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Dataset Title:	USGS-CMG time-series data: SANDWICH2016 - 1059 - 10591dwvs-cal
Institution:	USGS Coastal and Marine Geology Program (Dataset ID: 10591dwvs-cal)
Range:	longitude = -70.47722 to -70.47722°E, latitude = 41.765923 to 41.765923°N, altitude = -3.75 to -3.75m, time = 2016-01-21T22:08:32Z to 2016-01-25T15:28:32Z
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| 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:

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.

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  feature_type_instance {
    String cf_role "timeseries_id";
    String ioos_category "Unknown";
    String long_name "Identifier for each feature type instance";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range 41.765921595, 41.765921595;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "sensor latitude";
    String standard_name "latitude";
    String units "degrees_north";
    Float64 valid_max 41.765921595;
    Float64 valid_min 41.765921595;
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 actual_range -70.47721615, -70.47721615;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "sensor longitude";
    String standard_name "longitude";
    String units "degrees_east";
    Float64 valid_max -70.47721615;
    Float64 valid_min -70.47721615;
  }
  crs {
    Int32 actual_range -2147483647, -2147483647;
    String epsg_code "EPSG:4326";
    String grid_mapping_name "latitude_longitude";
    Float64 inverse_flattening 298.257223563;
    String ioos_category "Unknown";
    String long_name "http://www.opengis.net/def/crs/EPSG/0/4326";
    Float64 semi_major_axis 6378137.0;
  }
  platform {
    Int32 actual_range -2147483647, -2147483647;
    String definition "http://mmisw.org/ont/ioos/definition/stationID";
    String ioos_category "Unknown";
    String ioos_code "10591dwvs-cal";
    String long_name "USGS-CMG time-series data from the Sandwich Town Neck Beach, Massachusetts, 2016 project, mooring 1059 and package 10591dwvs-cal. Observations of Oceanographic, Atmospheric and Water-Quality for assesment of storm effects on overwash";
    String nodc_name "FIXED PLATFORM, MOORINGS";
    String short_name "USGS-CMG time-series data: SANDWICH2016 - 1059 - 10591dwvs-cal";
    String type "lead disk- dwave clamped on top";
  }
  time {
    UInt32 _ChunkSizes 269;
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.453414112e+9, 1.453735712e+9;
    String axis "T";
    String calendar "gregorian";
    String ioos_category "Time";
    String long_name "time of measurement";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  altitude {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "up";
    Float64 _FillValue -9999.9;
    Float64 actual_range -3.75, -3.75;
    String axis "Z";
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String grid_mapping "crs";
    String ioos_category "Location";
    String long_name "z of the sensor relative to the water surface";
    String positive "up";
    String standard_name "altitude";
    String units "m";
    Float64 valid_max -3.75;
    Float64 valid_min -3.75;
  }
  burst {
    UInt32 _ChunkSizes 269;
    Int32 _FillValue -32768;
    Int32 actual_range 1, 269;
    String ancillary_variables "platform";
    Float64 colorBarMaximum 269.0;
    Float64 colorBarMinimum 1.0;
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    String grid_mapping "crs";
    String ioos_category "Unknown";
    String long_name "Burst Number";
    Int32 missing_value -32768;
    String platform "platform";
    String units "count";
  }
  frequency {
    UInt32 _ChunkSizes 64;
    Float64 _FillValue -9999.99;
    Float64 actual_range 0.015625, 1.0;
    Float64 colorBarMaximum 1.0;
    Float64 colorBarMinimum 0.015625;
    String ioos_category "Unknown";
    String long_name "Frequency";
    String units "Hz";
  }
  pspec {
    UInt32 _ChunkSizes 269, 64;
    Int32 _FillValue -32768;
    Int32 actual_range 0, 4;
    Float64 colorBarMaximum 4.0;
    Float64 colorBarMinimum 0.0;
    String height_depth_units "m";
    Float64 initial_sensor_height 0.04;
    String ioos_category "Unknown";
    String long_name "Pressure derived Non-directional Wave Energy Spectrum (m^2/Hz)";
    Float64 maximum 3.88731102816815;
    Float64 minimum 4.6244879765756115e-5;
    String note "Use caution: all spectra are provisional";
    Float64 sensor_depth 3.75;
    String sensor_type "RBR Virtuouso D|wave";
    String serial_number "0";
    String units "m^2/Hz";
    Int32 valid_range 0, 100;
  }
 }
  NC_GLOBAL {
    String _NCProperties "version=1|netcdflibversion=4.5.0|hdf5libversion=1.10.1";
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "latitude, longitude, altitude, feature_type_instance";
    Float64 COMPOSITE 0.0;
    String contributor_name "C. Sherwood";
    String contributor_role "principalInvestigator";
    String Conventions "CF-1.6,ACDD-1.3, COARDS";
    String COORD_SYSTEM "GEOGRAPHIC + sample";
    String CREATION_DATE "06-Oct-2016";
    String creator_email "rsignell@usgs.gov";
    String creator_name "Rich Signell";
    String creator_phone "+1 (508) 548-8700";
    String creator_url "https://www.usgs.gov";
    String DATA_ORIGIN "USGS WHCMSC Sediment Transport Group";
    String DATA_SUBTYPE "MOORED";
    String date_created "2018-03-22T17:03:00Z";
    String date_issued "2018-03-22T17:03:00Z";
    String date_metadata_modified "2018-03-22T17:03:00Z";
    String date_modified "2018-03-22T17:03:00Z";
    Float64 DELTA_T 0.25;
    String Deployment_date "21-Jan-2016";
    Float64 DEPTH_CONST 0.0;
    String DESCRIPTION "at end of rock groin (RBR Virtuoso 55025)";
    Float64 DRIFTER 0.0;
    Float64 Easternmost_Easting -70.47721615;
    String EXPERIMENT "Sandwich Town Neck Beach January Storm";
    String featureType "TimeSeries";
    String freq_cutoff "Kz<0.40";
    String geospatial_bounds "POINT(-70.47721615 41.765921595)";
    String geospatial_bounds_crs "EPSG:4326";
    Float64 geospatial_lat_max 41.765921595;
    Float64 geospatial_lat_min 41.765921595;
    Float64 geospatial_lat_resolution 0;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -70.47721615;
    Float64 geospatial_lon_min -70.47721615;
    Float64 geospatial_lon_resolution 0;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max -3.75;
    Float64 geospatial_vertical_min -3.75;
    String geospatial_vertical_positive "up";
    String geospatial_vertical_resolution "0";
    String geospatial_vertical_units "m";
    String grid_mapping_epsg_code "EPSG:4326";
    Float64 grid_mapping_inverse_flattening 298.257223563;
    String grid_mapping_long_name "http://www.opengis.net/def/crs/EPSG/0/4326";
    String grid_mapping_name "latitude_longitude";
    Float64 grid_mapping_semi_major_axis 6378137.0;
    String history 
"Mon Nov  4 14:00:24 2019: ncatted -a project,global,a,c,, CMG_Portal SANDWICH2016/10591dwvs-cal.nc
created using DoNDwvs2ncNative_continuous_Kz0p4_em in Matlab 8.6.0.267246 (R2015b).,:use atmospherically corrected pressure data (\"P_1ac\") for input.:use calcNDwaves.m to find non-directional wave stats; detrend pressure signal, use Kz<0.4 to find freq cutoff. : apply f^-4 tail past freq cutoff up to 1hz.
2018-03-22T17:03:00Z - pyaxiom - File created using pyaxiom
2025-01-24T19:26:57Z (local files)
2025-01-24T19:26:57Z https://geoport.usgs.esipfed.org/tabledap/10591dwvs-cal.das";
    String id "10591dwvs-cal";
    String infoUrl "https://stellwagen.er.usgs.gov/";
    Float64 initial_instrument_height 0.04;
    String INST_TYPE "RBR Virtuouso D|wave";
    Float64 InstBurstInterval 1200.0;
    String InstBurstSampleRate "4 Hz";
    String institution "USGS Coastal and Marine Geology Program";
    String institution_url "https://woodshole.er.usgs.gov";
    String InstMode "continuous";
    Float64 InstSamplesPerBurst 4096.0;
    String InstSerial_Number "0";
    String keywords "burst, crs, feature_type_instance, frequency, latitude, longitude, platform, pspec, time, z";
    String keywords_vocabulary "GCMD Science Keywords";
    Float64 latitude 41.765921595;
    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 longitude -70.47721615;
    Float64 magnetic_variation -14.8;
    Float64 MOORING 1059;
    String naming_authority "gov.usgs.cmgp";
    Float64 NAVD88_elevation -2.0263;
    String ncei_template_version "NCEI_NetCDF_TimeSeries_Orthogonal_Template_v2.0";
    String NCO "netCDF Operators version 4.8.1 (Homepage = http://nco.sf.net, Code = https://github.com/nco/nco)";
    Float64 nfft 256.0;
    Float64 Northernmost_Northing 41.765921595;
    String original_filename "10591dwvs-cal.nc";
    String original_folder "SANDWICH2016";
    String platform_type "lead disk- dwave clamped on top";
    Float64 POS_CONST 0.0;
    String position_datum "NAD83(2011)";
    String PROJECT "USGS Coastal Marine Geology Program";
    String project "U.S. Geological Survey Oceanographic Time-Series Data, CMG_Portal";
    String project_summary "Observations of Oceanographic, Atmospheric and Water-Quality for assesment of storm effects on overwash";
    String project_title "Sandwich Town Neck Beach, Massachusetts, 2016";
    String publisher_email "emontgomery@usgs.gov";
    String publisher_name "Ellyn Montgomery";
    String publisher_phone "+1 (508) 548-8700";
    String publisher_url "https://www.usgs.gov";
    String Recovery_date "25-Jan-2015";
    String SciPi "C.Sherwood";
    String serial_number "055025";
    String source "USGS";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 41.765921595;
    String standard_name_vocabulary "CF Standard Name Table v29";
    String start_time "21-Jan-2016 22:08:31";
    String stop_time "25-Jan-2016 15:28:31";
    String subsetVariables "latitude, longitude, altitude, feature_type_instance";
    String summary "USGS-CMG time-series data from the Sandwich Town Neck Beach, Massachusetts, 2016 project, mooring 1059 and package 10591dwvs-cal. Observations of Oceanographic, Atmospheric and Water-Quality for assesment of storm effects on overwash";
    String time_coverage_duration "PT321600S";
    String time_coverage_end "2016-01-25T15:28:32Z";
    String time_coverage_start "2016-01-21T22:08:32Z";
    String title "USGS-CMG time-series data: SANDWICH2016 - 1059 - 10591dwvs-cal";
    Float64 WATER_DEPTH 3.79;
    String WATER_DEPTH_NOTE "(meters MLLW, based on surveyed elevation -2.03 m NAVD88 )";
    Float64 Westernmost_Easting -70.47721615;
  }
}

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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