Description: Measurements of dissovled greenhouse gases (GHG) being CO2, CH4 and N2O were performed from 2020 until 2024. Water samples were taken from bridges at tow locations at the river Elbe; Magdeburg and Wittenberge. For CO2, CH4, and N2O analysis, 30 mL water samples were collected in 60 mL plastic syringes. A headspace of 30 mL ambient air was added. After vigorously shaking for one minute the headspace was transferred to pre-evacuated 12 mL exetainers (Labco, UK) and water temperature in the syringe (=equilibration temperature) was measured. Ambient air samples for headspace correction were taken on each occasion. These samples were analysed in the laboratory with gaschromatography (Koschorreck et al 2021). Water physicochemical parameter (temperature, O2, pH) were measured immediately with a WTW-probe. Water-chemical variables were measured using standard methods as described in Kamjunke et al. (2021).
Global identifier:
Doi(
"10.1594/PANGAEA.984194",
)
DataMeasurements(
DataMeasurements {
domain: Unspecified,
station: None,
measured_variables: [
"Alkalinity, total",
"Campaign",
"Carbon dioxide",
"Carbon dioxide saturation",
"Carbon dioxide, deviation from equilibrium",
"Carbon dioxide, dissolved",
"Carbon dioxide, equilibrium",
"Carbon, organic, dissolved",
"Carbon, organic, particulate",
"Chlorophyll a",
"Conductivity, electrical",
"DATE/TIME",
"DEPTH, water",
"Day of the year",
"LATITUDE",
"LONGITUDE",
"Methane",
"Methane saturation",
"Methane, as carbon dioxide eqivalent",
"Methane, deviation from equilibrium",
"Methane, equilibrium",
"Month",
"Nitrogen in ammonium",
"Nitrogen in nitrate",
"Nitrous oxide",
"Nitrous oxide saturation",
"Nitrous oxide, as carbon dioxide eqivalent",
"Nitrous oxide, deviation from equilibrium",
"Nitrous oxide, equilibrium",
"Oxygen",
"Phosphorus, reactive soluble",
"Precipitation, daily total",
"Precipitation, snow",
"Pressure, atmospheric",
"River discharge",
"River kilometer",
"River, water depth",
"Short-wave downward (GLOBAL) radiation, daily sum",
"Site",
"Station label",
"Temperature, air, daily maximum",
"Temperature, air, daily mean",
"Temperature, air, daily minimum",
"Temperature, water",
"Time in hours",
"Wind direction",
"Wind spead, gust",
"Wind speed",
"Year of sampling",
"pH",
],
methods: [
"Calculated",
"Calculated as difference between measured concentrations and calculated equilibrium values",
"Calculated from discharge after Kamjunke et al. (2021)",
"Gas chromatograph",
"WTW probe, hand-held",
"Weather station, DWD",
],
},
)
Comment: Discharge data from official gauges were kindly provided by the German Federal Waterways and Shipping Administration (WSV).
Origins: /Wissenschaft/Helmholtz-Gemeinschaft /Wissenschaft/PANGAEA
Tags: Ammonium ? Windgeschwindigkeit ? Kunststoff ? Gesamtphosphor ? Nitrat ? Ammoniumstickstoff ? Nitratstickstoff ? Globalstrahlung ? Wassertemperatur ? Flusswasser ? Elbe ? Geografische Koordinaten ? Lachgas ? Kohlendioxid ? Methan ? Sturm ? Emission ? Luftprobe ? Schnee ? Wasserprobe ? Wasseruntersuchung ? Niederschlag ? Standardisierung ? Treibhausgas ? River Elbe ?
Region: Elbe
Bounding boxes: 11.643696° .. 11.752294° x 52.12874° .. 52.98746° 10.28333° .. 10.28333° x 52.08333° .. 52.08333°
License: cc-by/4.0
Data access requires registration: click here for further informationLanguage: Englisch/English
Issued: 2025-09-10
Modified: 2025-09-10
Time ranges: 2020-01-14 - 2024-12-02
Accessed 2 times.