Make A Graph

Dataset Title:	10.5066-P1CRRF88 - 11711hwlb-a
Institution:	Coastal and Marine Hazards and Resources Program, U.S. Geological Survey (Dataset ID: 10_5066_P1CRRF88_11711hwlb_a_nc)
Range:	longitude = -87.468 to -87.468°E, latitude = 20.2066 to 20.2066°N, time = 2018-03-26T05:00:00Z to 2018-08-01T20:00:00Z
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Subset \| Data Access Form \| Files

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Server-side Functions

distinct()

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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_P1CRRF88_11711hwlb_a_nc
10_5066_P1CRRF88_11711hwlb_a_nc";
    String cf_role "timeseries_id";
    String ioos_category "Identifier";
    String long_name "Station ID";
  }
  time {
    UInt32 _ChunkSizes 1024;
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.5220404e+9, 1.5331536e+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";
  }
  BPR_915 {
    UInt32 _ChunkSizes 512;
    Float64 actual_range 1005.3900000000001, 1023.8;
    Int32 epic_code 915;
    String FillValue "nan";
    String ioos_category "Other";
    String long_name "Barometric pressure";
    Float64 maximum 1023.8;
    Float64 minimum 1005.3900000000001;
    String standard_name "air_pressure";
    String units "mbar";
  }
  T_21 {
    UInt32 _ChunkSizes 494;
    Float64 actual_range 15.76, 36.837;
    Int32 epic_code 21;
    String FillValue "nan";
    String ioos_category "Other";
    String long_name "Air Temperature";
    Float64 maximum 36.837;
    Float64 minimum 15.76;
    String standard_name "air_temperature";
    String units "degree_C";
  }
  z {
    Int32 actual_range 15, 15;
    String ioos_category "Other";
    String long_name "height relative to sea bed";
    String positive "up";
    String standard_name "height";
    String units "m";
  }
  depth_m {
    Float64 actual_range -15.0, -15.0;
    String axis "Z";
    String ioos_category "Other";
    String long_name "depth below geoid";
    String positive "down";
    String standard_name "depth_below_geoid";
    String units "m";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range 20.2066, 20.2066;
    String axis "Y";
    Int32 epic_code 500;
    String FillValue "nan";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 actual_range -87.468, -87.468;
    String axis "X";
    Int32 epic_code 502;
    String FillValue "nan";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
 }
  NC_GLOBAL {
    String basefile "Barometer_w_RainGauge";
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "station_id";
    Int32 ClockError -18000;
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String COORD_SYSTEM "GEOGRAPHIC";
    String creator_url "https://www.usgs.gov";
    String DATA_CMNT "Co-located rain gauge deployment failed";
    String DATA_ORIGIN "USGS WHCMSC Coastal and Estuarine Dynamics Group";
    String DATA_SUBTYPE "MOORED";
    Int32 DELTA_T 900;
    String Deployment_date "2018-03-25 22:00";
    Float64 DEPTH_CONST 0.0;
    String DESCRIPTION "Ox Bel Ha Cave System, Cenote Bang, Flooded cave, above surface";
    Float64 DRIFTER 0.0;
    Float64 Easternmost_Easting -87.468;
    String EXPERIMENT "CAVE MX";
    String experiment_name "10.5066-P1CRRF88";
    String FAN "2018-031-FA";
    String featureType "TimeSeries";
    String filename "11711hwlb";
    Float64 geospatial_lat_max 20.2066;
    Float64 geospatial_lat_min 20.2066;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -87.468;
    Float64 geospatial_lon_min -87.468;
    String geospatial_lon_units "degrees_east";
    String history 
"2024-03-06T18:13:17.601719+00:00: Processed using hobo.py with stglib 0.15.0, xarray 2024.2.0, NumPy 1.26.4, netCDF4 1.6.5, Python 3.11.8.
2024-03-06T18:13:17.606393+00:00: Time shifted by 18000 s from ClockError.
2024-03-06T18:13:19.876913+00:00: Data clipped using Deployment_date of 2018-03-25 22:00 and Recovery_date of 2018-08-01 20:00.

2024-12-12T06:32:18Z (local files)
2024-12-12T06:32:18Z https://cmgds.marine.usgs.gov/tabledap/10_5066_P1CRRF88_11711hwlb_a_nc.das";
    String infoUrl "https://cmgds.marine.usgs.gov/ocean-time-series/";
    Int32 initial_instrument_height 15;
    String initial_instrument_height_note "From ground level";
    String institution "Coastal and Marine Hazards and Resources Program, U.S. Geological Survey";
    String institution_url "https://woodshole.er.usgs.gov";
    String instrument_type "hwlb";
    Float64 latitude 20.2066;
    String LatLonDatum "WGS84";
    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 -87.468;
    Float64 magnetic_variation -1.39;
    String MOORING "1171";
    String NCProperties "version=2,netcdf=4.9.2,hdf5=1.14.3";
    Float64 Northernmost_Northing 20.2066;
    String platform_type "rooftop";
    Float64 POS_CONST 0.0;
    String PROJECT "USGS Coastal and Marine Hazards and Resources Program";
    String publisher_url "https://www.usgs.gov";
    String Recovery_date "2018-08-01 20:00";
    String SciPi "N. Ganju";
    Float64 sea_floor_depth_below_geoid 0.0;
    String serial_number "10559361";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 20.2066;
    String start_time "2018-03-26T05:00:00.000000000";
    String stop_time "2018-08-01T20:00:00.000000000";
    String subsetVariables "station_id";
    String summary "10.5066-P1CRRF88 - 11711hwlb-a";
    String time_coverage_end "2018-08-01T20:00:00Z";
    String time_coverage_start "2018-03-26T05:00:00Z";
    String title "10.5066-P1CRRF88 - 11711hwlb-a";
    Float64 VAR_FILL NaN;
    String vert_dim "depth";
    Float64 WATER_DEPTH 0.0;
    String WATER_DEPTH_NOTE "(meters), instrument deployed above ground level";
    String WATER_MASS "Ox Bel Ha Cave System, Cenote Bang, Tulum, MX";
    Float64 Westernmost_Easting -87.468;
  }
}

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.