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Dataset Title:  Data produced by Stream Engine version 1.15.0 for CE02SHSM-SBD12-05-WAVSSA000-
telemetered-wavss_a_dcl_non_directional
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Institution:  Ocean Observatories Initiative   (Dataset ID: CE02SHSM-SBD12-05-WAVSSA000-wavss_a_dcl_non_directional-telemetered-deployment0007)
Range: time = 2018-04-03T02:23:00Z to 2018-09-25T12:52:20Z
Information:  Summary ? | License ? | Metadata | Background (external link) | Data Access Form
 
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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:

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  obs {
    Int32 _ChunkSizes 1024;
    Int32 actual_range 0, 706;
    String ioos_category "Unknown";
  }
  serial_number {
    Int32 _ChunkSizes 672, 5;
    String comment "Serial Number";
    String coordinates "time lat lon";
    String ioos_category "Unknown";
    String long_name "Serial Number";
    Int32 precision 0;
    String units "1";
  }
  preferred_timestamp {
    Int32 _ChunkSizes 672, 14;
    String comment "Timestamp preferred as official record.";
    String ioos_category "Unknown";
    String long_name "Preferred Timestamp";
    String units "1";
  }
  provenance {
    Int32 _ChunkSizes 672, 36;
    String coordinates "time lat lon";
    String ioos_category "Unknown";
    String name "provenance";
  }
  ingestion_timestamp {
    Int32 _ChunkSizes 672;
    Float64 actual_range 1.52328179e+9, 1.5378871e+9;
    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";
  }
  psd_non_directional {
    Int32 _ChunkSizes 672, 123;
    Float32 _FillValue -9999999.0;
    Float32 actual_range 2.389e-6, 121.2;
    String comment "Power spectral density values for non-directional spectra in m2 Hz-1.";
    String coordinates "time lat lon";
    String data_product_identifier "WAVSTAT-PND_L0";
    String ioos_category "Unknown";
    String long_name "PSD Non Directional";
    Int32 precision 4;
    String units "m2 Hz-1";
  }
  port_timestamp {
    Int32 _ChunkSizes 672;
    Float64 actual_range 1.52272218e+9, 1.53787994e+9;
    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";
  }
  time {
    Int32 _ChunkSizes 672;
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.52272218e+9, 1.53787994e+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";
  }
  dcl_controller_timestamp {
    Int32 _ChunkSizes 672, 5;
    String comment "Timestamp from the DCL controller";
    String ioos_category "Unknown";
    String long_name "DCL Controller Timestamp";
    Int32 precision 0;
    String units "1";
  }
  initial_frequency {
    Int32 _ChunkSizes 672;
    Float32 _FillValue -9999999.0;
    Float32 actual_range 0.03, 0.03;
    String comment "initial frequency";
    String coordinates "time lat lon";
    String ioos_category "Unknown";
    String long_name "Initial Frequency";
    Int32 precision 4;
    String units "Hz";
  }
  wavss_array {
    Int32 actual_range 0, 122;
    String ioos_category "Unknown";
  }
  time_string {
    Int32 _ChunkSizes 672, 5;
    String comment "Measurement time in string format";
    String coordinates "time lat lon";
    String ioos_category "Unknown";
    String long_name "Measurement Time, UTC";
    String units "1";
  }
  internal_timestamp {
    Int32 _ChunkSizes 672;
    Float64 actual_range 1.5227209e+9, 1.53787866e+9;
    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";
  }
  number_bands {
    Int32 _ChunkSizes 672;
    Int32 _FillValue -9999999;
    Int32 actual_range 123, 123;
    String comment "number of frequency bands";
    String coordinates "time lat lon";
    String ioos_category "Unknown";
    String long_name "Number Bands";
    Int32 precision 0;
    String units "1";
  }
  deployment {
    Int32 _ChunkSizes 672;
    Int32 actual_range 7, 7;
    String ioos_category "Unknown";
    String name "deployment";
  }
  frequency_spacing {
    Int32 _ChunkSizes 672;
    Float32 _FillValue -9999999.0;
    Float32 actual_range 0.005, 0.005;
    String comment "frequency spacing";
    String coordinates "time lat lon";
    String ioos_category "Unknown";
    String long_name "Frequency Spacing";
    Int32 precision 4;
    String units "Hz";
  }
  driver_timestamp {
    Int32 _ChunkSizes 672;
    Float64 actual_range 1.52328179e+9, 1.5378871e+9;
    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";
  }
  id {
    Int32 _ChunkSizes 672, 36;
    String ioos_category "Unknown";
    String name "id";
  }
  date_string {
    Int32 _ChunkSizes 672, 5;
    String comment "Measurement date in string format.";
    String coordinates "time lat lon";
    String ioos_category "Unknown";
    String long_name "Measurement Date, UTC";
    String units "1";
  }
  wavss_a_non_directional_frequency {
    Int32 _ChunkSizes 672, 123;
    Float32 _FillValue -9999999.0;
    Float32 actual_range 0.03, 0.64;
    String ancillary_variables "number_bands frequency_spacing initial_frequency";
    String comment "Frequency values for non-directional wave spectral bins (WAVSTAT-FND_L1) [Hz]";
    String coordinates "time lat lon";
    String data_product_identifier "WAVSTAT-FND_L1";
    String ioos_category "Unknown";
    String long_name "Non-Directional Wave Spectral Bins";
    Int32 precision 4;
    String units "Hz";
  }
 }
  NC_GLOBAL {
    String AssetManagementRecordLastModified "2020-08-14T18:41:35.101000";
    String AssetUniqueID "CGINS-WAVSSA-05771";
    String cdm_data_type "Other";
    String collection_method "telemetered";
    String Conventions "CF-1.6, NCCSV-1.0";
    String creator_name "Ocean Observatories Initiative";
    String creator_url "http://oceanobservatories.org/";
    String date_created "2020-08-16T10:37:28.683Z";
    String date_modified "2020-08-16T10:37:28.683Z";
    String defaultDataQuery "serial_number,psd_non_directional,time,initial_frequency,wavss_array,time_string,number_bands,frequency_spacing,date_string,wavss_a_non_directional_frequency&time>=max(time)-1days";
    String Description "Surface Wave Spectra: WAVSS Series A";
    String feature_Type "point";
    String FirmwareVersion "Not specified.";
    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 
"2020-08-16T10:37:28.682732 generated from Stream Engine
2021-04-15T23:49:05Z http://oceanobservatories.org/
2021-04-15T23:49:05Z http://erddap-goldcopy.dataexplorer.oceanobservatories.org/tabledap/CE02SHSM-SBD12-05-WAVSSA000-wavss_a_dcl_non_directional-telemetered-deployment0007.das";
    String id "CE02SHSM-SBD12-05-WAVSSA000-telemetered-wavss_a_dcl_non_directional";
    String infoUrl "http://oceanobservatories.org/";
    String institution "Ocean Observatories Initiative";
    Float64 lat 44.63567;
    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 -124.30418;
    String Manufacturer "AXYS Technologies";
    String Metadata_Conventions "Unidata Dataset Discovery v1.0";
    String Mobile "False";
    String ModelNumber "TRIAXYS Directional Wave Sensor";
    String naming_authority "org.oceanobservatories";
    String nodc_template_version "NODC_NetCDF_TimeSeries_Orthogonal_Template_v1.1";
    String node "SBD12";
    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 "d9dc830b-c0b8-44b1-b2e8-3d5b0816540c";
    String sensor "05-WAVSSA000";
    String SerialNumber "TAS05771";
    String ShelfLifeExpirationDate "Not specified.";
    String SoftwareVersion "Not specified.";
    String source "CE02SHSM-SBD12-05-WAVSSA000-telemetered-wavss_a_dcl_non_directional";
    String sourceUrl "http://oceanobservatories.org/";
    String standard_name_vocabulary "NetCDF Climate and Forecast (CF) Metadata Convention Standard Name Table 29";
    String stream "wavss_a_dcl_non_directional";
    String subsite "CE02SHSM";
    String summary "Dataset Generated by Stream Engine from Ocean Observatories Initiative";
    String time_coverage_end "2018-09-25T12:52:20Z";
    String time_coverage_resolution "P3594.65S";
    String time_coverage_start "2018-04-03T02:23:00Z";
    String title "Data produced by Stream Engine version 1.15.0 for CE02SHSM-SBD12-05-WAVSSA000-telemetered-wavss_a_dcl_non_directional";
    String uuid "d9dc830b-c0b8-44b1-b2e8-3d5b0816540c";
  }
}

 

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.

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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