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Waterbase - Lakes

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Waterbase is the generic name given to the EEA's databases on the status and quality of Europe's rivers, lakes, groundwater bodies and transitional, coastal and marine waters, and on the quantity of Europe's water resources

European data

Waterbase - Lakes (5 tables)

The dataset contains data on nutrients, organic matter, hazardous substances and other chemical determinands in water, proxy pressure data on the upstream catchments and physical characteristics of the WISE-SoE lake monitoring stations.

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Physical Characteristics of Lakes Monitoring Stations (Waterbase_lakes_v11_Stations, 3509 records)

Physical characteristics of the WISE-SoE lake monitoring stations.

Field name Definition Note data type
RecordID Unique record identifier long
RecordReported Date when the record was reported by the data provider. text(10)
CountryCode Abbreviation of EEA Member or Collaborating Country ISO 3166-1-alpha-2 code elements text(2)
WaterbaseID Internally produced, unique Waterbase identifier combination of CountryCode, '_LK_' and NationalStationID text(100)
NationalStationID Identifier of the lake monitoring station, unique at the national level. text(100)
NationalStationName National name of the monitoring station text(150)
WFDstation Specification yes / no, whether the monitoring station was reported to European Commission as Water Framework Directive, Article 8 monitoring station. text(3)
WFD_EU_CD Unique international identifier of the monitoring station under which the station was reported as WFD Art.8 monitoring station. text(50)
LakeName Name of lake. text(150)
WaterCategory Water Category, as defined in the codelist. text(2)
WaterBodyID National identification code of water body in which station is located text(50)
WaterBodyName Name of water body in which station is located. text(255)
CatchmentName Name of major catchment or basin. text(150)
RBDcode River Basin District Code text(20)
RBDname Name of the River Basin District. text(150)
Region National region in which water body is located text(50)
Longitude International geographical longitude (x) co-ordinate in decimal degrees format. decimal
Latitude International geographical latitude (x) co-ordinate in decimal degrees format. decimal
CatchmentArea Catchment area upstream of the station, in kilometres squared. decimal
Altitude Altitude of station in metres above sea level. long
RepresentativeStation Station is representative, reflecting general quality of rivers/lakes/transitional or coastal water bodies or marine water areas. text(1)
ReferenceStation Station is reference station - found in catchments or associated River Basin Districts with little or no human activity, natural landscape higher than 90%, and minimally impacted by inflow from adjacent coastal or marine waters. text(1)
ImpactStation Station is impact station - located within the zone where initial mixing of discharges takes place with receiving waters. text(1)
LargestStation Station is largest station - most important station, including the nationally most important or well known rivers or lakes. text(1)
Geology The dominnt geology in the catchment, given according to the WFD Annex 2 categories. siliceous, calcareous, organic (peat) text(50)
WaterColourAverage Long-term average concentration of water colour, expressing the concentration of humic substances at the station. decimal
WaterColourLevel Average level of water colour as defined by the WFD intercalibration typology. low (<30 mg/l Pt = oligohumic), moderate (30-90 mg/l Pt = mesohumic) or high (>90 mg/l Pt = polyhumic). text(8)
AlkalinityAverage Long-term average of alkalinity of water at the station decimal
AlkalinityLevel Long-term average level of alkalinity as defined by the WFD intercalibration typology. low alk. (<0.2 meq/L), moderate alk. (0.2-1 meq/L) or high alk. (>1 meq/L) text(8)
HMWB River/Lake is identified as heavily modified in terms of hydromorphological impacts, such as impoundments and high water level fluctuations, according to WFD-compliant national guidelines text(1)
ArtificialWB Station is located in an artificial water body, (e.g. artificial water reservoir) in terms of hydromorphological impacts, such as impoundments and high water level fluctuations, according to WFD-compliant national guidelines. text(1)
Purpose The purpose of the monitoring station in terms of to which directives, conventions or agreements will the data from the station be used for reporting. text(255)
Location Location of the lake monitoring site. text(150)
SurfaceArea Surface area of lake in square kilometres. decimal
MeanDepth Mean depth of the lake in metres. decimal
MaximumDepth Maximum depth of the lake in metres. decimal
ResidenceTime Average lake residence time in years. decimal
Volume Volume of water in lake in million cubic metres. decimal
Reservoir Reservoir or natural lake. Y - reservoir, N - natural lake text(1)
SamplingDepth Depth at which sample taken in metres below the lake surface. text(20)
Remarks Remarks, comments or explanatory notes text(255)
QA_station_issues Quality assessment field - stations data quality issues flag List of codes of station data issues detected in the record. Details are explained in the QA documentation. text(100)
QA_DDviolations Quality assessment field - data definition errors List of field names and their values where values that do not follow the official specifications. Details are explained in the QA documentation. memo

Proxy Pressures of Lakes (Waterbase_lakes_v11_Pressures, 2029 records)

Proxy pressure data on the upstream catchments of WISE-SoE lake monitoring stations.

Field name Definition Note data type
RecordID Unique record identifier long
RecordReported Date when the record was reported by the data provider. text(10)
CountryCode Abbreviation of EEA Member or Collaborating Country ISO 3166-1-alpha-2 code elements text(2)
WaterbaseID Internally produced, unique Waterbase identifier combination of CountryCode, '_LK_' and NationalStationID text(100)
NationalStationID Identifier of the lake monitoring station, unique at the national level. text(100)
PopulationDensity Population density of the upstream catchment of the river monitoring station decimal
UWWT Point source pressure from urban waste water treatment discharges. text(1)
OverflowsDischarges Point source pressure from overflows and urban discharges. text(1)
IPPC Point source pressure from IPPC installations. text(1)
nonIPPC Point source pressure from non-IPPC installations text(1)
Fertiliser Diffuse sources pressures from agricultural fertiliser use. text(1)
Pesticide Diffuse sources pressures from agricultural pesticide use. text(1)
Livestock Diffuse sources pressures from livestock. text(1)
TransportInfrastructure Diffuse sources pressures from transport and infrastructure without connection to sewers. text(1)
PublicWaterSupply Water abstractions pressures due to public water supply. text(1)
Industry Water abstractions pressures due to industry. text(1)
Irrigation Water abstractions pressures due to irrigation. text(1)
Cooling Water abstractions pressures due to needs for cooling water, e.g. for nuclear power plants or other industrial activities. text(1)
WaterFlowRegulation Water flow regulation and morphological alterations. text(50)
Remarks Remarks, comments or explanatory notes text(255)
QA_station_issues Quality assessment field - stations data quality issues flag List of codes of station data issues detected in the record. Details are explained in the QA documentation. text(100)
QA_DDviolations Quality assessment field - data definition errors List of field names and their values where values that do not follow the official specifications. Details are explained in the QA documentation. memo

Nutrients and General Physico-Chemical Determinands in Lakes (Waterbase_lakes_v11_Nutrients, 318184 records)

Data on nutrients and organic matter in water measured at WISE-SoE lake monitoring stations.

Field name Definition Note data type
RecordID Unique record identifier long
RecordReported Date when the record was reported by the data provider. text(10)
CountryCode Abbreviation of EEA Member or Collaborating Country ISO 3166-1-alpha-2 code elements text(2)
WaterbaseID Internally produced, unique Waterbase identifier combination of CountryCode, '_LK_' and NationalStationID text(100)
NationalStationID Identifier of the lake monitoring station, unique at the national level. text(100)
Year Year of aggregation period in which samples were taken/Year in which sample was taken. long
AggregationPeriod Period of aggregation of measurement data. Values are standardized text(20)
AggregationPeriod_original Original aggregation period value reported by dat provider. text(100)
AggregationMonths Detailed specification of aggregation period by months. text(150)
AggregationLength Number of months in aggregation period. long
Determinand_Nutrients Name of nutrient, organic matter or general physico-chemical determinand. text(50)
Unit_Nutrients Unit of measurement of nutrients or organic matter. text(7)
CEN_ISO CEN/ISO code of the methods. text(150)
NumberOfSamples Number of samples included in aggregated data. long
LimitOfDetection 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. decimal
LimitOfQuantification The smallest concentration that can be distinguished from the analytical blank at a chosen level of statistical confidence (usually 95%). decimal
Minimum Minimum disaggregated sample concentration value of the input data used for aggregation. decimal
Mean Mean concentration value of aggregated data. decimal
Maximum Maximum disaggregated sample concentration value of the input data used for aggregation. decimal
Median Median concentration value of aggregated data. decimal
StandardDeviation Standard deviation of concentration values of aggregated data. decimal
SampleDepth Depth at which sample taken in metres below water surface. decimal
TotalDepth Total depth of water column at the sampling location and at the time of sampling (in meters). decimal
NoOfSubsites Number of subsites long
MethodSubsitesSpatialAggreg Method of subsite aggregation - if several subsites across the water body profile are joined into one monitoring station. text(255)
Remarks Remarks, comments or explanatory notes text(255)
AggregatedBy Subject(s) that aggregated the data. text(20)
QA_MVissues long
QA_LRviolations Quality assessment field - list of logical rules violations. List of codes of logical rules violated by record. Details are explained in the QA documentation. text(100)
QA_outlier Quality assessment field - outlier flag. Outlier code assigned to the record. Details are explained in the QA documentation. long
QA_CRviolations Quality assessment field - list of chemical rules violations. List of codes of chemical rules violated by record. Details are explained in the QA documentation. text(50)
QA_station_issues Quality assessment field - stations data quality issues flag List of codes of station data issues detected in the record. Details are explained in the QA documentation. text(100)
QA_DDviolations Quality assessment field - data definition errors List of field names and their values where values that do not follow the official specifications. Details are explained in the QA documentation. memo

Hazardous Substances and Other Chemical Determinands in Lakes (Waterbase_lakes_v11_HazSubs, 57193 records)

Data on hazardous substances and other chemical determinands in water measured at WISE-SoE lake monitoring stations.

Field name Definition Note data type
RecordID Unique record identifier long
RecordReported Date when the record was reported by the data provider. text(10)
CountryCode Abbreviation of EEA Member or Collaborating Country ISO 3166-1-alpha-2 code elements text(2)
WaterbaseID Internally produced, unique Waterbase identifier combination of CountryCode, '_LK_' and NationalStationID text(100)
NationalStationID Identifier of the lake monitoring station, unique at the national level. text(100)
Year Year of aggregation period in which samples were taken/Year in which sample was taken. long
Determinand_HazSubs Name of hazardous substance or other chemical determinand. text(150)
Unit_HazSubs Unit of measurement of hazardous substance. text(20)
CASNumber Chemical Abstract Service Number of the hazardous substance or other chemical determinand. text(64)
CEN_ISO CEN/ISO code of the methods. text(150)
NumberOfSamples Number of samples included in aggregated data. long
NumberOfSamplesBelowLOQ Number of samples below limit of quantification within aggregation period long
LimitOfDetection 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. decimal
LimitOfQuantification The smallest concentration that can be distinguished from the analytical blank at a chosen level of statistical confidence (usually 95%). decimal
Minimum Minimum disaggregated sample concentration value of the input data used for aggregation. decimal
Mean Mean concentration value of aggregated data. decimal
Maximum Maximum disaggregated sample concentration value of the input data used for aggregation. decimal
Median Median concentration value of aggregated data. decimal
StandardDeviation Standard deviation of concentration values of aggregated data. decimal
SampleDepth Depth at which sample taken in metres below water surface. decimal
NoOfSubsites Number of subsites long
MethodSubsitesSpatialAggreg Method of subsite aggregation - if several subsites across the water body profile are joined into one monitoring station. text(255)
Remarks Remarks, comments or explanatory notes text(255)
AggregatedBy Subject(s) that aggregated the data. text(20)
QA_MVissues long
QA_LRviolations Quality assessment field - list of logical rules violations. List of codes of logical rules violated by record. Details are explained in the QA documentation. text(100)
QA_station_issues Quality assessment field - stations data quality issues flag List of codes of station data issues detected in the record. Details are explained in the QA documentation. text(50)
QA_DDviolations Quality assessment field - data definition errors List of field names and their values where values that do not follow the official specifications. Details are explained in the QA documentation. memo

Supportive Determinands for hazardous substances in Lakes (Waterbase_lakes_v11_SuppDet, 39861 records)

Data on supportive determinands, supplementing information on hazardous substances in water measured at WISE-SoE lake monitoring stations.

Field name Definition Note data type
RecordID Unique record identifier long
RecordReported Date when the record was reported by the data provider. text(10)
CountryCode Abbreviation of EEA Member or Collaborating Country ISO 3166-1-alpha-2 code elements text(2)
WaterbaseID Internally produced, unique Waterbase identifier combination of CountryCode, '_LK_' and NationalStationID text(100)
NationalStationID Identifier of the lake monitoring station, unique at the national level. text(100)
Year Year of aggregation period in which samples were taken/Year in which sample was taken. long
Determinand_Supportive Name of supportive determinand, that is needed for correct interpretation of some hazardous substances. text(20)
Unit_DetSupport Unit of measurement of hazardous substances supportive determinands. text(20)
NumberOfSamples Number of samples included in aggregated data. long
Minimum Minimum disaggregated sample concentration value of the input data used for aggregation. decimal
Mean Mean concentration value of aggregated data. decimal
Maximum Maximum disaggregated sample concentration value of the input data used for aggregation. decimal
Median Median concentration value of aggregated data. decimal
StandardDeviation Standard deviation of concentration values of aggregated data. decimal
AggregatedBy Subject(s) that aggregated the data. text(20)
QA_MVissues long
QA_outlier Quality assessment field - outlier flag. Outlier code assigned to the record. Details are explained in the QA documentation. long
QA_station_issues Quality assessment field - stations data quality issues flag List of codes of station data issues detected in the record. Details are explained in the QA documentation. text(100)
QA_DDviolations Quality assessment field - data definition errors List of field names and their values where values that do not follow the official specifications. Details are explained in the QA documentation. memo

Additional information

Tables metadata

Definition and field description of all data tables.

Code lists

Lists and description of codes of selected fields present in the Waterbase-Lakes data tables

QA documentation

Quality control documentation briefly presents ETC/ICM and EEA activities focused on quality of Waterbase-Lakes dataset and results of these activities. In addition warning is given on the use of certain records for analytical purposes.

Metadata

Additional information

Waterbase contains timely, reliable and policy-relevant data collected from EEA member countries through the WISE-SoE data collection (formerly known as Eionet-Water and Eurowaternet) process. WISE-SoE data collection selects validated monitoring data from national databases and adds information on the physical characteristics of the water bodies being monitored and on the pressures potentially affecting water quality. The added value of Waterbase is that data collected through the WISE-SoE data collection process are from statistically stratified monitoring stations and groundwater bodies and are comparable at the European level. Waterbase data are primarily used in the production of the EEA's indicator-based factsheets.

 
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