Aggregated by Ocean Data Network
Brought to you by ODN
|
Fisheries Ocean Data ERDDAP
Aggregated by Ocean Data Network |
Brought to you by ODN |
| Dataset Title: | Fixed gears: Oceanographic data from fishing vessels
|
| Institution: | Ocean Data Network (Dataset ID: ODN_FixedGear_FV_NRT) |
| Information: | Summary
| License
| FGDC
| ISO 19115
| Metadata
| Background
| Subset
| Files
| Make a graph
|
Attributes {
s {
time {
String _CoordinateAxisType "Time";
Float64 actual_range 1.5470953e+9, 1.7467409e+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 units "seconds since 1970-01-01T00:00:00Z";
}
latitude {
String _CoordinateAxisType "Lat";
Float32 _FillValue NaN;
Float32 actual_range -41.2595, 58.15275;
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 -70.63255, 173.283;
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 1.025, 357.205;
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 3.04859, 99.9999;
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";
}
salinity {
Float32 _FillValue NaN;
Float32 actual_range 4.865, 34.942;
Float64 colorBarMaximum 36.0;
Float64 colorBarMinimum 32.0;
String ioos_category "Salinity";
String long_name "Sea Water Practical Salinity";
String standard_name "sea_water_practical_salinity";
String units "PSU";
}
sensor_type {
String conventions "SensorML";
String ioos_category "Identifier";
String long_name "Sensor Type";
String metadata_link "https://oceandata.net/data/";
}
vessel_gear_type {
String conventions "ISSCFG";
String ioos_category "Identifier";
String long_name "Fishing Gear Used as a Sensor Platform";
String metadata_link "https://www.fao.org/3/a-bt987e.pdf";
}
data_collection_program {
String ioos_category "Identifier";
String long_name "Data Collection Program or Industry Body";
}
vessel_id {
Int32 _FillValue 2147483647;
Int32 actual_range 9, 107;
String ioos_category "Identifier";
String long_name "Confidential Unique Vessel Identifier";
}
tow_id {
Int32 _FillValue 2147483647;
Int32 actual_range 1, 26575;
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";
String metadata_link "https://oceandata.net/data/";
}
platform_code {
String ioos_category "Identifier";
String long_name "Platform Code";
}
platform_name {
String ioos_category "Identifier";
String long_name "Platform Name";
}
WMO_ID {
String ioos_category "Identifier";
String long_name "Confidential Unique WMO Identifier";
}
DOI {
String ioos_category "Identifier";
String long_name "Digital Object Identifier";
}
qc_vessel_region {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 1, 1;
String comment "Vessel Region Control Test: Verifies that the data point location is within the expected operating region for the vessel. Flag=1 (Good): Location is within the vessel's normal operating area. Flag=3 (Suspect): Location is near the boundary of expected region. Flag=4 (Bad): Location is far outside the vessel's expected operating region, suggesting a GPS error or vessel misidentification.";
String flag_meanings "no_qc_performed good_data suspect_data bad_data corrected_data missing_value";
Byte flag_values 0, 1, 3, 4, 5, 9;
String ioos_category "Quality";
String long_name "QC Flag - Vessel Region Test";
String references "https://github.com/BerringDC/BDC_qc#vessel-id-control-test";
String standard_name "quality_flag";
Byte valid_max 9;
Byte valid_min 0;
}
qc_gear_type {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 1, 4;
String comment "Gear Type Control Test: Validates that the depth profile characteristics match the expected behavior for the declared fishing gear type (e.g., trawl, longline, pot). Flag=1 (Good): Profile shape and depth range are consistent with gear type. Flag=3 (Suspect): Profile shows minor deviations from expected gear behavior. Flag=4 (Bad): Profile characteristics are incompatible with declared gear type, suggesting gear misclassification or sensor malfunction.";
String flag_meanings "no_qc_performed good_data suspect_data bad_data corrected_data missing_value";
Byte flag_values 0, 1, 3, 4, 5, 9;
String ioos_category "Quality";
String long_name "QC Flag - Gear Type Test";
String references "https://github.com/BerringDC/BDC_qc#gear-type-control-test";
String standard_name "quality_flag";
Byte valid_max 9;
Byte valid_min 0;
}
qc_date {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 1, 1;
String comment "Impossible Date Test: Checks that timestamps are valid and within expected bounds. Flag=1 (Good): Date/time is valid and within reasonable range (after sensor deployment, before current time). Flag=3 (Suspect): Date/time is valid but unusually close to deployment date or appears to have timezone issues. Flag=4 (Bad): Date is impossible (e.g., future dates, dates before sensor manufacture, invalid month/day values).";
String flag_meanings "no_qc_performed good_data suspect_data bad_data corrected_data missing_value";
Byte flag_values 0, 1, 3, 4, 5, 9;
String ioos_category "Quality";
String long_name "QC Flag - Impossible Date Test";
String references "https://github.com/BerringDC/BDC_qc#impossible-date-test";
String standard_name "quality_flag";
Byte valid_max 9;
Byte valid_min 0;
}
qc_location {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 1, 1;
String comment "Impossible Location Test: Validates that latitude and longitude coordinates are physically possible and over water. Flag=1 (Good): Location is valid and over ocean/sea. Flag=3 (Suspect): Location is valid but near coastline or in shallow water where fishing vessel operation is unusual. Flag=4 (Bad): Location is impossible (lat outside -90 to 90, lon outside -180 to 180), on land, or NULL/missing coordinates.";
String flag_meanings "no_qc_performed good_data suspect_data bad_data corrected_data missing_value";
Byte flag_values 0, 1, 3, 4, 5, 9;
String ioos_category "Quality";
String long_name "QC Flag - Impossible Location Test";
String references "https://github.com/BerringDC/BDC_qc#impossible-location-test";
String standard_name "quality_flag";
Byte valid_max 9;
Byte valid_min 0;
}
qc_speed {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 1, 1;
String comment "Impossible Speed Test: Calculates vessel speed between consecutive GPS positions and checks if it's physically possible for a fishing vessel. Flag=1 (Good): Calculated speed is within normal fishing vessel range (typically 0-25 knots). Flag=3 (Suspect): Speed is high but possible (25-40 knots), may indicate vessel transit or GPS interpolation issues. Flag=4 (Bad): Speed exceeds physical possibility for a vessel (>40 knots), indicating GPS errors, timestamp problems, or data from different vessels merged incorrectly.";
String flag_meanings "no_qc_performed good_data suspect_data bad_data corrected_data missing_value";
Byte flag_values 0, 1, 3, 4, 5, 9;
String ioos_category "Quality";
String long_name "QC Flag - Impossible Speed Test";
String references "https://github.com/BerringDC/BDC_qc#impossible-speed-test";
String standard_name "quality_flag";
Byte valid_max 9;
Byte valid_min 0;
}
qc_global_range {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 1, 4;
String comment "Global Range Test: Checks that temperature and depth values fall within physically plausible global ranges. Flag=1 (Good): Temperature is within -2 to 35 degrees C and depth is within 0 to 2000m. Flag=3 (Suspect): Values are near the boundaries of expected ranges. Flag=4 (Bad): Values exceed global physical limits (e.g., temperature below -2C or above 35C, negative depth, depth exceeding sensor rating).";
String flag_meanings "no_qc_performed good_data suspect_data bad_data corrected_data missing_value";
Byte flag_values 0, 1, 3, 4, 5, 9;
String ioos_category "Quality";
String long_name "QC Flag - Global Range Test";
String references "https://github.com/BerringDC/BDC_qc#global-range-test";
String standard_name "quality_flag";
Byte valid_max 9;
Byte valid_min 0;
}
qc_temp_spike {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 1, 1;
String comment "Temperature Spike Test: Detects sudden, isolated temperature changes that are physically unlikely given the surrounding measurements. A spike is identified when a single point deviates significantly from both its predecessor and successor. Flag=1 (Good): No spike detected, temperature change is gradual and consistent. Flag=3 (Suspect): Small spike detected (1-2 degrees C difference), could be real thermocline crossing or minor sensor noise. Flag=4 (Bad): Large spike detected (>2 degrees C), likely sensor malfunction, electrical interference, or data transmission error.";
String flag_meanings "no_qc_performed good_data suspect_data bad_data corrected_data missing_value";
Byte flag_values 0, 1, 3, 4, 5, 9;
String ioos_category "Quality";
String long_name "QC Flag - Temperature Spike Test";
String references "https://github.com/BerringDC/BDC_qc#spike-test";
String standard_name "quality_flag";
Byte valid_max 9;
Byte valid_min 0;
}
qc_sal_spike {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 1, 4;
String comment "Salinity Spike Test: Detects sudden, isolated salinity changes that are physically unlikely given the surrounding measurements. A spike is identified when a single point deviates significantly from both its predecessor and successor. Flag=1 (Good): No spike detected, salinity change is gradual and consistent. Flag=3 (Suspect): Small spike detected, could be real halocline crossing or minor sensor noise. Flag=4 (Bad): Large spike detected, likely sensor malfunction, electrical interference, or data transmission error.";
String flag_meanings "no_qc_performed good_data suspect_data bad_data corrected_data missing_value";
Byte flag_values 0, 1, 3, 4, 5, 9;
String ioos_category "Quality";
String long_name "QC Flag - Salinity Spike Test";
String references "https://github.com/BerringDC/BDC_qc#spike-test";
String standard_name "quality_flag";
Byte valid_max 9;
Byte valid_min 0;
}
qc_rollover {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 1, 3;
String comment "Digit Rollover Test: Detects sensor digit rollover errors where values suddenly jump when they exceed the sensor's digital range (e.g., jumping from 99.9 to 0.0 instead of continuing to 100.0). Flag=1 (Good): No rollover pattern detected in the data. Flag=3 (Suspect): Pattern resembles possible rollover but could be real environmental change. Flag=4 (Bad): Clear rollover signature detected - sudden large jump that resets to near-zero or sensor minimum, indicating sensor range exceeded or firmware bug.";
String flag_meanings "no_qc_performed good_data suspect_data bad_data corrected_data missing_value";
Byte flag_values 0, 1, 3, 4, 5, 9;
String ioos_category "Quality";
String long_name "QC Flag - Digit Rollover Test";
String references "https://github.com/BerringDC/BDC_qc#digit-rollover-test";
String standard_name "quality_flag";
Byte valid_max 9;
Byte valid_min 0;
}
qc_temp_stuck {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 1, 4;
String comment "Stuck Value (Flat Line) Test: Identifies when the temperature sensor reports identical values for an extended period, which is physically unlikely in a moving ocean environment. Flag=1 (Good): Normal variability in temperature readings. Flag=3 (Suspect): Temperature shows unusually low variability over several readings (variance less than 0.01 degrees C), could indicate sensor in thermally stable layer or beginning of sensor failure. Flag=4 (Bad): Temperature is completely constant (zero variance) over many consecutive readings, indicating sensor malfunction, frozen/stuck sensor, or data transmission repeating same value.";
String flag_meanings "no_qc_performed good_data suspect_data bad_data corrected_data missing_value";
Byte flag_values 0, 1, 3, 4, 5, 9;
String ioos_category "Quality";
String long_name "QC Flag - Temperature Stuck/Flat Line Test";
String references "https://github.com/BerringDC/BDC_qc#stuck-value-flat-line-test";
String standard_name "quality_flag";
Byte valid_max 9;
Byte valid_min 0;
}
qc_sal_stuck {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 1, 4;
String comment "Stuck Value (Flat Line) Test: Identifies when the salinity sensor reports identical values for an extended period, which is physically unlikely in a moving ocean environment. Flag=1 (Good): Normal variability in salinity readings. Flag=3 (Suspect): Salinity shows unusually low variability over several readings, could indicate sensor in stable water mass or beginning of sensor failure. Flag=4 (Bad): Salinity is completely constant (zero variance) over many consecutive readings, indicating sensor malfunction, frozen/stuck sensor, or data transmission repeating same value.";
String flag_meanings "no_qc_performed good_data suspect_data bad_data corrected_data missing_value";
Byte flag_values 0, 1, 3, 4, 5, 9;
String ioos_category "Quality";
String long_name "QC Flag - Salinity Stuck/Flat Line Test";
String references "https://github.com/BerringDC/BDC_qc#stuck-value-flat-line-test";
String standard_name "quality_flag";
Byte valid_max 9;
Byte valid_min 0;
}
qc_RoC {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 1, 3;
String comment "Rate of Change (RoC) Test: Evaluates whether the rate of temperature change over time or depth is physically realistic for the ocean environment. Unlike the spike test which looks at isolated points, this test examines sustained trends. Flag=1 (Good): Temperature change rate is within expected oceanographic bounds (typically less than 1 degree C per 10m depth or per minute). Flag=3 (Suspect): Rate of change is elevated but possible in strong thermoclines or frontal zones. Flag=4 (Bad): Rate of change exceeds physical possibility, indicating sensor drift, calibration issues, or data corruption.";
String flag_meanings "no_qc_performed good_data suspect_data bad_data corrected_data missing_value";
Byte flag_values 0, 1, 3, 4, 5, 9;
String ioos_category "Quality";
String long_name "QC Flag - Rate of Change Test";
String references "https://github.com/BerringDC/BDC_qc#rate-of-change-test";
String standard_name "quality_flag";
Byte valid_max 9;
Byte valid_min 0;
}
qc_clima {
Byte _FillValue 127;
String _Unsigned "false";
Byte actual_range 1, 3;
String comment "Climatology Test: Compares measured temperature against historical climatological values (World Ocean Atlas or regional climatologies) for the same location, depth, and time of year. Flag=1 (Good): Temperature is within 2 standard deviations of climatological mean for location/depth/season. Flag=3 (Suspect): Temperature is 2-3 standard deviations from climatological mean, possible but unusual - could indicate real anomaly (marine heatwave, upwelling) or measurement error. Flag=4 (Bad): Temperature exceeds 3 standard deviations from climatological mean, highly unlikely to be correct unless verified unusual conditions exist.";
String flag_meanings "no_qc_performed good_data suspect_data bad_data corrected_data missing_value";
Byte flag_values 0, 1, 3, 4, 5, 9;
String ioos_category "Quality";
String long_name "QC Flag - Climatology Test";
String references "https://github.com/BerringDC/BDC_qc#climatology-test";
String standard_name "quality_flag";
Byte valid_max 9;
Byte valid_min 0;
}
}
NC_GLOBAL {
String _NCProperties "version=2,netcdf=4.9.4-development,hdf5=1.14.2";
String cdm_data_type "Point";
String contact_email "erddap@oceandata.net";
String contact_name "Carles Castro Muniain";
String Conventions "COARDS, CF-1.6, ACDD-1.3, ISSCFG";
String creator_name "Carles Castro Muniain";
String dataset_status "OnGoing";
String defaultDataQuery "time,latitude,longitude,depth,temperature,salinity,sensor_type,vessel_gear_type,data_collection_program,vessel_id,tow_id,segment_type,platform_code,platform_name,DOI,WMO_ID&time>=max(time)-7days";
Float64 Easternmost_Easting 173.283;
String featureType "Point";
Float64 geospatial_lat_max 58.15275;
Float64 geospatial_lat_min -41.2595;
String geospatial_lat_units "degrees_north";
Float64 geospatial_lon_max 173.283;
Float64 geospatial_lon_min -70.63255;
String geospatial_lon_units "degrees_east";
Float64 geospatial_vertical_max 357.205;
Float64 geospatial_vertical_min 1.025;
String geospatial_vertical_positive "down";
String geospatial_vertical_units "m";
String history
"2025-12-17T22:52:47Z (local files)
2025-12-17T22:52:47Z https://erddap.oceandata.net/erddap/erddap/tabledap/ODN_FixedGear_FV_NRT.html";
String infoUrl "https://oceandata.net/data/";
String institution "Ocean Data Network";
String keywords "data, Earth Science >, fish, fishing, gear, industry, latitude, longitude, ocean, Oceans >, pressure, profile, program, Salinity, salinity, Salinity/Density >, science, sea, seawater";
String license
"<h2>Ocean Data Network (ODN) Data License</h2>
<p>This data is provided by the <strong>Ocean Data Network (ODN)</strong> and its partners under the following terms:</p>
<h3>License: Creative Commons Attribution 4.0 International (CC BY 4.0)</h3>
<p>You are free to:</p>
<ul>
<li><strong>Share</strong> â€" copy and redistribute the material in any medium or format</li>
<li><strong>Adapt</strong> â€" remix, transform, and build upon the material for any purpose, even commercially</li>
</ul>
<p>Under the following terms:</p>
<ul>
<li><strong>Attribution</strong> â€" You must give appropriate credit, provide a link to the license, and indicate if changes were made.</li>
</ul>
<p>Full license details: <a href=\"https://creativecommons.org/licenses/by/4.0/\">CC BY 4.0</a></p>
<h3>Citation</h3>
<p>When using this data, please cite:</p>
<blockquote>
Ocean Data Network (ODN). [Dataset Title]. Retrieved from [URL]. Accessed on [Date].
</blockquote>
<h3>Disclaimer</h3>
<p>Data is provided \"as is\" without warranty of any kind. ODN and its partners are not liable for any errors or omissions in the data.</p>";
Float64 Northernmost_Northing 58.15275;
String sourceUrl "(local files)";
Float64 Southernmost_Northing -41.2595;
String standard_name_vocabulary "CF Standard Name Table v55";
String subsetVariables "sensor_type, vessel_gear_type, data_collection_program, segment_type, platform_code, platform_name, DOI, WMO_ID";
String summary "Ocean data collected via fixed gear fishing vessels. Location does not change over a fishing operation. Aggregated from both science and industry programs. Basic QC routine has been applied, and all flagged data is removed.";
String time_coverage_end "2025-05-08T21:48:20Z";
String time_coverage_start "2019-01-10T04:41:40Z";
String title "Fixed gears: Oceanographic data from fishing vessels";
Float64 Westernmost_Easting -70.63255;
}
}
Data Access Protocol (DAP) and its
selection constraints.
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.