Description: The Lower Saxony Water Management, Coastal and Nature Protection Agency regularly monitors nutrient concentrations (including silicates, nitrate, and phosphate) and other physico-chemical parameters such as temperature and salinity in the East Frisian Wadden Sea. This dataset provides detailed data on physical and chemical properties in the East Frisian Wadden Sea surface waters from 2019 to 2022. A total of 17 stations are sampled from a monthly to weekly frequency. Water samples are taken at the surface with a bucket, and kept in 5L canisters to be stored in the cold and dark until analysis. The analysis of nutrients followed the procedures for seawater analysis given by Grasshoff et al. (1976). Dissolved nutrients, such as orthophosphate, nitrate, nitrite and silicate, were measured photometrically. Total nitrogen and phosphorus concentration were estimated by digesting total nutrients using heat and pressure, or in microwave with peroxodisulfate. The pH, salinity, and temperature were measured using a multisensor.
Global identifier:
Doi(
"10.1594/PANGAEA.995159",
)
DataMeasurements(
DataMeasurements {
domain: Unspecified,
station: None,
measured_variables: [
"DATE/TIME",
"DEPTH, water",
"Depth of Secchi Disk",
"Event label",
"Latitude of event",
"Location of event",
"Longitude of event",
"Nitrate",
"Nitrogen, total",
"Phosphate",
"Phosphorus, total",
"Salinity",
"Sample code/label",
"Sample method",
"Silicate",
"Suspended particulate matter",
"Temperature, water",
"pH",
],
methods: [
"Seawater analysis after Grasshoff (1976)",
"Secchi disk",
],
},
)
Tags: Niedersachsen ? Nitrit ? Nitrat ? Meerwasser ? Nährstoff ? Phosphor ? Schwebstoff ? Wattenmeer ? Geografische Koordinaten ? Gesamtstickstoff ? Plankton ? Temperatur ? Salzgehalt ? Chemikalien ? Meeresoberfläche ? Oberflächengewässer ? Wasserprobe ? Wasseruntersuchung ? Daten ? Wasserwirtschaft ? Naturschutz ?
Region: East Frisian Wadden Sea, Germany
Bounding boxes: 6.8745425° .. 8.47129722° x 53.47901472° .. 54.04929388°
License: Creative Commons Namensnennung 4.0
Language: Englisch/English
Issued: 2026-07-20
Modified: 2026-07-20
Last harvest: 21.07.2026 01:50
Time ranges: 2019-01-03 - 2022-12-28
Accessed 2 times.