOL02";
    String sdn_parameter_urn "SDN:P01::SDBIOL02";
    String units "None";
    String units_uri "None";
    String uri "https://vocab.nerc.ac.uk/collection/P01/current/SDBIOL02/";
  }
  Length {
    String altLabel "Length";
    String long_name "SDN:P01::OBSINDLX";
    String sdn_parameter_urn "SDN:P01::OBSINDLX";
    String units "None";
    String units_uri "None";
    String uri "https://vocab.nerc.ac.uk/collection/P01/current/OBSINDLX/";
  }
 }
  NC_GLOBAL {
    String AccConstrDescription "This license lets others distribute, remix, tweak, and build upon your work, even commercially, as long as they credit you for the original creation. This is the most accommodating of licenses offered. Recommended for maximum dissemination and use of licensed materials.";
    String AccConstrDisplay "This dataset is licensed under a Creative Commons Attribution 4.0 International License.";
    String AccConstrEN "Attribution (CC BY)";
    String AccessConstraint "Attribution (CC BY)";
    String AccessConstraints "ICES Data Policy: https://www.ices.dk/data/guidelines-and-policy/Pages/ICES-data-policy.aspx";
    String Acronym "IHLS";
    String BrackishFlag "0";
    String CDate "2013-10-31";
    String cdm_data_type "Other";
    String CheckedFlag "0";
    String Citation "ICES. The International Herring Larvae Surveys. Available online at http://eggsandlarvae.ices.dk. Consulted on yyyy-mm-dd.";
    String Comments "None";
    String ContactEmail "None";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_name "Holdsworth";
    String CurrencyDate "None";
    String DasID "4423";
    String DasOrigin "Monitoring: field survey";
    String DasType "Data";
    String DasTypeID "1";
    String DescrCompFlag "0";
    String DescrTransFlag "0";
    Float64 Easternmost_Easting 4.5;
    String EmbargoDate "None";
    String EngAbstract "The ICES programme of international herring larval surveys in the North Sea and adjacent areas is in operation since 1967. The main purpose of this programme is to provide quantitative estimates of herring larval abundance, which are used as a relative index of changes of the herring spawning‐stock biomass in the assessment. The larvae surveys are carried out in specific periods and areas, following autumn and winter spawning activity of herring from north to south. Catch data together with specific information like haul position, survey area etc. are reported to the ICES International Herring Larvae database annually. The database contains information about the surveys conducted since 1972. The ICES responsible group for the dataset is WGIPS.";
    String EngDescr "None";
    String FreshFlag "0";
    Float64 geospatial_lat_max 61.1;
    Float64 geospatial_lat_min 49.4;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 4.5;
    Float64 geospatial_lon_min -10.836;
    String geospatial_lon_units "degrees_east";
    String history 
"2025-03-09T23:35:05Z (local files)
2025-03-09T23:35:05Z http://erddap.eurobis.org/tabledap/IHLS.das";
    String infoUrl "None";
    String InputNotes "None";
    String institution "ICES";
    String keywords "aphia_id, BasisOfRecord, DayCollected, eventID, https://vocab.nerc.ac.uk/collection/P01/current/OBSINDLX/, https://vocab.nerc.ac.uk/collection/P01/current/SDBIOL02/, https://vocab.nerc.ac.uk/collection/Q01/current/Q0100002/, InstitutionCode, latitude, lifestage, longitude, MaximumDepth, MonthCollected, Notes, ObservedIndividualCount, occurrenceID, ScientificName, time, TimeOfDay, YearCollected";
    String License "https://creativecommons.org/licenses/by/4.0/";
    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 Lineage "None";
    String MarineFlag "1";
    Float64 Northernmost_Northing 61.1;
    String OrigAbstract "None";
    String OrigDescr "None";
    String OrigDescrLang "None";
    String OrigDescrLangNL "None";
    String OrigLangCode "None";
    String OrigTitle "None";
    String OrigTitleLang "None";
    String OrigTitleLangCode "None";
    String OrigTitleLangNL "None";
    String Progress "In Progress";
    String PublicFlag "1";
    String ReleaseDate "None";
    String ReleaseDate0 "None";
    String RevisionDate "None";
    String SizeReference "More than 195,983 records";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 49.4;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String StandardTitle "The International Herring Larvae Surveys";
    String subsetVariables "ScientificName,BasisOfRecord,YearCollected,MonthCollected,DayCollected,lifestage,aphia_id";
    String summary "The ICES programme of international herring larval surveys in the North Sea and adjacent areas is in operation since 1967. The main purpose of this programme is to provide quantitative estimates of herring larval abundance, which are used as a relative index of changes of the herring spawning‐stock biomass in the assessment. The larvae surveys are carried out in specific periods and areas, following autumn and winter spawning activity of herring from north to south. Catch data together with specific information like haul position, survey area etc. are reported to the ICES International Herring Larvae database annually. The database contains information about the surveys conducted since 1972. The ICES responsible group for the dataset is WGIPS.";
    String TerrestrialFlag "0";
    String time_coverage_end "2014-11-01T08:00:00Z";
    String time_coverage_start "1972-01-09T01:00:00Z";
    String title "The International Herring Larvae Surveys";
    String UDate "2022-06-16";
    String VersionDate "None";
    String VersionDay "None";
    String VersionMonth "None";
    String VersionName "None";
    String VersionYear "None";
    String VlizCoreFlag "1";
    Float64 Westernmost_Easting -10.836;
  }
}

 

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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