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Dataset Title:  Data produced by Stream Engine version 1.15.0 for CE01ISSM-SBD17-04-VELPTA000-
recovered_inst-velpt_ab_instrument_recovered
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Institution:  Ocean Observatories Initiative   (Dataset ID: CE01ISSM-SBD17-04-VELPTA000-velpt_ab_instrument_recovered-recovered_inst-deployment0006)
Range: time = 2016-09-30T16:44:50Z to 2017-04-17T19:29:00Z
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, 19115;
    String ioos_category "Unknown";
  }
  pressure_mbar {
    Int32 _ChunkSizes 10000;
    Int32 _FillValue -9999999;
    Int32 actual_range 2098, 3493;
    String axis "Z";
    String comment "Seawater Pressure refers to the pressure exerted on a sensor in situ by the weight of the column of seawater above it. It is calculated by subtracting one standard atmosphere from the absolute pressure at the sensor to remove the weight of the atmosphere on top of the water column. The pressure at a sensor in situ provides a metric of the depth of that sensor.";
    String ioos_category "Unknown";
    String long_name "Seawater Pressure";
    Int32 precision 3;
    String standard_name "sea_water_pressure";
    String units "0.001 dbar";
  }
  amplitude_beam1 {
    Int32 _ChunkSizes 10000;
    Int32 _FillValue 0;
    String _Unsigned "true";
    Int32 actual_range -128, 126;
    String coordinates "time lat lon pressure_mbar";
    String ioos_category "Unknown";
    String long_name "Amplitude, Beam 1";
    Int32 precision 0;
    String units "counts";
  }
  northward_velocity_qc_results {
    Int32 _ChunkSizes 10000;
    Int32 _FillValue -1;
    String _Unsigned "true";
    Int32 actual_range 21, 29;
    String coordinates "time lat lon pressure_mbar";
    String ioos_category "Unknown";
  }
  upward_velocity {
    Int32 _ChunkSizes 10000;
    Float32 _FillValue -9999999.0;
    Float32 actual_range -0.079, 0.149;
    String ancillary_variables "velocity_beam3";
    String comment "Mean Point Seawater Velocity refers to the velocity (speed and direction) of a single \"point\" of water (in this case, a volume of several square meters) averaged over time-scales associated with surface gravity waves. This instrument estimates water velocity by measuring the Doppler shift of acoustic signals reflected by particles suspended in the water. This data product is the upward component of mean point seawater velocity.";
    String coordinates "time lat lon pressure_mbar";
    String data_product_identifier "VELPTMN-VLU_L1";
    String ioos_category "Unknown";
    String long_name "Upward Mean Point Seawater Velocity";
    String standard_name "upward_sea_water_velocity";
    String units "m s-1";
  }
  battery_voltage_dv {
    Int32 _ChunkSizes 10000;
    Int32 _FillValue 0;
    String _Unsigned "true";
    String comment "Instrument battery voltage reported in decivolts.";
    String coordinates "time lat lon pressure_mbar";
    String ioos_category "Unknown";
    String long_name "Battery Voltage";
    Int32 precision 3;
    String units "dV";
  }
  pitch_decidegree {
    Int32 _ChunkSizes 10000;
    Int32 _FillValue -9999;
    Int32 actual_range -47, 18;
    String comment "The rotated angle about the pitch-axis relative to the horizontal plane. Rotation follows the right hand rule designation; i.e. with the r.h. thumb pointing in the rotation axis direction, positive rotation is in the direction of the curled fingers.";
    String coordinates "time lat lon pressure_mbar";
    String ioos_category "Unknown";
    String long_name "Compass Pitch";
    Int32 precision 1;
    String standard_name "platform_pitch_angle";
    String units "deci-degrees";
  }
  driver_timestamp {
    Int32 _ChunkSizes 10000;
    Float64 actual_range 1.51139955e+9, 1.51139955e+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";
  }
  velocity_beam1 {
    Int32 _ChunkSizes 10000;
    Int32 _FillValue -9999;
    Int32 actual_range -504, 286;
    String comment "Mean Point Seawater Velocity refers to the velocity (speed and direction) of a single \"point\" of water (in this case, a volume of several square meters) averaged over time-scales associated with surface gravity waves. This instrument estimates water velocity by measuring the Doppler shift of acoustic signals reflected by particles suspended in the water. This data product is the eastward component of mean point seawater velocity in earth coordinates relative to true north (accounted for magnetic variation).";
    String coordinates "time lat lon pressure_mbar";
    String data_product_identifier "VELPTMN-VLE_L0";
    String ioos_category "Unknown";
    String long_name "Eastward Mean Point Seawater Velocity";
    String units "mm s-1";
  }
  id {
    Int32 _ChunkSizes 10000, 36;
    String ioos_category "Unknown";
    String name "id";
  }
  velocity_beam3 {
    Int32 _ChunkSizes 10000;
    Int32 _FillValue -9999;
    Int32 actual_range -79, 149;
    String comment "Mean Point Seawater Velocity refers to the velocity (speed and direction) of a single \"point\" of water (in this case, a volume of several square meters) averaged over time-scales associated with surface gravity waves. This instrument estimates water velocity by measuring the Doppler shift of acoustic signals reflected by particles suspended in the water. This data product is the upward component of mean point seawater velocity.";
    String coordinates "time lat lon pressure_mbar";
    String data_product_identifier "VELPTMN-VLU_L0";
    String ioos_category "Unknown";
    String long_name "Upward Mean Point Seawater Velocity";
    String units "mm s-1";
  }
  velocity_beam2 {
    Int32 _ChunkSizes 10000;
    Int32 _FillValue -9999;
    Int32 actual_range -514, 1005;
    String comment "Mean Point Seawater Velocity refers to the velocity (speed and direction) of a single \"point\" of water (in this case, a volume of several square meters) averaged over time-scales associated with surface gravity waves. This instrument estimates water velocity by measuring the Doppler shift of acoustic signals reflected by particles suspended in the water. This data product is the northward component of mean point seawater velocity in earth coordinates relative to true north (accounted for magnetic variation).";
    String coordinates "time lat lon pressure_mbar";
    String data_product_identifier "VELPTMN-VLN_L0";
    String ioos_category "Unknown";
    String long_name "Northward Mean Point Seawater Velocity";
    String units "mm s-1";
  }
  sound_speed_dms {
    Int32 _ChunkSizes 10000;
    Int32 _FillValue 0;
    String _Unsigned "true";
    Int32 actual_range 14810, 15028;
    String coordinates "time lat lon pressure_mbar";
    String ioos_category "Unknown";
    String long_name "Speed of Sound";
    String units "dm s-1";
  }
  northward_velocity_qc_executed {
    Int32 _ChunkSizes 10000;
    Int32 _FillValue -1;
    String _Unsigned "true";
    Int32 actual_range 29, 29;
    String coordinates "time lat lon pressure_mbar";
    String ioos_category "Unknown";
  }
  pressure_mbar_qc_executed {
    Int32 _ChunkSizes 10000;
    Int32 _FillValue -1;
    String _Unsigned "true";
    Int32 actual_range 1, 1;
    String coordinates "time lat lon pressure_mbar";
    String ioos_category "Unknown";
  }
  velocity_beam2_qc_executed {
    Int32 _ChunkSizes 10000;
    Int32 _FillValue -1;
    String _Unsigned "true";
    Int32 actual_range 1, 1;
    String coordinates "time lat lon pressure_mbar";
    String ioos_category "Unknown";
  }
  provenance {
    Int32 _ChunkSizes 10000, 36;
    String coordinates "time lat lon pressure_mbar";
    String ioos_category "Unknown";
    String name "provenance";
  }
  date_time_string {
    Int32 _ChunkSizes 10000, 19;
    String comment "A date and time string produced for each sample record.";
    String coordinates "time lat lon pressure_mbar";
    String ioos_category "Unknown";
    String long_name "Date and Time String";
    Int32 precision 0;
    String units "1";
  }
  internal_timestamp {
    Int32 _ChunkSizes 10000;
    Float64 actual_range 1.47525389e+9, 1.49245734e+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";
  }
  roll_decidegree {
    Int32 _ChunkSizes 10000;
    Int32 _FillValue -9999;
    Int32 actual_range -174, 15;
    String comment "The rotated angle about the roll-axis relative to the horizontal plane. Rotation follows the right hand rule designation; i.e. with the r.h. thumb pointing in the rotation axis direction, positive rotation is in the direction of the curled fingers.";
    String coordinates "time lat lon pressure_mbar";
    String ioos_category "Unknown";
    String long_name "Compass Roll";
    Int32 precision 1;
    String standard_name "platform_roll_angle";
    String units "deci-degrees";
  }
  temperature_centidegree {
    Int32 _ChunkSizes 10000;
    Int32 _FillValue -9999;
    Int32 actual_range 827, 1454;
    String comment "Seawater temperature near the sensor.";
    String coordinates "time lat lon pressure_mbar";
    String ioos_category "Unknown";
    String long_name "Seawater Temperature";
    Int32 precision 2;
    String standard_name "sea_water_temperature";
    String units "0.01 ºC";
  }
  status {
    Int32 _ChunkSizes 10000;
    Int32 _FillValue 0;
    String _Unsigned "true";
    Int32 actual_range 33, 61;
    String coordinates "time lat lon pressure_mbar";
    String ioos_category "Unknown";
    String long_name "Status";
    Int32 precision 0;
    String units "1";
  }
  eastward_velocity_qc_executed {
    Int32 _ChunkSizes 10000;
    Int32 _FillValue -1;
    String _Unsigned "true";
    Int32 actual_range 29, 29;
    String coordinates "time lat lon pressure_mbar";
    String ioos_category "Unknown";
  }
  ingestion_timestamp {
    Int32 _ChunkSizes 10000;
    Float64 actual_range 1.51139955e+9, 1.51139955e+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";
  }
  port_timestamp {
    Int32 _ChunkSizes 10000;
    Float64 actual_range -2.2089888e+9, -2.2089888e+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";
  }
  upward_velocity_qc_executed {
    Int32 _ChunkSizes 10000;
    Int32 _FillValue -1;
    String _Unsigned "true";
    Int32 actual_range 29, 29;
    String coordinates "time lat lon pressure_mbar";
    String ioos_category "Unknown";
  }
  upward_velocity_qc_results {
    Int32 _ChunkSizes 10000;
    Int32 _FillValue -1;
    String _Unsigned "true";
    Int32 actual_range 25, 29;
    String coordinates "time lat lon pressure_mbar";
    String ioos_category "Unknown";
  }
  heading_decidegree {
    Int32 _ChunkSizes 10000;
    Int32 _FillValue -9999;
    Int32 actual_range 0, 3598;
    String coordinates "time lat lon pressure_mbar";
    String ioos_category "Unknown";
    String long_name "Compass Heading";
    Int32 precision 1;
    String units "deci-degrees";
  }
  amplitude_beam2 {
    Int32 _ChunkSizes 10000;
    Int32 _FillValue 0;
    String _Unsigned "true";
    Int32 actual_range -128, 126;
    String coordinates "time lat lon pressure_mbar";
    String ioos_category "Unknown";
    String long_name "Amplitude, Beam 2";
    Int32 precision 0;
    String units "counts";
  }
  amplitude_beam3 {
    Int32 _ChunkSizes 10000;
    Int32 _FillValue 0;
    String _Unsigned "true";
    Int32 actual_range -128, 126;
    String coordinates "time lat lon pressure_mbar";
    String ioos_category "Unknown";
    String long_name "Amplitude, Beam 3";
    Int32 precision 0;
    String units "counts";
  }
  deployment {
    Int32 _ChunkSizes 10000;
    Int32 actual_range 6, 6;
    String ioos_category "Unknown";
    String name "deployment";
  }
  pressure_mbar_qc_results {
    Int32 _ChunkSizes 10000;
    Int32 _FillValue -1;
    String _Unsigned "true";
    Int32 actual_range 1, 1;
    String coordinates "time lat lon pressure_mbar";
    String ioos_category "Unknown";
  }
  northward_velocity {
    Int32 _ChunkSizes 10000;
    Float32 _FillValue -9999999.0;
    Float32 actual_range -0.5213541, 0.9827159;
    String ancillary_variables "velocity_beam1 time velocity_beam2";
    String comment "Mean Point Seawater Velocity refers to the velocity (speed and direction) of a single \"point\" of water (in this case, a volume of several square meters) averaged over time-scales associated with surface gravity waves. This instrument estimates water velocity by measuring the Doppler shift of acoustic signals reflected by particles suspended in the water. This data product is the northward component of mean point seawater velocity in earth coordinates relative to true north (accounted for magnetic variation).";
    String coordinates "time lat lon pressure_mbar";
    String data_product_identifier "VELPTMN-VLN_L1";
    String ioos_category "Unknown";
    String long_name "Northward Mean Point Seawater Velocity";
    String standard_name "northward_sea_water_velocity";
    String units "m s-1";
  }
  velocity_beam2_qc_results {
    Int32 _ChunkSizes 10000;
    Int32 _FillValue -1;
    String _Unsigned "true";
    Int32 actual_range 1, 1;
    String coordinates "time lat lon pressure_mbar";
    String ioos_category "Unknown";
  }
  eastward_velocity {
    Int32 _ChunkSizes 10000;
    Float32 _FillValue -9999999.0;
    Float32 actual_range -0.4505857, 0.3426692;
    String ancillary_variables "velocity_beam1 time velocity_beam2";
    String comment "Mean Point Seawater Velocity refers to the velocity (speed and direction) of a single \"point\" of water (in this case, a volume of several square meters) averaged over time-scales associated with surface gravity waves. This instrument estimates water velocity by measuring the Doppler shift of acoustic signals reflected by particles suspended in the water. This data product is the eastward component of mean point seawater velocity in earth coordinates relative to true north (accounted for magnetic variation).";
    String coordinates "time lat lon pressure_mbar";
    String data_product_identifier "VELPTMN-VLE_L1";
    String ioos_category "Unknown";
    String long_name "Eastward Mean Point Seawater Velocity";
    String standard_name "eastward_sea_water_velocity";
    String units "m s-1";
  }
  preferred_timestamp {
    Int32 _ChunkSizes 10000, 18;
    String comment "Timestamp preferred as official record.";
    String ioos_category "Unknown";
    String long_name "Preferred Timestamp";
    String units "1";
  }
  velocity_beam3_qc_executed {
    Int32 _ChunkSizes 10000;
    Int32 _FillValue -1;
    String _Unsigned "true";
    Int32 actual_range 1, 1;
    String coordinates "time lat lon pressure_mbar";
    String ioos_category "Unknown";
  }
  velocity_beam1_qc_results {
    Int32 _ChunkSizes 10000;
    Int32 _FillValue -1;
    String _Unsigned "true";
    Int32 actual_range 1, 1;
    String coordinates "time lat lon pressure_mbar";
    String ioos_category "Unknown";
  }
  velocity_beam3_qc_results {
    Int32 _ChunkSizes 10000;
    Int32 _FillValue -1;
    String _Unsigned "true";
    Int32 actual_range 1, 1;
    String coordinates "time lat lon pressure_mbar";
    String ioos_category "Unknown";
  }
  time {
    Int32 _ChunkSizes 10000;
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.47525389e+9, 1.49245734e+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";
  }
  velocity_beam1_qc_executed {
    Int32 _ChunkSizes 10000;
    Int32 _FillValue -1;
    String _Unsigned "true";
    Int32 actual_range 1, 1;
    String coordinates "time lat lon pressure_mbar";
    String ioos_category "Unknown";
  }
  eastward_velocity_qc_results {
    Int32 _ChunkSizes 10000;
    Int32 _FillValue -1;
    String _Unsigned "true";
    Int32 actual_range 25, 29;
    String coordinates "time lat lon pressure_mbar";
    String ioos_category "Unknown";
  }
  error_code {
    Int32 _ChunkSizes 10000;
    Int32 _FillValue 0;
    String _Unsigned "true";
    String coordinates "time lat lon pressure_mbar";
    String ioos_category "Unknown";
    String long_name "Error Code";
    Int32 precision 0;
    String units "1";
  }
  analog1 {
    Int32 _ChunkSizes 10000;
    Int32 _FillValue 0;
    String _Unsigned "true";
    String coordinates "time lat lon pressure_mbar";
    String ioos_category "Unknown";
    String long_name "Analog 1";
    Int32 precision 0;
    String units "1";
  }
 }
  NC_GLOBAL {
    String AssetManagementRecordLastModified "2020-08-14T18:41:37.443000";
    String AssetUniqueID "CGINS-VELPTA-11789";
    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 "2020-08-16T06:13:07.133Z";
    String date_modified "2020-08-16T06:13:07.133Z";
    String defaultDataQuery "pressure_mbar,amplitude_beam1,upward_velocity,battery_voltage_dv,pitch_decidegree,velocity_beam1,velocity_beam3,velocity_beam2,sound_speed_dms,date_time_string,roll_decidegree,temperature_centidegree,status,heading_decidegree,amplitude_beam2,amplitude_beam3,northward_velocity,eastward_velocity,time,error_code,analog1&time>=max(time)-1days";
    String Description "Single Point Velocity Meter: VELPT 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 
"2020-08-16T06:13:07.133294 generated from Stream Engine
2021-04-16T08:00:39Z http://oceanobservatories.org/
2021-04-16T08:00:39Z http://erddap-goldcopy.dataexplorer.oceanobservatories.org/tabledap/CE01ISSM-SBD17-04-VELPTA000-velpt_ab_instrument_recovered-recovered_inst-deployment0006.das";
    String id "CE01ISSM-SBD17-04-VELPTA000-recovered_inst-velpt_ab_instrument_recovered";
    String infoUrl "http://oceanobservatories.org/";
    String institution "Ocean Observatories Initiative";
    Float64 lat 44.65975;
    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 -124.09504;
    String Manufacturer "Nortek";
    String Metadata_Conventions "Unidata Dataset Discovery v1.0";
    String Mobile "False";
    String ModelNumber "Aquadopp";
    String naming_authority "org.oceanobservatories";
    String nodc_template_version "NODC_NetCDF_TimeSeries_Orthogonal_Template_v1.1";
    String node "SBD17";
    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 "acf279af-316a-4ed3-996c-a041fdf0993a";
    String sensor "04-VELPTA000";
    String SerialNumber "AQD 11789";
    String ShelfLifeExpirationDate "Not specified.";
    String SoftwareVersion "Not specified.";
    String source "CE01ISSM-SBD17-04-VELPTA000-recovered_inst-velpt_ab_instrument_recovered";
    String sourceUrl "http://oceanobservatories.org/";
    String standard_name_vocabulary "NetCDF Climate and Forecast (CF) Metadata Convention Standard Name Table 29";
    String stream "velpt_ab_instrument_recovered";
    String subsite "CE01ISSM";
    String summary "Dataset Generated by Stream Engine from Ocean Observatories Initiative";
    String time_coverage_end "2017-04-17T19:29:00Z";
    String time_coverage_resolution "P899.95S";
    String time_coverage_start "2016-09-30T16:44:50Z";
    String title "Data produced by Stream Engine version 1.15.0 for CE01ISSM-SBD17-04-VELPTA000-recovered_inst-velpt_ab_instrument_recovered";
    String uuid "acf279af-316a-4ed3-996c-a041fdf0993a";
  }
}

 

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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