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Dataset Title:	Golden Gate and Pt. Reyes Acoustic Detections
Institution:	NOAA-Fisheries/Southwest Fisheries Science Center (Dataset ID: FEDAc_Salmon)
Range:	longitude = -124.02 to -121.88°E, latitude = 37.1616 to 46.6893°N, time = 2005-04-03T02:44:45Z to 2013-12-29T06:11:36Z
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| 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:

Web page authors can embed a graph of the latest data in a web page using HTML <img> tags.
Anyone can use ERDDAPs Slide Sorter to build a personal web page that displays graphs with the latest data (or other images or HTML content), each in its own, draggable slide.

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.112496285e+9, 1.388297496e+9;
    String axis "T";
    String description "Time of detection from receiver";
    String ioos_category "Time";
    String long_name "Detection 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";
    Float32 actual_range 37.1616, 46.6893;
    String axis "Y";
    String description "Latitude where tagged fish was released";
    String ioos_category "Location";
    String long_name "Latitude Tagged";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -124.02, -121.88;
    String axis "X";
    String description "Longitude where tagged fish was released";
    String ioos_category "Location";
    String long_name "Longitude Tagged";
    String standard_name "longitude";
    String units "degrees_east";
  }
  lat_detect {
    Float32 actual_range 37.8094, 38.0208;
    String description "Detection Latitude";
    String ioos_category "Location";
    String long_name "Latitude";
  }
  lon_detect {
    Float32 actual_range -123.14, -122.46;
    String description "Detection Longitude";
    String ioos_category "Location";
    String long_name "Longitude";
  }
  date_tagged {
    String description "Date tagged fish released";
    String ioos_category "Time";
    String long_name "Date Tagged";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  fish_id {
    String description "Unique identifier for each tagged fish";
    String ioos_category "Identifier";
    String long_name "Fish ID";
  }
  tag_sn {
    String description "Tag serial number as given from manufacturer";
    String ioos_category "Identifier";
    String long_name "Tag SN";
  }
  tag_id {
    Int32 _FillValue 2147483647;
    Int32 actual_range 1054, 63843;
    String description "Tags transmission code";
    String ioos_category "Identifier";
    String long_name "Tag ID";
  }
  codespace {
    String description "The code map scheme for this tag";
    String ioos_category "Identifier";
    String long_name "Codespace";
  }
  species {
    String description "common name of tagged fish";
    String ioos_category "Identifier";
    String long_name "Common name";
  }
  fish_type {
    String description "Grouping ID that further describes fish's origin, run, and collection site";
    String ioos_category "Identifier";
    String long_name "Fish Type";
  }
  agency {
    String description "Agency that performed the tagging";
    String ioos_category "Identifier";
    String long_name "Agency";
  }
  study_id {
    String description "Name of study that tagged fish";
    String ioos_category "Identifier";
    String long_name "Study ID";
  }
  weight {
    String description "Weight of fish tagged in air, if blank no weight taken";
    String ioos_category "Other";
    String long_name "Weight";
    String units "grams";
  }
  length {
    Int32 _FillValue 2147483647;
    String description "Length of the fish tagged in millimeters";
    String ioos_category "Other";
    String long_name "Length";
    String units "mm";
  }
  length_type {
    String description "FL = fork length, TL = total length, SL = standard length";
    String ioos_category "Identifier";
    String long_name "Length Type";
  }
  date_released {
    String description "Date Released";
    String ioos_category "Time";
    String long_name "Date Released";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  release_location {
    String description "Name of Release Location";
    String ioos_category "Identifier";
    String long_name "Release Location";
  }
  river_km {
    Int32 _FillValue 2147483647;
    Int32 actual_range -114, 534;
    String description "River kilometer of release location, rkm 0 = Golden Gate Bridge";
    String ioos_category "Other";
    String long_name "River kilometer of release location";
    String units "km";
  }
  sex {
    String description "Sex";
    String ioos_category "Identifier";
    String long_name "Sex";
  }
  life_stage {
    String description "Life State";
    String ioos_category "Identifier";
    String long_name "Life Stage";
  }
  ad_clip {
    String description "Yes = adipose fin clipped off. Applies only to salmonids";
    String ioos_category "Identifier";
    String long_name "adipose fin clipped";
  }
  tag_type {
    String description "Model of tag that describes its size and code scheme, see Vemco website";
    String ioos_category "Identifier";
    String long_name "Tag Model Type";
  }
  notes {
    String description "Notes about fish's condition, surgery conditions, or other external tags used";
    String ioos_category "Identifier";
    String long_name "Notes";
  }
  vr2sn {
    String description "Vemco Receiver serial number";
    String ioos_category "Identifier";
    String long_name "Vemco Receiver serial number";
  }
  location {
    String description "Name of location where receiver detected fish";
    String ioos_category "Identifier";
    String long_name "Detect Location";
  }
  general_detect_location {
    String description "Name of location with one or more recievers considered as a single location";
    String ioos_category "Identifier";
    String long_name "General Detection Location";
  }
 }
  NC_GLOBAL {
    String acknowledgment "National Oceanic and Atmospheric Administration, Southwest Fisheries Science Center";
    String cdm_data_type "Point";
    String contributor_name "Fisheries Ecology Division";
    String Conventions "CF-1.6, ACDD-1.3, COARDS, NCCSV-1.1";
    String creator_email "Lynn.DeWitt@noaa.gov";
    String creator_url "https://swfsc.noaa.gov/FED/";
    String date_created "2015-01-19";
    String date_issued "2015-02-26";
    String date_modified "2015-01-19";
    String defaultGraphQuery "longitude,latitude,lat_detect&.draw=markers&.marker=5|5&.color=0x000000&.colorBar=|D||||2";
    Float64 Easternmost_Easting -121.88;
    String featureType "Point";
    Float64 geospatial_lat_max 46.6893;
    Float64 geospatial_lat_min 37.1616;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -121.88;
    Float64 geospatial_lon_min -124.02;
    String geospatial_lon_units "degrees_east";
    String history 
"2024-05-03T18:48:27Z (source database)
2024-05-03T18:48:27Z http://upwell.pfeg.noaa.gov/tabledap/FEDAc_Salmon.das";
    String infoUrl "https://swfsc.noaa.gov/textblock.aspx?Division=FED&ParentMenuId=54&id=19450/";
    String institution "NOAA-Fisheries/Southwest Fisheries Science Center";
    String keywords "acoustic, chinook, detections, green sturgeon, Oceans, Salmon, tag, tagging";
    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 46.6893;
    String project "Golden Gate and Pt. Reyes Acoustic Detections";
    String publisher_email "arnold.ammann@noaa.gov";
    String publisher_name "Arnold Ammann";
    String sourceUrl "(source database)";
    Float64 Southernmost_Northing 37.1616;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String subsetVariables "tag_id,fish_id, time, latitude, longitude,tag_sn,species,fish_type,agency,study_id,length_type,release_location,river_km,sex,life_stage,tag_type,general_detect_location";
    String summary "This dataset contains detections of acoustic tagged fish from two general locations: Golden Gate (east and west line) and Pt. Reyes. Several Vemco 69khz acoustic receivers were deployed at each of these general locations. The Golden Gate receivers were deployed beginning in April 2005 while the Pt Reyes receivers were deployed beginning in July 2008. The tagged fish in the dataset include all fish tagged by NOAA Santa Cruz and some green sturgeon tagged by NOAA in the Columbia River and Willapa Bay. Only a subset of these tagged fish were detected at the Golden Gate and Pt. Reyes. There are detections of many more fish that are not in the list of tagged fish in this dataset.";
    String time_coverage_end "2013-12-29T06:11:36Z";
    String time_coverage_start "2005-04-03T02:44:45Z";
    String title "Golden Gate and Pt. Reyes Acoustic Detections";
    Float64 Westernmost_Easting -124.02;
  }
}

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://upwell.pfeg.noaa.gov/erddap/tabledap/datasetID.fileType{?query}
For example,
https://upwell.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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