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Dataset Title:	USGS-CMG time-series data: PV_SHELF07 - 850 - 8502bt-a
Institution:	USGS Coastal and Marine Geology Program (Dataset ID: 8502bt-a)
Range:	longitude = -118.3034 to -118.3034°E, latitude = 33.69567 to 33.69567°N, altitude = -17.4 to -17.4m, time = 2007-12-05T03:21:00Z to 2008-04-03T00:18:00Z
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:

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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";
    Float32 actual_range 33.69567, 33.69567;
    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";
    Float32 valid_max 33.695667;
    Float32 valid_min 33.695667;
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -118.3034, -118.3034;
    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";
    Float32 valid_max -118.30338;
    Float32 valid_min -118.30338;
  }
  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 "8502bt-a";
    String long_name "USGS-CMG time-series data from the Palos Verdes Shelf 2007 project, mooring 850 and package 8502bt-a. Follow-up observations to evaluate how often coastal ocean processes move the DDT contaminated sediments near the White Point ocean outfalls.";
    String nodc_name "FIXED PLATFORM, MOORINGS";
    String short_name "USGS-CMG time-series data: PV_SHELF07 - 850 - 8502bt-a";
    String type "subsurface";
  }
  time {
    UInt32 _ChunkSizes 1000;
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.19682486e+9, 1.20718188e+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";
    Float32 _FillValue -9999.9;
    Float32 actual_range -17.4, -17.4;
    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";
    Float32 valid_max -17.4;
    Float32 valid_min -17.4;
  }
  T_28 {
    UInt32 _ChunkSizes 1000;
    Float32 _FillValue 1.0e+35;
    Float32 actual_range 10.0975, 15.6882;
    String ancillary_variables "platform";
    Float64 colorBarMaximum 15.688202;
    Float64 colorBarMinimum 10.097504;
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 20;
    String FORTRAN_format "f10.2";
    String generic_name "temp";
    String grid_mapping "crs";
    Float64 initial_sensor_height 15.0;
    String ioos_category "Unknown";
    String long_name "Water Temperature";
    Float32 missing_value 1.0e+35;
    String platform "platform";
    Float64 sensor_depth 17.4;
    String serial_number "14245";
    String standard_name "sea_water_temperature";
    String units "degree_Celsius";
  }
 }
  NC_GLOBAL {
    String _NCProperties "version=1|netcdflibversion=4.4.1.1|hdf5libversion=1.8.17";
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "latitude, longitude, altitude, feature_type_instance";
    Float64 clock_error 5.0;
    String clock_error_units "Seconds";
    Float32 COMPOSITE 0.0;
    String contributor_name "M. Noble";
    String contributor_role "principalInvestigator";
    String Conventions "CF-1.6,ACDD-1.3, COARDS";
    String COORD_SYSTEM "GEOGRAPHIC";
    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_CMNT "PV07 B7 SubSurface Mooring 2nd Branker T";
    String DATA_ORIGIN "USGS WHSC and PSC Sed Trans Groups";
    String DATA_SUBTYPE "MOORED";
    String DATA_TYPE "TIME";
    String date_created "2017-04-11T22:54:00Z";
    String date_issued "2017-04-11T22:54:00Z";
    String date_metadata_modified "2017-04-11T22:54:00Z";
    String date_modified "2017-04-11T22:54:00Z";
    String DELTA_T "180";
    String Deployment_date "05-Dec-2007 03:20:00";
    Float32 DEPTH_CONST 0.0;
    String DESCRIPT "Currents, temp profiles, bottom stress, SSC, sed. traps, and PCB samplers, 15, 30, and 60 m, PV Shelf";
    Float32 DRIFTER 0.0;
    Float64 Easternmost_Easting -118.3034;
    String EXPERIMENT "2007-2008 PV BBL Experiment";
    String featureType "TimeSeries";
    String geospatial_bounds "POINT(-118.30338287353516 33.6956672668457)";
    String geospatial_bounds_crs "EPSG:4326";
    Float64 geospatial_lat_max 33.69567;
    Float64 geospatial_lat_min 33.69567;
    Float64 geospatial_lat_resolution 0;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -118.3034;
    Float64 geospatial_lon_min -118.3034;
    Float64 geospatial_lon_resolution 0;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max -17.4;
    Float64 geospatial_vertical_min -17.4;
    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 
"Fri Nov  1 20:23:59 2019: ncatted -a project,global,a,c,, CMG_Portal PV_SHELF07/8502bt-a.nc
Processed by proc8502bt on 19-May-2010 14:06:30
2017-04-11T22:54:00Z - pyaxiom - File created using pyaxiom
2024-09-15T00:20:41Z (local files)
2024-09-15T00:20:41Z https://geoport.usgs.esipfed.org/tabledap/8502bt-a.das";
    String id "8502bt-a";
    String infoUrl "https://stellwagen.er.usgs.gov/";
    Float64 inst_depth 17.4;
    String INST_TYPE "Branker TR-1060 Temperature";
    String institution "USGS Coastal and Marine Geology Program";
    Float64 instrument_depth 17.4;
    Float32 instrument_serial_number 14245.0;
    String keywords "crs, feature_type_instance, latitude, longitude, platform, T_28, time, z";
    String keywords_vocabulary "GCMD Science Keywords";
    Float32 latitude 33.695667;
    String LatLonDatum "NAD83";
    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.";
    Float32 longitude -118.30338;
    String LonLatDatum "NAD83";
    Float64 magnetic_variation 12.9;
    Float64 MOORING 850;
    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)";
    Float64 Northernmost_Northing 33.69567;
    String original_filename "8502bt-a.nc";
    String original_folder "PV_SHELF07";
    String platform_type "SubSurface";
    Float32 POS_CONST 0.0;
    String PROJECT "USGS/EPA Palos Verdes";
    String project "U.S. Geological Survey Oceanographic Time-Series Data, CMG_Portal";
    String project_summary "Follow-up observations to evaluate how often coastal ocean processes move the DDT contaminated sediments near the White Point ocean outfalls.";
    String project_title "Palos Verdes Shelf 2007";
    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 "03-Apr-2008 00:20:00";
    Float64 samp_rate 180.0;
    String SciPi "C.Sherwood, M. Noble, J. Xu, K Rosenberger";
    String source "USGS";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 33.69567;
    String standard_name_vocabulary "CF Standard Name Table v29";
    String start_time "05-Dec-2007 03:21:00";
    String stop_time "03-Apr-2008 00:18:00";
    String subsetVariables "latitude, longitude, altitude, feature_type_instance";
    String summary "USGS-CMG time-series data from the Palos Verdes Shelf 2007 project, mooring 850 and package 8502bt-a. Follow-up observations to evaluate how often coastal ocean processes move the DDT contaminated sediments near the White Point ocean outfalls.";
    String time_coverage_duration "PT10357020S";
    String time_coverage_end "2008-04-03T00:18:00Z";
    String time_coverage_start "2007-12-05T03:21:00Z";
    String title "USGS-CMG time-series data: PV_SHELF07 - 850 - 8502bt-a";
    String VAR_DESC "T";
    Float64 VAR_FILL 1.0e+35;
    Float64 WATER_DEPTH 32.4;
    String WATER_DEPTH_NOTE "from ships navigation at deployment ";
    Float64 Westernmost_Easting -118.3034;
  }
}

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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