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Dataset Title:  Aggregation of Surface Current measurements collected in situ by Datawell
Waverider buoys.
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Institution:  cdip.ucsd.edu   (Dataset ID: acm_agg)
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Subset | Files | Make a graph
 
Variable ?   Optional
Constraint #1 ?
Optional
Constraint #2 ?
   Minimum ?
   or a List of Values ?
   Maximum ?
 
 station_id ?      
   - +  ?
 time (UTC) ?          2012-04-19T18:00:00Z    2021-06-22T18:40:00Z
  < slider >
 acmFlagPrimary (primary acm QC flag) ?      
   - +  ?
 acmFlagSecondary (secondary acm QC flag) ?          0    6
 acmSpeed ?          0.0    2.278
 acmSpeedStdDev ?          0.008    0.055
 acmDirection ?          0.01098633    359.989
 acmDirectionStdDev ?          0.3    25.5
 acmVerticalSpeed ?          -0.128    0.127
 acmVerticalSpeedStdDev ?          0.009    0.081
 acmSourceIndex ?          1    36280
 metaStationName (station name) ?      
   - +  ?
 latitude (degrees_north) ?      
   - +  ?
  < slider >
 longitude (degrees_east) ?      
   - +  ?
  < slider >
 eastCurrent (m s-1) ?          -2.276818    2.121541
 northCurrent (m s-1) ?          -1.38448    1.542777
 
Server-side Functions ?
 distinct() ?
? ("Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.")

File type: (more info)

(Documentation / Bypass this form ? )
 
(Please be patient. It may take a while to get the data.)


 

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  station_id {
    String ioos_category "Identifier";
    String long_name "Station Id";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.3348584e+9, 1.6243872e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Time";
    String source_name "acmTime";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  acmFlagPrimary {
    String _Unsigned "false";
    Byte actual_range 1, 4;
    String ancillary_variables "acmFlagSecondary";
    Float64 colorBarMaximum 10.0;
    Float64 colorBarMinimum 0.0;
    String flag_meanings "good not_evaluated questionable bad missing";
    Byte flag_values 1, 2, 3, 4, 9;
    String ioos_category "Quality";
    String long_name "primary acm QC flag";
    String references "Ocean Data Standards, UNESCO 2013 - IOC Manuals and Guides, 54, Volume 3 Version 1";
  }
  acmFlagSecondary {
    String _Unsigned "false";
    Byte actual_range 0, 6;
    Float64 colorBarMaximum 15.0;
    Float64 colorBarMinimum 0.0;
    String flag_meanings "unspecified sensor_issues acm_failure speed_out_of_range speed_stddev_out_of_range direction_stddev_out_of_range signal_strength_low speed_spike vertical_speed_out_of_range hf_transmission_errors_fixed hf_transmission_errors_present";
    Byte flag_values 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10;
    String ioos_category "Quality";
    String long_name "secondary acm QC flag";
    String references "http://cdip.ucsd.edu/documentation";
  }
  acmSpeed {
    Float32 actual_range 0.0, 2.278;
    Float64 colorBarMaximum 0.5;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Currents";
  }
  acmSpeedStdDev {
    Float32 actual_range 0.008, 0.055;
    Float64 colorBarMaximum 50.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Statistics";
  }
  acmDirection {
    Float32 actual_range 0.01098633, 359.989;
    Float64 colorBarMaximum 360.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Currents";
  }
  acmDirectionStdDev {
    Float32 actual_range 0.3, 25.5;
    Float64 colorBarMaximum 50.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Statistics";
  }
  acmVerticalSpeed {
    Float32 actual_range -0.128, 0.127;
    Float64 colorBarMaximum 0.5;
    Float64 colorBarMinimum -0.5;
    String ioos_category "Currents";
  }
  acmVerticalSpeedStdDev {
    Float32 actual_range 0.009, 0.081;
    Float64 colorBarMaximum 50.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Statistics";
  }
  acmSourceIndex {
    Int32 actual_range 1, 36280;
    String ioos_category "Unknown";
  }
  metaStationName {
    String cf_role "timeseries_id";
    String ioos_category "Identifier";
    String long_name "station name";
    String standard_name "platform_id";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range -27.92872, 59.76003;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "Latitude";
    String ncei_name "LATITUDE";
    String source_name "metaDeployLatitude";
    String standard_name "latitude";
    String units "degrees_north";
    Float32 valid_max 90.0;
    Float32 valid_min -90.0;
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -170.5005, 171.40166;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "Longitude";
    String ncei_name "LONGITUDE";
    String source_name "metaDeployLongitude";
    String standard_name "longitude";
    String units "degrees_east";
    Float32 valid_max 180.0;
    Float32 valid_min -180.0;
  }
  eastCurrent {
    Float32 actual_range -2.276818, 2.121541;
    String comment "Calculated from acmSpeed and acmDirection.";
    String ioos_category "Currents";
    String long_name "eastward sea water velocity";
    String standard_name "eastward_sea_water_velocity";
    String units "m s-1";
  }
  northCurrent {
    Float32 actual_range -1.38448, 1.542777;
    String comment "Calculated from acmSpeed and acmDirection.";
    String ioos_category "Currents";
    String long_name "northward sea water velocity";
    String standard_name "northward_sea_water_velocity";
    String units "m s-1";
  }
 }
  NC_GLOBAL {
    String acknowledgement "CDIP is primarily supported by the U.S. Army Corps of Engineers (USACE).";
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "station_id, metaStationName, latitude, longitude";
    String comment "This dataset contains data as acquired in real-time, the QC performed upon it is not as complete as for historic CDIP datasets. All values are decoded directly from the instruments in accordance with the manufacturers documentation EXCEPT for those with the attribute :additional_processing which describes further data handling performed by CDIP.";
    String contributor_name "CSI, CSI/USACE, CDIP";
    String contributor_role "station operation, station funding, data management";
    String Conventions "ACDD-1.3, CF-1.6, COARDS";
    String creator_email "www@cdip.ucsd.edu";
    String creator_name "Coastal Data Information Program, SIO/UCSD";
    String creator_type "institution";
    String creator_url "http://cdip.ucsd.edu";
    String date_created "2021-06-22T18:47:23Z";
    String date_issued "2021-06-22T18:47:23Z";
    String date_modified "2021-06-22T18:47:23Z";
    String defaultDataQuery "station_id,time,acmSpeed,acmDirection&time>=now-3day&time<=now&acmFlagPrimary=1&orderByMax(\"station_id,time\")";
    String defaultGraphQuery "longitude,latitude,acmSpeed&time>=now-3day&time<=now&acmFlagPrimary=1&orderByMax(\"station_id,time\")";
    Float64 Easternmost_Easting 171.4017;
    String featureType "TimeSeries";
    Float64 geospatial_lat_max 59.76003;
    Float64 geospatial_lat_min -27.92872;
    Float32 geospatial_lat_resolution 1.0e-4;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 171.4017;
    Float64 geospatial_lon_min -170.5005;
    Float32 geospatial_lon_resolution 1.0e-4;
    String geospatial_lon_units "degrees_east";
    String geospatial_vertical_origin "sea surface";
    String geospatial_vertical_positive "up";
    Float32 geospatial_vertical_resolution 1.0;
    String geospatial_vertical_units "meters";
    String history 
"2021-06-22T18:47:24Z: dataset created; multiple updates - last run program, arguments: process_dw_realtime v2.0, is70387K_202106221846 If date_modified is after date_created, contact CDIP for details of changes.
2021-06-23T06:27:31Z (local files)
2021-06-23T06:27:31Z http://erddap.cdip.ucsd.edu/erddap/tabledap/acm_agg.html";
    String infoUrl "https://cdip.ucsd.edu/";
    String institution "cdip.ucsd.edu";
    String instrument "metaInstrumentation";
    String keywords "acm, acmDirection, acmDirectionStdDev, acmFlagPrimary, acmFlagSecondary, acmSeaSurfaceTemperature, acmSignalStrength1, acmSignalStrength2, acmSignalStrength3, acmSourceIndex, acmSpeed, acmSpeedStdDev, acmStatus, acmVerticalSpeed, acmVerticalSpeedStdDev, atlantic ocean, attributes, bahia, buoys, california, cdip.ucsd.edu, circulation, collected, current, currents, data, datawell, dbr, depth, deviation, diego, direction, direction_of_sea_water_velocity, directional, earth, earth science, Earth Science > Oceans > Ocean Circulation > Ocean Currents, Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature, file, flag, gravity waves, grid, honda, identifier, index, institution, instrumentation, key, latitude, located, longitude, mapping, measurements, meta, metaGridMapping, metaInstrumentation, metaPlatform, metaStationName, name, near, north atlantic ocean, ocean, ocean temperature, ocean waves, oceanography, oceans, platform, primary, quality, received, san, science, scripps, sea, sea surface temperature, sea_surface_temperature, sea_water_speed, seawater, secondary, signal, significant wave height, situ, source, speed, sst, standard, station, statistics, status, strength, surface, temperature, time, transducer, university, upward, upward_sea_water_velocity, velocity, vertical, water, water temperature, wave, wave frequency, wave period, wave spectra, waverider, wind waves";
    String keywords_vocabulary "GCMD Science Keywords";
    String license "These data may be redistributed and used without restriction.";
    String metadata_link "http://cdip.ucsd.edu/metadata/243p1";
    String naming_authority "edu.ucsd.cdip";
    Float64 Northernmost_Northing 59.76003;
    String platform "metaPlatform";
    String processing_level "QA/QC information available at http://cdip.ucsd.edu/documentation";
    String project "Coastal Data Information Program (CDIP)";
    String publisher_email "www@cdip.ucsd.edu";
    String publisher_name "Coastal Data Information Program, SIO/UCSD";
    String publisher_type "institution";
    String publisher_url "http://cdip.ucsd.edu";
    String references "http://cdip.ucsd.edu/documentation";
    String source "insitu observations";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing -27.92872;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String subsetVariables "station_id, metaStationName, latitude, longitude, acmFlagPrimary";
    String summary "Surface current measurements collected in situ by Datawell Waverider buoys.";
    String testOutOfDate "now-1day";
    String time_coverage_duration "P402DT02H27M";
    String time_coverage_end "2021-06-22T18:40:00Z";
    String time_coverage_resolution "PT30M";
    String time_coverage_start "2012-04-19T18:00:00Z";
    String title "Aggregation of Surface Current measurements collected in situ by Datawell Waverider buoys.";
    Float64 Westernmost_Easting -170.5005;
  }
}

 

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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