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Dataset Title:	Saint John Longwharf Meteorological Station
Institution:	COVE   (Dataset ID: SMA_saint_john_long_wharf)
Range:	longitude = -66.0683 to -66.0683°E, latitude = 45.27386 to 45.27386°N, time = 2026-03-18T00:00:00Z to 2026-04-09T05:00:00Z
Information:	Summary | License | FGDC | ISO 19115 | Metadata | Background | Subset | Data Access Form | Files

 

Graph Type:  lines linesAndMarkers markers sticks vectors X Axis:  time latitude longitude tempHi tempLow humidity dewpoint windSpeed windHi windAngle windRun windChill bar coolDD heatDD batteryVolts sourceVolts tempBoard tide rise tideDiff Y Axis:  time latitude longitude tempHi tempLow humidity dewpoint windSpeed windHi windAngle windRun windChill bar coolDD heatDD batteryVolts sourceVolts tempBoard tide rise tideDiff Color:  time latitude longitude tempHi tempLow humidity dewpoint windSpeed windHi windAngle windRun windChill bar coolDD heatDD batteryVolts sourceVolts tempBoard tide rise tideDiff   Constraints Optional Constraint #1 Optional Constraint #2 station_name time latitude longitude temp tempHi tempLow humidity dewpoint windSpeed windHi windDir windAngle windRun windChill heatIndex bar coolDD heatDD batteryVolts sourceVolts tempBoard arcInt tide rise tideDiff     != =~ <= >= = < >     != =~ <= >= = < >     station_name time latitude longitude temp tempHi tempLow humidity dewpoint windSpeed windHi windDir windAngle windRun windChill heatIndex bar coolDD heatDD batteryVolts sourceVolts tempBoard arcInt tide rise tideDiff     != =~ <= >= = < >     != =~ <= >= = < >     station_name time latitude longitude temp tempHi tempLow humidity dewpoint windSpeed windHi windDir windAngle windRun windChill heatIndex bar coolDD heatDD batteryVolts sourceVolts tempBoard arcInt tide rise tideDiff     != =~ <= >= = < >     != =~ <= >= = < >     station_name time latitude longitude temp tempHi tempLow humidity dewpoint windSpeed windHi windDir windAngle windRun windChill heatIndex bar coolDD heatDD batteryVolts sourceVolts tempBoard arcInt tide rise tideDiff     != =~ <= >= = < >     != =~ <= >= = < >     station_name time latitude longitude temp tempHi tempLow humidity dewpoint windSpeed windHi windDir windAngle windRun windChill heatIndex bar coolDD heatDD batteryVolts sourceVolts tempBoard arcInt tide rise tideDiff     != =~ <= >= = < >     != =~ <= >= = < >       Server-side Functions  distinct() orderBy orderByDescending orderByClosest orderByCount orderByLimit orderByMax orderByMin orderByMinMax orderByMean orderBySum (" station_name time latitude longitude temp tempHi tempLow humidity dewpoint windSpeed windHi windDir windAngle windRun windChill heatIndex bar coolDD heatDD batteryVolts sourceVolts tempBoard arcInt tide rise tideDiff station_name time latitude longitude temp tempHi tempLow humidity dewpoint windSpeed windHi windDir windAngle windRun windChill heatIndex bar coolDD heatDD batteryVolts sourceVolts tempBoard arcInt tide rise tideDiff station_name time latitude longitude temp tempHi tempLow humidity dewpoint windSpeed windHi windDir windAngle windRun windChill heatIndex bar coolDD heatDD batteryVolts sourceVolts tempBoard arcInt tide rise tideDiff station_name time latitude longitude temp tempHi tempLow humidity dewpoint windSpeed windHi windDir windAngle windRun windChill heatIndex bar coolDD heatDD batteryVolts sourceVolts tempBoard arcInt tide rise tideDiff ")   Graph Settings Marker Type:  None Plus X Dot Square Filled Square Circle Filled Circle Up Triangle Filled Up Triangle Borderless Filled Square Borderless Filled Circle Borderless Filled Up Triangle  Size:  3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Color:  Color Bar:  BlackBlueWhite BlackGreenWhite BlackRedWhite BlackWhite BlueWhiteRed BlueWideWhiteRed LightRainbow Ocean OceanDepth Rainbow Rainbow2 Rainfall ReverseRainbow RedWhiteBlue RedWhiteBlue2 RedWideWhiteBlue Spectrum Topography TopographyDepth WhiteBlueBlack WhiteGreenBlack WhiteRedBlack WhiteBlack YellowRed KT_algae KT_amp KT_balance KT_curl KT_deep KT_delta KT_dense KT_gray KT_haline KT_ice KT_matter KT_oxy KT_phase KT_solar KT_speed KT_tempo KT_thermal KT_turbid EK80  Continuity:  Continuous Discrete  Scale:  Linear Log    Minimum:   Maximum:   N Sections:  2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Draw land mask:  under over outline off Y Axis Minimum:   Maximum:    Ascending Descending Linear Log   Redraw the Graph (Please be patient. It may take a while to get the data.)   Optional: Then set the File Type: .asc .csv .csvp .csv0 .dataTable .das .dds .dods .esriCsv .fgdc .geoJson .graph .help .html .htmlTable .iso19115 .itx .json .jsonlCSV1 .jsonlCSV .jsonlKVP .mat .nc .ncHeader .ncCF .ncCFHeader .ncCFMA .ncCFMAHeader .nccsv .nccsvMetadata .ncoJson .odvTxt .parquet .parquetWMeta .subset .tsv .tsvp .tsv0 .wav .xhtml .kml .smallPdf .pdf .largePdf .smallPng .png .largePng .transparentPng (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:  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 second(s) minute(s) hour(s) day(s) month(s) year(s)

 

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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.
   

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  station_name {
    String _Encoding "UTF-8";
    String actual_range 
"SMA_saint_john_long_wharf
SMA_saint_john_long_wharf";
    String cf_role "timeseries_id";
    String ioos_category "Identifier";
    String long_name "Station Name";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.773792e+9, 1.7757108e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Timestamp";
    String source_name "UTC";
    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";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range 45.2738596347, 45.2738596347;
    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 -66.0683012, -66.0683012;
    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";
  }
  temp {
    String ioos_category "Temperature";
    String long_name "Temperature";
    String standard_name "air_temperature";
    String units "degree_C";
  }
  tempHi {
    Float32 actual_range -10.4, 8.5;
    String ioos_category "Temperature";
    String long_name "Maximum Air Temperature";
    String standard_name "air_temperature";
    String units "degree_C";
  }
  tempLow {
    Float32 actual_range -10.5, 7.4;
    String ioos_category "Temperature";
    String long_name "Minimum Air Temperature";
    String standard_name "air_temperature";
    String units "degree_C";
  }
  humidity {
    Float32 actual_range 18.0, 98.0;
    String ioos_category "Meteorology";
    String long_name "Humidity";
    String standard_name "relative_humidity";
    String units "1";
  }
  dewpoint {
    Float32 actual_range -20.7, 4.8;
    String ioos_category "Meteorology";
    String long_name "Dewpoint";
    String standard_name "dew_point_temperature";
    String units "degree_C";
  }
  windSpeed {
    Float32 actual_range 0.08333334, 7.75;
    String ioos_category "Wind";
    String long_name "Wind Speed";
    String standard_name "wind_speed";
    String units "m s-1";
  }
  windHi {
    Float32 actual_range 0.2777778, 22.05556;
    String ioos_category "Wind";
    String long_name "Wind Hi";
    String standard_name "wind_speed_of_gust";
    String units "m s-1";
  }
  windDir {
    String description "wind direction in cardinal points";
    String ioos_category "Wind";
    String long_name "Wind Direction";
  }
  windAngle {
    Int16 _FillValue 32767;
    Int16 actual_range 0, 359;
    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";
  }
  windRun {
    String description "If you throw a feather up in the air, and it is not affected by gravity, it would be the accumulated distance it would travel in kilometers over time. The records would be normally a 10 min interval.";
    String ioos_category "Wind";
    String long_name "Wind Run";
    String standard_name "wind run";
    String units "m";
  }
  windChill {
    Float32 actual_range -15.7, 5.6;
    String ioos_category "Temperature";
    String long_name "Wind Chill";
    String standard_name "wind_chill_of_air_temperature";
    String units "degree_C";
  }
  heatIndex {
    String ioos_category "Temperature";
    String long_name "Heat Index";
    String standard_name "heat_index_of_air_temperature";
    String units "degree_C";
  }
  bar {
    Float32 actual_range 1002.9, 1041.4;
    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";
  }
  coolDD {
    Float32 actual_range 0.0, 0.0;
    String description "refers to heating and cooling degree days (HDD and CDD), which are metrics used to estimate the energy needed for heating and cooling based on outside temperatures. They are calculated by comparing the daily average temperature to a base temperature, typically \\(18.8 C). If the daily average is above this baseline, it results in a cooling degree day (CDD), while a below-baseline average results in a heating degree day (HDD).";
    String ioos_category "Temperature";
    String long_name "Cool Degree Days";
    String standard_name "cool degree days";
    String units "cooling degree day";
  }
  heatDD {
    Float32 actual_range 0.072, 0.2;
    String description "refers to heating and cooling degree days (HDD and CDD), which are metrics used to estimate the energy needed for heating and cooling based on outside temperatures. They are calculated by comparing the daily average temperature to a base temperature, typically \\(18.8 C). If the daily average is above this baseline, it results in a cooling degree day (CDD), while a below-baseline average results in a heating degree day (HDD).";
    String ioos_category "Temperature";
    String long_name "Heat Degree Days";
    String standard_name "heat degree days";
    String units "heating degree day";
  }
  batteryVolts {
    Float32 actual_range 0.0, 0.0;
    String ioos_category "Unknown";
    String long_name "Battery Volts";
    String standard_name "battery voltage";
    String units "V";
  }
  sourceVolts {
    Float32 actual_range 24.5, 24.7;
    String ioos_category "Unknown";
    String long_name "Source Volts";
    String standard_name "source voltage";
    String units "V";
  }
  tempBoard {
    Float32 actual_range 1.9, 22.6;
    String ioos_category "Unknown";
    String long_name "Temp Board";
    String standard_name "temperature board";
    String units "degree_C";
  }
  arcInt {
    String description "sampling interval";
    String ioos_category "Unknown";
    String long_name "Arc Int";
    String units "1";
  }
  tide {
    Float32 _FillValue NaN;
    Float32 actual_range 46.0, 838.0;
    String ioos_category "Sea Level";
    String long_name "Tide Height";
    String standard_name "sea_surface_height";
    String units "cm";
  }
  rise {
    Float32 _FillValue NaN;
    Float32 actual_range 78.0, 851.5;
    String ioos_category "Sea Level";
    String long_name "Tide Rise height";
    String standard_name "sea_surface_height";
    String units "cm";
  }
  tideDiff {
    Float32 _FillValue NaN;
    Float32 actual_range -40.7, 56.7;
    String ioos_category "Sea Level";
    String long_name "Tide Difference";
    String standard_name "sea_surface_height";
    String units "cm";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "station_name, longitude, latitude";
    String Conventions "COARDS, CF-1.10, ACDD-1.3";
    String creator_name "Centre for Ocean Ventures & Entrepreneurship (COVE)";
    String creator_url "https://coveocean.com/";
    Float64 Easternmost_Easting -66.0683012;
    String featureType "TimeSeries";
    Float64 geospatial_lat_max 45.2738596347;
    Float64 geospatial_lat_min 45.2738596347;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -66.0683012;
    Float64 geospatial_lon_min -66.0683012;
    String geospatial_lon_units "degrees_east";
    String history 
"2026-04-09T05:03:59Z (local files)
2026-04-09T05:03:59Z https://www.smartatlantic.ca/tabledap/SMA_saint_john_long_wharf.das";
    String infoUrl "???";
    String institution "COVE";
    String keywords "angle, arc, arcInt, arctic, atmosphere, atmospheric, bar, battery, batteryVolts, board, chill, cloudy, cool, coolDD, cove, data, dew, dew point, dewpoint, diff, dir, earth, Earth Science > Atmosphere > Atmospheric Winds > Surface Winds, Earth Science > Oceans > Sea Surface Topography > Sea Surface Height, energy, heat, heatDD, heatIndex, height, humidity, index, int, level, local, low, max, meteorology, ocean, oceans, point, precipitation, rad, rain, rainfall, rainRate, rate, rise, run, science, sciences, sea, sea level, sea_surface_height, solar, solarEnergy, solarMax, solarRad, solarRadHi, solarUV, source, sourceVolts, speed, surface, tempBoard, temperature, tempHi, tempLow, tide, tideDiff, time, topography, volts, wind, wind_speed, windAngle, windChill, windDir, windHi, windRun, winds, windSpeed";
    String keywords_vocabulary "GCMD Science Keywords";
    String license "https://creativecommons.org/licenses/by/4.0/";
    Float64 Northernmost_Northing 45.2738596347;
    String platform "coastal structure";
    String platform_vocabulary "https://vocab.nerc.ac.uk/collection/L06/current/";
    String project "SmartAtlantic";
    String publisher_email "SmartBay@smartbay.ca";
    String publisher_name "SmartAtlantic";
    String publisher_url "https://www.smartatlantic.ca/";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 45.2738596347;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String subsetVariables "humidity, heatIndex, coolDD, batteryVolts, sourceVolts, arcInt";
    String summary "Data from a local source.";
    String testOutOfDate "now-20minutes";
    String time_coverage_end "2026-04-09T05:00:00Z";
    String time_coverage_start "2026-03-18T00:00:00Z";
    String title "Saint John Longwharf Meteorological Station";
    String title_fra "Station météorologique du Long Wharf de Saint John";
    Float64 Westernmost_Easting -66.0683012;
  }
}

 

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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 Data Access Protocol (DAP) and its selection constraints.

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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