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Dataset Title:  Water Level measured from a Pressure Tide Gauge Instrument Deployed in Choke
Pass on Calvert Island Research
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Institution:  Hakai Institute   (Dataset ID: HakaiCalvertCP1TideGauge)
Range: longitude = -128.12103 to -128.12103°E, latitude = 51.670666 to 51.670666°N, time = 2020-01-01T08:00:00Z to 2021-01-01T07:55:00Z
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Subset | 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 {
    String actual_range 
"CP01
CP01";
    String cf_role "timeseries_id";
  }
  instrument {
    String actual_range 
"RBRSoloD SN079156
RBRSoloD SN079156";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 _FillValue NaN;
    Float64 actual_range 51.67066666666667, 51.67066666666667;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "Latitude";
    Float64 missing_value NaN;
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 _FillValue NaN;
    Float64 actual_range -128.12103333333334, -128.12103333333334;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "Longitude";
    Float64 missing_value NaN;
    String standard_name "longitude";
    String units "degrees_east";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.5778656e+9, 1.6094877e+9;
    String axis "T";
    String calendar "proleptic_gregorian";
    String ioos_category "Time";
    String long_name "Time";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  instrument_depth {
    Float64 _FillValue NaN;
    Float64 actual_range 5.460498304267158, 10.586200201863932;
    String long_name "Instrument Depth";
    String standard_name "sea_floor_depth_below_sea_surface";
    String units "m";
  }
  water_height {
    Float64 _FillValue NaN;
    Float64 actual_range -2.714465899651815, 2.4112359979449582;
    String long_name "Water Level Above Mean Sea Level";
    Float64 missing_value NaN;
    String standard_name "height_above_mean_sea_level";
    String units "m";
  }
 }
  NC_GLOBAL {
    String _NCProperties "version=1|netcdflibversion=4.6.1|hdf5libversion=1.10.4";
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "station,instrument,latitude,longitude";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    Float64 Easternmost_Easting -128.12103333333334;
    String featureType "TimeSeries";
    Float64 geospatial_lat_max 51.67066666666667;
    Float64 geospatial_lat_min 51.67066666666667;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -128.12103333333334;
    Float64 geospatial_lon_min -128.12103333333334;
    String geospatial_lon_units "degrees_east";
    String history 
"Extract RBR Solo data with Ruskin software
Retrieve Atmospheric Pressure measured from Hakai's Pruth Dock Weather Station.
Convert Atmospheric pressure to dBar.
Substract atmospheric pressure from measured sea water pressure.
Derive depth from corrected sea water pressure.
 Generated a water_level variable centered around the mean sea level.
2022-12-08T00:23:16Z (local files)
2022-12-08T00:23:16Z https://catalogue.hakai.org/tabledap/HakaiCalvertCP1TideGauge.das";
    String infoUrl "https://www.hakai.org";
    String institution "Hakai Institute";
    String instrument "RBR SoloD SN";
    String instrument_calibration "{\"1\": {\"name\": \"Pressure\", \"calibration\": \"35.32503 1933.8774 91.36211 -12.728503\", \"units\": \"dbar (dbar)\", \"rangingMode\": \"None\"}}";
    String instrument_firmware "3.270";
    String instrument_serial "079156";
    String keywords "above, air, air_pressure, atmosphere, atmospheric, corrected, data, depth, dock, dpth01, 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 > Oceans > Ocean Pressure > Sea Level Pressure, Earth Science > Oceans > Ocean Pressure > Water Pressure, gauge, height, height_above_mean_sea_level, instrument, latitude, level, longitude, mean, measurements, ocean, oceans, pres08, pres20, pressure, pruth, PruthTideHeightAvg, science, sea, Sea_Pressure, sea_water_pressure, sea_water_pressure_at_sea_water_surface, seabed, seawater, series, static, StationAirPressure, StationAirPressure_dbar, surface, tide, time, time series, water, water_height";
    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 51.67066666666667;
    String organization "Hakai Institute";
    String original_header "{\"header_info\": {}, \"Model\": \"RBRsolo\", \"Firmware\": \"3.270\", \"Serial\": \"079156\", \"HostVersion\": \"(Ruskin version number - 2.10.4)\", \"LoggerTime\": \"29-Aug-2020 23:06:10.664\", \"LoggingStartTime\": \"12-Feb-2020 21:20:00.000\", \"LoggingEndTime\": \"31-Dec-2099 00:00:00.000\", \"LoggingSamplingPeriod\": \"00:01:15\", \"NumberOfChannels\": \"1\", \"Channel\": {\"1\": {\"name\": \"Pressure\", \"calibration\": \"35.32503 1933.8774 91.36211 -12.728503\", \"units\": \"dbar (dbar)\", \"rangingMode\": \"None\"}}, \"Event\": {\"1\": {\"time\": \"12-Feb-2020 21:20:00.000\", \"sample\": \"1\", \"type\": \"Time synchronization marker\"}, \"2\": {\"time\": \"29-Aug-2020 23:05:46.000\", \"sample\": \"229334\", \"type\": \"User stopped the deployment\"}}, \"NumberOfSamples\": 229333}";
    String platform "fixed benthic node";
    String platform_vocabulary "https://vocab.nerc.ac.uk/collection/L06/current/";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 51.67066666666667;
    String standard_name_vocabulary "CF Standard Name Table v79";
    String subsetVariables "station,instrument";
    String summary "This dataset present a time series of water level measurements made by an RBR Solo pressure sensor deployed by the Hakai Institute near the Calvert Island Research Station in the coastal region of Choke Pass. Sea Pressure collected by the instrument just above the sea bed was then corrected to substract the atmospheric pressure based on the Hakai Pruth Dock Weather Station. The resulting sea pressure was then converted to a depth with the Gibbs Sea Water TEOS-10 toolbox and substracted by the mean water level measured at the location.";
    String time_coverage_end "2021-01-01T07:55:00Z";
    String time_coverage_start "2020-01-01T08:00:00Z";
    String title "Water Level measured from a Pressure Tide Gauge Instrument Deployed in Choke Pass on Calvert Island Research";
    Float64 Westernmost_Easting -128.12103333333334;
  }
}

 

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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