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Data Access Form

Dataset Title:	CMAR - St. Mary's Bay
Institution:	CMAR (Dataset ID: cmar_8f10_9c65_13cb)
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Subset \| Files \| Make a graph

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Variable

Optional
Constraint #1

Optional
Constraint #2

Minimum

or a List of Values

Maximum

time (Timestamp, UTC)

2020-07-16T11:19:00Z

2021-06-18T11:53:00Z

buoy_id

buoy_name

latitude (degrees_north)

longitude (degrees_east)

battery_voltage (Battery Voltage (V), V)

5.9

14.5

temp_c (Device Temp, degree_Celsius)

1.0

55.0

wave_ht_sig (Wave Ht Sig (m), m)

0.0

573.41

wave_period_max (s)

0.0

19.69

wave_ht_max (Wave Ht Max (m), m)

0.0

644.0

wave_dir_avg (degree)

359

wave_spread_avg (degree)

sample_quality (1)

sea_water_temperature (degree_Celsius)

0.0

16.9

wind_speed (knots)

0.0

41.1

wind_dir_deci_deg (Wind From Direction, degree)

0.0

358.0

air_pres (Air Pres (h Pa), hPa)

0.0

1028.9

humidity_percent (Humidity Percent (%), 1)

0.0

1033.3

air_temperature (degree_Celsius)

0.0

100.0

precip_rain_int (mm hr-1)

0.0

38.2

precip_hail_int (hits/(cm^2 * hr))

0.0

compass_deci_deg (degree)

0.0

359.9

wind_bearing (Wind Bearing (degrees), degree)

0.0

999.9

Server-side Functions

distinct()

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File type: (more information)

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.59489834e+9, 1.62401718e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Timestamp";
    String source_name "timestamp";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String time_precision "1970-01-01T00:00:00Z";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  buoy_id {
    Int32 actual_range 334, 334;
    String cf_role "timeseries_id";
    String ioos_category "Identifier";
    String long_name "Buoy Id";
  }
  buoy_name {
    String ioos_category "Identifier";
    String long_name "Buoy Name";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 43.5973, 44.73364;
    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";
    Float32 actual_range -66.20533, -62.5427;
    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";
  }
  battery_voltage {
    Float32 actual_range 5.9, 14.5;
    String ioos_category "Unknown";
    String long_name "Battery Voltage (V)";
    String units "V";
  }
  temp_c {
    Float32 actual_range 1.0, 55.0;
    String ioos_category "Temperature";
    String long_name "Device Temp";
    String units "degree_Celsius";
  }
  wave_ht_sig {
    Float32 actual_range 0.0, 573.41;
    String ioos_category "Surface Waves";
    String long_name "Wave Ht Sig (m)";
    String units "m";
    Float32 valid_range 0.0, 50.0;
  }
  wave_period_max {
    Float32 actual_range 0.0, 19.69;
    Float64 colorBarMaximum 20.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Surface Waves";
    String long_name "Sea Surface Swell Wave Period";
    String standard_name "sea_surface_swell_wave_period";
    String units "s";
  }
  wave_ht_max {
    Float32 actual_range 0.0, 644.0;
    String ioos_category "Surface Waves";
    String long_name "Wave Ht Max (m)";
    String units "m";
    Float32 valid_range 0.0, 50.0;
  }
  wave_dir_avg {
    Int16 actual_range 0, 359;
    Float64 colorBarMaximum 360.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Surface Waves";
    String long_name "Sea Surface Wave To Direction";
    String standard_name "sea_surface_wave_to_direction";
    String units "degree";
  }
  wave_spread_avg {
    String _Unsigned "false";
    Byte actual_range 0, 47;
    String ioos_category "Surface Waves";
    String long_name "Wave Spread Avg (degrees)";
    String units "degree";
  }
  sample_quality {
    String _Unsigned "false";
    Byte actual_range 0, 16;
    Float64 colorBarMaximum 150.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Quality";
    String long_name "Sample Quality";
    String units "1";
  }
  sea_water_temperature {
    Float32 actual_range 0.0, 16.9;
    String ioos_category "Temperature";
    String standard_name "sea_water_temperature";
    String units "degree_Celsius";
  }
  wind_speed {
    Float32 actual_range 0.0, 41.1;
    Float64 colorBarMaximum 15.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Wind";
    String long_name "Wind Speed";
    String standard_name "wind_speed";
    String units "knots";
    Float32 valid_range 0.0, 100.0;
  }
  wind_dir_deci_deg {
    Float32 actual_range 0.0, 358.0;
    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";
  }
  air_pres {
    Float32 actual_range 0.0, 1028.9;
    String ioos_category "Unknown";
    String long_name "Air Pres (h Pa)";
    String units "hPa";
  }
  humidity_percent {
    Float32 actual_range 0.0, 1033.3;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Meteorology";
    String long_name "Humidity Percent (%)";
    String units "1";
  }
  air_temperature {
    Float32 actual_range 0.0, 100.0;
    String ioos_category "Temperature";
    String long_name "Air Temperature";
    String standard_name "air_temperature";
    String units "degree_Celsius";
  }
  precip_rain_int {
    Float32 actual_range 0.0, 38.2;
    String ioos_category "Meteorology";
    String long_name "Precip Rain Int (mm/hr)";
    String units "mm hr-1";
  }
  precip_hail_int {
    Float32 actual_range 0.0, 0.0;
    String ioos_category "Meteorology";
    String long_name "Precip Hail Int (hits/(cm^2 * Hr))";
    String units "hits/(cm^2 * hr)";
  }
  compass_deci_deg {
    Float32 actual_range 0.0, 359.9;
    String ioos_category "Unknown";
    String long_name "Compass Deci Deg (degrees)";
    String units "degree";
  }
  wind_bearing {
    Float32 actual_range 0.0, 999.9;
    String ioos_category "Wind";
    String long_name "Wind Bearing (degrees)";
    String units "degree";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "buoy_id, longitude, latitude";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_name "CMAR";
    String creator_type "institution";
    Float64 Easternmost_Easting -62.5427;
    String featureType "TimeSeries";
    Float64 geospatial_lat_max 44.73364;
    Float64 geospatial_lat_min 43.5973;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -62.5427;
    Float64 geospatial_lon_min -66.20533;
    String geospatial_lon_units "degrees_east";
    String history 
"2025-04-29T22:25:18Z (local files)
2025-04-29T22:25:18Z https://dev.cioosatlantic.ca/erddap/tabledap/cmar_8f10_9c65_13cb.html";
    String infoUrl "???";
    String institution "CMAR";
    String keywords "air, air_pres, atmosphere, atmospheric, average, battery, battery_voltage, bearing, buoy, buoy_id, buoy_name, cm^2, cmar, compass, compass_deci_deg, data, deci, degrees, device_temp_c, direction, earth, 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, hail, hits, hits/, humidity, humidity_percent, identifier, int, latitude, longitude, max, meteorology, mm/hr, name, ocean, oceans, percent, period, precip_hail_int, precip_rain_int, precipitation, pres, quality, rain, rainfall, sample, sample_quality, science, sea, sea_surface_swell_wave_period, sea_surface_wave_to_direction, seawater, sig, speed, spread, surface, surface waves, swell, swells, temp_air_c, temp_water_c, temperature, time, timestamp, v, voltage, water, wave, wave_dir_avg, wave_ht_max, wave_ht_sig, wave_period_max, wave_spread_avg, waves, wind, wind_bearing, wind_dir_deci_deg, wind_from_direction, wind_speed, wind_speed_m_s, winds, xeos, \\u00e2\\u00b0c";
    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.";
    Float64 Northernmost_Northing 44.73364;
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 43.5973;
    String standard_name_vocabulary "CF Standard Name Table v55";
    String subsetVariables "buoy_id, buoy_name, latitude, longitude";
    String summary "XEOS Buoy - 002. real-time buoy data. CMAR data from a local source.";
    String testOutOfDate "now-1day";
    String time_coverage_end "2021-06-18T11:53:00Z";
    String time_coverage_start "2020-07-16T11:19:00Z";
    String title "CMAR - St. Mary's Bay";
    Float64 Westernmost_Easting -66.20533;
  }
}

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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