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Dataset Title:  Data produced by Stream Engine version 1.15.0 for CE04OSPS-SF01B-2B-PHSENA108-
streamed-phsen_data_record
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Institution:  Ocean Observatories Initiative   (Dataset ID: CE04OSPS-SF01B-2B-PHSENA108-phsen_data_record-streamed-deployment0003)
Information:  Summary ? | License ? | Metadata | Background (external link) | Make a graph
 
Variable ?   Optional
Constraint #1 ?
Optional
Constraint #2 ?
   Minimum ?
 
   Maximum ?
 
 obs ?          0    860
 measurements (Instrument measurement count) ?          0    22
 preferred_timestamp (1) ?              
 provenance ?              
 id ?              
 thermistor_start (counts) ?          1824    2277
 thermistor_end (counts) ?          1824    2277
 record_time (Record Time, UTC, UTC) ?          1880-06-12T01:31:51Z    1881-06-20T15:33:57Z
 ingestion_timestamp (Ingestion Timestamp, UTC, UTC) ?          2016-07-19T08:02:10Z    2020-05-11T18:50:40Z
 checksum (Data Checksum, 1) ?          -128    126
 port_timestamp (Port Timestamp, UTC, UTC) ?          2016-07-19T08:02:10Z    2017-07-27T22:00:30Z
 time (UTC) ?          2016-07-19T08:02:10Z    2017-07-27T22:00:30Z
  < slider >
 record_type (1) ?          10    10
 record_length (1) ?          -25    -25
 internal_timestamp (Internal Timestamp, UTC, UTC) ?          1900-01-01T00:00:00Z    1900-01-01T00:00:00Z
 deployment ?          3    3
 unique_id (Instrument Unique ID, 1) ?          112    112
 driver_timestamp (Driver Timestamp, UTC, UTC) ?          2016-07-19T08:02:10Z    2020-05-11T18:50:40Z
 voltage_battery (counts) ?          3124    3128
 phsen_thermistor_temperature (V) ?          6.562721    16.79132
 phsen_battery_volts (Battery Voltage, V) ?          11.44043    11.45508
 practical_salinity (1) ?          30.55979    34.00633
 ph_seawater (pH, 1) ?          2.763229    10.2992
 pressure (Seawater Pressure, dbar) ?          15.11823    208.5571
 ph_seawater_qc_executed ?          29    29
 ph_seawater_qc_results ?          13    29
 lat (latitude, degrees_north) ?          44.37415    44.37415
 lon (longitude, degrees_east) ?          -124.9565    -124.9565
 reference_434 (counts) ?          3063    3152
 signal_434 (counts) ?          -5    3200
 reference_578 (counts) ?          1366    1523
 signal_578 (counts) ?          -2    3258
 blank_reference_434 (counts) ?          3061    3152
 blank_signal_434 (counts) ?          -3    3203
 blank_reference_578 (counts) ?          1367    1520
 blank_signal_578 (counts) ?          -2    3260
 
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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  obs {
    Int32 _FillValue -9999;
    Int32 actual_range 0, 860;
    String ioos_category "Unknown";
  }
  measurements {
    Int32 actual_range 0, 22;
    String comment "The instrument takes 4 blank measurements and then 23 indicator measurements where it is injecting and mixing reagent into the sample volume.";
    String ioos_category "Unknown";
    String long_name "Instrument measurement count";
  }
  preferred_timestamp {
    String comment "Timestamp preferred as official record.";
    String ioos_category "Unknown";
    String long_name "Preferred Timestamp";
    String units "1";
  }
  provenance {
    String coordinates "time lat lon pressure";
    String ioos_category "Unknown";
    String name "provenance";
  }
  id {
    String ioos_category "Unknown";
    String name "id";
  }
  thermistor_start {
    Int32 _FillValue -9999;
    Int32 actual_range 1824, 2277;
    String comment "Starting thermistor value";
    String coordinates "time lat lon pressure";
    String ioos_category "Unknown";
    String long_name "Thermistor Resistivity at Start of Measurement";
    Int32 precision 0;
    String units "counts";
  }
  thermistor_end {
    Int32 _FillValue -9999;
    Int32 actual_range 1824, 2277;
    String comment "Thermistor resistivity with a DC volt range of 0 to 5";
    String coordinates "time lat lon pressure";
    String ioos_category "Unknown";
    String long_name "Thermistor Resistivity at End of Measurement";
    Int32 precision 0;
    String units "counts";
  }
  record_time {
    String _Unsigned "true";
    Float64 actual_range -2.826052089e+9, -2.793774363e+9;
    String comment "Time of control record in seconds since January 1, 1904.";
    String coordinates "time lat lon pressure";
    String ioos_category "Time";
    String long_name "Record Time, UTC";
    Int32 precision 0;
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  ingestion_timestamp {
    Float64 actual_range 1.46891533e+9, 1.58922304e+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";
  }
  checksum {
    Int32 _FillValue 0;
    String _Unsigned "true";
    Int32 actual_range -128, 126;
    String comment "Data checksum.";
    String coordinates "time lat lon pressure";
    String ioos_category "Unknown";
    String long_name "Data Checksum";
    Int32 precision 0;
    String units "1";
  }
  port_timestamp {
    Float64 actual_range 1.46891533e+9, 1.50119283e+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 {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.46891533e+9, 1.50119283e+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";
  }
  record_type {
    Int32 _FillValue 0;
    String _Unsigned "true";
    Int32 actual_range 10, 10;
    String comment "Record type";
    String coordinates "time lat lon pressure";
    String ioos_category "Unknown";
    String long_name "Record Type";
    Int32 precision 0;
    String units "1";
  }
  record_length {
    Int32 _FillValue 0;
    String _Unsigned "true";
    Int32 actual_range -25, -25;
    String comment "A 1 byte value indicating the length of the record. Records can be up to 255 bytes long";
    String coordinates "time lat lon pressure";
    String ioos_category "Unknown";
    String long_name "Record Length";
    Int32 precision 0;
    String units "1";
  }
  internal_timestamp {
    Float64 actual_range -2.2089888e+9, -2.2089888e+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";
  }
  deployment {
    Int32 _FillValue -9999;
    Int32 actual_range 3, 3;
    String ioos_category "Unknown";
    String name "deployment";
  }
  unique_id {
    Int32 _FillValue 0;
    String _Unsigned "true";
    Int32 actual_range 112, 112;
    String comment "A 1 byte hash of the SAMI name and calibration.";
    String coordinates "time lat lon pressure";
    String ioos_category "Unknown";
    String long_name "Instrument Unique ID";
    Int32 precision 0;
    String units "1";
  }
  driver_timestamp {
    Float64 actual_range 1.46891533e+9, 1.58922304e+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";
  }
  voltage_battery {
    Int32 _FillValue -9999;
    Int32 actual_range 3124, 3128;
    String comment "Battery voltage in counts.";
    String coordinates "time lat lon pressure";
    String ioos_category "Unknown";
    String long_name "Voltage Battery";
    Int32 precision 0;
    String units "counts";
  }
  phsen_thermistor_temperature {
    Float32 _FillValue -9999999.0;
    Float32 actual_range 6.562721, 16.79132;
    String ancillary_variables "thermistor_end";
    String comment "Thermistor Temperature refers to the internal instrument temperature of the pH sensor, as measured by the thermistor (in volts). It is used to determine salinity and temperature dependent molar absorptivities in the seawater sample in order to make an accurate pH estimation.";
    String coordinates "time lat lon pressure";
    String data_product_identifier "ABSTHRM_L1";
    String ioos_category "Unknown";
    String long_name "Thermistor Temperature at End of Measurement";
    Int32 precision 4;
    String units "V";
  }
  phsen_battery_volts {
    Float32 _FillValue -9999999.0;
    Float32 actual_range 11.44043, 11.45508;
    String ancillary_variables "voltage_battery";
    String coordinates "time lat lon pressure";
    String ioos_category "Unknown";
    String long_name "Battery Voltage";
    Int32 precision 4;
    String units "V";
  }
  practical_salinity {
    Float32 _FillValue NaN;
    Float32 actual_range 30.55979, 34.00633;
    String comment "Salinity is generally defined as the concentration of dissolved salt in a parcel of seawater. Practical Salinity is a more specific unitless quantity calculated from the conductivity of seawater and adjusted for temperature and pressure. It is approximately equivalent to Absolute Salinity (the mass fraction of dissolved salt in seawater) but they are not interchangeable.";
    String coordinates "time lat lon pressure";
    String data_product_identifier "PRACSAL_L2";
    String instrument "CE04OSPS-SF01B-2A-CTDPFA107";
    String ioos_category "Unknown";
    String long_name "Practical Salinity";
    Int32 precision 4;
    String standard_name "sea_water_practical_salinity";
    String stream "ctdpf_sbe43_sample";
    String units "1";
  }
  ph_seawater {
    Float32 _FillValue -9999999.0;
    Float32 actual_range 2.763229, 10.2992;
    String ancillary_variables "phsen_thermistor_temperature ph_light_measurements practical_salinity reference_light_measurements";
    String comment "pH is a measurement of the concentration of hydrogen ions in a solution. pH ranges from acidic to basic on a scale from 0 to 14 with 7 being neutral.";
    String coordinates "time lat lon pressure";
    String data_product_identifier "PHWATER_L1";
    String ioos_category "Unknown";
    String long_name "pH";
    Int32 precision 4;
    String standard_name "sea_water_ph_reported_on_total_scale";
    String units "1";
  }
  pressure {
    Float32 _FillValue NaN;
    Float32 actual_range 15.11823, 208.5571;
    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 data_product_identifier "PRESWAT_L1";
    String ioos_category "Unknown";
    String long_name "Seawater Pressure";
    Int32 precision 3;
    String standard_name "sea_water_pressure";
    String units "dbar";
  }
  ph_seawater_qc_executed {
    Int32 _FillValue -1;
    String _Unsigned "true";
    Int32 actual_range 29, 29;
    String coordinates "time lat lon pressure";
    String ioos_category "Unknown";
  }
  ph_seawater_qc_results {
    Int32 _FillValue -1;
    String _Unsigned "true";
    Int32 actual_range 13, 29;
    String coordinates "time lat lon pressure";
    String ioos_category "Unknown";
  }
  lat {
    Float32 _FillValue NaN;
    Float32 actual_range 44.37415, 44.37415;
    String axis "Y";
    String ioos_category "Unknown";
    String standard_name "latitude";
    String units "degrees_north";
  }
  lon {
    Float32 _FillValue NaN;
    Float32 actual_range -124.9565, -124.9565;
    String axis "X";
    String ioos_category "Unknown";
    String standard_name "longitude";
    String units "degrees_east";
  }
  reference_434 {
    Int32 _FillValue -9999;
    Int32 actual_range 3063, 3152;
    String comment "Optical absorbance reference intensity at 434 nm. Reference and signal intensities range between 0 and 4096. Values should be greater than ~1500. Lower intensities will result in higher noise in the absorbance and pH measurements. Obtained from the ph_light_measurements variable in the Data Portal sourced data file.";
    String coordinates "time lat lon pressure";
    String ioos_category "Unknown";
    String long_name "Reference Intensity at 434 nm";
    Int32 precision 0;
    String units "counts";
  }
  signal_434 {
    Int32 _FillValue -9999;
    Int32 actual_range -5, 3200;
    String comment "Optical absorbance signal intensity at 434 nm. Reference and signal intensities range between 0 and 4096. Values should be greater than ~1500. Lower intensities will result in higher noise in the absorbance and pH measurements. Obtained from the ph_light_measurements variable in the Data Portal sourced data file.";
    String coordinates "time lat lon pressure";
    String data_product_identifier "PH434SI_L0";
    String ioos_category "Unknown";
    String long_name "Signal Intensity at 434 nm";
    Int32 precision 0;
    String units "counts";
  }
  reference_578 {
    Int32 _FillValue -9999;
    Int32 actual_range 1366, 1523;
    String comment "Optical absorbance reference intensity at 578 nm. Reference and signal intensities range between 0 and 4096. Values should be greater than ~1500. Lower intensities will result in higher noise in the absorbance and pH measurements. Obtained from the ph_light_measurements variable in the Data Portal sourced data file.";
    String coordinates "time lat lon pressure";
    String ioos_category "Unknown";
    String long_name "Reference Intensity at 578 nm";
    Int32 precision 0;
    String units "counts";
  }
  signal_578 {
    Int32 _FillValue -9999;
    Int32 actual_range -2, 3258;
    String comment "Optical absorbance signal intensity at 578 nm. Reference and signal intensities range between 0 and 4096. Values should be greater than ~1500. Lower intensities will result in higher noise in the absorbance and pH measurements. Obtained from the ph_light_measurements variable in the Data Portal sourced data file.";
    String coordinates "time lat lon pressure";
    String data_product_identifier "PH578SI_L0";
    String ioos_category "Unknown";
    String long_name "Signal Intensity at 578 nm";
    Int32 precision 0;
    String units "counts";
  }
  blank_reference_434 {
    Int32 _FillValue -9999;
    Int32 actual_range 3061, 3152;
    String comment "Optical absorbance reference intensity at 434 nm. Measured with deionized water. Reference and signal intensities range between 0 and 4096. Values should be greater than ~1500. Lower intensities will result in higher noise in the absorbance and pH measurements. Obtained from the reference_light_measurements variable in the Data Portal sourced data file. Values are fill values for measurements > 3.";
    String coordinates "time lat lon pressure";
    String ioos_category "Unknown";
    String long_name "DI Blank Reference Intensity at 434 nm";
    Int32 precision 0;
    String units "counts";
  }
  blank_signal_434 {
    Int32 _FillValue -9999;
    Int32 actual_range -3, 3203;
    String comment "Optical absorbance signal intensity at 434 nm. Measured with deionized water. Reference and signal intensities range between 0 and 4096. Values should be greater than ~1500. Lower intensities will result in higher noise in the absorbance and pH measurements. Obtained from the reference_light_measurements variable in the Data Portal sourced data file. Values are fill values for measurements > 3.";
    String coordinates "time lat lon pressure";
    String ioos_category "Unknown";
    String long_name "DI Blank Signal Intensity at 434 nm";
    Int32 precision 0;
    String units "counts";
  }
  blank_reference_578 {
    Int32 _FillValue -9999;
    Int32 actual_range 1367, 1520;
    String comment "Optical absorbance reference intensity at 578 nm. Measured with deionized water. Reference and signal intensities range between 0 and 4096. Values should be greater than ~1500. Lower intensities will result in higher noise in the absorbance and pH measurements. Obtained from the reference_light_measurements variable in the Data Portal sourced data file. Values are fill values for measurements > 3.";
    String coordinates "time lat lon pressure";
    String ioos_category "Unknown";
    String long_name "DI Blank Reference Intensity at 578 nm";
    Int32 precision 0;
    String units "counts";
  }
  blank_signal_578 {
    Int32 _FillValue -9999;
    Int32 actual_range -2, 3260;
    String comment "Optical absorbance signal intensity at 578 nm. Measured with deionized water. Reference and signal intensities range between 0 and 4096. Values should be greater than ~1500. Lower intensities will result in higher noise in the absorbance and pH measurements. Obtained from the reference_light_measurements variable in the Data Portal sourced data file. Values are fill values for measurements > 3.";
    String coordinates "time lat lon pressure";
    String ioos_category "Unknown";
    String long_name "DI Blank Signal Intensity at 578 nm";
    Int32 precision 0;
    String units "counts";
  }
 }
  NC_GLOBAL {
    String AssetManagementRecordLastModified "2020-08-14T18:41:35.077000";
    String AssetUniqueID "ATOSU-58337-00008";
    String cdm_data_type "Other";
    String collection_method "streamed";
    String Conventions "CF-1.6, NCCSV-1.0";
    String creator_name "Ocean Observatories Initiative";
    String creator_url "http://oceanobservatories.org/";
    String date_created "2020-08-16T16:36:51.575Z";
    String date_modified "2020-08-16T16:36:51.575Z";
    String defaultDataQuery "measurements,thermistor_start,thermistor_end,record_time,checksum,time,record_type,record_length,unique_id,voltage_battery,phsen_thermistor_temperature,phsen_battery_volts,practical_salinity,ph_seawater,pressure,lat,lon,reference_434,signal_434,reference_578,signal_578,blank_reference_434,blank_signal_434,blank_reference_578,blank_signal_578&time>=max(time)-1days";
    String Description "Seawater pH: PHSEN 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 
"2020-08-16T16:36:51.575207 generated from Stream Engine
2021-03-10 21:18:54Z: Flattened the goldcopy dataset using measurements dimension by adding signal_*, reference_*, and blank_* variables.
2022-01-22T23:15:31Z http://oceanobservatories.org/
2022-01-22T23:15:31Z http://erddap-goldcopy.dataexplorer.oceanobservatories.org/erddap/tabledap/CE04OSPS-SF01B-2B-PHSENA108-phsen_data_record-streamed-deployment0003.html";
    String id "CE04OSPS-SF01B-2B-PHSENA108-streamed-phsen_data_record";
    String infoUrl "http://oceanobservatories.org/";
    String institution "Ocean Observatories Initiative";
    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.";
    String Manufacturer "Sunburst Sensors";
    String Metadata_Conventions "Unidata Dataset Discovery v1.0";
    String Mobile "False";
    String ModelNumber "SAMI-pH";
    String naming_authority "org.oceanobservatories";
    String nodc_template_version "NODC_NetCDF_TimeSeries_Orthogonal_Template_v1.1";
    String node "SF01B";
    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 "c4e308d7-61fe-44f7-8e67-6dec950afd67";
    String sensor "2B-PHSENA108";
    String SerialNumber "P0131";
    String ShelfLifeExpirationDate "Not specified.";
    String SoftwareVersion "Not specified.";
    String source "CE04OSPS-SF01B-2B-PHSENA108-streamed-phsen_data_record";
    String sourceUrl "http://oceanobservatories.org/";
    String standard_name_vocabulary "NetCDF Climate and Forecast (CF) Metadata Convention Standard Name Table 29";
    String stream "phsen_data_record";
    String subsite "CE04OSPS";
    String summary "Dataset Generated by Stream Engine from Ocean Observatories Initiative";
    String time_coverage_end "2017-07-27T22:00:30Z";
    String time_coverage_resolution "P3676.71S";
    String time_coverage_start "2016-07-19T08:02:10Z";
    String title "Data produced by Stream Engine version 1.15.0 for CE04OSPS-SF01B-2B-PHSENA108-streamed-phsen_data_record";
    String uuid "c4e308d7-61fe-44f7-8e67-6dec950afd67";
  }
}

 

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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