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Dataset Title:  CPS Trawl Life History Length Frequency Data Subscribe RSS
Institution:  NOAA-Fisheries/Southwest Fisheries Science Center   (Dataset ID: FRDCPSTrawlLHLengthFrequency)
Range: longitude = -134.0793 to -117.3796°E, latitude = 30.8323 to 54.3997°N, time = 2004-07-08T05:45:00Z to 2016-04-21T09:57:00Z
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Subset | Data Access Form
 
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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 {
  cruise {
    Int32 actual_range 200407, 201604;
    String description "Six-digit cruise number fixed by year and predominant month of cruise, often with overlapping information in the CalCOFI Database.";
    String ioos_category "Identifier";
    String long_name "Cruise";
  }
  ship {
    String description "CalCOFI type two-character ship code.";
    String ioos_category "Identifier";
    String long_name "Ship";
  }
  haul {
    Int32 actual_range 1, 160;
    String description "Haul number, consecutively from 1 within a ship of a cruise.";
    String ioos_category "Identifier";
    String long_name "Haul Number";
  }
  collection {
    Int32 actual_range 2137, 3621;
    String description "Four-digit number used with specimen number for labeling gonads and during subsequent lab-histo processing.";
    String ioos_category "Identifier";
    String long_name "Collection";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 30.8323, 54.3997;
    String axis "Y";
    String description "Latitude  position at Equilibrium Time, when fishing starts.";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -134.0793, -117.3796;
    String axis "X";
    String description "Longitude  position at Equilibrium Time, when fishing starts.";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.0892655e+9, 1.46123262e+9;
    String axis "T";
    String description "Date-Time when net and wire are fully deployed and fishing has begun.";
    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";
  }
  itis_tsn {
    String description "Intergrated Taxomomic Information System Taxonomic Serial Number.";
    String ioos_category "Identifier";
    String long_name "ItisTSN";
  }
  scientific_name {
    String description "Scientific name of species.";
    String ioos_category "Identifier";
    String long_name "Scientific Name";
  }
  length_class {
    String description "Midpoint  of 10mm bin class with respect to the length type. Example of a bin with midpoint of  100mm:  95 -------- < 105";
    String ioos_category "Other";
    String long_name "Length Class";
  }
  length_type {
    String description "Code of two characters, indicating the type of length measurement: SL = Standard; TL= Total; FL= Fork; ML = Mantle";
    String ioos_category "Other";
    String long_name "Length Type";
  }
  male {
    String description "Count of male specimens measured in the specified length class.";
    String ioos_category "Other";
    String long_name "Male";
  }
  female {
    String description "Count of female specimens measured in the specified length class.";
    String ioos_category "Other";
    String long_name "Female";
  }
  unknown {
    String description "Count of specimens with sex \"notDetermined\" measured in the specified length class.";
    String ioos_category "Other";
    String long_name "Unknown";
  }
 }
  NC_GLOBAL {
    String acknowledgment "National Oceanic and Atmospheric Administration, Southwest Fisheries Science Center";
    String cdm_data_type "Other";
    String contributor_name "Fisheries Research Division";
    String Conventions "COARDS, CF-1.0, Unidata Dataset Discovery v1.0, NCCSV-1.0";
    String creator_email "swfsc.cps-lht@noaa.gov";
    String creator_name "Coastal Pelagic Species Life History Program";
    String creator_url "https://swfsc.noaa.gov/FRD/";
    String date_created "2014-12-12";
    String date_issued "2014-12-12";
    String date_modified "2014-12-12";
    String defaultGraphQuery "longitude,latitude,time&scientific_name=\"Merluccius productus\"&.draw=markers&.marker=5|5&.color=0x000000&.colorBar=|||||";
    Float64 Easternmost_Easting -117.3796;
    Float64 geospatial_lat_max 54.3997;
    Float64 geospatial_lat_min 30.8323;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -117.3796;
    Float64 geospatial_lon_min -134.0793;
    String geospatial_lon_units "degrees_east";
    String history 
"2018-10-15T09:19:54Z (source database)
2018-10-15T09:19:54Z http://coastwatch.pfeg.noaa.gov/tabledap/FRDCPSTrawlLHLengthFrequency.das";
    String infoUrl "https://swfsc.noaa.gov/FRD/";
    String institution "NOAA-Fisheries/Southwest Fisheries Science Center";
    String keywords "life history, Oceans >Coastal pelagic species, trawl";
    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.";
    Float64 Northernmost_Northing 54.3997;
    String project "Costal Pelagic Species Surveys";
    String publisher_email "swfsc.cps-lht@noaa.gov";
    String publisher_name "Coastal Pelagic Species Life History Program";
    String sourceUrl "(source database)";
    Float64 Southernmost_Northing 30.8323;
    String standard_name_vocabulary "CF-11";
    String subsetVariables "cruise, ship, haul, collection,scientific_name, time, latitude, longitude";
    String summary "Length distribution of a subset of individuals from a species (mainly non-target) caught during SWFSC-FRD fishery independent trawl surveys of coastal pelagic species. Measured lengths for indicated length type (fork, standard, total, or mantle) were grouped in 10 mm bins (identified by the midpoint of the length class) and counts are recorded by sex. Does not include species with individual lengths recorded in the CPS Trawl Life History Specimen dataset.";
    String time_coverage_end "2016-04-21T09:57:00Z";
    String time_coverage_start "2004-07-08T05:45:00Z";
    String title "CPS Trawl Life History Length Frequency Data";
    Float64 Westernmost_Easting -134.0793;
  }
}

 

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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