Description: In this publication, we investigated the spatial and temporal distribution of nutrients in the Elbe estuary, Northern Germany, in 2022. In seasonal transect cruises, physicochemical parameters were measured continuously along a transect from the North Sea (53.98°N 8.36°E) to the port of Oortkaten in the upstream Elbe River (53.46°N 10.06°E). The study focus was set on the interplay of eutrophication and in-stream nutrient regeneration. At ~40 stations along the estuary, we measured the concentration of dissolved nutrients (nitrate, nitrite, ammonium, phosphate, silicate) and nitrate dual stable isotope signatures (δ15N-NO3, δ18O-NO3) as well as characteristics of suspended particulate matter (δ15N-SPM, chlorophyll a concentration and C/N ratio).
Global identifier:
Doi(
"10.1594/PANGAEA.979684",
)
DataMeasurements(
DataMeasurements {
domain: Unspecified,
station: None,
measured_variables: [
"Ammonium",
"Ammonium, standard deviation",
"Campaign of event",
"Carbon/Nitrogen ratio",
"Chlorophyll a",
"DEPTH, water",
"Date/Time of event",
"Event label",
"Fluorescence",
"International Generic Sample Number",
"Latitude of event",
"Longitude of event",
"Method/Device of event",
"Nitrate",
"Nitrate, standard deviation",
"Nitrite",
"Nitrite, standard deviation",
"Nitrogen, inorganic, dissolved",
"Optional event label",
"Oxygen",
"Oxygen saturation",
"Phosphate",
"Phosphate, standard deviation",
"Salinity",
"Sample code/label",
"Silicate, dissolved",
"Silicate, dissolved, standard deviation",
"Suspended particulate matter",
"Temperature, water",
"Turbidity (Nephelometric turbidity unit)",
"pH",
"δ15N",
"δ15N, nitrate",
"δ15N, nitrate, standard deviation",
"δ18O, nitrate",
"δ18O, nitrate, standard deviation",
],
methods: [
"Carbon and hydrogen and nitrogen and sulfur and oxygen (CHNSO) isotope elemental analyzer, Elementar, Vario ISOTOPE cube; coupled with Isotope ratio mass spectrometer (IRMS), IsoPrime, IsoPrime100",
"Continuous flow analyser, Seal, AA3",
"Elemental analyzer, HEKAtechGmbH, Euro EA",
"FerryBox system, on-line-in-situ (Pertersen et al. 2001)",
"Isotope-ratio mass spectrometry (IRMS)",
"Seston GF/F filter",
"Spectrophotometer Hach DR6000 UV VIS",
],
},
)
Tags: Ästuar ? Ammonium ? Tierhaltungsanlage ? Feinstaub ? Nitrit ? Nitrat ? Eutrophierung ? Nährstoff ? Schwebstoff ? Elbe ? Geografische Koordinaten ? Temperatur ? Hafen ? Salzgehalt ? Studie ? Trübung ? Nordsee ?
Bounding boxes: 8.350335° .. 10.299698° x 53.398585° .. 53.983508°
License: Creative Commons Namensnennung 4.0
Language: Englisch/English
Issued: 2026-08-27
Modified: 2026-09-01
Last harvest: 08.09.2026 03:08
Time ranges: 2022-02-28 - 2022-06-29
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