ERDDAP > tabledap > Data Access Form

Dataset Title:	NOS CO-OPS Currents Data, Cape Cod Canal, West End, 6-Minute
Institution:	NOAA NOS CO-OPS   (Dataset ID: PORTS_CC_realtime)
Information:	Summary | License | FGDC | ISO 19115 | Metadata | Background | Files | Make a graph

 

Variable	Optional Constraint #1		Optional Constraint #2		Minimum	Maximum
stationID	!= =~ <= >= = < >		!= =~ <= >= = < >		"ca0101"	"ca0101"
stationName	!= =~ <= >= = < >		!= =~ <= >= = < >		"Cape Cod Canal We..."	"Cape Cod Canal We..."
longitude (degrees_east)	!= =~ <= >= = < >		!= =~ <= >= = < >		-70.6249	-70.6249
latitude (degrees_north)	!= =~ <= >= = < >		!= =~ <= >= = < >		41.7375	41.7375
time (UTC)	!= =~ <= >= = < >		!= =~ <= >= = < >		2022-07-24T16:43:00Z	2024-09-16T18:15:00Z
CS (Current Speed, cm/s)	!= =~ <= >= = < >		!= =~ <= >= = < >		"0.6"	"99.90510248"
CD (Current Direction, degrees_true)	!= =~ <= >= = < >		!= =~ <= >= = < >		"1.0"	"99.0"
Current_direction_qartod_gross_range_test	!= =~ <= >= = < >		!= =~ <= >= = < >		1	9
Current_direction_qartod_spike_test	!= =~ <= >= = < >		!= =~ <= >= = < >		1	9
Current_direction_qartod_flat_line_test	!= =~ <= >= = < >		!= =~ <= >= = < >		1	9
Current_direction_qartod_rate_of_change_test	!= =~ <= >= = < >		!= =~ <= >= = < >
Current_speed_qartod_gross_range_test	!= =~ <= >= = < >		!= =~ <= >= = < >		1	4
Current_speed_qartod_spike_test	!= =~ <= >= = < >		!= =~ <= >= = < >		1	4
Current_speed_qartod_flat_line_test	!= =~ <= >= = < >		!= =~ <= >= = < >		1	1
Current_speed_qartod_rate_of_change_test	!= =~ <= >= = < >		!= =~ <= >= = < >
qartod_aggregate (QARTOD Aggregate Flag)	!= =~ <= >= = < >		!= =~ <= >= = < >		1	4

 

Server-side Functions

distinct()

orderBy orderByDescending orderByClosest orderByCount orderByLimit orderByMax orderByMin orderByMinMax orderByMean orderBySum (" stationID stationName longitude latitude time CS CD Current_direction_qartod_gross_range_test Current_direction_qartod_spike_test Current_direction_qartod_flat_line_test Current_direction_qartod_rate_of_change_test Current_speed_qartod_gross_range_test Current_speed_qartod_spike_test Current_speed_qartod_flat_line_test Current_speed_qartod_rate_of_change_test qartod_aggregate stationID stationName longitude latitude time CS CD Current_direction_qartod_gross_range_test Current_direction_qartod_spike_test Current_direction_qartod_flat_line_test Current_direction_qartod_rate_of_change_test Current_speed_qartod_gross_range_test Current_speed_qartod_spike_test Current_speed_qartod_flat_line_test Current_speed_qartod_rate_of_change_test qartod_aggregate stationID stationName longitude latitude time CS CD Current_direction_qartod_gross_range_test Current_direction_qartod_spike_test Current_direction_qartod_flat_line_test Current_direction_qartod_rate_of_change_test Current_speed_qartod_gross_range_test Current_speed_qartod_spike_test Current_speed_qartod_flat_line_test Current_speed_qartod_rate_of_change_test qartod_aggregate stationID stationName longitude latitude time CS CD Current_direction_qartod_gross_range_test Current_direction_qartod_spike_test Current_direction_qartod_flat_line_test Current_direction_qartod_rate_of_change_test Current_speed_qartod_gross_range_test Current_speed_qartod_spike_test Current_speed_qartod_flat_line_test Current_speed_qartod_rate_of_change_test qartod_aggregate stationID stationName longitude latitude time CS CD Current_direction_qartod_gross_range_test Current_direction_qartod_spike_test Current_direction_qartod_flat_line_test Current_direction_qartod_rate_of_change_test Current_speed_qartod_gross_range_test Current_speed_qartod_spike_test Current_speed_qartod_flat_line_test Current_speed_qartod_rate_of_change_test qartod_aggregate ")

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 {
  stationID {
    String cf_role "timeseries_id";
    String ioos_category "Identifier";
    String long_name "Station ID";
  }
  stationName {
    String ioos_category "Identifier";
    String long_name "Station Name";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 actual_range -70.6249, -70.6249;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range 41.7375, 41.7375;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.65868098e+9, 1.7265105e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Time";
    String source_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";
  }
  CS {
    String ioos_category "Currents";
    String long_name "Current Speed";
    String standard_name "sea_water_speed";
    String units "cm/s";
  }
  CD {
    String ioos_category "Currents";
    String long_name "Current Direction";
    String standard_name "direction_of_sea_water_velocity";
    String units "degrees_true";
  }
  Current_direction_qartod_gross_range_test {
    Int32 actual_range 1, 9;
    String flag_meanings "\"PASS NOT_EVALUATED SUSPECT FAIL MISSING\"";
    String flag_values "1, 2, 3, 4, 9";
    String ioos_category "quality";
    String long_name "QARTOD Current Direction Gross Range Test Flag";
    String standard_name "cd_qartod_gross_range_test_flag";
  }
  Current_direction_qartod_spike_test {
    Int32 actual_range 1, 9;
    String flag_meanings "\"PASS NOT_EVALUATED SUSPECT FAIL MISSING\"";
    String flag_values "1, 2, 3, 4, 9";
    String ioos_category "quality";
    String long_name "QARTOD Current Direction Spike Test Flag";
    String standard_name "cd_spike_test_flag";
  }
  Current_direction_qartod_flat_line_test {
    Int32 actual_range 1, 9;
    String flag_meanings "\"PASS NOT_EVALUATED SUSPECT FAIL MISSING\"";
    String flag_values "1, 2, 3, 4, 9";
    String ioos_category "quality";
    String long_name "QARTOD Current Direction Flat Line Test Flag";
    String standard_name "cd_flat_line_test_flag";
  }
  Current_direction_qartod_rate_of_change_test {
    String flag_meanings "\"PASS NOT_EVALUATED SUSPECT FAIL MISSING\"";
    String flag_values "1, 2, 3, 4, 9";
    String ioos_category "quality";
    String long_name "QARTOD Current Direction Rate of Change Test Flag";
    String standard_name "cd_rate_of_change_test_flag";
  }
  Current_speed_qartod_gross_range_test {
    Int32 actual_range 1, 4;
    String flag_meanings "\"PASS NOT_EVALUATED SUSPECT FAIL MISSING\"";
    String flag_values "1, 2, 3, 4, 9";
    String ioos_category "quality";
    String long_name "QARTOD Current Speed Gross Range Test Flag";
    String standard_name "cs_qartod_gross_range_test_flag";
  }
  Current_speed_qartod_spike_test {
    Int32 actual_range 1, 4;
    String flag_meanings "\"PASS NOT_EVALUATED SUSPECT FAIL MISSING\"";
    String flag_values "1, 2, 3, 4, 9";
    String ioos_category "quality";
    String long_name "QARTOD Current Speed Spike Test Flag";
    String standard_name "cs_spike_test_flag";
  }
  Current_speed_qartod_flat_line_test {
    Int32 actual_range 1, 1;
    String flag_meanings "\"PASS NOT_EVALUATED SUSPECT FAIL MISSING\"";
    String flag_values "1, 2, 3, 4, 9";
    String ioos_category "quality";
    String long_name "QARTOD Current Speed Flat Line Test Flag";
    String standard_name "cs_flat_line_test_flag";
  }
  Current_speed_qartod_rate_of_change_test {
    String flag_meanings "\"PASS NOT_EVALUATED SUSPECT FAIL MISSING\"";
    String flag_values "1, 2, 3, 4, 9";
    String ioos_category "quality";
    String long_name "QARTOD Current Speed Rate of Change Test Flag";
    String standard_name "cs_rate_of_change_test_flag";
  }
  qartod_aggregate {
    Int32 actual_range 1, 4;
    String flag_meanings "\"PASS NOT_EVALUATED SUSPECT FAIL MISSING\"";
    String flag_values "1, 2, 3, 4, 9";
    String ioos_category "quality";
    String long_name "QARTOD Aggregate Flag";
    String standard_name "aggregate_quality_flag";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "stationID, longitude, latitude";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_email "COOPS.IOOS@noaa.gov";
    String creator_name "NOAA NOS COOPS";
    String creator_type "institution";
    String creator_url "https: tidesandcurrents.noaa.gov>";
    Float64 Easternmost_Easting -70.6249;
    String featureType "TimeSeries";
    Float64 geospatial_lat_max 41.7375;
    Float64 geospatial_lat_min 41.7375;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -70.6249;
    Float64 geospatial_lon_min -70.6249;
    String geospatial_lon_units "degrees_east";
    String history 
"2024-09-16T20:20:45Z https://opendap.co-ops.nos.noaa.gov/axis/webservices/currents/plain/response.jsp?metadata=yes
2024-09-16T20:20:45Z http://data.neracoos.org/erddap/tabledap/PORTS_CC_realtime.html";
    String infoUrl "https://tidesandcurrents.noaa.gov";
    String institution "NOAA NOS CO-OPS";
    String keywords "6-minute, active, circulation, co-ops, current, currents, data, date, direction, direction_of_sea_water_velocity, Earth Science > Oceans > Ocean Circulation >\\n            Ocean Currents, established, identifier, minute, name, noaa, nos, ocean, oceans, ops, sea, sea_water_speed, seawater, speed, station, time, velocity, water";
    String license 
"\"These raw data have not been subjected to the National Ocean Services (NOS)
            Quality Control procedures, and do not necessarily meet the criteria and
            standards of official NOS data. They are released for limited public use with
            appropriate caution.

            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.\"";
    Float64 Northernmost_Northing 41.7375;
    String publisher_email "info@neracoos.org";
    String publisher_name 
"Northeastern Regional Association of Coastal and Ocean Observing
            Systems (NERACOOS)";
    String publisher_phone "(603) 319 1785";
    String publisher_url "http://www.neracoos.org/";
    String sourceUrl "https://opendap.co-ops.nos.noaa.gov/axis/webservices/currents/plain/response.jsp?metadata=yes";
    Float64 Southernmost_Northing 41.7375;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String summary 
"This dataset has surface Active Currents data from NOAA NOS Center for
            Operational Oceanographic Products and Services (CO-OPS).";
    String time_coverage_end "2024-09-16T18:15:00Z";
    String time_coverage_start "2022-07-24T16:43:00Z";
    String title "NOS CO-OPS Currents Data, Cape Cod Canal, West End, 6-Minute";
    Float64 Westernmost_Easting -70.6249;
  }
}

 

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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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