Make A Graph

Dataset Title:	10.5066-P95AE74D - 11231Aea-a
Institution:	Coastal and Marine Hazards and Resources Program, U.S. Geological Survey (Dataset ID: 10_5066_P95AE74D_11231Aea_a_nc)
Range:	longitude = -70.06882 to -70.06882°E, latitude = 41.92636 to 41.92636°N, time = 2018-11-14T15:15:01Z to 2019-01-16T17:15:01Z
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 
"10_5066_P95AE74D_11231Aea_a_nc
10_5066_P95AE74D_11231Aea_a_nc";
    String cf_role "timeseries_id";
    String ioos_category "Identifier";
    String long_name "Station ID";
  }
  z {
    Float64 actual_range -1.581, -1.0639999999999998;
    String axis "Z";
    String geopotential_datum_name "NAVD88";
    String ioos_category "Other";
    String long_name "height relative to NAVD88";
    String positive "up";
    String standard_name "height";
    String units "m";
  }
  time {
    UInt32 _ChunkSizes 1024;
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.542208501e+9, 1.547658901e+9;
    String axis "T";
    String calendar "proleptic_gregorian";
    String ioos_category "Time";
    String long_name "time (UTC)";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  Tx_1211 {
    UInt32 _ChunkSizes 505;
    Float64 actual_range -5.74, 12.245999999999999;
    String epic_code "1211";
    String FillValue "nan";
    String ioos_category "Other";
    String long_name "Instrument Internal Temperature";
    Float64 maximum 12.245999999999999;
    Float64 minimum -5.74;
    String units "degree_C";
  }
  Ptch_1216 {
    UInt32 _ChunkSizes 505;
    Float64 actual_range -0.10999999999999974, 3.4499999999999993;
    String epic_code "1216";
    String FillValue "nan";
    String ioos_category "Other";
    String long_name "Instrument Pitch";
    Float64 maximum 3.4499999999999993;
    Float64 minimum -0.10999999999999974;
    String standard_name "platform_pitch";
    String units "degrees";
  }
  Roll_1217 {
    UInt32 _ChunkSizes 505;
    Float64 actual_range 1.61, 3.75;
    String epic_code "1217";
    String FillValue "nan";
    String ioos_category "Other";
    String long_name "Instrument Roll";
    Float64 maximum 3.75;
    Float64 minimum 1.61;
    String standard_name "platform_roll";
    String units "degrees";
  }
  AGC_1202 {
    UInt32 _ChunkSizes 1, 70;
    Float64 actual_range 0.0, 1023.0;
    String epic_code "1202";
    String FillValue "nan";
    String ioos_category "Other";
    String long_name "Average Echo Intensity";
    Float64 maximum 1023.0;
    Float64 minimum 0.0;
    String units "counts";
  }
  burst {
    UInt32 _ChunkSizes 1010;
    Int32 actual_range 10, 6066;
    String ioos_category "Other";
    String long_name "Burst number";
    Int32 maximum 6066;
    Int32 minimum 10;
    String units "1";
  }
  bindist {
    Float64 actual_range 0.004, 0.521;
    String ioos_category "Other";
    String long_name "bin(center) distance from transducer";
    Float64 maximum 0.521;
    Float64 minimum 0.004;
    String note "Distance is along profile from instrument head to center of bin";
    String positive "DOWN";
    String units "m";
  }
  bin_height {
    Float64 actual_range -0.181, 0.336;
    String FillValue "nan";
    String ioos_category "Other";
    String long_name "bin(center) distance from seafloor";
    Float64 maximum 0.336;
    Float64 minimum -0.181;
    String note "Distance is along profile from seafloor to center of bin. Calculated as initial instrument height - bin(center) distance from transducer based on 1500 m/s sound vel.";
    String positive "up";
    String units "m";
  }
  brange {
    UInt32 _ChunkSizes 505;
    Float64 actual_range 0.313, 0.543;
    String FillValue "nan";
    String ioos_category "Other";
    String long_name "sensor range to boundary";
    Float64 maximum 0.543;
    Float64 minimum 0.313;
    String note 
"Calculated using adjusted speed of sound2023-03-02T18:40:42.265071+00:00: Values filled where data increases or decreases by more than 0.02 units in a single time step. 
2023-03-02T18:40:42.269075+00:00: Data clipped using bad_ens values of ['2019-01-13 16:00', '2019-01-13 16:31']. 
2023-03-02T18:40:42.273070+00:00: Values filled where less than 0.300000 units. 
2023-03-02T18:40:42.275069+00:00: Values filled where greater than 0.600000 units. 
";
    String standard_name "height_above_sea_floor";
    String units "m";
  }
  cor_bin_height {
    UInt32 _ChunkSizes 1, 70;
    Float64 actual_range -0.18, 0.334;
    String FillValue "nan";
    String ioos_category "Other";
    String long_name "corrected bin(center) distance from seafloor";
    Float64 maximum 0.334;
    Float64 minimum -0.18;
    String note "Distance is along profile from seafloor to center of bin based on adjusted sound vel.";
    String positive "up";
    String units "m";
  }
  seabed_elevation {
    UInt32 _ChunkSizes 505;
    Float64 actual_range -1.603, -1.373;
    String FillValue "nan";
    String ioos_category "Other";
    String long_name "seafloor height referenced to NAVD88 datum";
    Float64 maximum -1.373;
    Float64 minimum -1.603;
    String note 
"Corrected brange from adjusted sound speed and referenced to NAVD88 datum2023-03-02T18:40:42.279076+00:00: Data clipped using bad_ens values of ['2019-01-13 16:00', '2019-01-13 16:31']. 
2023-03-02T18:40:42.283523+00:00: Values filled using brange mask.
";
    String positive "up";
    String standard_name "height_above_geopotential_datum";
    String units "m";
  }
  depth_m {
    Float64 actual_range 1.264, 1.7810000000000001;
    String ioos_category "Other";
    String long_name "depth below mean sea level";
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range 41.92636, 41.92636;
    String axis "Y";
    Int32 epic_code 500;
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 actual_range -70.06882, -70.06882;
    String axis "X";
    Int32 epic_code 502;
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
 }
  NC_GLOBAL {
    Float64 average_salinity 28.4;
    String average_salinity_note "averaged from exo, PSU";
    String basefile "ECHO20181114_130000_217_thresh50";
    Int32 Bin_count 70;
    Float64 Bin_size_m 0.0075;
    String brange_bad_ens 
"2019-01-13 16:00
2019-01-13 16:31";
    Float64 brange_max 0.6;
    Float64 brange_maxabs_diff 0.02;
    Float64 brange_min 0.3;
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "station_id";
    Int32 ClockError 0;
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String COORD_SYSTEM "GEOGRAPHIC";
    String creator_url "https://www.usgs.gov";
    String DATA_ORIGIN "USGS WHCMSC Coastal and Estuarine Dynamics Group";
    String DATA_SUBTYPE "MOORED";
    Float64 Deadzone_m 0.15;
    Int32 DELTA_T 900;
    String Deployment_date "2018-11-14 15:00:00";
    Float64 DEPTH_CONST 0.0;
    String DESCRIPTION "Gut Flank Deep site, Herring River, Wellfleet, MA";
    String DeviceID "000037 EA400 USB/SDCard + Alfat Type";
    Float64 DRIFTER 0.0;
    Float64 Easternmost_Easting -70.06882;
    String EXPERIMENT "NRPP Cape Cod";
    String experiment_name "10.5066-P95AE74D";
    String FAN "2018-058-FA, 2019-005-FA, 2019-013-FA, 2019-015-FA, 2019-020-FA, 2019-026-FA, 2019-029-FA, 2019-030-FA, 2019-035-FA, 2019-039-FA, 2019-040-FA";
    String featureType "TimeSeries";
    String filename "11231Aea";
    String geopotential_datum_name "NAVD88";
    String geopotential_datum_note "(meters), Elevation at seabed from RTK";
    Float64 geospatial_lat_max 41.92636;
    Float64 geospatial_lat_min 41.92636;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -70.06882;
    Float64 geospatial_lon_min -70.06882;
    String geospatial_lon_units "degrees_east";
    Int32 good_bins 0, 70;
    String good_dates 
"2018-11-14 15:15
2019-01-16 17:28";
    Float64 height_above_geopotential_datum -1.4;
    String history 
"2023-03-02T18:40:12.059834+00:00: Processed using eofe.py with stglib .0.6.0+23.g16c7308, xarray 2022.3.0, NumPy 1.22.3, netCDF4 1.5.8, Python 3.10.4.
2023-03-02T18:40:32.971287+00:00: Data clipped using good_dates of ['2018-11-14 15:15', '2019-01-16 17:28'].
2023-03-02T18:40:33.065317+00:00: Trimmed altimeter data using Altimeter_m = 0.
2023-03-02T18:40:33.067270+00:00: Removed extra bins from altimeter data using good_bins attribute.
2023-03-02T18:40:33.085306+00:00: Adjusted sound velocity calculated using svel(s,t,p) from seawater toolbox (https://pythonhosted.org/seawater/eos80.html#seawater.eos80.svel). Svel inputs: Salinity (s) from average salinity of %s PSU, temperature (t) from ea400 internal temperature measurements, pressure (p) from raw ea400 altitude measurements. 
2023-03-02T18:40:33.706817+00:00: add seabed_elevation using speed of sound corrected brange and ref datum

2024-12-12T06:21:47Z (local files)
2024-12-12T06:21:47Z https://cmgds.marine.usgs.gov/tabledap/10_5066_P95AE74D_11231Aea_a_nc.das";
    String infoUrl "https://cmgds.marine.usgs.gov/ocean-time-series/";
    Float64 initial_instrument_height 0.34;
    String initial_instrument_height_note "From seabed";
    String institution "Coastal and Marine Hazards and Resources Program, U.S. Geological Survey";
    String institution_url "https://woodshole.er.usgs.gov";
    String instrument_type "EofE ECHOLOGGER EA400 profiling altimeter";
    Float64 Interval_between_series_sec 900.0;
    Float64 latitude 41.92636;
    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.";
    Float64 longitude -70.06882;
    Float64 magnetic_variation -14.8;
    String MOORING "1123A";
    String NCProperties "version=2,netcdf=4.8.1,hdf5=1.12.1";
    Float64 Northernmost_Northing 41.92636;
    Float64 Offset_m 0.0;
    String orientation "DOWN";
    Int32 OutputMode 2;
    String platform_type "Spyder Frame";
    Float64 POS_CONST 0.0;
    String PROJECT "USGS Coastal and Marine Hazards and Resources Program";
    String publisher_url "https://www.usgs.gov";
    Float64 Pulse_period_sec 1.0;
    Float64 PulseLength_microsec 20.0;
    Int32 Pulses_in_series_num 10;
    Float64 Range_m 1.0;
    String Recovery_date "2019-01-16 17:28:00";
    String SciPi "N. Ganju";
    String seabed_elevation_bad_ens 
"2019-01-13 16:00
2019-01-13 16:31";
    String seabed_elevation_mask "brange";
    String serial_number "000037";
    Float64 SoundSpeed_mps 1500.0;
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 41.92636;
    String start_time "2018-11-14T15:15:01.000000000";
    String stop_time "2019-01-16T17:15:01.000000000";
    String subsetVariables "station_id";
    String summary "10.5066-P95AE74D - 11231Aea-a";
    Int32 Threshold_percent 50;
    String time_coverage_end "2019-01-16T17:15:01Z";
    String time_coverage_start "2018-11-14T15:15:01Z";
    String title "10.5066-P95AE74D - 11231Aea-a";
    String trim_method 
"altitude
bin range";
    Float64 TVG_Gain_dB 0.0;
    Int32 TVG_Mode 1;
    Float64 TVG_Slope_dBkm 540.0;
    Float64 Tx_Frequency_Hz 450000.0;
    Float64 VAR_FILL NaN;
    Float64 WATER_DEPTH 1.26;
    String WATER_DEPTH_NOTE "(meters), Local Mean Sea Level estimated using vDatum with NAVD88 (GEOID12B) from RTK and positive down convention.";
    String WATER_MASS "Herring River, Wellfleet Harbor";
    Float64 Westernmost_Easting -70.06882;
  }
}

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.