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Dataset Title:  St. John's Buoy Subscribe RSS
Institution:  MI   (Dataset ID: SMA_st_johns)
Range: longitude = -52.630577 to -52.630577°E, latitude = 47.56716 to 47.56716°N, time = 2013-07-10T17:53:01Z to 2022-08-20T04:30:01Z
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background | 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 {
  station_name {
    String _Encoding "UTF-8";
    String cf_role "timeseries_id";
    String ioos_category "Identifier";
    String long_name "Station Name";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.373478781e+9, 1.660969801e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Timestamp";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 actual_range -52.63057833333333, -52.63057833333333;
    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 47.56716, 47.56716;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  precise_lon {
    Float64 actual_range -54.86781333, -45.11410333;
    String ioos_category "Location";
    String long_name "Precise Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  precise_lat {
    Float64 actual_range 35.76485667, 50.91543833;
    String ioos_category "Location";
    String long_name "Precise Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  wind_spd_avg {
    Float32 actual_range 0.2, 58.0;
    String ioos_category "Wind";
    String long_name "Wind Speed Average";
    String standard_name "wind_speed";
    String units "m s-1";
  }
  wind_spd_max {
    Float32 actual_range 0.5, 79.5;
    String ioos_category "Wind";
    String long_name "Wind Speed Max";
    String standard_name "wind_speed_of_gust";
    String units "m s-1";
  }
  wind_dir_avg {
    Int16 actual_range 0, 360;
    Float64 colorBarMaximum 360.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Wind";
    String long_name "Wind From Direction";
    String standard_name "wind_from_direction";
    String units "degree";
  }
  wind_spd2_avg {
    Float32 actual_range 0.0, 427.3;
    String ioos_category "Wind";
    String long_name "Wind Speed Average 2";
    String units "m s-1";
  }
  wind_spd2_max {
    Float32 actual_range 0.0, 1946.7;
    String ioos_category "Wind";
    String long_name "Wind Speed Max 2";
    String standard_name "wind_speed_of_gust";
    String units "m s-1";
  }
  wind_dir2_avg {
    Int16 actual_range 0, 360;
    Float64 colorBarMaximum 360.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Wind";
    String long_name "Wind From Direction 2";
    String standard_name "wind_from_direction";
    String units "degree";
  }
  air_temp_avg {
    Float32 actual_range -45.0, 61.7;
    String ioos_category "Temperature";
    String long_name "Air Temp Avg";
    String standard_name "air_temperature";
    String units "degree_C";
  }
  air_pressure_avg {
    Float32 actual_range 962.95, 1049.84;
    Float64 colorBarMaximum 1050.0;
    Float64 colorBarMinimum 950.0;
    String ioos_category "Pressure";
    String long_name "Air Pressure";
    String standard_name "air_pressure";
    String units "mbar";
  }
  air_humidity_avg {
    Float32 actual_range 1.5, 110.0;
    String ioos_category "Meteorology";
    String long_name "Air Humidity Avg";
    String standard_name "relative_humidity";
    String units "1";
  }
  air_dewpoint_avg {
    Float32 actual_range -76.0, 35.9;
    String ioos_category "Meteorology";
    String long_name "Air Dewpoint Avg";
    String standard_name "dew_point_temperature";
    String units "degree_C";
  }
  surface_temp_avg {
    Float32 actual_range -6.98, 34.97;
    String ioos_category "Temperature";
    String long_name "Surface Temp Avg";
    String standard_name "sea_surface_temperature";
    String units "degree_C";
  }
  wave_ht_max {
    Float32 actual_range 0.0, 26.15;
    String ioos_category "Surface Waves";
    String long_name "Wave Ht Max";
    String standard_name "sea_surface_wave_maximum_height";
    String units "m";
  }
  wave_ht_sig {
    Float32 actual_range 0.0, 14.39;
    String ioos_category "Surface Waves";
    String long_name "Wave Ht Sig";
    String standard_name "sea_surface_wave_significant_height";
    String units "m";
  }
  wave_period_max {
    Float32 actual_range 2.3, 33.3;
    Float64 colorBarMaximum 20.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Surface Waves";
    String long_name "Sea Surface Wave Maximum Period";
    String standard_name "sea_surface_wave_maximum_period";
    String units "s";
  }
  wave_dir_avg {
    Int16 actual_range 0, 360;
    Float64 colorBarMaximum 360.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Surface Waves";
    String long_name "Sea Surface Wave From Direction";
    String standard_name "sea_surface_wave_from_direction";
    String units "degree";
  }
  wave_spread_avg {
    String _Unsigned "false";
    Byte actual_range 18, 79;
    String ioos_category "Surface Waves";
    String long_name "Wave Spread Avg";
    String standard_name "sea_surface_wave_directional_spread";
    String units "degree";
  }
  curr_dir_avg {
    Float32 actual_range 0.0, 360.0;
    String ioos_category "Currents";
    String long_name "Curr Dir Avg";
    String standard_name "sea_water_velocity_to_direction";
    String units "degree";
  }
  curr_spd_avg {
    Float32 actual_range 0.0, 3091.0;
    String ioos_category "Currents";
    String long_name "Curr Spd Avg";
    String standard_name "sea_water_speed";
    String units "mm s-1";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "station_name,longitude,latitude";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_email "SmartBay@smartbay.ca";
    String creator_name "Marine Institute";
    String creator_url "https://www.mi.mun.ca/departments/centreforappliedoceantechnology/";
    Float64 Easternmost_Easting -52.63057833333333;
    String featureType "TimeSeries";
    Float64 geospatial_lat_max 47.56716;
    Float64 geospatial_lat_min 47.56716;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -52.63057833333333;
    Float64 geospatial_lon_min -52.63057833333333;
    String geospatial_lon_units "degrees_east";
    String history 
"2022-08-20T04:55:20Z (local files)
2022-08-20T04:55:20Z https://www.smartatlantic.ca/tabledap/SMA_st_johns.das";
    String infoUrl "https://www.smartatlantic.ca/station_alt.html?id=stjohns";
    String institution "MI";
    String instrument_10_description "Light";
    String instrument_10_id "1560004849";
    String instrument_10_manufacturer "Carmanah";
    String instrument_10_type "Miscellaneous";
    String instrument_10_version "M850";
    String instrument_11_description "Mooring";
    String instrument_11_id "Mooring-435";
    String instrument_11_manufacturer "Inverse Canteary";
    String instrument_11_type "Mooring";
    String instrument_11_version "nan";
    String instrument_12_description "Radar Reflector";
    String instrument_12_id "Radar Reflector-439";
    String instrument_12_manufacturer "EchoMax";
    String instrument_12_type "Miscellaneous";
    String instrument_12_version "EM230";
    String instrument_13_description "Telemetry";
    String instrument_13_id "ACZ1100000241676";
    String instrument_13_manufacturer "B&B SmartWorx";
    String instrument_13_type "Equipment";
    String instrument_13_version "SR30500320-SWH";
    String instrument_14_description "Temperature/Rel. Humid.";
    String instrument_14_id "61631977";
    String instrument_14_manufacturer "Rotronic";
    String instrument_14_type "Sensor";
    String instrument_14_version "MP101A-T7";
    String instrument_15_description "Wave Sensor";
    String instrument_15_id "TAS03150";
    String instrument_15_manufacturer "AXYS";
    String instrument_15_type "Sensor";
    String instrument_15_version "Tri-AXYS";
    String instrument_16_description "Wind Generator";
    String instrument_16_id "GALETU020B12VSN4327";
    String instrument_16_manufacturer "Leading Edge";
    String instrument_16_type "Miscellaneous";
    String instrument_16_version "LE-V50-EX";
    String instrument_1_description "Anemometer";
    String instrument_1_id "14520030";
    String instrument_1_manufacturer "Gill";
    String instrument_1_type "Sensor";
    String instrument_1_version "Windsonic";
    String instrument_2_description "Anemometer";
    String instrument_2_id "09030012";
    String instrument_2_manufacturer "Gill";
    String instrument_2_type "Sensor";
    String instrument_2_version "Windsonic";
    String instrument_3_description "AtoN AIS";
    String instrument_3_id "000885399";
    String instrument_3_manufacturer "L3";
    String instrument_3_type "Equipment";
    String instrument_3_version "MFR 06141";
    String instrument_4_description "Barometric Pressure";
    String instrument_4_id "F4520055";
    String instrument_4_manufacturer "Visala";
    String instrument_4_type "Sensor";
    String instrument_4_version "PTB 110";
    String instrument_5_description "Compass";
    String instrument_5_id "120502259";
    String instrument_5_manufacturer "KVH";
    String instrument_5_type "Equipment";
    String instrument_5_version "C100";
    String instrument_6_description "Current Meter";
    String instrument_6_id "AQD8314";
    String instrument_6_manufacturer "NORTEK Aquadopp";
    String instrument_6_type "Sensor";
    String instrument_6_version "Current Profiler";
    String instrument_7_description "Data Logger";
    String instrument_7_id "WM503440";
    String instrument_7_manufacturer "AXYS WatchMan";
    String instrument_7_type "Equipment";
    String instrument_7_version "WM500";
    String instrument_8_description "GPS";
    String instrument_8_id "GPS-429";
    String instrument_8_manufacturer "Garmin";
    String instrument_8_type "Equipment";
    String instrument_8_version "GP-30";
    String instrument_9_description "GPS";
    String instrument_9_id "2J5059603";
    String instrument_9_manufacturer "Garmin";
    String instrument_9_type "Sensor";
    String instrument_9_version "GPS 19x HVS";
    String keywords "air, air_dewpoint_avg, air_humidity_avg, air_pressure, air_pressure_avg, air_temp_avg, atmosphere, atmospheric, average, curr, curr_dir_avg, curr_spd_avg, currents, data, dew, dew point, dewpoint, dir, direction, Earth Science > Atmosphere > Atmospheric Pressure > Atmospheric Pressure Measurements, Earth Science > Atmosphere > Atmospheric Pressure > Sea Level Pressure, Earth Science > Atmosphere > Atmospheric Pressure > Static Pressure, Earth Science > Atmosphere > Atmospheric Winds > Surface Winds, Earth Science > Oceans > Ocean Waves > Swells, Earth Science > Oceans > Ocean Waves > Wave Period, Earth Science > Oceans > Ocean Waves > Wave Speed/Direction, humidity, identifier, institute, level, marine, max, measurements, meteorology, name, ocean, oceans, period, point, pressure, sea, sea_surface_swell_wave_period, sea_surface_wave_to_direction, seaSurfaceHeight, seaSurfaceTemperature, sig, spd, speed, spread, st., static, station, station_name, surface, surface waves, surface_temp_avg, surfaceCurrents, swell, swells, temperature, time, timestamp, wave, wave_dir_avg, wave_ht_max, wave_ht_sig, wave_period_max, wave_spread_avg, waves, wind, wind_dir_avg, wind_from_direction, wind_spd_avg, wind_spd_max, winds";
    String keywords_fra "surfaceCurrents, seaSurfaceHeight, seaSurfaceTemperature";
    String keywords_vocabulary "GCMD Science Keywords";
    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.";
    String maintenance_history 
"2018-03-31: Buoy Purchased fro AXYS - Used Hull Purchased from AXYS Technologies complete with six solar panels, 2 StarDot Cameras,, Charge Controller, Batteries and Wind Power Generator
\t\t2018-07-17: Buoy build and readiness in yard - Buoy hull assembled, datalogger transferred from WKB0971, sensors, cameras and other systems installed. Currently running burnin process.
\t\t2018-08-27: Buoy Deployed - Buoy Deployed at approximately 19:00 hrs UTC on location
\t\tby the MI Inquisitor in approximately 130 metres of water.
\t\t2018-08-28: TriAXYS Wave Sensor failure/replacement - Wave sensor that was originally deployed on the buoy failed and has been replaced by another sensor.
\t\t2019-02-16: Buoy lifted for 2019 Winter season - Buoy has been lifted for the 2019 Winter Season, data script has been turned off and website updated to indicate the the buoy has been lifted. Buoy was lifted by the CCGS George R Pearkes.
\t\t2019-06-14: Burn-In Process Started - Start of Burnin for 2019 Season - no sensors changed. Only Camera 2 was removed
\t\t2019-07-02: New Temp/RH Sensor installed - New Temp/RH Sensor installed before deployment.
\t\t2019-07-04: Buoy Deployed - Buoy deployed for the 2019 Season.

\t\tReporting well all sensors intact. Camera reporting but script needs to be updated in order to display on site.
\t\t2020-08-10: Sampling Schema - Sampling Schema reprogrammed to every 30 minutes.
\t\t2020-09-28: Buoy Service Trip - Service trip, replaced cell antenna, previous one damaged. Replaced MP101A-T7 Temp/RH sensor
\t\t2022-03-04: Buoy Recovered and at CTec Yard - Buoy has been recovered and is currently in the CTec yard. This is because of the impending ice pack coming down the north east coast of Newfoundland... Buoy will likely be redeployed in May 2022
\t\t2022-05-02: Buoy maintenance - ongoing - Buoy has undergone maintenance since being recovered. All anodes replaced. Wind generator has been replaced. Wind 1 sensor has been repaired. Camera have been removed due to water ingress. Cell modem has been reprogrammed to accept remote access again. Mooring(synthetic section) has been checked and recertified. Buoy undergoing burn in before redeployment.
\t\t2022-06-01: Housing changed - Housing changed to use pole housing from Serial No. 14080059 that stopped working.
\t\t2022-06-08: Burn in complete - ready for deployment - Buoy burnin complete all anodes checked and/or replaced. New mooring diagram updated to reflect all hammer locks replaced with 1.5\" SPS.";
    Float64 Northernmost_Northing 47.56716;
    String platform "moored surface buoy";
    String platform_description "AXYS 3 Metre Buoy";
    String platform_id "3MB00380";
    String platform_vocabulary "https://vocab.nerc.ac.uk/collection/L06/current/";
    String project "SmartAtlantic";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 47.56716;
    String standard_name_vocabulary "CF Standard Name Table v78";
    String summary "A 3 metre diameter meteorological/oceanographic buoy built by AXYS Environmental Technologies of Sidney, British Columbia. The buoy is located in St. John's Bay just north of Cape Spear at the approaches to St. John's Harbour in about 160 m. water depth. The buoy's purpose is to monitor and transmit in near real time meteorological and oceanographic data in support of operational efficiency, safety and situational awareness for marine transportation. The buoy also provides a continuous data feed in support of the Science and R&D community.The buoy is capable of measuring a variety of atmospheric and surface conditions including: wind speed and direction, air temperature, humidity, dew point, barometric pressure, water temperature, current speed and direction (0.5 m. depth), wave height, direction and period as well as wave spectral information. The buoy is also equipped with an Aids to Navigation Information System (ATONiS) allowing direct transmittal of the buoy data to a ship's bridge.";
    String summary_fra "Une bouée météorologique/océanographique de 3 mètres de diamètre construite par AXYS Environmental Technologies de Sidney, en Colombie-Britannique. La bouée est située dans la baie Saint-Jean, juste au nord du cap Spear, aux abords du port de Saint-Jean, à environ 160 m. de profondeur d'eau. L'objectif de la bouée est de surveiller et de transmettre en temps quasi réel les données météorologiques et océanographiques à l'appui de l'efficacité opérationnelle, de la sécurité et de la connaissance de la situation pour le transport maritime. La bouée fournit également un flux continu de données à l'appui de la communauté des sciences et de la R-D. La bouée est capable de mesurer diverses conditions atmosphériques et de surface, y compris la vitesse et la direction du vent, la température de l'air, l'humidité, le point de rosée, la pression barométrique, la température de l'eau, la vitesse et la direction du courant (0,5 m de profondeur), la hauteur, la direction et la période des vagues ainsi que l'information spectrale des vagues. La bouée est également munie d'un système d'information sur les aides à la navigation (AtonIS) qui permet la transmission directe des données de la bouée à la passerelle d'un navire.";
    String testOutOfDate "now-120minutes";
    String time_coverage_end "2022-08-20T04:30:01Z";
    String time_coverage_start "2013-07-10T17:53:01Z";
    String title "St. John's Buoy";
    String title_fra "Bouée de St. John's";
    String uuid "92fdac9b-91b7-48f0-8afd-5d9d1b24db90";
    Float64 Westernmost_Easting -52.63057833333333;
  }
}

 

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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