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Dataset Title:  AVOS Motor Vessel NAMAO Subscribe RSS
Institution:  Environment and Climate Change Canada   (Dataset ID: AVOS_namao_ee8d_d94d_df77)
Range: longitude = -99.2554 to -96.379074°E, latitude = 50.431805 to 53.84766°N, time = 2018-04-10T14:00Z to 2022-09-28T19:40Z
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Subset | Data Access Form | Files
 
Graph Type:  ?
X Axis: 
Y Axis: 
Color: 
-1+1
 
Constraints ? Optional
Constraint #1 ?
Optional
Constraint #2 ?
       
       
       
       
       
 
Server-side Functions ?
 distinct() ?
? ("Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.")
 
Graph Settings
Marker Type:   Size: 
Color: 
Color Bar:   Continuity:   Scale: 
   Minimum:   Maximum:   N Sections: 
Draw land mask: 
Y Axis Minimum:   Maximum:   
 
(Please be patient. It may take a while to get the data.)
 
Optional:
Then set the File Type: (File Type information)
and
or view the URL:
(Documentation / Bypass this form ? )
    Click on the map to specify a new center point. ?
Zoom: 
Time range:    |<   -       
[The graph you specified. Please be patient.]

 

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 1.5233688e+9, 1.664394e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Date And Time";
    String source_name "Date_and_time";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String time_precision "1970-01-01T00:00Z";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range 50.431805, 53.8476583333333;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 actual_range -99.2554, -96.3790766666667;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  wind_speed {
    Float32 actual_range 0.0, 41.9;
    Float64 colorBarMaximum 15.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Wind";
    String long_name "Wind Speed";
    String standard_name "wind_speed";
  }
  RelWindDirFrom {
    Float32 actual_range 0.0, 48.8;
    Float64 colorBarMaximum 360.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Wind";
    String long_name "Wind From Direction";
    String standard_name "wind_from_direction";
  }
  WindDirFrom {
    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";
  }
  air_pressure {
    Float32 actual_range 0.0, 1016.02;
    Float64 colorBarMaximum 1050.0;
    Float64 colorBarMinimum 950.0;
    String ioos_category "Pressure";
    String long_name "Air Pressure";
    String standard_name "air_pressure";
  }
  air_temperature {
    Float32 actual_range -38.3, 33.8;
    Float64 colorBarMaximum 40.0;
    Float64 colorBarMinimum -10.0;
    String ioos_category "Temperature";
    String long_name "Air Temperature";
    String standard_name "air_temperature";
  }
  relative_humidity {
    Byte actual_range 11, 110;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 20.0;
    String ioos_category "Meteorology";
    String long_name "Relative Humidity";
    String standard_name "relative_humidity";
  }
  Temp {
    Float32 actual_range 0.19, 28.53;
    String ioos_category "Temperature";
    String long_name "Temperature";
  }
  platform_speed_wrt_ground {
    Float32 actual_range 0.0, 12.8;
    String ioos_category "Currents";
    String long_name "Platform Speed Wrt Ground";
  }
  air_pressure_at_mean_sea_level {
    Float32 actual_range 979.46, 1048.11;
    Float64 colorBarMaximum 1050.0;
    Float64 colorBarMinimum 950.0;
    String ioos_category "Pressure";
    String long_name "Air Pressure";
    String standard_name "air_pressure";
  }
  platform_orientation {
    Float32 actual_range 0.0, 999.0;
    String ioos_category "Unknown";
    String long_name "Platform Orientation";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Point";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_name "Environment and Climate Change Canada";
    String creator_url "https://www.canada.ca/en/environment-climate-change.html";
    String Data_collection_end_date "2018-12-31";
    String Data_collection_start_date "2018-04-10";
    String Dataset_Author "Environment and Climate Change Canada";
    String Dataset_Author_Affiliation "Meteorological Service of Canada";
    String Dataset_Author_Email "Charlotte.Cockburn@ec.gc.ca";
    String Dataset_Contributor "Scott, Karen";
    String Dataset_Contributor_Afiliation "Lake Winnipeg Research Consortium";
    String Dataset_Contributor_Email "kjs@lakewinnipegresearch.org";
    String Dataset_Contributor_Role "Project Leader";
    String Dataset_Maintenance_&_Update_Frequency "Annually";
    String Dataset_Status "Complete";
    Float64 Dataset_Version 1.0;
    Float64 Easternmost_Easting -96.3790766666667;
    String featureType "Point";
    Float64 geospatial_lat_max 53.8476583333333;
    Float64 geospatial_lat_min 50.431805;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -96.3790766666667;
    Float64 geospatial_lon_min -99.2554;
    String geospatial_lon_units "degrees_east";
    String history 
"2024-07-20T00:57:12Z https://canwin-datahub.ad.umanitoba.ca/data/dataset/avos-namao/resource/d7a5b291-a0fa-4dc6-9f26-6c3bff12a423
2024-07-20T00:57:12Z http://CanWINerddap.ad.umanitoba.ca/tabledap/AVOS_namao_ee8d_d94d_df77.das";
    String infoUrl "https://canwin-datahub.ad.umanitoba.ca/data/dataset/avos-namao";
    String institution "Environment and Climate Change Canada";
    String keywords "air, air_pressure, air_pressure_corrected, air_temperature, atmosphere, atmospheric, avos, canada, change, climate, currents, data, date, direction, 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 > Surface Air Temperature, Earth Science > Atmosphere > Atmospheric Water Vapor > Humidity, Earth Science > Atmosphere > Atmospheric Winds > Surface Winds, environment, ground, humidity, latitude, level, longitude, measurements, meteorology, namao, orientation, platform, platform_orientation, platform_speed_wrt_ground, pressure, relative, relative_humidity, RelWindDirFrom, science, sea, seawater, speed, static, surface, Temp, temperature, time, v, vapor, water, wind, wind_from_direction, wind_speed, WindDirFrom, winds, wrt";
    String keywords_vocabulary "GCMD Science Keywords";
    String license "Open Government Licence 2.0 - Canada";
    Float64 Northernmost_Northing 53.8476583333333;
    String Research_Area "Lake Winnipeg";
    String Sample_collection_instrument_name "AVOS";
    String sourceUrl "https://canwin-datahub.ad.umanitoba.ca/data/dataset/avos-namao/resource/d7a5b291-a0fa-4dc6-9f26-6c3bff12a423";
    Float64 Southernmost_Northing 50.431805;
    String standard_name_vocabulary "CF Standard Name Table v55";
    String subsetVariables "platform_speed_wrt_ground";
    String summary "Automated Voluntary Observing Ship (AVOS) program meteorological data recorded aboard the M/V NAMAO. January 1st, 2010 to present.  10-minute measurements, which includes coordinates, temperature (air and water), wind (speed and direction), pressure (barometric and sea level), ship speed (knots) and orientation. This dataset is curated by CanWIN data curator and is available in CSV format.";
    String time_coverage_end "2022-09-28T19:40Z";
    String time_coverage_start "2018-04-10T14:00Z";
    String title "AVOS Motor Vessel NAMAO";
    String Type "Dataset";
    Float64 Westernmost_Easting -99.2554;
  }
}

 

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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