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Dataset Title:  Drifter Trials in St. John Harbour (2020-2022) | Lancement de bouées
dérivantes dans le port de St. John (2020-2022)
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Institution:  Fundy North Fishermen's Association   (Dataset ID: unbDrifterStJohnHarbour)
Range: longitude = -66.95086 to -65.28579°E, latitude = 44.52872 to 45.39967°N, altitude = -102.99 to 8645.01m, time = 2020-08-10T11:10:53Z to 2022-12-02T13:58:47Z
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 {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.597057853e+9, 1.669989527e+9;
    String axis "T";
    String datatype "string";
    String ioos_category "Time";
    String long_name "Sampling Date";
    String source_name "date";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  measurementID {
    String description "Unique identifiers for each measurement event";
    String long_name "Measurement ID";
    String name "measurement_ID";
  }
  address {
    String long_name "Address";
    String name "address";
  }
  speed_mph {
    Float32 _FillValue 1.0e+36;
    Float32 actual_range 0.0, 90.14;
    String long_name "Drifter Speed in mph";
    String name "speed_mph";
    String units "mph";
  }
  speed_m_s_1 {
    Float32 _FillValue 1.0e+36;
    Float32 actual_range 0.0, 40.3;
    String long_name "Drifter Speed in m s-1";
    String name "speed_m.s-1";
    String units "m s-1";
  }
  altitude_ft {
    Float32 _FillValue 1.0e+36;
    Float32 actual_range -337.9, 28362.9;
    String long_name "Drifter Altitude in ft";
    Float32 missing_value NaN;
    String name "altitude_ft";
    String source_name "altitude_ft";
    String units "ft";
  }
  altitude {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "up";
    Float32 _FillValue 1.0e+36;
    Float32 actual_range -102.99, 8645.01;
    String axis "Z";
    String ioos_category "Location";
    String long_name "Drifter Altitude in m";
    Float32 missing_value NaN;
    String name "altitude_m";
    String positive "up";
    String standard_name "altitude";
    String units "m";
  }
  drifter_Type {
    String description "The type of Drifter that is use (Long drifter or Disk Drifter)";
    String long_name "Drifter Type";
    String name "drifter_Type";
  }
  retrieved {
    String description "Have the drifters been retrieved (Yes or No)";
    String long_name "Retrieved";
    String name "retrieved";
  }
  deltaT_ft {
    Float32 _FillValue 3.048e+35;
    Float32 actual_range 0.0, 8210452.5;
    String description "Is the distance in feet that the drifter travelled between pings.";
    String long_name "DeltaT in feet";
    Float32 missing_value NaN;
    String name "deltaT_ft";
    String units "ft";
  }
  deltaT {
    Float32 _FillValue 1.0e+36;
    Float32 actual_range 0.0, 8210454.0;
    String description "Is the distance in meter that the drifter travelled between pings.";
    String long_name "DeltaT in meter";
    Float32 missing_value NaN;
    String name "deltaT";
    String units "m";
  }
  max_Distance_Differences {
    Float32 _FillValue 1.0e+36;
    Float32 actual_range 0.0, 1.0;
    Float64 colorBarMaximum 10.0;
    Float64 colorBarMinimum -10.0;
    String description "The Maximum Distance Difference of Delta t";
    String long_name "Maximum Distance Difference";
    Float32 missing_value NaN;
    String name "max_Distance_Differences";
  }
  min_Distance_Differences {
    Float32 _FillValue 1.0e+36;
    Float32 actual_range 0.0, 1.0;
    Float64 colorBarMaximum 10.0;
    Float64 colorBarMinimum -10.0;
    String description "The Minimum Distance Difference of Delta t";
    String long_name "Minimum Distance Difference";
    Float32 missing_value NaN;
    String name "min_Distance_Differences";
  }
  latitude_DMS {
    String long_name "Degrees Minutes Seconds Latitude";
    String name "latitude_DMS";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude_DMS {
    String long_name "Degrees Minutes Seconds Longitude";
    String name "longitude_DMS";
    String standard_name "longitude";
    String units "degrees_east";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 _FillValue 1.0e+36;
    Float32 actual_range 44.52872, 45.39967;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "Latitude";
    String name "latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 _FillValue 1.0e+36;
    Float32 actual_range -66.95086, -65.28579;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "Longitude";
    String name "longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  outlier {
    String description "Notes about any changes in Delta T that looked unordinary based on the distance we expect the tide and wind would move the unit in 5 minutes (for example, if a drifter moved very far within a ping window may indicate it was hooked by a boat)";
    String long_name "Outlier";
    String name "outlier";
  }
  tide_Conditions {
    String description "Current state of the tide at the time the values are collected";
    String long_name "Tide Conditions";
    String name "tide_Conditions";
  }
  tide_Height_ft {
    Float32 _FillValue 3.048e+35;
    Float32 actual_range -0.21336, 8.80872;
    Float64 colorBarMaximum 2.0;
    Float64 colorBarMinimum -2.0;
    String long_name "Tide Height in ft";
    Float32 missing_value NaN;
    String name "tide_Height_ft";
    String standard_name "sea_surface_height";
    String units "ft";
  }
  sea_surface_height_amplitude_due_to_earth_tide {
    Float32 _FillValue 1.0e+36;
    Float32 actual_range -0.21, 8.81;
    String ioos_category "Sea Level";
    String long_name "Tide Height in m";
    Float32 missing_value NaN;
    String name "sea_surface_height_amplitude_due_to_earth_tide";
    String standard_name "sea_surface_height_amplitude_due_to_earth_tide";
    String units "m";
  }
  wind_Direction_10s_Degrees {
    Float32 _FillValue 1.0e+36;
    Float32 actual_range 0.0, 36.0;
    Float64 colorBarMaximum 360.0;
    Float64 colorBarMinimum 0.0;
    String long_name "Wind From Direction";
    String name "wind_Direction_10s_Degrees";
    String standard_name "wind_from_direction";
    String units "degrees";
  }
  wind_Direction_Compass {
    String long_name "Wind Direction";
    String name "wind_Direction_Compass";
  }
  wind_speed_kmh {
    Float32 _FillValue 1.0e+36;
    Float32 actual_range 0.0, 59.0;
    Float64 colorBarMaximum 15.0;
    Float64 colorBarMinimum 0.0;
    String long_name "Wind Speed in km/h";
    String name "wind_speed_kmh";
    String standard_name "wind_speed";
    String units "km/h";
  }
  wind_speed_m_s_1 {
    Float32 _FillValue 1.0e+36;
    Float32 actual_range 0.0, 16.39;
    Float64 colorBarMaximum 15.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Wind";
    String long_name "Wind speed in m s-1";
    String name "wind_speed_m.s-1";
    String standard_name "wind_speed";
    String units "m s-1";
  }
  field_Comments {
    String long_name "Field Comments";
    String name "field_Comments";
  }
  events {
    String description "Events description";
    String long_name "Events";
    String name "events";
  }
  instrumentID {
    String cf_role "timeseries_id";
    String description "Identifiant unique de l'instrument utilisé";
    String long_name "Instrument ID";
    String name "instrumentID";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "instrumentID, drifter_Type";
    String contributor_affiliation "University of New-Brunswick, Fundy North Fishermen’s Association | Université du Nouveau-Brunswick, Association Fundy North Fishermen";
    String contributor_email "\"stefani.giacomelli@unb.ca\"";
    String contributor_name "Stefani Giacomelli";
    String Conventions "COARDS, CF-1.10, ACDD-1.3";
    String creator_name "Fundy North Fishermen's Association";
    String dataset_status "completed";
    String defaultGraphQuery "&time>=max(time)-7days&time<=max(time)&.marker=11|5";
    Float64 Easternmost_Easting -65.28579;
    String featureType "TimeSeries";
    String format_version "v1";
    Float64 geospatial_lat_max 45.39967;
    Float64 geospatial_lat_min 44.52872;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -65.28579;
    Float64 geospatial_lon_min -66.95086;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 8645.01;
    Float64 geospatial_vertical_min -102.99;
    String geospatial_vertical_positive "up";
    String geospatial_vertical_units "m";
    String history 
"SLGO submitted the drifter data to some transformations to make them homogeneous and to be able to integrate them into ERDDAP / netcdf file generated on 2024-01-04 from a csv with the custom SLGO app CFCM.
2024-03-05T03:11:23Z (local files)
2024-03-05T03:11:23Z https://erddap.ogsl.ca/tabledap/unbDrifterStJohnHarbour.das";
    String infoUrl "https://catalogue.ogsl.ca/dataset/ca-cioos_6360fffd-4f83-4e59-abf6-bea28464afbc";
    String institution "Fundy North Fishermen's Association";
    String instrument_id "Several identifiers that are contained in each data files | Plusieurs identifiants qui sont contenus dans chaque fichier de données";
    String instruments "Disk Drifter, Long Drifter";
    String key_variables "Sea surface height,Surface currents,Ocean surface stress";
    String keywords "sea currents, tide, wind";
    String keywords_fr "courants de surface, marée, vents";
    String keywords_vocabulary "GCMD Science Keywords";
    String license "Creative Commons Attribution 4.0 International licence (CC-BY 4.0) | Licence internationale Creative Commons Attribution 4.0 CC-BY 4.0";
    String licenseUrl "https://creativecommons.org/licenses/by/4.0/";
    Float64 Northernmost_Northing 45.39967;
    String platform "drifting surface float";
    String platform_id "https://vocab.nerc.ac.uk/collection/L06/current/42/";
    String principal_investigator_affiliation "Fundy North Fishermen’s Association";
    String principal_investigator_email "\"lillian@fundynorth.org\"";
    String principal_investigator_name "Lillian Mitchell";
    String product_version "v1";
    String project "Coastal Environmental Baseline Data Program | Programme sur les données environnementales côtières de référence";
    String published_date "2023-03-22";
    String publisher "St. Lawrence Global Observatory | Observatoire global du Saint-Laurent";
    String publisher_identifier "https://ror.org/03wfagk22";
    String related_datasets "upcoming";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 44.52872;
    String standard_name_nerc_vocabulary "The NERC Vocabulary Server (NVS).";
    String standard_name_vocabulary "CF Standard Name Table v79";
    String subsetVariables "drifter_Type, instrumentID";
    String summary "Drifter release was initiated at the boundary of the Canaport Exclusion Zone in St. John Harbour. Two types of drifters were deployed to track the course of surface currents from Saint John Harbour; long and disk drifters were used to capture the relative influences of wind and current. Different launches were carried out from 2020 to 2022. This project was funded by Department of Fisheries and Oceans (DFO) Coastal Environmental Baseline Program under Canada's Oceans Protection Plan (OPP).";
    String summary_fr "La libération des bouées dérivantes a été amorcée à la limite de la zone d'exclusion de Canaport dans le port de Saint-Jean Deux types de bouées dérivantes ont été déployées pour suivre le cours des courants de surface à partir du port de Saint John ; les dérivateurs longs et à disque ont été utilisés pour capter les influences relatives du vent et du courant. Différents lancement ont été effectués de 2020 à 2022. Ce projet a été financé par le Programme sur les données environnementales côtières de référence dans le cadre du Plan de protection des océans (PPO).";
    String time_coverage_end "2022-12-02T13:58:47Z";
    String time_coverage_start "2020-08-10T11:10:53Z";
    String title "Drifter Trials in St. John Harbour (2020-2022) | Lancement de bouées dérivantes dans le port de St. John (2020-2022)";
    String update_frequency "asNeeded";
    Float64 Westernmost_Easting -66.95086;
  }
}

 

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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