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Dataset Title:	CreamT flood web service: Historic waves Dawlish station 103 - Dawlish_1A
Institution:	Regional Coastal Monitoring Programme (Dataset ID: CreamT_Legacy_API_3894_3e7a_0aef)
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Subset \| Make a graph

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Variable

Optional
Constraint #1

Optional
Constraint #2

Minimum

or a List of Values

Maximum

time (Date/Time (GMT), UTC)

longitude (degrees_east)

latitude (degrees_north)

flag

significant_wave_height (m)

0.06

3.71

maximum_observed_wave_height (m)

0.08

6.06

wave_period (Peak wave period, s)

1.7

22.2

sea_surface_wave_zero_upcrossing_period (s)

2.0

7.7

wave_from_direction (deg T)

359

wave_directional_spread (deg)

sea_surface_temperature (degC)

6.5

19.8

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 1.5463008e+9, 1.577835e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Date/Time (GMT)";
    String source_name "Date/Time (GMT)";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 _FillValue 9999.0;
    Float64 actual_range -3.42334, -3.0;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "Longitude";
    String sdn_P02_urn "SDN:P02::ALON";
    String sdn_parameter_name "Longitude east";
    String sdn_parameter_urn "SDN:P01::ALONZZ01";
    String sdn_uom_name "Degrees east";
    String sdn_uom_urn "SDN:P06::DEGE";
    String standard_name "longitude";
    String units "degrees_east";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 _FillValue 9999.0;
    Float64 actual_range 50.57746, 51.0;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "Latitude";
    String sdn_P02_urn "SDN:P02::ALAT";
    String sdn_parameter_name "Latitude north";
    String sdn_parameter_urn "SDN:P01::ALATZZ01";
    String sdn_uom_name "Degrees north";
    String sdn_uom_urn "SDN:P06::DEGN";
    String standard_name "latitude";
    String units "degrees_north";
  }
  flag {
    String _Unsigned "false";
    Byte actual_range 0, 9;
    Float64 colorBarMaximum 9.0;
    Float64 colorBarMinimum 0.0;
    String flag_meanings "flag_meanings,All data pass,Either HS or TZ fail so all data fail (except SST),TP fail + derivatives, Dir fail + derivatives,Spread fail + derivatives,TP fail jump test,Buoy off location,SST fail,Missing data";
    String flag_values "0,1,2,3,4,5,6,7,8,9";
    String long_name "Flag";
  }
  significant_wave_height {
    Float32 _FillValue 9999.0;
    Float32 actual_range 0.06, 3.71;
    String long_name "Significant Wave Height";
    String sdn_P02_name "Wave height and period statistics";
    String sdn_P02_urn "SDN:P02::WVST";
    String sdn_parameter_name "Significant wave height of waves {Hs} on the water body";
    String sdn_parameter_urn "SDN:P01::GTDHZZ01";
    String sdn_uom_name "Metres";
    String sdn_uom_urn "SDN:P06::ULAA";
    String standard_name "sea_surface_wave_significant_height";
    String units "m";
  }
  maximum_observed_wave_height {
    Float32 _FillValue 9999.0;
    Float32 actual_range 0.08, 6.06;
    String long_name "Maximum observed wave height";
    String sdn_P02_name "Wave height and period statistics";
    String sdn_P02_urn "SDN:P02::WVST";
    String sdn_parameter_name "Wave height maximum of waves on the water body";
    String sdn_parameter_urn "SDN:P01::GMXHBSZZ";
    String sdn_uom_name "Metres";
    String sdn_uom_urn "SDN:P06::ULAA";
    String standard_name "sea_surface_wave_maximum_height";
    String units "m";
  }
  wave_period {
    Float32 _FillValue 9999.0;
    Float32 actual_range 1.7, 22.2;
    String long_name "Peak wave period";
    String sdn_P02_name "Wave height and period statistics";
    String sdn_P02_urn "SDN:P02::WVST";
    String sdn_parameter_name "Period at spectral maximum of waves {peak period Tp} on the water body";
    String sdn_parameter_urn "SDN:P01::GTPKZZ01";
    String sdn_uom_name "Seconds";
    String sdn_uom_urn "SDN:P06::UTBB";
    String standard_name "sea_surface_wave_period_at_variance_spectral_density_maximum";
    String units "s";
  }
  sea_surface_wave_zero_upcrossing_period {
    Float32 _FillValue 9999.0;
    Float32 actual_range 2.0, 7.7;
    String long_name "Zero-crossing period of waves {Tz} on the water body";
    String sdn_P02_name "Wave height and period statistics";
    String sdn_P02_urn "SDN:P02::WVST";
    String sdn_parameter_name "Zero-crossing period of waves {Tz} on the water body";
    String sdn_parameter_urn "SDN:P01::GTZAZZ01";
    String sdn_uom_name "Seconds";
    String sdn_uom_urn "SDN:P06::UTBB";
    String standard_name "sea_surface_wave_zero_upcrossing_period";
    String units "s";
  }
  wave_from_direction {
    Int16 _FillValue 9999;
    Int16 actual_range 0, 359;
    String long_name "Peak wave from direction relative to magnetic north";
    String sdn_P02_name "Wave direction";
    String sdn_P02_urn "SDN:P02::GWDR";
    String sdn_parameter_name "Direction (from) of waves on the water body";
    String sdn_parameter_urn "SDN:P01::GWDRZZ01";
    String sdn_uom_name "Degrees True";
    String sdn_uom_urn "SDN:P06::UABB";
    String standard_name "sea_surface_wave_from_direction";
    String units "deg T";
  }
  wave_directional_spread {
    Int16 _FillValue 9999;
    Int16 actual_range 5, 77;
    String long_name "Wave directional spreading";
    String sdn_P02_name "Wave direction";
    String sdn_P02_urn "SDN:P02::GWDR";
    String sdn_parameter_name "Directional spreading of waves on the water body";
    String sdn_parameter_urn "SDN:P01::GSPRZZ01";
    String sdn_uom_name "Degrees";
    String sdn_uom_urn "SDN:P06::UAAA";
    String standard_name "sea_surface_wave_directional_spread";
    String units "deg";
  }
  sea_surface_temperature {
    Float32 _FillValue 9999.0;
    Float32 actual_range 6.5, 19.8;
    String long_name "Sea Surface Temperature";
    String sdn_P02_name "Temperature of the water column";
    String sdn_P02_urn "SDN:P02::TEMP";
    String sdn_parameter_name "Temperature of the water body";
    String sdn_parameter_urn "SDN:P01::TEMPPR01";
    String sdn_uom_name "Degrees Celsius";
    String sdn_uom_urn "SDN:P06::UPAA";
    String standard_name "sea_water_temperature";
    String units "degC";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Point";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_email "cco@channelcoast.org";
    String creator_name "Regional Coastal Monitoring Programme of England";
    String creator_type "institution";
    String creator_url "https://www.channelcoast.org/";
    Float64 Easternmost_Easting -3.0;
    String featureType "Point";
    Float64 geospatial_lat_max 51.0;
    Float64 geospatial_lat_min 50.57746;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -3.0;
    Float64 geospatial_lon_min -3.42334;
    String geospatial_lon_units "degrees_east";
    String history 
"Downloaded from http://data.channelcoast.org/ on 2020-10-12
2024-12-26T21:03:38Z https://www.channelcoast.org/realtimedata/?chart=103&tab=qc&disp_option=
2024-12-26T21:03:38Z https://linkedsystems.uk/erddap/tabledap/CreamT_Legacy_API_3894_3e7a_0aef.html";
    String infoUrl "https://www.channelcoast.org/realtimedata/?chart=103&tab=waves";
    String institution "Regional Coastal Monitoring Programme";
    String keywords "bodc, british, centre, conditions, data, date, date/time, dawlish, degrees, dirp, flag, hm0, hmax, latitude, longitude, nearshore, oceanographic, sea, spread, SST, surface, temperature, time, wave";
    String license "Data displayed on this page are from the Regional Coastal Monitoring Programme, made freely available under the terms of the Open Government Licence (https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/).";
    Float64 Northernmost_Northing 51.0;
    String publisher_email "enquiries@bodc.ac.uk";
    String publisher_institution "National Oceanography Centre (NOC)";
    String publisher_name "British Oceanographic Data Centre (BODC)";
    String publisher_url "https://www.bodc.ac.uk/";
    String site_name "CreamT flood hazard monitoring site - Dawlish_1A";
    String sourceUrl "https://www.channelcoast.org/realtimedata/?chart=103&tab=qc&disp_option=";
    Float64 Southernmost_Northing 50.57746;
    String standard_name_vocabulary "https://vocab.nerc.ac.uk/collection/P07/current/";
    String subsetVariables "latitude, longitude, time";
    String summary "Historic waves timeseries data from Regional Coastal Monitoring Programme Dawlish station 103. The data are used in this instance of ERDDAP as part of the CreamT flood hazard web service that monitors site Dawlish_1A.";
    String time_coverage_end "2019-12-31T23:30:00Z";
    String time_coverage_start "2019-01-01T00:00:00Z";
    String title "CreamT flood web service: Historic waves Dawlish station 103 - Dawlish_1A";
    Float64 Westernmost_Easting -3.42334;
  }
}

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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.
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(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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