ERDDAP > tabledap > Data Access Form

Dataset Title:	Sea surface temperature data along the British Columbia Coast
Institution:	Hakai Institute   (Dataset ID: HakaiSentinelTemperature)
Information:	Summary | License | FGDC | ISO 19115 | Metadata | Background | Subset | Make a graph

 

Variable	Optional Constraint #1		Optional Constraint #2		Minimum    or a List of Values	Maximum
station	!= =~ <= >= = < >		!= =~ <= >= = < >		"bamfield" "campbell_river" "cortes_bay" "cowichan_bay" "denman_island" "descanso_bay" "false_bay" "ford_cove" "heather_marina" "heriot_bay" "hope_bay" "horseshoe_bay" "indian_arm" "james_island_pier" "miners_bay" "PBS" "pender_harbour" "PSEC" "retreat_cove" "silva_bay" "sooke" "surge_narrows" "whaler_bay" "winter_cove"
instrument_sn (Instrument Serial Number)	!= =~ <= >= = < >		!= =~ <= >= = < >		"21153572" "21153573" "21234295" "21234297" "21234298" "21234301" "21234302" "21234309" "21234310" "21234311" "21234319" "21234320" "21234321" "21234322" "21234331" "21234352" "21255251" "21255253" "21255255" "21255261" "21255264" "21255266" "21291004" "21291006" "21291007" "21291008" "21291010" "21291011" "21291013"
latitude (degrees_north)	!= =~ <= >= = < >		!= =~ <= >= = < >
longitude (degrees_east)	!= =~ <= >= = < >		!= =~ <= >= = < >
time (Measurement Time, UTC)	!= =~ <= >= = < >		!= =~ <= >= = < >
depth (m)	!= =~ <= >= = < >		!= =~ <= >= = < >
water_temp (degree_Celsius)	!= =~ <= >= = < >		!= =~ <= >= = < >
water_temp_ql (water_temp Quality Level)	!= =~ <= >= = < >		!= =~ <= >= = < >
water_temp_qc (water_temp Flag)	!= =~ <= >= = < >		!= =~ <= >= = < >
water_temp_uql	!= =~ <= >= = < >		!= =~ <= >= = < >		1 3

 

Server-side Functions

distinct()

orderBy orderByDescending orderByClosest orderByCount orderByLimit orderByMax orderByMin orderByMinMax orderByMean orderBySum (" station instrument_sn latitude longitude time depth water_temp water_temp_ql water_temp_qc water_temp_uql station instrument_sn latitude longitude time depth water_temp water_temp_ql water_temp_qc water_temp_uql station instrument_sn latitude longitude time depth water_temp water_temp_ql water_temp_qc water_temp_uql station instrument_sn latitude longitude time depth water_temp water_temp_ql water_temp_qc water_temp_uql station instrument_sn latitude longitude time depth water_temp water_temp_ql water_temp_qc water_temp_uql ")

File type: (more information) .asc - View OPeNDAP-style ISO-8859-1 comma-separated text. .csv - Download a ISO-8859-1 comma-separated text table (line 1: names; line 2: units; ISO 8601 times). .csvp - Download a ISO-8859-1 .csv file with line 1: name (units). Times are ISO 8601 strings. .csv0 - Download a ISO-8859-1 .csv file without column names or units. Times are ISO 8601 strings. .dataTable - A JSON file formatted for use with the Google Visualization client library (Google Charts). .das - View the dataset's metadata via an ISO-8859-1 OPeNDAP Dataset Attribute Structure (DAS). .dds - View the dataset's structure via an ISO-8859-1 OPeNDAP Dataset Descriptor Structure (DDS). .dods - OPeNDAP clients use this to download the data in the DODS binary format. .esriCsv - Download a ISO_8859_1 .csv file for ESRI's ArcGIS 9.x and below (separate date and time columns). .fgdc - View the dataset's UTF-8 FGDC .xml metadata. .geoJson - Download longitude,latitude,otherColumns data as a UTF-8 GeoJSON .json file. .graph - View a Make A Graph web page. .help - View a web page with a description of tabledap. .html - View an OPeNDAP-style HTML Data Access Form. .htmlTable - View a UTF-8 .html web page with the data in a table. Times are ISO 8601 strings. .iso19115 - View the dataset's ISO 19115-2/19139 UTF-8 .xml metadata. .itx - Download an ISO-8859-1 Igor Text File. Each response column becomes a wave. .json - View a table-like UTF-8 JSON file (missing value = 'null'; times are ISO 8601 strings). .jsonlCSV1 - View a UTF-8 JSON Lines CSV file with column names on line 1 (mv = 'null'; times are ISO 8601 strings). .jsonlCSV - View a UTF-8 JSON Lines CSV file without column names (mv = 'null'; times are ISO 8601 strings). .jsonlKVP - View a UTF-8 JSON Lines file with Key:Value pairs (missing value = 'null'; times are ISO 8601 strings). .mat - Download a MATLAB binary file. .nc - Download a flat, table-like, NetCDF-3 binary file with COARDS/CF/ACDD metadata. .ncHeader - View the UTF-8 header (the metadata) for the NetCDF-3 .nc file. .ncCF - Download a NetCDF-3 CF Discrete Sampling Geometries file (Contiguous Ragged Array). .ncCFHeader - View the UTF-8 header (the metadata) for the .ncCF file. .ncCFMA - Download a NetCDF-3 CF Discrete Sampling Geometries file (Multidimensional Array). .ncCFMAHeader - View the UTF-8 header (the metadata) for the .ncCFMA file. .nccsv - Download a NetCDF-3-like 7-bit ASCII NCCSV .csv file with COARDS/CF/ACDD metadata. .nccsvMetadata - View the dataset's metadata as the top half of a 7-bit ASCII NCCSV .csv file. .ncoJson - Download a UTF-8 NCO lvl=2 JSON file with COARDS/CF/ACDD metadata. .odvTxt - Download longitude,latitude,time,otherColumns as an ISO-8859-1 ODV Generic Spreadsheet File (.txt). .subset - View an HTML form which uses faceted search to simplify picking subsets of the data. .tsv - Download a ISO-8859-1 tab-separated text table (line 1: names; line 2: units; ISO 8601 times). .tsvp - Download a ISO-8859-1 .tsv file with line 1: name (units). Times are ISO 8601 strings. .tsv0 - Download a ISO-8859-1 .tsv file without column names or units. Times are ISO 8601 strings. .wav - Download a .wav audio file. All columns must be numeric and of the same type. .xhtml - View a UTF-8 XHTML (XML) file with the data in a table. Times are ISO 8601 strings. .kml - View a .kml file, suitable for Google Earth. .smallPdf - View a small .pdf image file with a graph or map. .pdf - View a standard, medium-sized .pdf image file with a graph or map. .largePdf - View a large .pdf image file with a graph or map. .smallPng - View a small .png image file with a graph or map. .png - View a standard, medium-sized .png image file with a graph or map. .largePng - View a large .png image file with a graph or map. .transparentPng - View a .png image file (just the data, without axes, landmask, or legend).

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  station {
    String cf_role "timeseries_id";
  }
  instrument_sn {
    String long_name "Instrument Serial Number";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    String axis "Y";
    String description "Fixed latitude of the site";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    String axis "X";
    String description "Fixed longitude of the site";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  time {
    String _CoordinateAxisType "Time";
    String axis "T";
    String ioos_category "Time";
    String long_name "Measurement Time";
    String source_name "measurement_time";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    String axis "Z";
    Float64 colorBarMaximum 70.0;
    Float64 colorBarMinimum -1.0;
    String colorBarPalette "TopographyDepth";
    String ioos_category "Location";
    String long_name "Depth";
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  water_temp {
    String ancillary_data "water_temp_qc water_temp_uql";
    String long_name "Water Temperature";
    String standard_name "sea_water_temperature";
    String units "degree_Celsius";
  }
  water_temp_ql {
    String ioos_category "Quality";
    String long_name "water_temp Quality Level";
  }
  water_temp_qc {
    String ioos_category "Quality";
    String long_name "water_temp Flag";
  }
  water_temp_uql {
    Int32 actual_range 1, 3;
    Float64 colorBarMaximum 10.0;
    Float64 colorBarMinimum 0.0;
    String flag_meaning "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Byte flag_values 1, 2, 3, 4, 9;
    String ioos_category "Quality";
    String long_name "Water Temperature UNESCO Q Level";
    Int32 missing_value 2;
    String standard_name "aggregate_quality_flag";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "station,latitude,longitude";
    String comment 
"##Limitations:
            Appropriate QC may not yet be applied.";
    String contributor_name "Earle, Heather;Whalen, Matt;Hakai Institute;Krzus, Lauren";
    String contributor_role "custodian,owner,coAuthor,distributor;owner,coAuthor,distributor;publisher;custodian,owner,distributor";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_city "Campbell River";
    String creator_country "Canada";
    String creator_email "heather.earle@hakai.org";
    String creator_institution "Hakai Institute";
    String creator_name "Earle, Heather";
    String creator_ror "https://ror.org/02pry0c91";
    String creator_type "person";
    String creator_url "https://www.hakai.org/";
    String date_modified "2024-08-22T20:03:31.370Z";
    String featureType "TimeSeries";
    String geospatial_lat_units "degrees_north";
    String geospatial_lon_units "degrees_east";
    String geospatial_vertical_max "60.0";
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2024-12-27T01:21:04Z (source database)
2024-12-27T01:21:04Z https://catalogue.hakai.org/erddap/tabledap/HakaiSentinelTemperature.html";
    String id "5185ac00-8148-4472-adfd-21741d8a10ce";
    String infoUrl "https://catalogue.hakai.org/dataset/ca-cioos_5185ac00-8148-4472-adfd-21741d8a10ce";
    String institution "Hakai Institute";
    String keywords "CIOOS:seaSurfaceTemperature, physical-chemical, water temperature";
    String keywords_vocabulary "CIOOS: CIOOS Essential Ocean Variables Vocabulary";
    String license "https://creativecommons.org/licenses/by-nc/4.0/";
    String metadata_form "https://hakaiinstitute.github.io/hakai-metadata-entry-form#/en/hakai/57FPdLIBPcb9BOLfIOW44RJVywN2/-NH0r8ddHNhVJ5bXkyqR";
    String metadata_link "https://catalogue.hakai.org/dataset/ca-cioos_5185ac00-8148-4472-adfd-21741d8a10ce";
    String naming_authority "ca.cioos";
    String platform "coastal structure";
    String platform_vocabulary "https://vocab.nerc.ac.uk/collection/L06/current/";
    String product_version "1.1";
    String progress "onGoing";
    String project "Sentinels of Change";
    String publisher_city "Campbell River";
    String publisher_country "Canada";
    String publisher_email "data@hakai.org";
    String publisher_institution "Hakai Institute";
    String publisher_name "Hakai Institute";
    String publisher_ror "https://ror.org/02pry0c91";
    String publisher_type "institution";
    String publisher_url "https://www.hakai.org/";
    String sourceUrl "(source database)";
    String standard_name_vocabulary "CF Standard Name Table v79";
    String subsetVariables "station,instrument_sn,water_temp_uql";
    String summary 
"This dataset is comprised of sea surface temperature data collected
            using HOBO TidbiT MX Temperature 400 data loggers (MX2203) deployed in various locations
            across the BC coast but particularly in the Canadian portion of the Salish Sea. Loggers
            are suspended at 0.5 metres depth from floating docks in proximity to light traps as
            part of the Sentinels of Change project which monitors larval Dungeness crab
            (Metacarcinus magister) using light traps. The loggers are programmed to record the
            water temperature at 10 minute intervals, starting at 12:00 on April 15th until 12:00
            September 1st, each year, starting in 2022. Loggers are removed from the water after
            September 1st and replaced the following spring before April 15th. These data will be
            collected each year until 2030.

            This data package includes:
            -Sea surface temperature data from April 15th 2022 until September 1st (the duration of
            the light trap collection season)
            -Site metadata, including temperature logger location";
    String title "Sea surface temperature data along the British Columbia Coast";
  }
}

 

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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 Data Access Protocol (DAP) and its selection constraints.

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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