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Dataset Title:  eMOLT Data with flags and QC/QA Subscribe RSS
Institution:  Environmental Monitors on Lobster Traps and Large Trawlers   (Dataset ID: eMOLT_RT_QAQC)
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 ?
 
 tow_id ?          1    32507
 segment_type ?      
   - +  ?
 time (Datetime, UTC) ?          2018-03-23T09:58:51Z    2025-03-31T03:28:13Z
  < slider >
 latitude (degrees_north) ?          0.0    100.666
  < slider >
 longitude (degrees_east) ?          -100.666    0.0
  < slider >
 depth (m) ?          1.0005    10332.0
  < slider >
 temperature (degree_C) ?          -273.15    1194.09
 sensor_type ?      
   - +  ?
 qc_vessel_region (Flag Vessel Region Test) ?          1    1
 qc_gear_type (Flag Gear Type Test) ?          1    4
 qc_date (Flag Date Test) ?          1    1
 qc_location (Flag Location Test) ?          1    4
 qc_speed (Flag Speed Test) ?          1    4
 qc_global_range (Flag Global Range Test) ?          1    4
 qc_temp_spike (Flag Temperature Spike Test) ?          1    4
 qc_rollover (Flag Rollover Test) ?          1    3
 qc_temp_stuck (Flag Temperature Stuck Test) ?          1    4
 qc_RoC (Flag Rate of Change Test) ?          1    3
 qc_clima (Flag Climatology Test) ?          1    3
 qc_mud (Flag Mud Test) ?          1    3
 
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 information)

(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 {
  tow_id {
    Int32 _FillValue 2147483647;
    Int32 actual_range 1, 32507;
    String ioos_category "Identifier";
    String long_name "Unique Fishing Operation Identifier";
  }
  segment_type {
    String conventions "Fishing: bottom data; Profiling Down: gear being set; Profiling Up; gear being hauled";
    String ioos_category "Identifier";
    String long_name "Fishing Stage When Data is Collected";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.521799131e+9, 1.743391693e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Datetime";
    String source_name "datetime";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String time_precision "1970-01-01T00:00:00Z";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 _FillValue NaN;
    Float32 actual_range 0.0, 100.666;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 _FillValue NaN;
    Float32 actual_range -100.666, 0.0;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float32 _FillValue NaN;
    Float32 actual_range 1.0005, 10332.0;
    String axis "Z";
    String ioos_category "Location";
    String long_name "Depth";
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  temperature {
    Float32 _FillValue NaN;
    Float32 actual_range -273.15, 1194.09;
    Float64 colorBarMaximum 25.0;
    Float64 colorBarMinimum -4.0;
    String ioos_category "Temperature";
    String long_name "Temperature";
    String standard_name "sea_water_temperature";
    String units "degree_C";
  }
  sensor_type {
    String conventions "SensorML";
    String ioos_category "Identifier";
    String long_name "Sensor Type";
  }
  qc_vessel_region {
    Byte _FillValue 127;
    String _Unsigned "false";
    Byte actual_range 1, 1;
    String flag_meanings "NaN/0 No QC was performed, 1 Good data, 2 Suspect data, 4 Bad data, 5 Corrected data, 9 Missing value";
    String infoUrl "https://github.com/BerringDC/BDC_qc#vessel-id-control-test";
    String ioos_category "Quality";
    String long_name "Flag Vessel Region Test";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  qc_gear_type {
    Byte _FillValue 127;
    String _Unsigned "false";
    Byte actual_range 1, 4;
    String flag_meanings "NaN/0 No QC was performed, 1 Good data, 2 Suspect data, 4 Bad data, 5 Corrected data, 9 Missing value";
    String infoUrl "https://github.com/BerringDC/BDC_qc#gear-type-control-test";
    String ioos_category "Quality";
    String long_name "Flag Gear Type Test";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  qc_date {
    Byte _FillValue 127;
    String _Unsigned "false";
    Byte actual_range 1, 1;
    String flag_meanings "NaN/0 No QC was performed, 1 Good data, 2 Suspect data, 4 Bad data, 5 Corrected data, 9 Missing value";
    String infoUrl "https://github.com/BerringDC/BDC_qc#impossible-date-test";
    String ioos_category "Quality";
    String long_name "Flag Date Test";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  qc_location {
    Byte _FillValue 127;
    String _Unsigned "false";
    Byte actual_range 1, 4;
    String flag_meanings "NaN/0 No QC was performed, 1 Good data, 2 Suspect data, 4 Bad data, 5 Corrected data, 9 Missing value";
    String infoUrl "https://github.com/BerringDC/BDC_qc#impossible-location-test";
    String ioos_category "Quality";
    String long_name "Flag Location Test";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  qc_speed {
    Byte _FillValue 127;
    String _Unsigned "false";
    Byte actual_range 1, 4;
    String flag_meanings "NaN/0 No QC was performed, 1 Good data, 2 Suspect data, 4 Bad data, 5 Corrected data, 9 Missing value";
    String infoUrl "https://github.com/BerringDC/BDC_qc#impossible-speed-test";
    String ioos_category "Quality";
    String long_name "Flag Speed Test";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  qc_global_range {
    Byte _FillValue 127;
    String _Unsigned "false";
    Byte actual_range 1, 4;
    String flag_meanings "NaN/0 No QC was performed, 1 Good data, 2 Suspect data, 4 Bad data, 5 Corrected data, 9 Missing value";
    String infoUrl "https://github.com/BerringDC/BDC_qc#global-range-test";
    String ioos_category "Quality";
    String long_name "Flag Global Range Test";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  qc_temp_spike {
    Byte _FillValue 127;
    String _Unsigned "false";
    Byte actual_range 1, 4;
    String flag_meanings "NaN/0 No QC was performed, 1 Good data, 2 Suspect data, 4 Bad data, 5 Corrected data, 9 Missing value";
    String infoUrl "https://github.com/BerringDC/BDC_qc#spike-test";
    String ioos_category "Quality";
    String long_name "Flag Temperature Spike Test";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  qc_rollover {
    Byte _FillValue 127;
    String _Unsigned "false";
    Byte actual_range 1, 3;
    String flag_meanings "NaN/0 No QC was performed, 1 Good data, 2 Suspect data, 4 Bad data, 5 Corrected data, 9 Missing value";
    String infoUrl "https://github.com/BerringDC/BDC_qc#digit-rollover-test";
    String ioos_category "Quality";
    String long_name "Flag Rollover Test";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  qc_temp_stuck {
    Byte _FillValue 127;
    String _Unsigned "false";
    Byte actual_range 1, 4;
    String flag_meanings "NaN/0 No QC was performed, 1 Good data, 2 Suspect data, 4 Bad data, 5 Corrected data, 9 Missing value";
    String infoUrl "https://github.com/BerringDC/BDC_qc#stuck-value-flat-line-test";
    String ioos_category "Quality";
    String long_name "Flag Temperature Stuck Test";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  qc_RoC {
    Byte _FillValue 127;
    String _Unsigned "false";
    Byte actual_range 1, 3;
    String flag_meanings "NaN/0 No QC was performed, 1 Good data, 2 Suspect data, 4 Bad data, 5 Corrected data, 9 Missing value";
    String infoUrl "https://github.com/BerringDC/BDC_qc#rate-of-change-test";
    String ioos_category "Quality";
    String long_name "Flag Rate of Change Test";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  qc_clima {
    Byte _FillValue 127;
    String _Unsigned "false";
    Byte actual_range 1, 3;
    String flag_meanings "NaN/0 No QC was performed, 1 Good data, 2 Suspect data, 4 Bad data, 5 Corrected data, 9 Missing value";
    String infoUrl "https://github.com/BerringDC/BDC_qc#climatology-test";
    String ioos_category "Quality";
    String long_name "Flag Climatology Test";
    Byte valid_max 9;
    Byte valid_min 0;
  }
  qc_mud {
    Byte _FillValue 127;
    String _Unsigned "false";
    Byte actual_range 1, 3;
    String flag_meanings "NaN/0 No QC was performed, 1 Good data, 2 Suspect data, 4 Bad data, 5 Corrected data, 9 Missing value";
    String infoUrl "https://github.com/BerringDC/BDC_qc#mud-test";
    String ioos_category "Quality";
    String long_name "Flag Mud Test";
    Byte valid_max 9;
    Byte valid_min 0;
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Point";
    String Conventions "COARDS, CF-1.6, ACDD-1.3, ISSCFG";
    String defaultDataQuery "tow_id,segment_type,time,latitude,longitude,depth,temperature,sensor_type&time>=max(time)-7days";
    Float64 Easternmost_Easting 0.0;
    String featureType "Point";
    Float64 geospatial_lat_max 100.666;
    Float64 geospatial_lat_min 0.0;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 0.0;
    Float64 geospatial_lon_min -100.666;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 10332.0;
    Float64 geospatial_vertical_min 1.0005;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2025-04-01T07:11:07Z (local files)
2025-04-01T07:11:07Z https://erddap.emolt.net/erddap/tabledap/eMOLT_RT_QAQC.html";
    String infoUrl "https://emolt.org/";
    String institution "Environmental Monitors on Lobster Traps and Large Trawlers";
    String keywords "arctic, citizen science, citizen_science, data, Earth Science > Oceans > Salinity/Density > Salinity, fish, fishing, gear, in-situ, industry, latitude, longitude, ocean, pressure, profile, program, salinity, science, sea, sea_water_practical_salinity, seawater, segment, sensor, situ, temperature, time, type, vessel, vessel_gear_type, water";
    String keywords_vocabulary "GCMD Science Keywords";
    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 Northernmost_Northing 100.666;
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 0.0;
    String standard_name_vocabulary "CF Standard Name Table v55";
    String subsetVariables "segment_type, sensor_type";
    String summary "QC/QA APPLIED.";
    String time_coverage_end "2025-03-31T03:28:13Z";
    String time_coverage_start "2018-03-23T09:58:51Z";
    String title "eMOLT Data with flags and QC/QA";
    Float64 Westernmost_Easting -100.666;
  }
}

 

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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