Easier access to scientific data
|
ERDDAP at RI Data Discovery Center
Easier access to scientific data |
Brought to you by
RI Data Discovery Center and
|
| Dataset Title: | Buoy Telemetry: Automated Quality Control
|
| Institution: | Rhode Island Data Discovery Center (Dataset ID: buoy_telemetry_0ffe_2dc0_916e) |
| Information: | Summary
| License
| FGDC
| ISO 19115
| Metadata
| Background
| Subset
| Make a graph
|
Attributes {
s {
time {
String _CoordinateAxisType "Time";
Float64 actual_range 1.7332908e+9, 1.733292e+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 "1970-01-01T00:00Z";
String units "seconds since 1970-01-01T00:00:00Z";
}
FluorescenceCounts {
Float32 _FillValue NaN;
String long_name "Raw ECO Fluorescence Counts";
}
FDOM {
Float32 _FillValue NaN;
String long_name "Fluorescent Dissolved Organic Matter";
String standard_name "concentration_of_fluorescent_dissolved_organic_matter_in_sea_water_expressed_as_equivalent_mass_fraction_of_quinine_sulfate_dihydrate";
String units "ppb";
}
FDOMDespike {
Float64 _FillValue NaN;
String long_name "FDOM Despike";
String units "ppb";
}
FDOMGlobalRangeQC {
Byte _FillValue 127;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "FDOM Global Range QC";
}
FDOMStuckValueQC {
Byte _FillValue 127;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "FDOM Stuck Value QC";
}
WaterTempSurface {
Float32 _FillValue NaN;
String long_name "Sea Surface Temperature";
String standard_name "sea_surface_temperature";
String units "degree_C";
}
WaterTempSurfaceDespike {
Float64 _FillValue NaN;
String long_name "Sea Surface Temperature Despike";
String units "degree_C";
}
WaterTempSurfaceGlobalRangeQC {
Byte _FillValue 127;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Sea Surface Temperature Global Range QC";
}
WaterTempSurfaceSeasonalNBRangeQC {
Byte _FillValue 127;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Sea Surface Temperature Seasonal NB Range QC";
}
WaterTempSurfaceStuckValueQC {
String long_name "Sea Surface Temperature Stuck Value QC";
}
SpCondSurface {
Float32 _FillValue NaN;
Float64 colorBarMaximum 40.0;
Float64 colorBarMinimum 30.0;
String long_name "Conductivity";
String standard_name "sea_water_electrical_conductivity";
String units "mS cm-1";
}
O2Surface {
Float32 _FillValue NaN;
String long_name "Dissolved Oxygen";
String standard_name "mass_concentration_of_dissolved_molecular_oxygen_in_sea_water";
String units "ug L-1";
}
O2SurfaceDespike {
Float64 _FillValue NaN;
String long_name "Dissolved Oxygen Despike";
String units "ug L-1";
}
O2SurfaceGlobalRangeQC {
Byte _FillValue 127;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Dissolved Oxygen Global Range QC";
}
O2SurfaceStuckValueQC {
Byte _FillValue 127;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Dissolved Oxygen Stuck Value QC";
}
SalinitySurface {
Float32 _FillValue NaN;
Float64 colorBarMaximum 37.0;
Float64 colorBarMinimum 32.0;
String long_name "Salinity";
String standard_name "sea_water_practical_salinity";
String units "PSU";
}
SalinitySurfaceDespike {
Float64 _FillValue NaN;
Float64 colorBarMaximum 37.0;
Float64 colorBarMinimum 32.0;
String long_name "Salinity Despike";
String standard_name "sea_water_practical_salinity";
String units "PSU";
}
SalinitySurfaceGlobalRangeQC {
Byte _FillValue 127;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Salinity Global Range QC";
}
SalinitySurfaceSeasonalNBRangeQC {
Byte _FillValue 127;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Salinity Seasonal NB Range QC";
}
SalinitySurfaceStuckValueQC {
Byte _FillValue 127;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Salinity Stuck Value QC";
}
ChlorophyllSurface {
Float32 _FillValue NaN;
String long_name "Chlorophyll a Fluorescence";
String standard_name "mass_concentration_of_chlorophyll_a_in_sea_water";
String units "ug L-1";
}
ChlorophyllSurfaceDespike {
Float64 _FillValue NaN;
String long_name "Chlorophyll a Fluorescence Despike";
String units "ug L-1";
}
ChlorophyllSurfaceSeasonalNBRangeQC {
Byte _FillValue 127;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Chlorophyll a Fluorescence Seasonal NB Range QC";
}
ChlorophyllSurfaceStuckValueQC {
Byte _FillValue 127;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Chlorophyll a Fluorescence Stuck Value QC";
}
TurbiditySurface {
Float32 _FillValue NaN;
String long_name "Turbidity";
String standard_name "sea_water_turbidity";
String units "NTU";
}
TurbiditySurfaceDespike {
Float32 _FillValue NaN;
String long_name "Turbidity Despike";
String units "NTU";
}
TurbiditySurfaceStuckValueQC {
Byte _FillValue 127;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Turbidity Stuck Value QC";
}
pHSurface {
Float32 _FillValue NaN;
String long_name "pH";
String standard_name "sea_water_ph_reported_on_total_scale";
String units "1";
}
pHSurfaceDespike {
Float64 _FillValue NaN;
String long_name "pH Despike";
String units "1";
}
pHSurfaceGlobalRangeQC {
Byte _FillValue 127;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "pH Global Range QC";
}
pHSurfaceStuckValueQC {
Byte _FillValue 127;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "pH Stuck Value QC";
}
PhosphateSurface {
Float32 _FillValue NaN;
String long_name "Phosphate";
String standard_name "mole_concentration_of_phosphate_in_sea_water";
String units "umol L-1";
}
PhosphateSurfaceQCFlag {
Byte _FillValue 127;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Phosphate QC Flag";
}
PhosphateSurfaceBubbleFlag {
Byte _FillValue 127;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Phosphate Bubble Flag";
}
PhosphateSurfaceCoVFlag {
Byte _FillValue 127;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Phosphate Coefficient of Variation Flag";
}
PhosphateSurfaceLowSigFlag {
Byte _FillValue 127;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Phosphate Low Signal Flag";
}
PhosphateSurfaceOoRFlag {
Byte _FillValue 127;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Phosphate Out of Range Flag";
}
PhosphateSurfaceMixingFlag {
Byte _FillValue 127;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Phosphate Mixing Flag";
}
HydrocycleCalibrationFlag {
Byte _FillValue 127;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Hydrocycle Calibration Flag";
}
PhosphateSurfaceDespike {
Float64 _FillValue NaN;
String long_name "Phosphate Despike";
String standard_name "mass_concentration_of_phosphate_in_sea_water";
String units "umol L-1";
}
PhosphateSurfaceSeasonalNBRangeQC {
Byte _FillValue 127;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Phosphate Seasonal NB Range QC";
}
PhosphateSurfaceStuckValueQC {
Byte _FillValue 127;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Phosphate Stuck Value QC";
}
NitrateNSurface {
Float32 _FillValue NaN;
Float64 colorBarMaximum 50.0;
Float64 colorBarMinimum 0.0;
String long_name "Nitrate";
String standard_name "mole_concentration_of_nitrate_in_sea_water";
String units "umol L-1";
}
NitrateNSurfaceDespike {
Float64 _FillValue NaN;
Float64 colorBarMaximum 50.0;
Float64 colorBarMinimum 0.0;
String long_name "Nitrate Despike";
String standard_name "mole_concentration_of_nitrate_in_sea_water";
String units "umol L-1";
}
NitrateNSurfaceGlobalRangeQC {
Byte _FillValue 127;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Nitrate Global Range QC";
}
NitrateNSurfaceSeasonalNBRangeQC {
Byte _FillValue 127;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Nitrate Seasonal NB Range QC";
}
NitrateNSurfaceStuckValueQC {
Byte _FillValue 127;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Nitrate Stuck Value QC";
}
PARSurface {
Float32 _FillValue NaN;
Float64 colorBarMaximum 15.0;
Float64 colorBarMinimum 0.0;
String long_name "Photosynthetically Active Radiation";
String standard_name "surface_downwelling_photosynthetic_photon_flux_in_air";
String units "umol m-2 s-1";
}
PARSurfaceDespike {
Float32 _FillValue NaN;
Float64 colorBarMaximum 15.0;
Float64 colorBarMinimum 0.0;
String long_name "Photosynthetically Active Radiation Despike";
String standard_name "surface_downwelling_photosynthetic_photon_flux_in_air";
String units "umol m-2 s-1";
}
PARSurfaceInstrumentRangeQC {
Byte _FillValue 127;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Photosynthetically Active Radiation Instrument Range QC";
}
PARSurfaceStuckValueQC {
Byte _FillValue 127;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Photosynthetically Active Radiation Stuck Value QC";
}
station_name {
String long_name "Station Name";
}
WindSpeedAverage {
Float32 _FillValue NaN;
Float32 actual_range 0.0, 0.0;
Float64 colorBarMaximum 15.0;
Float64 colorBarMinimum 0.0;
String long_name "Average Wind Speed";
String standard_name "wind_speed";
String units "m s-1";
}
WindSpeedAverageDespike {
Float32 _FillValue NaN;
Float32 actual_range 0.0, 0.0;
Float64 colorBarMaximum 15.0;
Float64 colorBarMinimum 0.0;
String long_name "Average Wind Speed Despike";
String standard_name "wind_speed";
String units "m s-1";
}
WindSpeedAverageInstrumentRangeQC {
Byte _FillValue 127;
Byte actual_range 1, 1;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Average Wind Speed Instrument Range QC";
}
WindSpeedAverageStuckValueQC {
Byte _FillValue 127;
Byte actual_range 0, 1;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Average Wind Speed Stuck Value QC";
}
WindDirectionFrom {
Float32 _FillValue NaN;
Float32 actual_range 0.0, 0.0;
Float64 colorBarMaximum 360.0;
Float64 colorBarMinimum 0.0;
String long_name "Wind From Direction";
String standard_name "wind_from_direction";
String units "degree";
}
WindDirectionFromInstrumentRangeQC {
Byte _FillValue 127;
Byte actual_range 0, 0;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Wind From Direction Instrument Range QC";
}
WindDirectionFromStuckValueQC {
Byte _FillValue 127;
Byte actual_range 0, 1;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Wind From Direction Stuck Value QC";
}
WindSpeedGust {
Float32 _FillValue NaN;
Float32 actual_range 0.0, 0.0;
Float64 colorBarMaximum 30.0;
Float64 colorBarMinimum 0.0;
String long_name "Wind Speed Of Gust";
String standard_name "wind_speed_of_gust";
String units "m s-1";
}
WindSpeedGustDespike {
Float32 _FillValue NaN;
Float32 actual_range 0.0, 0.0;
Float64 colorBarMaximum 30.0;
Float64 colorBarMinimum 0.0;
String long_name "Wind Speed Of Gust Despike";
String standard_name "wind_speed_of_gust";
String units "m s-1";
}
WindSpeedGustInstrumentRangeQC {
Byte _FillValue 127;
Byte actual_range 1, 1;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Wind Speed Of Gust Instrument Range QC";
}
WindSpeedGustStuckValueQC {
Byte _FillValue 127;
Byte actual_range 0, 1;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Wind Speed Of Gust Stuck Value QC";
}
WindGustDirectionFrom {
Float32 _FillValue NaN;
Float32 actual_range 0.0, 0.0;
Float64 colorBarMaximum 360.0;
Float64 colorBarMinimum 0.0;
String long_name "Wind Gust From Direction";
String standard_name "wind_gust_from_direction";
String units "degree";
}
WindGustDirectionFromInstrumentRangeQC {
Byte _FillValue 127;
Byte actual_range 0, 0;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Wind Gust From Direction Instrument Range QC";
}
WindGustDirectionFromStuckValueQC {
Byte _FillValue 127;
Byte actual_range 0, 1;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Wind Gust From Direction Stuck Value QC";
}
AirTemp {
Float32 _FillValue NaN;
Float32 actual_range 3.6, 3.6;
String long_name "Air Temperature";
String standard_name "air_temperature";
String units "degree_C";
}
AirTempDespike {
Float32 _FillValue NaN;
Float32 actual_range 3.6, 3.6;
String long_name "Air Temperature Despike";
String standard_name "air_temperature";
String units "degree_C";
}
AirTempInstrumentRangeQC {
Byte _FillValue 127;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Air Temperature Instrument Range QC";
}
AirTempStuckValueQC {
Byte _FillValue 127;
Byte actual_range 0, 1;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Air Temperature Stuck Value QC";
}
AirPressure {
Float32 _FillValue NaN;
Float32 actual_range 1012.1, 1012.1;
String long_name "Air Pressure";
String standard_name "air_pressure_at_sea_level";
String units "mBar";
}
AirPressureDespike {
Float32 _FillValue NaN;
Float32 actual_range 1012.1, 1012.1;
String long_name "Air Pressure Despike";
String standard_name "air_pressure_at_sea_level";
String units "mBar";
}
AirPressureInstrumentRangeQC {
Byte _FillValue 127;
Byte actual_range 0, 0;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Air Pressure Instrument Range QC";
}
AirPressureStuckValueQC {
Byte _FillValue 127;
Byte actual_range 0, 1;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Air Pressure Stuck Value QC";
}
HumiditySurface {
Float32 _FillValue NaN;
Float32 actual_range 57.0, 57.0;
String long_name "Surface Relative Humidity";
String standard_name "surface_relative_humidity";
String units "1";
}
HumiditySurfaceDespike {
Float32 _FillValue NaN;
Float32 actual_range 57.0, 57.0;
String long_name "Surface Relative Humidity Despike";
String standard_name "surface_relative_humidity";
String units "1";
}
HumiditySurfaceInstrumentRangeQC {
Byte _FillValue 127;
Byte actual_range 0, 0;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Surface Relative Humidity Instrument Range QC";
}
HumiditySurfaceStuckValueQC {
Byte _FillValue 127;
Byte actual_range 0, 1;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Surface Relative Humidity Stuck Value QC";
}
Precipitation {
Float32 _FillValue NaN;
Float32 actual_range 0.0, 0.0;
String long_name "Precipitation";
String standard_name "precipitation_amount";
String units "mm hr-1";
}
PrecipitationDespike {
Float32 _FillValue NaN;
Float32 actual_range 0.0, 0.0;
String long_name "Precipitation Despike";
String standard_name "precipitation_amount";
String units "mm hr-1";
}
PrecipitationInstrumentRangeQC {
Byte _FillValue 127;
Byte actual_range 0, 0;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Precipitation Instrument Range QC";
}
PrecipitationStuckValueQC {
Byte _FillValue 127;
Byte actual_range 0, 0;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Precipitation Stuck Value QC";
}
SolarIrradiance {
Float32 _FillValue NaN;
Float32 actual_range 407.0, 407.0;
String long_name "Solar Irradiance";
String standard_name "solar_irradiance";
String units "W m-2";
}
SolarIrradianceDespike {
Float32 _FillValue NaN;
Float32 actual_range 407.0, 407.0;
String long_name "Solar Irradiance Despike";
String standard_name "solar_irradiance";
String units "W m-2";
}
SolarIrradianceInstrumentRangeQC {
Byte _FillValue 127;
Byte actual_range 0, 0;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Solar Irradiance Instrument Range QC";
}
SolarIrradianceStuckValueQC {
Byte _FillValue 127;
Byte actual_range 0, 1;
Float64 colorBarMaximum 150.0;
Float64 colorBarMinimum 0.0;
String long_name "Solar Irradiance Stuck Value QC";
}
latitude {
String _CoordinateAxisType "Lat";
Float64 actual_range 0.0, 0.0;
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";
Float64 actual_range 0.0, 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";
}
}
NC_GLOBAL {
String cdm_data_type "Other";
String Conventions "COARDS, CF-1.6, ACDD-1.3";
String creator_name "Rhode Island Data Discovery Center";
String creator_type "group";
Float64 Easternmost_Easting 0.0;
Float64 geospatial_lat_max 0.0;
Float64 geospatial_lat_min 0.0;
String geospatial_lat_units "degrees_north";
Float64 geospatial_lon_max 0.0;
Float64 geospatial_lon_min 0.0;
String geospatial_lon_units "degrees_east";
String history
"2025-04-28T14:10:24Z (local files)
2025-04-28T14:10:24Z https://pricaimcit.services.brown.edu/erddap/tabledap/buoy_telemetry_0ffe_2dc0_916e.html";
String infoUrl "riddc.brown.edu";
String institution "Rhode Island Data Discovery Center";
String keywords "atmosphere, atmospheric, avgWindDir, avgWindSpeed, bubbleflag, calflag, capo4, center, chemistry, concentration, conductivity, covflag, data, datetime, density, direction, discovery, diss, earth, Earth Science > Atmosphere > Atmospheric Winds > Surface Winds, Earth Science > Oceans > Ocean Chemistry > Nitrate, Earth Science > Oceans > Salinity/Density > Conductivity, Earth Science > Oceans > Salinity/Density > Salinity, eco, ecoFDOM, ecoReadingRaw, electrical, fdom, fluorescence, gust, gustWindDir, gustWindSpeed, humidity, hydrocat, hydrocatConductivity, hydrocatDissOxygen, hydrocatFluorescence, hydrocatPH, hydrocatSalinity, hydrocatTemperature, hydrocatTurbidity, island, local, lowsigflag, maximet, maximetHumidity, maximetPrecipitation, maximetPressure, maximetSolar, maximetTemperature, mixingflag, mole, mole_concentration_of_nitrate_in_sea_water, n02, name, nitrate, no3, O2, ocean, oceans, OoRflag, oxygen, parcalibrated, practical, precipitation, pressure, qcflag, rain, rainfall, raw, reading, rflag, rhode, salinity, science, sea, sea_water_electrical_conductivity, sea_water_practical_salinity, seawater, solar, source, speed, station, station_name, sunaNitrateMicroMol, surface, temperature, time, turbidity, water, wind, wind_from_direction, wind_speed, wind_speed_of_gust, winds";
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 0.0;
String sourceUrl "(local files)";
Float64 Southernmost_Northing 0.0;
String standard_name_vocabulary "CF Standard Name Table v55";
String subsetVariables "station_name";
String summary
"The near real-time data presented here is intended to provide a 'snapshot' of current conditions within Narragansett Bay and has been subjected to automated QC pipelines. QA of data is performed following manufacturer guidelines for calibration and servicing of each sensor. QC'd datasets that have undergone additional manual inspection by researchers is provided in a 3 month lagging interval. Following the publication of human QC'd data, automated QC'd data from the previous 3 month window will be removed. See the 'Buoy Telemetry: Manually Quality Controlled' dataset for the full quality controlled dataset.The Automated QC of measurements collected from buoy platforms is performed following guidelines established by the Ocean Observatories Initiative (https://oceanobservatories.org/quality-control/) and implemented in R.
Spike Test: To identify spikes within collected measurements, data points are assessed for deviation against a 'reference' window of measurement generated in a sliding window (k=7) . If a data point exceeds the deviation threshold (N=2), the spike is replaced with the 'reference' data point, which is determined using a median smoothing approach in the R package 'oce'. Despiked data is then written into the instrument table as 'Measurement_Despike'.
Global Range Test: Data points are checked against the maximum and minimum measurements using a dataset of global measurements provided by IOOC (https://github.com/oceanobservatories/qc-lookup). QC Flags from global range tests are stored in the instrument table as 'Measurement_Global_Range_QC'. QC Flags: Measurement within global threshold= 0, Below minimum global threshold =1, Above maximum global threshold =2.
Local Range Test: Data point values are checked against historical seasonal ranges for each parameter, using data provided by URI GSO's Narragansett Bay Long-Term Plankton Time Series (https://web.uri.edu/gso/research/plankton/). QC Flags from local range tests are stored in the instrument table as 'Measurement_Local_Range_QC'. Local Range QC Flags: Measurement within local seasonal threshold= 0, Below minimum local seasonal threshold =1, Above maximum local seasonal threshold =2.
Stuck Value Test: To identify potential stuck values from a sensor, each data point is compared to subsequent values using sliding 3 and 5 frame windows. QC Flags from stuck value tests are stored in the instrument table as 'Measurement_Stuck_Value_QC' QC Flags: No stuck value detected= 0, Suspect Stuck Sensor (3 consecutive identical values) =1, Stuck Sensor (5 consecutive identical values) =2.
Instrument Range Test: Data point values for meterological measurements are checked against the manufacturer's specified measurement ranges. QC Flags: Measurement within instrument range= 0, Measurement below instrument range =1, Measurement above instrument range =2.";
String testOutOfDate "now-26days";
String time_coverage_end "2024-12-04T06:00Z";
String time_coverage_start "2024-12-04T05:40Z";
String title "Buoy Telemetry: Automated Quality Control";
Float64 Westernmost_Easting 0.0;
}
}
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.