ODN Fisheries Ocean Data ERDDAP
Aggregated by Ocean Data Network 		?    
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Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL _NCProperties String version=2,netcdf=4.9.4-development,hdf5=1.14.2
attribute NC_GLOBAL acknowledgement String Data collected by the skippers and crews of the Maine Coast Fishermen's Association (MCFA) vessels, and processed and published by Ocean Data Network.
attribute NC_GLOBAL cdm_data_type String Trajectory
attribute NC_GLOBAL cdm_trajectory_variables String tow_id, vessel_id, vessel_gear_type
attribute NC_GLOBAL comment String date_modified is written into every data file by the publishing pipeline. time_coverage_duration and time_coverage_resolution are not given: the dataset grows continuously and the sampling interval depends on the logger mode (seconds while profiling, minutes while on the bottom).
attribute NC_GLOBAL Conventions String COARDS, CF-1.10, ACDD-1.3
attribute NC_GLOBAL creator_email String erddap at oceandata.net
attribute NC_GLOBAL creator_institution String Ocean Data Network
attribute NC_GLOBAL creator_name String Ocean Data Network
attribute NC_GLOBAL creator_type String institution
attribute NC_GLOBAL creator_url String https://www.oceandata.net (external link)
attribute NC_GLOBAL dataset_status String OnGoing
attribute NC_GLOBAL date_created String 2024-09-07
attribute NC_GLOBAL date_modified String 2026-11-04T14:59:34Z
attribute NC_GLOBAL defaultDataQuery String tow_id,time,latitude,longitude,pressure,depth,temperature,segment_type,vessel_id,vessel_gear_type,sensor_manufacturer,model,sensor_serial,calibration_date,WMO_ID,program,collaborators,du_id,WIGOS_ID&time>=max(time)-7days
attribute NC_GLOBAL defaultGraphQuery String longitude,latitude,temperature&time>=max(time)-7days&qc_aggregate=1&.draw=markers
attribute NC_GLOBAL Easternmost_Easting double -67.16976
attribute NC_GLOBAL featureType String Trajectory
attribute NC_GLOBAL geospatial_lat_max double 44.298225
attribute NC_GLOBAL geospatial_lat_min double 40.5751
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -67.16976
attribute NC_GLOBAL geospatial_lon_min double -71.7414
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL geospatial_vertical_max double 320.2
attribute NC_GLOBAL geospatial_vertical_min double 1.0
attribute NC_GLOBAL geospatial_vertical_positive String down
attribute NC_GLOBAL geospatial_vertical_units String m
attribute NC_GLOBAL infoUrl String https://oceandata.net/projects/ (external link)
attribute NC_GLOBAL institution String Ocean Data Network
attribute NC_GLOBAL instrument String ZebraTech Moana TD-1000 and TD-200 temperature-depth loggers
attribute NC_GLOBAL keywords String Earth Science > Oceans > Ocean Pressure > Water Pressure, Earth Science > Oceans > Ocean Temperature > Water Temperature, fishing gear, fishing vessel, Maine Coast Fishermen's Association, near real time, pressure, profile, quality flag, sea_water_pressure, sea_water_temperature, temperature, trajectory, vessel of opportunity
attribute NC_GLOBAL keywords_vocabulary String GCMD Science Keywords
attribute NC_GLOBAL license String These data may be used and redistributed free of charge provided the source is acknowledged (see acknowledgement). They are provided as is, are not intended for legal use or safety of navigation, and may contain inaccuracies: check the qc_* variables before use. Neither the data provider nor the publisher makes any warranty as to their accuracy, completeness or fitness for a particular purpose.
attribute NC_GLOBAL naming_authority String net.oceandata
attribute NC_GLOBAL Northernmost_Northing double 44.298225
attribute NC_GLOBAL platform String fishing vessel
attribute NC_GLOBAL processing_level String Near-real-time. Automated FVON QC tests applied as flags; no sample removed, corrected or interpolated.
attribute NC_GLOBAL program String Ocean Data Network
attribute NC_GLOBAL project String Maine Coast Fishermen's Association fishing vessel observations
attribute NC_GLOBAL publisher_email String erddap at oceandata.net
attribute NC_GLOBAL publisher_institution String Ocean Data Network
attribute NC_GLOBAL publisher_name String Ocean Data Network
attribute NC_GLOBAL publisher_type String institution
attribute NC_GLOBAL publisher_url String https://www.oceandata.net (external link)
attribute NC_GLOBAL references String https://github.com/FVON-GOOS/qc-flags (external link) ; https://fvon.org (external link) ; flag scale: IOC Manuals and Guides 54 (IODE quality flag scheme)
attribute NC_GLOBAL source String In situ temperature-depth loggers attached to commercial fishing gear (vessels of opportunity)
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL Southernmost_Northing double 40.5751
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v79
attribute NC_GLOBAL subsetVariables String vessel_id, vessel_gear_type, sensor_manufacturer, model, program, collaborators, segment_type, qc_aggregate, qc_gear_type, qc_date, qc_location, qc_speed, qc_global_range, qc_temp_spike, qc_rollover, qc_temp_stuck, qc_RoC, qc_drift, qc_mud, qc_response_time, qc_clima, qc_calibration_date
attribute NC_GLOBAL summary String Near-real-time subsurface sea water temperature and pressure measured by autonomous temperature-depth loggers (ZebraTech Moana TD) attached to the fishing gear of commercial vessels taking part in the Maine Coast Fishermen's Association (MCFA) programme, in the Gulf of Maine. Gears: trawls and gillnets. Each trajectory (tow_id) is one gear deployment: a down-profile while the gear is set, a bottom or fishing phase, and an up-profile when it is hauled (segment_type). Data are offloaded to a deck unit when the gear returns on board and published within hours. Every sample is kept: the automated FVON quality-control tests only flag data (qc_* variables, scale 0 not evaluated, 1 good, 3 suspect, 4 bad, 9 missing value); nothing is removed or adjusted. Vessels are anonymised.
attribute NC_GLOBAL testOutOfDate String now-2days
attribute NC_GLOBAL time_coverage_end String 2026-11-06T13:58:49Z
attribute NC_GLOBAL time_coverage_start String 2024-05-21T13:23:40Z
attribute NC_GLOBAL title String Maine Coast Fishermen's Association: near-real-time sea temperature and pressure from sensors on fishing gear, with QC flags
attribute NC_GLOBAL Westernmost_Easting double -71.7414
variable tow_id int
attribute tow_id _ChunkSizes uint 9853
attribute tow_id actual_range int 18695, 70086
attribute tow_id cf_role String trajectory_id
attribute tow_id comment String One trajectory is one tow: a single deployment of fishing gear carrying one logger.
attribute tow_id ioos_category String Identifier
attribute tow_id long_name String Unique Fishing Operation (Tow) Identifier
variable time double
attribute time _ChunkSizes uint 9853
attribute time _CoordinateAxisType String Time
attribute time actual_range double 1.71629782E9, 1.793973529E9
attribute time axis String T
attribute time comment String UTC.
attribute time ioos_category String Time
attribute time long_name String Time of Measurement (UTC)
attribute time standard_name String time
attribute time time_origin String 01-JAN-1970 00:00:00
attribute time units String seconds since 1970-01-01T00:00:00Z
variable latitude double
attribute latitude _ChunkSizes uint 9853
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue double NaN
attribute latitude actual_range double 40.5751, 44.298225
attribute latitude axis String Y
attribute latitude comment String Vessel GPS position from the deck unit, assigned to the gear. Fixed gear gets one position per phase: first fix for the down-profile, last fix for the up-profile, their mean for the fishing phase. WGS84.
attribute latitude ioos_category String Location
attribute latitude long_name String Latitude
attribute latitude standard_name String latitude
attribute latitude units String degrees_north
attribute latitude valid_max double 90.0
attribute latitude valid_min double -90.0
variable longitude double
attribute longitude _ChunkSizes uint 9853
attribute longitude _CoordinateAxisType String Lon
attribute longitude _FillValue double NaN
attribute longitude actual_range double -71.7414, -67.16976
attribute longitude axis String X
attribute longitude comment String Vessel GPS position from the deck unit, assigned to the gear. Fixed gear gets one position per phase: first fix for the down-profile, last fix for the up-profile, their mean for the fishing phase. WGS84.
attribute longitude ioos_category String Location
attribute longitude long_name String Longitude
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
attribute longitude valid_max double 180.0
attribute longitude valid_min double -180.0
variable pressure double
attribute pressure _ChunkSizes uint 9853
attribute pressure _FillValue double NaN
attribute pressure accuracy String 0.5 % of the pressure rating of the logger model (TD-200: 200 dbar, TD-1000: 1000 dbar)
attribute pressure actual_range double 1.01, 323.0
attribute pressure ancillary_variables String qc_aggregate qc_global_range qc_gear_type
attribute pressure comment String Vertical coordinate of the trajectory. Samples shallower than 1 dbar are not published.
attribute pressure ioos_category String Pressure
attribute pressure long_name String Sea Water Pressure
attribute pressure resolution double 0.1
attribute pressure standard_name String sea_water_pressure
attribute pressure units String dbar
attribute pressure valid_min double -5.0
variable depth double
attribute depth _ChunkSizes uint 9853
attribute depth _CoordinateAxisType String Height
attribute depth _CoordinateZisPositive String down
attribute depth _FillValue double NaN
attribute depth actual_range double 1.0, 320.2
attribute depth axis String Z
attribute depth comment String Computed from sea pressure and the sample latitude with TEOS-10 (gsw.z_from_p: standard ocean of 0 degC and 35 g/kg, latitude-dependent gravity, no in-situ density correction; difference from true depth below 0.2 %). Positive down, rounded to 0.01 m. Missing where the sample has no position.
attribute depth ioos_category String Location
attribute depth long_name String Depth
attribute depth positive String down
attribute depth references String https://www.teos-10.org/pubs/gsw/html/gsw_z_from_p.html (external link)
attribute depth resolution double 0.01
attribute depth standard_name String depth
attribute depth units String m
variable temperature double
attribute temperature _ChunkSizes uint 9853
attribute temperature _FillValue double NaN
attribute temperature accuracy double 0.05
attribute temperature actual_range double -10.0, 55.535
attribute temperature ancillary_variables String qc_aggregate qc_global_range qc_temp_spike qc_rollover qc_temp_stuck qc_RoC qc_drift qc_mud qc_response_time qc_clima qc_calibration_date
attribute temperature colorBarMaximum double 30.0
attribute temperature colorBarMinimum double -2.0
attribute temperature comment String In situ temperature. valid_min and valid_max are the limits of the gross range test.
attribute temperature ioos_category String Temperature
attribute temperature long_name String Sea Water Temperature
attribute temperature resolution double 0.001
attribute temperature standard_name String sea_water_temperature
attribute temperature units String degree_C
attribute temperature valid_max double 35.0
attribute temperature valid_min double -2.0
variable segment_type byte
attribute segment_type _ChunkSizes uint 9853
attribute segment_type _FillValue byte 127
attribute segment_type actual_range byte 1, 3
attribute segment_type comment String 1 = gear being set (down-profile), 2 = gear being hauled (up-profile), 3 = gear fishing at depth.
attribute segment_type flag_meanings String profiling_down profiling_up fishing
attribute segment_type flag_values byte 1, 2, 3
attribute segment_type ioos_category String Identifier
attribute segment_type long_name String Phase of the Fishing Operation
variable calibration_date double
attribute calibration_date _ChunkSizes uint 9853
attribute calibration_date actual_range double 19509.0, 20627.0
attribute calibration_date calendar String proleptic_gregorian
attribute calibration_date comment String Most recent calibration of the logger identified by sensor_serial before the sample was taken. Missing where unknown.
attribute calibration_date ioos_category String Time
attribute calibration_date long_name String Last Calibration Date of the Sensor
attribute calibration_date time_origin String 01-JAN-1970 00:00:00
attribute calibration_date units String seconds since 1970-01-01T00:00:00Z
variable program String
attribute program _ChunkSizes uint 9853, 35
attribute program ioos_category String Identifier
attribute program long_name String Program Name
variable collaborators String
attribute collaborators _ChunkSizes uint 9853, 35
attribute collaborators ioos_category String Identifier
attribute collaborators long_name String Data Collection Partner
variable vessel_id int
attribute vessel_id _ChunkSizes uint 9853
attribute vessel_id actual_range int 11, 300
attribute vessel_id comment String Stable pseudonymous identifier of the fishing vessel. Vessel names are confidential; in OceanOPS the same vessels are registered under pseudonyms (FVON_ODN_n).
attribute vessel_id ioos_category String Identifier
attribute vessel_id long_name String Anonymised Vessel Identifier
variable vessel_gear_type String
attribute vessel_gear_type _ChunkSizes uint 9853, 34
attribute vessel_gear_type comment String FAO International Standard Statistical Classification of Fishing Gear (ISSCFG) category.
attribute vessel_gear_type ioos_category String Identifier
attribute vessel_gear_type long_name String Fishing Gear Carrying the Sensor
attribute vessel_gear_type references String https://www.fao.org/3/a-bt987e.pdf (external link)
variable sensor_manufacturer String
attribute sensor_manufacturer _ChunkSizes uint 9853, 9
attribute sensor_manufacturer ioos_category String Identifier
attribute sensor_manufacturer long_name String Sensor Manufacturer
variable model String
attribute model _ChunkSizes uint 9853, 7
attribute model comment String ZebraTech Moana model; the number is the pressure rating in dbar (TD-200, TD-1000).
attribute model ioos_category String Identifier
attribute model long_name String Sensor Model
variable sensor_serial String
attribute sensor_serial _ChunkSizes uint 9853, 4
attribute sensor_serial comment String Manufacturer serial number of the logger. Separates simultaneous tows of one vessel and ties calibration_date to an instrument.
attribute sensor_serial ioos_category String Identifier
attribute sensor_serial long_name String Sensor Serial Number
variable WMO_ID String
attribute WMO_ID _ChunkSizes uint 9853, 7
attribute WMO_ID comment String OceanOPS/WMO platform identifier used for GTS distribution. One identifier is issued per sensor deployed on a vessel (not per vessel), so a vessel working several loggers carries several identifiers and simultaneous tows have different ones. Empty until OceanOPS has issued the identifier.
attribute WMO_ID ioos_category String Identifier
attribute WMO_ID long_name String WMO Platform Identifier (OceanOPS)
attribute WMO_ID references String https://www.ocean-ops.org (external link)
variable du_id int
attribute du_id _ChunkSizes uint 9853
attribute du_id actual_range int 286, 949
attribute du_id comment String Internal identifier of the deck unit (data logger receiver) on board the vessel at the time of the tow.
attribute du_id ioos_category String Identifier
attribute du_id long_name String Deck Unit Identifier
variable WIGOS_ID String
attribute WIGOS_ID _ChunkSizes uint 9853, 17
attribute WIGOS_ID comment String WMO Integrated Global Observing System identifier of the platform (0-22000-0-<WMO_ID>). Empty until issued.
attribute WIGOS_ID ioos_category String Identifier
attribute WIGOS_ID long_name String WIGOS Station Identifier
attribute WIGOS_ID references String https://www.ocean-ops.org (external link)
variable qc_aggregate byte
attribute qc_aggregate _ChunkSizes uint 9853
attribute qc_aggregate _FillValue byte 127
attribute qc_aggregate actual_range byte 1, 4
attribute qc_aggregate comment String Worst result (highest of 1, 3, 4) of the per-sample tests below for this sample. A sample with no position (qc_location = 9) is unusable and gets qc_aggregate = 4. qc_clima and qc_calibration_date are reported separately and do not feed it.
attribute qc_aggregate flag_meanings String not_evaluated good suspect bad missing_value
attribute qc_aggregate flag_values byte 0, 1, 3, 4, 9
attribute qc_aggregate ioos_category String Quality
attribute qc_aggregate long_name String Aggregate Quality Flag
attribute qc_aggregate references String https://github.com/FVON-GOOS/qc-flags (external link)
attribute qc_aggregate standard_name String aggregate_quality_flag
attribute qc_aggregate valid_max byte 9
attribute qc_aggregate valid_min byte 0
variable qc_gear_type byte
attribute qc_gear_type _ChunkSizes uint 9853
attribute qc_gear_type _FillValue byte 127
attribute qc_gear_type actual_range byte 1, 4
attribute qc_gear_type comment String One verdict per tow, computed on the RAW GPS fixes of the deck unit. Two gear classes exist: mobile (trawls, seines) and fixed; longlines, set longlines, gillnets, traps and pots are all processed as fixed gear. No sample of the tow has a position, or first and last fix both missing: bad (4). Fixed gear whose first and last real GPS fixes are further apart than 10 x the maximum pressure (in metres): suspect (3); fixed gear with fewer than two fixes: not evaluated (0). Mobile gear with only one of the first/last fix missing: suspect (3). Mobile gear starting and ending less than 200 m apart while averaging more than 10 km/h along the track, or with zero duration: suspect (3). Seines and handlines: straight-line speed between first and last fix above 10 km/h, or zero duration: suspect (3). Where an operator has corrected a tow position afterwards (for example gear set or hauled by another vessel), the published position is the corrected one and this flag still records that the raw fixes were suspect.
attribute qc_gear_type flag_meanings String not_evaluated good suspect bad missing_value
attribute qc_gear_type flag_values byte 0, 1, 3, 4, 9
attribute qc_gear_type ioos_category String Quality
attribute qc_gear_type long_name String Gear Type Control Test Flag
attribute qc_gear_type references String https://github.com/FVON-GOOS/qc-flags/discussions/12 (external link)
attribute qc_gear_type standard_name String quality_flag
attribute qc_gear_type valid_max byte 9
attribute qc_gear_type valid_min byte 0
variable qc_date byte
attribute qc_date _ChunkSizes uint 9853
attribute qc_date _FillValue byte 127
attribute qc_date actual_range byte 1, 1
attribute qc_date comment String Bad (4) when the time is earlier than 2010-01-01 or later than the processing time.
attribute qc_date flag_meanings String not_evaluated good suspect bad missing_value
attribute qc_date flag_values byte 0, 1, 3, 4, 9
attribute qc_date ioos_category String Quality
attribute qc_date long_name String Impossible Date Test Flag
attribute qc_date references String https://github.com/FVON-GOOS/qc-flags/discussions/1 (external link)
attribute qc_date standard_name String quality_flag
attribute qc_date valid_max byte 9
attribute qc_date valid_min byte 0
variable qc_location byte
attribute qc_location _ChunkSizes uint 9853
attribute qc_location _FillValue byte 127
attribute qc_location actual_range byte 1, 9
attribute qc_location comment String Bad (4) when latitude or longitude is outside -90..90 / -180..180; missing (9) when the sample has no position.
attribute qc_location flag_meanings String not_evaluated good suspect bad missing_value
attribute qc_location flag_values byte 0, 1, 3, 4, 9
attribute qc_location ioos_category String Quality
attribute qc_location long_name String Impossible Location Test Flag
attribute qc_location references String https://github.com/FVON-GOOS/qc-flags/discussions/2 (external link)
attribute qc_location standard_name String location_test_quality_flag
attribute qc_location valid_max byte 9
attribute qc_location valid_min byte 0
variable qc_speed byte
attribute qc_speed _ChunkSizes uint 9853
attribute qc_speed _FillValue byte 127
attribute qc_speed actual_range byte 1, 4
attribute qc_speed comment String Bad (4) when the speed between consecutive positions exceeds 4.12 m/s. Mobile gear only; fixed gear is always good (1).
attribute qc_speed flag_meanings String not_evaluated good suspect bad missing_value
attribute qc_speed flag_values byte 0, 1, 3, 4, 9
attribute qc_speed ioos_category String Quality
attribute qc_speed long_name String Impossible Speed Test Flag
attribute qc_speed references String https://github.com/FVON-GOOS/qc-flags/discussions/3 (external link)
attribute qc_speed standard_name String quality_flag
attribute qc_speed valid_max byte 9
attribute qc_speed valid_min byte 0
variable qc_global_range byte
attribute qc_global_range _ChunkSizes uint 9853
attribute qc_global_range _FillValue byte 127
attribute qc_global_range actual_range byte 1, 4
attribute qc_global_range comment String Temperature outside -2..35 degree_C or pressure below -5 dbar: bad (4). Pressure between -5 and 0 dbar, or above 110 % of the pressure rating of the logger model (TD-200: 220 dbar, TD-1000: 1100 dbar): suspect (3).
attribute qc_global_range flag_meanings String not_evaluated good suspect bad missing_value
attribute qc_global_range flag_values byte 0, 1, 3, 4, 9
attribute qc_global_range ioos_category String Quality
attribute qc_global_range long_name String Gross Range Test Flag
attribute qc_global_range references String https://github.com/FVON-GOOS/qc-flags/discussions/4 (external link)
attribute qc_global_range standard_name String gross_range_test_quality_flag
attribute qc_global_range valid_max byte 9
attribute qc_global_range valid_min byte 0
variable qc_temp_spike byte
attribute qc_temp_spike _ChunkSizes uint 9853
attribute qc_temp_spike _FillValue byte 127
attribute qc_temp_spike actual_range byte 1, 4
attribute qc_temp_spike comment String Bad (4) when a sample departs from the mean of its two neighbours by more than 6 degree_C (shallower than 500 dbar) or 2 degree_C (deeper).
attribute qc_temp_spike flag_meanings String not_evaluated good suspect bad missing_value
attribute qc_temp_spike flag_values byte 0, 1, 3, 4, 9
attribute qc_temp_spike ioos_category String Quality
attribute qc_temp_spike long_name String Temperature Spike Test Flag
attribute qc_temp_spike references String https://github.com/FVON-GOOS/qc-flags/discussions/5 (external link)
attribute qc_temp_spike standard_name String spike_test_quality_flag
attribute qc_temp_spike valid_max byte 9
attribute qc_temp_spike valid_min byte 0
variable qc_rollover byte
attribute qc_rollover _ChunkSizes uint 9853
attribute qc_rollover _FillValue byte 127
attribute qc_rollover actual_range byte 1, 3
attribute qc_rollover comment String Suspect (3) when temperature jumps by more than 0.5 degree_C between consecutive samples during the fishing (bottom) phase.
attribute qc_rollover flag_meanings String not_evaluated good suspect bad missing_value
attribute qc_rollover flag_values byte 0, 1, 3, 4, 9
attribute qc_rollover ioos_category String Quality
attribute qc_rollover long_name String Digit Rollover Test Flag
attribute qc_rollover references String https://github.com/FVON-GOOS/qc-flags/discussions/16 (external link)
attribute qc_rollover standard_name String quality_flag
attribute qc_rollover valid_max byte 9
attribute qc_rollover valid_min byte 0
variable qc_temp_stuck byte
attribute qc_temp_stuck _ChunkSizes uint 9853
attribute qc_temp_stuck _FillValue byte 127
attribute qc_temp_stuck actual_range byte 1, 4
attribute qc_temp_stuck comment String Profiling phases only; samples of the fishing (bottom) phase are always good (1). Suspect (3) when a sample equals both its neighbours (3 identical values in a row); bad (4) when it also equals the next sample on each side (5 in a row). Exact equality at the 0.001 degree_C resolution of the logger.
attribute qc_temp_stuck flag_meanings String not_evaluated good suspect bad missing_value
attribute qc_temp_stuck flag_values byte 0, 1, 3, 4, 9
attribute qc_temp_stuck ioos_category String Quality
attribute qc_temp_stuck long_name String Temperature Flat Line Test Flag
attribute qc_temp_stuck references String https://github.com/FVON-GOOS/qc-flags/discussions/6 (external link)
attribute qc_temp_stuck standard_name String flat_line_test_quality_flag
attribute qc_temp_stuck valid_max byte 9
attribute qc_temp_stuck valid_min byte 0
variable qc_RoC byte
attribute qc_RoC _ChunkSizes uint 9853
attribute qc_RoC _FillValue byte 127
attribute qc_RoC actual_range byte 1, 3
attribute qc_RoC comment String Suspect (3) when the change between consecutive samples exceeds 3 standard deviations of the changes within the same segment of the tow.
attribute qc_RoC flag_meanings String not_evaluated good suspect bad missing_value
attribute qc_RoC flag_values byte 0, 1, 3, 4, 9
attribute qc_RoC ioos_category String Quality
attribute qc_RoC long_name String Temperature Rate of Change Test Flag
attribute qc_RoC references String https://github.com/FVON-GOOS/qc-flags/discussions/13 (external link)
attribute qc_RoC standard_name String rate_of_change_test_quality_flag
attribute qc_RoC valid_max byte 9
attribute qc_RoC valid_min byte 0
variable qc_drift byte
attribute qc_drift _ChunkSizes uint 9853
attribute qc_drift _FillValue byte 127
attribute qc_drift actual_range byte 1, 3
attribute qc_drift comment String One verdict per tow: suspect (3) when the fishing (bottom) phase lasts less than 24 h and its first and last temperatures differ by more than 3 degree_C.
attribute qc_drift flag_meanings String not_evaluated good suspect bad missing_value
attribute qc_drift flag_values byte 0, 1, 3, 4, 9
attribute qc_drift ioos_category String Quality
attribute qc_drift long_name String Bottom Temperature Drift Test Flag
attribute qc_drift references String https://github.com/FVON-GOOS/qc-flags/discussions/10 (external link)
attribute qc_drift standard_name String quality_flag
attribute qc_drift valid_max byte 9
attribute qc_drift valid_min byte 0
variable qc_mud byte
attribute qc_mud _ChunkSizes uint 9853
attribute qc_mud _FillValue byte 127
attribute qc_mud actual_range byte 1, 4
attribute qc_mud comment String Fixed gear only; mobile gear and tows without segments are always good (1). Detects sediment packed around the thermistor, which slows its response from about 1 s to minutes: the up-profile stays biased toward the bottom temperature. Needs at least 2 degree_C surface-to-bottom contrast, casts long enough to resolve the lag, a mid-column up-minus-down difference toward the bottom temperature, and a lag signature on the ascent (full lag, wash-out, pinned, or pinned then released). A profile that is offset but keeps its shape is treated as a water-mass change. The down-profile is flagged only with seabed evidence. Every detection is bad (4), whether automatic or confirmed by an operator; this test never reports suspect (3).
attribute qc_mud flag_meanings String not_evaluated good suspect bad missing_value
attribute qc_mud flag_values byte 0, 1, 3, 4, 9
attribute qc_mud ioos_category String Quality
attribute qc_mud long_name String Mud Contamination Test Flag
attribute qc_mud references String https://github.com/FVON-GOOS/qc-flags/discussions/9 (external link)
attribute qc_mud standard_name String quality_flag
attribute qc_mud valid_max byte 9
attribute qc_mud valid_min byte 0
variable qc_response_time byte
attribute qc_response_time _ChunkSizes uint 9853
attribute qc_response_time _FillValue byte 127
attribute qc_response_time actual_range byte 1, 4
attribute qc_response_time comment String Profiling phases only: the gear moves too fast for the thermistor to follow. Vertical speed between consecutive samples above 1 dbar/s: suspect (3); above 2 dbar/s: bad (4).
attribute qc_response_time flag_meanings String not_evaluated good suspect bad missing_value
attribute qc_response_time flag_values byte 0, 1, 3, 4, 9
attribute qc_response_time ioos_category String Quality
attribute qc_response_time long_name String Sensor Response Time Test Flag
attribute qc_response_time references String https://github.com/FVON-GOOS/qc-flags/discussions/15 (external link)
attribute qc_response_time standard_name String quality_flag
attribute qc_response_time valid_max byte 9
attribute qc_response_time valid_min byte 0
variable qc_clima byte
attribute qc_clima _ChunkSizes uint 9853
attribute qc_clima _FillValue byte 127
attribute qc_clima actual_range byte 1, 3
attribute qc_clima comment String Suspect (3) when temperature is outside the climatological range of the region; currently the global envelope -1.92..35 degree_C. Not part of qc_aggregate.
attribute qc_clima flag_meanings String not_evaluated good suspect bad missing_value
attribute qc_clima flag_values byte 0, 1, 3, 4, 9
attribute qc_clima ioos_category String Quality
attribute qc_clima long_name String Climatology Test Flag
attribute qc_clima references String https://github.com/FVON-GOOS/qc-flags/discussions/8 (external link)
attribute qc_clima standard_name String climatology_test_quality_flag
attribute qc_clima valid_max byte 9
attribute qc_clima valid_min byte 0
variable qc_calibration_date byte
attribute qc_calibration_date _ChunkSizes uint 9853
attribute qc_calibration_date _FillValue byte 127
attribute qc_calibration_date actual_range byte 0, 3
attribute qc_calibration_date comment String Suspect (3) when the last calibration is more than 2 years before the sample; not evaluated (0) when no calibration date is known. Not part of qc_aggregate.
attribute qc_calibration_date flag_meanings String not_evaluated good suspect bad missing_value
attribute qc_calibration_date flag_values byte 0, 1, 3, 4, 9
attribute qc_calibration_date ioos_category String Quality
attribute qc_calibration_date long_name String Calibration Age Test Flag
attribute qc_calibration_date references String https://github.com/FVON-GOOS/qc-flags/discussions/7 (external link)
attribute qc_calibration_date standard_name String quality_flag
attribute qc_calibration_date valid_max byte 9
attribute qc_calibration_date valid_min byte 0

 
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