Make A Graph

Dataset Title:	Data produced by Stream Engine version 1.20.2 for CP01CNSM-MFD35-02-PRESFB000- recovered_inst-presf_abc_tide_measurement_recovered
Institution:	Ocean Observatories Initiative (Dataset ID: CP01CNSM-MFD35-02-PRESFB000-presf_abc_tide_measurement_recovered-recovered_inst-deployment0002)
Range:	time = 2014-12-13T19:03:30Z to 2014-12-15T20:03:10Z
Information:	Summary \| License \| Metadata \| Background \| Data Access Form

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Constraints	Optional Constraint #1		Optional Constraint #2

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 {
  obs {
    Int32 _ChunkSizes 1024;
    Int32 actual_range 0, 49;
    String ioos_category "Unknown";
  }
  preferred_timestamp {
    Int32 _ChunkSizes 50, 18;
    String comment "Timestamp preferred as official record.";
    String ioos_category "Unknown";
    String long_name "Preferred Timestamp";
  }
  presf_tide_pressure_number {
    Int32 _ChunkSizes 50;
    Int32 _FillValue -9999999;
    Int32 actual_range 629953, 8829457;
    String comment "Seafloor Pressure tide measurement, from the Seafloor Pressure family of instruments (PRESF), used to calculate the OOI Level 1 Seafloor Pressure (SFLPRES) core data product.";
    String coordinates "time lat lon";
    String ioos_category "Unknown";
    String long_name "Seafloor Pressure Number";
    Int32 precision 0;
    String units "counts";
  }
  presf_tide_pressure {
    String ioos_category "Unknown";
  }
  presf_tide_temperature {
    String ioos_category "Unknown";
  }
  presf_tide_temperature_qc_results {
    String ioos_category "Unknown";
  }
  ingestion_timestamp {
    Int32 _ChunkSizes 50;
    Float64 actual_range 1.62280768e+9, 1.62280768e+9;
    String calendar "proleptic_gregorian";
    String comment "The NTP Timestamp for when the granule was ingested";
    String ioos_category "Time";
    String long_name "Ingestion Timestamp, UTC";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  presf_tide_pressure_qc_executed {
    String ioos_category "Unknown";
  }
  port_timestamp {
    Int32 _ChunkSizes 50;
    Float64 actual_range -2.2089888e+9, -2.2089888e+9;
    String calendar "proleptic_gregorian";
    String comment "Port timestamp, UTC";
    String ioos_category "Time";
    String long_name "Port Timestamp, UTC";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  provenance {
    Int32 _ChunkSizes 50, 36;
    String coordinates "time lat lon";
    String ioos_category "Unknown";
    String name "provenance";
  }
  deployment {
    Int32 _ChunkSizes 50;
    Int32 actual_range 2, 2;
    String ioos_category "Unknown";
    String name "deployment";
  }
  id {
    Int32 _ChunkSizes 50, 36;
    String ioos_category "Unknown";
    String name "id";
  }
  presf_tide_pressure_qc_results {
    String ioos_category "Unknown";
  }
  internal_timestamp {
    Int32 _ChunkSizes 50;
    Float64 actual_range 1.41849741e+9, 1.41867379e+9;
    String calendar "proleptic_gregorian";
    String comment "Internal timestamp, UTC";
    String ioos_category "Time";
    String long_name "Internal Timestamp, UTC";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  presf_tide_temperature_number {
    Int32 _ChunkSizes 50;
    Int32 _FillValue -9999999;
    Int32 actual_range 19369, 25046;
    String comment "Seafloor Pressure family of instruments (PRESF) temperature measurement near the sensor.";
    String coordinates "time lat lon";
    String ioos_category "Unknown";
    String long_name "Seawater Temperature Number";
    Int32 precision 0;
    String units "counts";
  }
  presf_time {
    Int32 _ChunkSizes 50;
    Float64 actual_range 1.4184975e+9, 1.4186739e+9;
    String calendar "proleptic_gregorian";
    String comment "Time in seconds since 2000-01-01.";
    String coordinates "time lat lon";
    String ioos_category "Time";
    String long_name "Time, UTC";
    Int32 precision 0;
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  time {
    Int32 _ChunkSizes 50;
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.41849741e+9, 1.41867379e+9;
    String axis "T";
    String calendar "gregorian";
    String ioos_category "Time";
    String long_name "Time";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  driver_timestamp {
    Int32 _ChunkSizes 50;
    Float64 actual_range 1.62280768e+9, 1.62280768e+9;
    String calendar "proleptic_gregorian";
    String comment "Driver timestamp, UTC";
    String ioos_category "Time";
    String long_name "Driver Timestamp, UTC";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  presf_tide_temperature_qc_executed {
    String ioos_category "Unknown";
  }
 }
  NC_GLOBAL {
    String AssetManagementRecordLastModified "2022-09-02T13:10:28.305000";
    String AssetUniqueID "CGINS-PRESFB-01386";
    String cdm_data_type "Other";
    String collection_method "recovered_inst";
    String Conventions "CF-1.6, NCCSV-1.0";
    String creator_name "Ocean Observatories Initiative";
    String creator_url "http://oceanobservatories.org/";
    String date_created "2022-09-15T04:31:56.291Z";
    String date_modified "2022-09-15T04:31:56.291Z";
    String defaultDataQuery "presf_tide_pressure_number,presf_tide_pressure,presf_tide_temperature,presf_tide_temperature_number,presf_time,time&time>=max(time)-1days";
    String Description "Seafloor Pressure: PRESF Series B";
    String feature_Type "point";
    String FirmwareVersion "7.2";
    Float64 geospatial_lat_resolution 0.1;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_resolution 0.1;
    String geospatial_lon_units "degrees_east";
    String geospatial_vertical_positive "down";
    Float64 geospatial_vertical_resolution 0.1;
    String geospatial_vertical_units "meters";
    String history 
"2022-09-15T04:31:56.290577 generated from Stream Engine
2024-11-21T12:28:04Z http://oceanobservatories.org/
2024-11-21T12:28:04Z http://erddap-goldcopy.dataexplorer.oceanobservatories.org/tabledap/CP01CNSM-MFD35-02-PRESFB000-presf_abc_tide_measurement_recovered-recovered_inst-deployment0002.das";
    String id "CP01CNSM-MFD35-02-PRESFB000-recovered_inst-presf_abc_tide_measurement_recovered";
    String infoUrl "http://oceanobservatories.org/";
    String institution "Ocean Observatories Initiative";
    Float64 lat 40.1339;
    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 lon -70.7789;
    String Manufacturer "Sea-Bird Electronics";
    String Metadata_Conventions "Unidata Dataset Discovery v1.0";
    String Mobile "False";
    String ModelNumber "SBE 26plus";
    String naming_authority "org.oceanobservatories";
    String nodc_template_version "NODC_NetCDF_TimeSeries_Orthogonal_Template_v1.1";
    String node "MFD35";
    String Notes "Not specified.";
    String Owner "Not specified.";
    String processing_level "L2";
    String project "Ocean Observatories Initiative";
    String publisher_name "Ocean Observatories Initiative";
    String publisher_url "http://oceanobservatories.org/";
    String references "More information can be found at http://oceanobservatories.org/";
    String RemoteResources "[]";
    String requestUUID "47efef86-3635-4ea8-a9b6-7ceec8a1c39b";
    String sensor "02-PRESFB000";
    String SerialNumber "26P76848-1386";
    String ShelfLifeExpirationDate "Not specified.";
    String SoftwareVersion "Not specified.";
    String source "CP01CNSM-MFD35-02-PRESFB000-recovered_inst-presf_abc_tide_measurement_recovered";
    String sourceUrl "http://oceanobservatories.org/";
    String standard_name_vocabulary "NetCDF Climate and Forecast (CF) Metadata Convention Standard Name Table 29";
    String stream "presf_abc_tide_measurement_recovered";
    String subsite "CP01CNSM";
    String summary "Dataset Generated by Stream Engine from Ocean Observatories Initiative";
    String time_coverage_end "2014-12-15T20:03:10Z";
    String time_coverage_resolution "P3528.00S";
    String time_coverage_start "2014-12-13T19:03:30Z";
    String title "Data produced by Stream Engine version 1.20.2 for CP01CNSM-MFD35-02-PRESFB000-recovered_inst-presf_abc_tide_measurement_recovered";
    String uuid "47efef86-3635-4ea8-a9b6-7ceec8a1c39b";
  }
}

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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