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Dataset Title:	Hampton Harbor, NH Tide Gauge
Institution:	Onset Hobolink   (Dataset ID: ONSET_hamptonbay_hourly_water_level)
Information:	Summary | License | FGDC | ISO 19115 | Metadata | Background | Files | Make a graph

 

Variable	Optional Constraint #1		Optional Constraint #2		Minimum	Maximum
Station	!= =~ <= >= = < >		!= =~ <= >= = < >		"Hampton Harbor"	"Hampton Harbor"
latitude (degrees_north)	!= =~ <= >= = < >		!= =~ <= >= = < >		42.9001	42.9001
longitude (degrees_east)	!= =~ <= >= = < >		!= =~ <= >= = < >		-70.8185	-70.8185
time (UTC)	!= =~ <= >= = < >		!= =~ <= >= = < >		2022-07-06T22:36:00Z	2024-09-16T17:54:00Z
Temp (Temperature, celsius)	!= =~ <= >= = < >		!= =~ <= >= = < >		2.02	21.37
MLLW_feet (Mean Lower Low Level feet, feet)	!= =~ <= >= = < >		!= =~ <= >= = < >		-6.911700000000001	17.575100000000003
MLLW_meter (Mean Low Low Water meters, m)	!= =~ <= >= = < >		!= =~ <= >= = < >		-2.10668616	5.3568904800000015
MSL (Mean Sea Level, m)	!= =~ <= >= = < >		!= =~ <= >= = < >		-3.4146861600000005	4.048890480000002
MLLW_meter_qartod_gross_range_test	!= =~ <= >= = < >		!= =~ <= >= = < >		1	4
MLLW_meter_qartod_spike_test	!= =~ <= >= = < >		!= =~ <= >= = < >		1	4
MLLW_meter_qartod_flat_line_test	!= =~ <= >= = < >		!= =~ <= >= = < >		1	1
MLLW_meter_qartod_rate_of_change_test	!= =~ <= >= = < >		!= =~ <= >= = < >		1	3
qartod_aggregate (QARTOD Aggregate Flag)	!= =~ <= >= = < >		!= =~ <= >= = < >		1	4

 

Server-side Functions

distinct()

orderBy orderByDescending orderByClosest orderByCount orderByLimit orderByMax orderByMin orderByMinMax orderByMean orderBySum (" Station latitude longitude time Temp MLLW_feet MLLW_meter MSL MLLW_meter_qartod_gross_range_test MLLW_meter_qartod_spike_test MLLW_meter_qartod_flat_line_test MLLW_meter_qartod_rate_of_change_test qartod_aggregate Station latitude longitude time Temp MLLW_feet MLLW_meter MSL MLLW_meter_qartod_gross_range_test MLLW_meter_qartod_spike_test MLLW_meter_qartod_flat_line_test MLLW_meter_qartod_rate_of_change_test qartod_aggregate Station latitude longitude time Temp MLLW_feet MLLW_meter MSL MLLW_meter_qartod_gross_range_test MLLW_meter_qartod_spike_test MLLW_meter_qartod_flat_line_test MLLW_meter_qartod_rate_of_change_test qartod_aggregate Station latitude longitude time Temp MLLW_feet MLLW_meter MSL MLLW_meter_qartod_gross_range_test MLLW_meter_qartod_spike_test MLLW_meter_qartod_flat_line_test MLLW_meter_qartod_rate_of_change_test qartod_aggregate Station latitude longitude time Temp MLLW_feet MLLW_meter MSL MLLW_meter_qartod_gross_range_test MLLW_meter_qartod_spike_test MLLW_meter_qartod_flat_line_test MLLW_meter_qartod_rate_of_change_test qartod_aggregate ")

File type: (more information) .asc - View OPeNDAP-style ISO-8859-1 comma-separated text. .csv - Download a ISO-8859-1 comma-separated text table (line 1: names; line 2: units; ISO 8601 times). .csvp - Download a ISO-8859-1 .csv file with line 1: name (units). Times are ISO 8601 strings. .csv0 - Download a ISO-8859-1 .csv file without column names or units. Times are ISO 8601 strings. .dataTable - A JSON file formatted for use with the Google Visualization client library (Google Charts). .das - View the dataset's metadata via an ISO-8859-1 OPeNDAP Dataset Attribute Structure (DAS). .dds - View the dataset's structure via an ISO-8859-1 OPeNDAP Dataset Descriptor Structure (DDS). .dods - OPeNDAP clients use this to download the data in the DODS binary format. .esriCsv - Download a ISO_8859_1 .csv file for ESRI's ArcGIS 9.x and below (separate date and time columns). .fgdc - View the dataset's UTF-8 FGDC .xml metadata. .geoJson - Download longitude,latitude,otherColumns data as a UTF-8 GeoJSON .json file. .graph - View a Make A Graph web page. .help - View a web page with a description of tabledap. .html - View an OPeNDAP-style HTML Data Access Form. .htmlTable - View a UTF-8 .html web page with the data in a table. Times are ISO 8601 strings. .iso19115 - View the dataset's ISO 19115-2/19139 UTF-8 .xml metadata. .itx - Download an ISO-8859-1 Igor Text File. Each response column becomes a wave. .json - View a table-like UTF-8 JSON file (missing value = 'null'; times are ISO 8601 strings). .jsonlCSV1 - View a UTF-8 JSON Lines CSV file with column names on line 1 (mv = 'null'; times are ISO 8601 strings). .jsonlCSV - View a UTF-8 JSON Lines CSV file without column names (mv = 'null'; times are ISO 8601 strings). .jsonlKVP - View a UTF-8 JSON Lines file with Key:Value pairs (missing value = 'null'; times are ISO 8601 strings). .mat - Download a MATLAB binary file. .nc - Download a flat, table-like, NetCDF-3 binary file with COARDS/CF/ACDD metadata. .ncHeader - View the UTF-8 header (the metadata) for the NetCDF-3 .nc file. .ncCF - Download a NetCDF-3 CF Discrete Sampling Geometries file (Contiguous Ragged Array). .ncCFHeader - View the UTF-8 header (the metadata) for the .ncCF file. .ncCFMA - Download a NetCDF-3 CF Discrete Sampling Geometries file (Multidimensional Array). .ncCFMAHeader - View the UTF-8 header (the metadata) for the .ncCFMA file. .nccsv - Download a NetCDF-3-like 7-bit ASCII NCCSV .csv file with COARDS/CF/ACDD metadata. .nccsvMetadata - View the dataset's metadata as the top half of a 7-bit ASCII NCCSV .csv file. .ncoJson - Download a UTF-8 NCO lvl=2 JSON file with COARDS/CF/ACDD metadata. .odvTxt - Download longitude,latitude,time,otherColumns as an ISO-8859-1 ODV Generic Spreadsheet File (.txt). .subset - View an HTML form which uses faceted search to simplify picking subsets of the data. .tsv - Download a ISO-8859-1 tab-separated text table (line 1: names; line 2: units; ISO 8601 times). .tsvp - Download a ISO-8859-1 .tsv file with line 1: name (units). Times are ISO 8601 strings. .tsv0 - Download a ISO-8859-1 .tsv file without column names or units. Times are ISO 8601 strings. .wav - Download a .wav audio file. All columns must be numeric and of the same type. .xhtml - View a UTF-8 XHTML (XML) file with the data in a table. Times are ISO 8601 strings. .kml - View a .kml file, suitable for Google Earth. .smallPdf - View a small .pdf image file with a graph or map. .pdf - View a standard, medium-sized .pdf image file with a graph or map. .largePdf - View a large .pdf image file with a graph or map. .smallPng - View a small .png image file with a graph or map. .png - View a standard, medium-sized .png image file with a graph or map. .largePng - View a large .png image file with a graph or map. .transparentPng - View a .png image file (just the data, without axes, landmask, or legend).

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  Station {
    String ioos_category "Identifier";
    String long_name "Station";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 42.9001, 42.9001;
    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 -70.8185, -70.8185;
    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";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.65714696e+9, 1.72650924e+9;
    String axis "T";
    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";
  }
  Temp {
    Float64 actual_range 2.02, 21.37;
    String ioos_category "Temperature";
    String long_name "Temperature";
    String units "celsius";
  }
  MLLW_feet {
    Float64 actual_range -6.911700000000001, 17.575100000000003;
    String ioos_category "Unknown";
    String long_name "Mean Lower Low Level feet";
    String units "feet";
  }
  MLLW_meter {
    Float64 actual_range -2.10668616, 5.3568904800000015;
    String ioos_category "Unknown";
    String long_name "Mean Low Low Water meters";
    String units "m";
  }
  MSL {
    Float64 actual_range -3.4146861600000005, 4.048890480000002;
    String ioos_category "Unknown";
    String long_name "Mean Sea Level";
    String units "m";
  }
  MLLW_meter_qartod_gross_range_test {
    Int32 actual_range 1, 4;
    String flag_meanings "\"PASS NOT_EVALUATED SUSPECT FAIL MISSING\"";
    String flag_values "1, 2, 3, 4, 9";
    String ioos_category "quality";
    String long_name "MLLW Meter Qartod Gross Range Test Flag";
    String standard_name "mllw_meter_qartod_gross_range_test_flag";
  }
  MLLW_meter_qartod_spike_test {
    Int32 actual_range 1, 4;
    String flag_meanings "\"PASS NOT_EVALUATED SUSPECT FAIL MISSING\"";
    String flag_values "1, 2, 3, 4, 9";
    String ioos_category "quality";
    String long_name "QARTOD MLLW Meter Spike Test Flag";
    String standard_name "mllw_meter_spike_test_flag";
  }
  MLLW_meter_qartod_flat_line_test {
    Int32 actual_range 1, 1;
    String flag_meanings "\"PASS NOT_EVALUATED SUSPECT FAIL MISSING\"";
    String flag_values "1, 2, 3, 4, 9";
    String ioos_category "quality";
    String long_name "QARTOD MLLW Meter Flat Line Test Flag";
    String standard_name "mllw_meter_flat_line_test_flag";
  }
  MLLW_meter_qartod_rate_of_change_test {
    Int32 actual_range 1, 3;
    String flag_meanings "\"PASS NOT_EVALUATED SUSPECT FAIL MISSING\"";
    String flag_values "1, 2, 3, 4, 9";
    String ioos_category "quality";
    String long_name "QARTOD MLLW Meter Rate of Change Test Flag";
    String standard_name "mllw_meter_rate_of_change_test_flag";
  }
  qartod_aggregate {
    Int32 actual_range 1, 4;
    String flag_meanings "\"PASS NOT_EVALUATED SUSPECT FAIL MISSING\"";
    String flag_values "1, 2, 3, 4, 9";
    String ioos_category "quality";
    String long_name "QARTOD Aggregate Flag";
    String standard_name "aggregate_quality_flag";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Point";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_email "Francesco.Peri@umb.edu";
    String creator_name "Onset Hobolink";
    String creator_type "institution";
    String creator_url "http://hobolink.com";
    Float64 Easternmost_Easting -70.8185;
    String featureType "Point";
    Float64 geospatial_lat_max 42.9001;
    Float64 geospatial_lat_min 42.9001;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -70.8185;
    Float64 geospatial_lon_min -70.8185;
    String geospatial_lon_units "degrees_east";
    String history 
"2024-09-16T20:17:25Z (local files)
2024-09-16T20:17:25Z http://data.neracoos.org/erddap/tabledap/ONSET_hamptonbay_hourly_water_level.html";
    String infoUrl "http://hobolink.com";
    String institution "Onset Hobolink";
    String keywords "gauge, hampton, hobolink, mean, meter, mllw, MLLW_feet, MLLW_meter, msl, onset, sea, station, Temp, temperature, tide, water level";
    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 42.9001;
    String project "NERACOOS";
    String project_url "http://www.neracoos.org";
    String publisher_email "info@neracoos.org";
    String publisher_phone "(603) 319 1785";
    String publisher_url "http://www.neracoos.org";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 42.9001;
    String standard_name_vocabulary "CF Standard Name Table v29";
    String summary 
"Tide gauge located in Hampton Harbor, NH. Funded by NERACOOS. Data is
        reported in elevation above MLLW (NAVD88) in feet and also converted to meters. NOAA uses
        Mean Lower Low Water (MLLW), which is the average height of the lowest tide recorded at a
        tide station each day during a 19-year recording period, known as the National Tidal Datum
        Epoch.[5] MLLW is only a mean, so some tidal levels may be negative relative to MLLW; see
        also mean low water spring. The 19-year recording period is the nearest full year count to
        the 18.6-year cycle of the lunar node regression, which has an effect on tides. At this
        location Mean Sea Level (MSL) is 1.308 meters above MLLW Benchmark used: NOAA Station ID:
        8440452 - PLUM ISLAND, MERRIMACK RIVER ENTRANCE (with extrapolated estimate) MSL meters =
        (MLLW ft. * 0.3048) + GAUGE location correction.";
    String testOutOfDate "now-1day";
    String time_coverage_end "2024-09-16T17:54:00Z";
    String time_coverage_start "2022-07-06T22:36:00Z";
    String title "Hampton Harbor, NH Tide Gauge";
    Float64 Westernmost_Easting -70.8185;
  }
}

 

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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 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.
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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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