Make A Graph

Dataset Title:	CHINCOTEAGUE - 10242Adws-a
Institution:	Coastal and Marine Hazards and Resources Program, U.S. Geological Survey (Dataset ID: CHINCOTEAGUE_10242Adws_a_nc)
Range:	longitude = -75.25237 to -75.25237°E, latitude = 38.09013 to 38.09013°N, time = 2014-08-13T17:35:42Z to 2014-10-14T14:05:42Z
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 {
  station_id {
    String actual_range 
"CHINCOTEAGUE_10242Adws_a_nc
CHINCOTEAGUE_10242Adws_a_nc";
    String cf_role "timeseries_id";
    String ioos_category "Identifier";
    String long_name "Station ID";
  }
  feature_type_instance {
    String ioos_category "Identifier";
    String long_name "Identifier for each feature type instance";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range 38.09013, 38.09013;
    String axis "Y";
    String ioos_category "Location";
    String long_name "sensor latitude";
    String standard_name "latitude";
    String units "degrees_north";
    Float64 valid_max 38.09013;
    Float64 valid_min 38.09013;
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 actual_range -75.25237, -75.25237;
    String axis "X";
    String ioos_category "Location";
    String long_name "sensor longitude";
    String standard_name "longitude";
    String units "degrees_east";
    Float64 valid_max -75.25237;
    Float64 valid_min -75.25237;
  }
  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 "Identifier";
    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 "Identifier";
    String ioos_code "10242Adws-a";
    String long_name "USGS-CMG time-series data from the Estuarine Physical Response to Storms (EPR), Chincoteague Bay, Maryland/Virginia, 2014-2015 project, mooring 1024 and package 10242Adws-a. Oceanographic, and water-quality observations made in in Chincoteague Bay, Maryland/Virginia, 2014-2015 to characterize the processes that affect sediment transport to tidal wetlands.";
    String nodc_name "FIXED PLATFORM, MOORINGS";
    String short_name "USGS-CMG time-series data: CHINCOTEAGUE - 1024 - 10242Adws-a";
    String type "fiberglass bottom lander";
  }
  time {
    UInt32 _ChunkSizes 1000;
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.407951342e+9, 1.413295542e+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";
  }
  z {
    Float64 actual_range -0.9400000000000001, -0.9400000000000001;
    String axis "Z";
    String FillValue "-9999.9";
    String grid_mapping "crs";
    String ioos_category "Other";
    String long_name "z of the sensor relative to the water surface";
    String positive "up";
    String standard_name "height";
    String units "m";
    Float64 valid_max -0.9400000000000001;
    Float64 valid_min -0.9400000000000001;
  }
  burst {
    UInt32 _ChunkSizes 1000;
    Float64 actual_range 132.0, 3101.0;
    String ancillary_variables "platform";
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    String FillValue "-32768.0";
    String grid_mapping "crs";
    String ioos_category "Other";
    String long_name "Burst Number";
    Float64 missing_value -32768.0;
    String platform "platform";
    String units "count";
  }
  frequency {
    UInt32 _ChunkSizes 42;
    Float64 actual_range 0.0234375, 0.984375;
    String FillValue "-9999.99";
    String ioos_category "Other";
    String long_name "Frequency";
    String units "Hz";
  }
  pspec {
    UInt32 _ChunkSizes 2970, 42;
    Float64 actual_range 2.841334113855558e-9, 0.07117794266421903;
    String FillValue "1e+35";
    String height_depth_units "m";
    Float64 initial_sensor_height 0.16;
    String ioos_category "Other";
    String long_name "Pressure derived Non-directional Wave Energy Spectrum (m^2/Hz)";
    Float64 maximum 0.07117794266421903;
    Float64 minimum 2.841334113855558e-9;
    String note "Use caution: all spectra are provisional";
    Float64 sensor_depth 0.9400000000000001;
    String sensor_type "RBR Virtuouso D|wave";
    Float64 serial_number 55108.0;
    String units "m^2/Hz";
    Float64 valid_range 0.0, 100.0;
  }
 }
  NC_GLOBAL {
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "station_id";
    Float64 COMPOSITE 0.0;
    String contributor_name "N. Ganju";
    String contributor_role "principalInvestigator";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String COORD_SYSTEM "GEOGRAPHIC + sample";
    String CREATION_DATE "26-Mar-2015";
    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 Sed Trans Group";
    String DATA_SUBTYPE "MOORED";
    String date_created "2017-04-11T21:31:00Z";
    String date_issued "2017-04-11T21:31:00Z";
    String date_metadata_modified "2017-04-11T21:31:00Z";
    String date_modified "2017-04-11T21:31:00Z";
    Float64 DELTA_T 1800.0;
    String Deployment_date "13-Aug-2014";
    Float64 DEPTH_CONST 0.0;
    String DESCRIPTION "site CB07 AQD, Pirate Is Shallow";
    Float64 DRIFTER 0.0;
    Float64 Easternmost_Easting -75.25237;
    String EXPERIMENT "Estuarine physical response";
    String experiment_name "CHINCOTEAGUE";
    String featureType "TimeSeries";
    String freq_cutoff "Kz<0.10";
    String geospatial_bounds "POINT(-75.25237 38.09013)";
    String geospatial_bounds_crs "EPSG:4326";
    Float64 geospatial_lat_max 38.09013;
    Float64 geospatial_lat_min 38.09013;
    Float64 geospatial_lat_resolution 0;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -75.25237;
    Float64 geospatial_lon_min -75.25237;
    Float64 geospatial_lon_resolution 0;
    String geospatial_lon_units "degrees_east";
    String geospatial_vertical_positive "up";
    String geospatial_vertical_resolution "0";
    String geospatial_vertical_units "meters";
    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 
"Fri Nov  1 20:16:51 2019: ncatted -a project,global,a,c,, CMG_Portal CHINCOTEAGUE/10242Adws-a.nc
created using DoNDwvs2ncNative in Matlab 8.3.0.532 (R2014a).,:use atmospherically corrected pressure data (\"P_1ac\") for input.:use calcNDwaves.m to find non-directional wave stats; detrend pressure signal, use Kz<0.1 to find freq cutoff. : apply f^-4 tail past freq cutoff up to 1hz.: used _FillValue for wave periods where Hs < 0.02 m.
2017-04-11T21:31:00Z - pyaxiom - File created using pyaxiom
2024-12-12T06:34:32Z (local files)
2024-12-12T06:34:32Z https://cmgds.marine.usgs.gov/tabledap/CHINCOTEAGUE_10242Adws_a_nc.das";
    String id "10242Adws-a";
    String infoUrl "https://cmgds.marine.usgs.gov/ocean-time-series/";
    Float64 initial_instrument_height 0.16;
    String INST_TYPE "RBR Virtuouso D|wave";
    Float64 InstBurstInterval 1800.0;
    String InstBurstSampleRate "6 Hz";
    String institution "Coastal and Marine Hazards and Resources Program, U.S. Geological Survey";
    String institution_url "https://woodshole.er.usgs.gov";
    String InstMode "wave";
    Float64 InstSamplesPerBurst 4096.0;
    Float64 InstSerial_Number 55108.0;
    String keywords "Earth Science > Oceans > Ocean Pressure > Water Pressure, Earth Science > Oceans > Ocean Temperature > Water Temperature, Earth Science > Oceans > Salinity/Density > Conductivity, Earth Science > Oceans > Salinity/Density > Salinity";
    String keywords_vocabulary "GCMD Science Keywords";
    Float64 latitude 38.09013;
    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 -75.25237;
    Float64 magnetic_variation -11.7;
    Float64 MOORING 1024;
    String naming_authority "gov.usgs.cmgp";
    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)";
    String NCProperties "version=1|netcdflibversion=4.4.1.1|hdf5libversion=1.8.17";
    Float64 nfft 256.0;
    Float64 Northernmost_Northing 38.09013;
    String original_filename "10242Adws-a.nc";
    String original_folder "CHINCOTEAGUE";
    String platform_type "Fiberglass bottom lander";
    Float64 POS_CONST 0.0;
    String PROJECT "USGS Coastal Marine Geology Program";
    String project "U.S. Geological Survey Oceanographic Time-Series Data, CMG_Portal";
    String project_summary "Oceanographic, and water-quality observations made in in Chincoteague Bay, Maryland/Virginia, 2014-2015 to characterize the processes that affect sediment transport to tidal wetlands.";
    String project_title " Estuarine Physical Response to Storms (EPR), Chincoteague Bay, Maryland/Virginia, 2014-2015";
    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 "14-Oct-2014";
    String SciPi "N. Ganju";
    Float64 serial_number 55108.0;
    String source "USGS";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 38.09013;
    String standard_name_vocabulary "CF-1.6";
    String start_time "13-Aug-2014 17:35:41";
    String stop_time "14-Oct-2014 14:05:41";
    String subsetVariables "station_id";
    String summary "CHINCOTEAGUE - 10242Adws-a";
    String time_coverage_duration "PT5344200S";
    String time_coverage_end "2014-10-14T14:05:42Z";
    String time_coverage_start "2014-08-13T17:35:42Z";
    String title "CHINCOTEAGUE - 10242Adws-a";
    Float64 VAR_FILL 1.0e+35;
    Float64 WATER_DEPTH 1.1;
    String WATER_DEPTH_NOTE "(meters), nominal depth";
    String WATER_MASS "Chincoteague Bay, VA/MD";
    Float64 Westernmost_Easting -75.25237;
  }
}

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.