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Dataset Title:	AVOS Meteorological Data collected by the CCGS Amundsen in the Canadian Arctic
Institution:	Canadian Cryospheric Information Network (Dataset ID: ARICE_Amundsen_AVOS_v1)
Range:	longitude = -172.564 to 0.0°E, latitude = 0.0 to 81.401°N, time = 2004-06-25T17:35:00Z to 2017-10-12T11:30:00Z
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:

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 {
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 _FillValue 9.969209968386869e+36;
    Float64 actual_range 0.0, 81.401;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String latitude_reference_datum "geographical coordinates, WGS84 projection";
    String long_name "Latitude";
    String pippo "pluto";
    String standard_name "latitude";
    String units "degrees_north";
    Float64 valid_max 90.0;
    Float64 valid_min -90.0;
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 _FillValue 9.969209968386869e+36;
    Float64 actual_range -172.564, 0.0;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String latitude_reference_datum "geographical coordinates, WGS84 projection";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
    Float64 valid_max 180.0;
    Float64 valid_min -180.0;
  }
  WDIR {
    Float64 _FillValue 9.969209968386869e+36;
    Float64 actual_range 0.0, 360.0;
    Float64 colorBarMaximum 360.0;
    Float64 colorBarMinimum 0.0;
    String ep_parameter_group "Winds";
    String long_name "wind from direction relative true north";
    String SDN "SDN:P01::EWDAZZ01";
    String source_variable_name "WDIR";
    String standard_name "wind_from_direction";
    String units "degree";
  }
  WSPD {
    Float64 _FillValue 9.969209968386869e+36;
    Float64 actual_range 0.0, 24.178868;
    Float64 colorBarMaximum 15.0;
    Float64 colorBarMinimum 0.0;
    String ep_parameter_group "Winds";
    String long_name "horizontal wind speed";
    String SDN "SDN:P01::EWSBZZ01";
    String source_variable_name "WSPD";
    String standard_name "wind_speed";
    String units "m/s";
  }
  DRYT {
    Float64 _FillValue 9.969209968386869e+36;
    Float64 actual_range -30.0, 28.5;
    Float64 colorBarMaximum 40.0;
    Float64 colorBarMinimum -10.0;
    String ep_parameter_group "Atmospheric";
    String long_name "air temperature in dry bulb";
    String SDN "SDN:P01::CTMPZZ01";
    String source_variable_name "DRYT";
    String standard_name "air_temperature";
    String units "degree_Celsius";
  }
  DEWT {
    Float64 _FillValue 9.969209968386869e+36;
    Float64 actual_range -30.0, 21.0;
    Float64 colorBarMaximum 40.0;
    Float64 colorBarMinimum 0.0;
    String ep_parameter_group "Water conductivity/ BioGeoChemical";
    String long_name "dew point temperature";
    String SDN "SDN:P01::CDEWZZ01";
    String source_variable_name "DEWT";
    String standard_name "dew_point_temperature";
    String units "degree_Celsius";
  }
  ATMS {
    Float64 _FillValue 9.969209968386869e+36;
    Float64 actual_range 0.0, 1049.1;
    Float64 colorBarMaximum 1050.0;
    Float64 colorBarMinimum 950.0;
    String ep_parameter_group "Atmospheric";
    String long_name "atmospheric pressure at sea level";
    String SDN "SDN:P01::CAPAZZ01";
    String source_variable_name "ATMS";
    String standard_name "air_pressure_at_sea_level";
    String units "hPa";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.0881849e+9, 1.5078078e+9;
    String axis "T";
    String calendar "Gregorian";
    String ioos_category "Time";
    String long_name "Valid Time GMT";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  WDIR_QC {
    Int16 _FillValue -32767;
    Int16 actual_range 0, 0;
    Float64 colorBarMaximum 150.0;
    Float64 colorBarMinimum 0.0;
    String flag_meaning "no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed not_used nominal_value interpolated_value missing_value";
    String long_name "WDIR quality flag";
    Int32 units 1;
  }
  WSPD_QC {
    Int16 _FillValue -32767;
    Int16 actual_range 0, 0;
    Float64 colorBarMaximum 150.0;
    Float64 colorBarMinimum 0.0;
    String flag_meaning "no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed not_used nominal_value interpolated_value missing_value";
    String long_name "WSPD quality flag";
    Int32 units 1;
  }
  DRYT_QC {
    Int16 _FillValue -32767;
    Int16 actual_range 0, 0;
    Float64 colorBarMaximum 150.0;
    Float64 colorBarMinimum 0.0;
    String flag_meaning "no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed not_used nominal_value interpolated_value missing_value";
    String long_name "DRYT quality flag";
    Int32 units 1;
  }
  DEWT_QC {
    Int16 _FillValue -32767;
    Int16 actual_range 0, 0;
    Float64 colorBarMaximum 150.0;
    Float64 colorBarMinimum 0.0;
    String flag_meaning "no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed not_used nominal_value interpolated_value missing_value";
    String long_name "DEWT quality flag";
    Int32 units 1;
  }
  ATMS_QC {
    Int16 _FillValue -32767;
    Int16 actual_range 0, 0;
    Float64 colorBarMaximum 150.0;
    Float64 colorBarMinimum 0.0;
    String flag_meaning "no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed not_used nominal_value interpolated_value missing_value";
    String long_name "ATMS quality flag";
    Int32 units 1;
  }
 }
  NC_GLOBAL {
    String Airtemp "Air temperature [deg C]";
    String cdm_data_type "Point";
    String contact "pdc@uwaterloo.ca";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String Cruise_Number "Amundsen_2017004";
    String Date "Acquisition date [yyyy/mm/dd]";
    String Dewpoint "Dew point [deg C]";
    Float64 Easternmost_Easting 0.0;
    String featureType "Point";
    String Final_Latitude "46.9227";
    String Final_Longitude "-70.9293";
    String geonetwork "https://metadata.arice-h2020.eu/geonetwork/srv/eng/catalog.search#/metadata/6905b1bf-0562-4d22-8963-9c71f3f9bf21";
    Float64 geospatial_lat_max 81.401;
    Float64 geospatial_lat_min 0.0;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 0.0;
    Float64 geospatial_lon_min -172.564;
    String geospatial_lon_units "degrees_east";
    String history 
"2024-04-20T03:10:50Z (local files)
2024-04-20T03:10:50Z https://erddap.emodnet-physics.eu/tabledap/ARICE_Amundsen_AVOS_v1.das";
    String Hour "Acquisition hour [HH:MM:SS]";
    String infoUrl "https://metadata.arice-h2020.eu/geonetwork/srv/eng/catalog.search#/metadata/6905b1bf-0562-4d22-8963-9c71f3f9bf21";
    String Initial_Latitude "58.5666";
    String Initial_Longitude "-68.1292";
    String institution "Canadian Cryospheric Information Network";
    String keywords "air, air_pressure_at_sea_level, air_temperature, atmosphere, atmospheric, atms, ATMS_QC, bulb, data, dew, dew point, dew_point_temperature, dewt, DEWT_QC, direction, dry, dryt, DRYT_QC, earth, 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 Temperature > Air Temperature, Earth Science > Atmosphere > Atmospheric Temperature > Dew Point Temperature, Earth Science > Atmosphere > Atmospheric Temperature > Surface Air Temperature, Earth Science > Atmosphere > Atmospheric Water Vapor > Dew Point Temperature, Earth Science > Atmosphere > Atmospheric Winds > Surface Winds, ett, flag, horizontal, latitude, level, longitude, measurements, north, point, pressure, quality, relative, science, sea, seawater, speed, static, surface, temperature, time, title, true, vapor, water, wdir, WDIR_QC, wind, wind_from_direction, wind_speed, winds, wspd, WSPD_QC";
    String keywords_vocabulary "GCMD Science Keywords";
    String Lat "Latitude [degrees N]";
    String license "Terms of Use of the Polar Data Catalogue: https://www.polardata.ca/pdcinput/public/termsofuse";
    String link "https://www.polardata.ca/pdcsearch/PDC_Metadata_Data_Download.ccin?action=downloadPDCData%26ccin_ref_number=12518%26fileLoc=/pdc/ipy/12518/CCIN12518_20171130_Amundsen_AVOS_v1.zip";
    String Long "Longitude [degrees E]";
    Float64 Northernmost_Northing 81.401;
    String Pressure "Atmospheric pressure (hPa)";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 0.0;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String summary "Environment Canada installed a meteorological system on the Voluntary Observing Ship (VOS) scheme part of the CCGS Amundsen. The system is composed of a Digital Barometer (Vaisala PTB-210), an R.M Anemometer (Young 05103) and a Humidity-Temperature Meteorological sensor (Rotronic MP101). The system continuously recorded Atmospheric pressure, Wind Speed and Direction, Air temperature and Humidity every 4 seconds for the CCGS Amundsen expeditions between 2004 and 2017. No data was collected in 2012 since the vessel was undergoing maintenance (dry docks). The true wind was directly calculated by the system using the ship's gyrocompass, the recorded apparent wind and Global Positioning System (GPS) data (speed and track of the ship from POS-MV and C-NAV Differential Global Navigation Satellite System (DGNSS) Precise Point positioning systems). Then the AVOS system averaged the data at 10 minute or hourly intervals. Outliers and suspicious measurements were removed from the dataset and the resulting controlled data are provided at 10 minute or hourly intervals for each day of the expeditions. Research programs participating in the Amundsen expeditions between 2004 and 2017 include CASES, ArcticNet, CFL, Geotraces, Malina, IOL and BP, BREA, Weston, Netcare, JAMSTEC, Statoil and iBO and GreenEdge.";
    String time_coverage_end "2017-10-12T11:30:00Z";
    String time_coverage_start "2004-06-25T17:35:00Z";
    String title "AVOS Meteorological Data collected by the CCGS Amundsen in the Canadian Arctic";
    Float64 Westernmost_Easting -172.564;
    String Winddir "True wind direction [degrees N]";
    String Windspeed "True wind speed [Knt]";
  }
}

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://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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