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You are here: Home / Data and maps / Datasets / Waterbase - Transitional, coastal and marine waters / Waterbase - TCM: QualityWaterD

Waterbase - TCM: QualityWaterD

The QualityWaterD table contains disaggregated data on nutrients, oxygen and organic matter in seawater, measured at Eurowaternet transitional, coastal or marine water monitoring stations. Each station has been assigned a unique Waterbase identifier (WaterbaseID) which can be used to link the Quality data with their respective Stations and Pressure data.
European data
Table definition
Year Year year of aggregation period or year in which sample taken, in format YYYY. int(4) 0
Month Month month in which sample was taken, values in range 0-12 (it is possible that the month has not been supplied, in which case the value will be 0). int(4) 0
Day Day day in which sample was taken, values in range 0-31 (it is possible that the day has not been supplied, in which case the value will be 0). int(4) 0
SampleID Sample ID unique sample identifier required if multiple samples taken on same day. SampleID default value is 0. nvarchar(50) 0
Determinand Determinand determinand name. nvarchar(200) 0
Unit Unit unit of measurement. nvarchar(30) 0
SampleDepth Sample depth depth at which sample taken expressed as m below surface with value >=0. float(8) 0
Salinity Salinity salinity of sample or salinity to which sample concentration is normalised in practical salinity units (psu). float(8) 0
LimitOfDetection Limit of detection concentration for which there is a desirably small probability (around 5%) that the determinand will not be detected i.e. there is a 95% probability that the determinand will be detected. float(8) 0
LimitOfDetermination Limit of determination the smallest concentration that can be distinguished from the analytical blank at a chosen level of statistical confidence (usually 95%). float(8) 0
Concentration Concentration concentration of determinand in sample. For observations reported as below the analytical limit, the field will contain the upper (reporting) limit. float(8) 0
ThermoPos Thermocline position vertical position relative to thermocline at transitional, coastal or marine water monitoring station: AT = Above thermocline, IT = In thermocline, BT = Below thermocline. varchar(2) 0
HaloPos Halocline position vertical position relative to halocline at transitional, coastal or marine water monitoring station: AH = Above halocline, IH = In halocline, BH = Below halocline. varchar(2) 0
CountryCode Country code ISO 3166-alpha-2 code elements. varchar(2) 0
WaterbaseID Waterbase ID Internally produced, unique identifier used to represent the transitional, coastal or marine water monitoring station, in the format: CountryCode_WaterDataSet_NationalStationID (e.g. GB_TCM_12345). varchar(200) -1
LimitOfDetectionFlag Limit of detection flag flag to indicate sample below analytical limit of detection in format <. varchar(1) 0

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