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Kiel Bight sediment core liner water-column data from sediment core incubation experiment in 2025

This dataset consists of water chemistry from within three calcite amended and three reference sediment cores from Kiel Bight from February 2025. Dissolved oxygen was monitored non-invasively using optical sensor spots (OXSP5, PyroScience) at 5cm above the sediment. Total alkalinity and calcium ion concentration were measured at regular intervals over four weeks, covering sediment settlement, calcite amendment, deoxygenation and reoxygenated phases. Water exchanges with nitrogen (N2) deoxygenated seawater-maintained calcite dissolution and N2 was determined at the end of the experiment. The dataset enables reconstruction of alkalinity generation, calcium release and oxygen dynamics during enhanced benthic weathering. This is supporting the assessments of carbon dioxide removal (CDR) efficiency and benthic dynamics.

INSPIRE SN Lebensräume und Biotope

Der Datensatz beinhaltet Informationen zu Gebieten mit spezifischen ökologischen Bedingungen, Prozessen, Strukturen und (lebensunterstützenden) Funktionen als physische Grundlage für dort lebende Organismen im Freistaat Sachsen. Dargestellt werden Fauna-Flora-Habitate Lebensraumtypen nach Anhang I, Fauna-Flora-Arthabitate-Habitaten nach Anhang II, Biotope Offenland, Verzeichnisse gesetzlich geschützter Biotope (zukünftig) sowie Daten über die Biotope aus der selektiven Waldbiotopkartierung.

CO2-Entnahme durch Alkalinitätserhöhung - Potenzial, Nutzen und Risiken, Vorhaben: Fischereimanagement unter Unsicherheit

Alkalinity concentrations from two benthic chambers and the ambient bottom water during an in-situ incubation experiment in July 2025

The dataset contains total alkalinity measurements from water samples collected during a 16-day in-situ incubation experiment in the Baltic Sea (2025-07-12 to 2025-07-29). Samples were collected using an automated glass-syringe sampler deployed within two benthic chambers of a Biogeochemical Observatory (BIGO, Sommer et al., 2009) at 54° 34.432' N, 10° 10.776' E, at 22 m water depth. In one chamber, 29 g of fine calcite powder were added to the bottom water. Seven samples per chamber and from the ambient bottom water were taken to monitor alkalinity changes resulting from calcite dissolution, providing a direct measure of the ocean alkalinity enhancement (OAE)

Processed flow discharge data from the Neu Darchau gauging station between 1969 and 2019

The dataset includes processed flow discharge data from Neu Darchau gauging station (Elbe-km 536.4) that provided hydrological information for calculating alkalinity transport potential. The monthly sums were calculated from daily mean discharge measurements from Neu Darchau (station number: 6340110) available from the Global Runoff Data Centre (https://grdc.bafg.de/).

oWLK-GCM objective weather types derived from General Circulation Models (Reanalysis data and Global Climate Model Simulations)

Objective weather types of Deutscher Wetterdienst derived from different Reanalysis and Global Climate Model simulations for the control run (1951-2000) and the projection period (2000-2100). Furthermore, the NAO-index is also provided. On the one hand, the dataset is useful for evaluation of representative circulation statistics in Central Europe, on the other hand, for the analysis of future weather types due to climate change. Added temperature and precipitation data allow to study the weather type effectiveness for these important climate parameters.

Interim Report on National Allocation Plans

This study, commissioned by the UK Department for Trade and Industry and Department for the Environment, Food and Rural Affairs, contains the details of in-depth research into member states' National Allocation Plans. The report draws some high-level conclusion as well as providing details of the analysis used to measure NAPs against the EU ETS directive's criteria. The study covers NAPs that had been submitted to the European Commission in final form by the end of July 2004.

Surveillance de l'etat des lacs au moyen des communautes de vers (FRA)

Utilisation des communautes d'oligachetes comme indicateurs de l'etat des lacs. Mise au point d'indices biologiques d'eutrophisation. Suivi ecologique a long terme du Leman, des lacs de Neuchatel, Morat, Joux, des Brenets, de Bret, Chavannes et Lioson. (FRA)

Etude des processus physico-chimiques lies a l'eutrophisation des lacs; cycle du phosphore dans les lacs (FRA)

Etude des phenomenes, au niveau physique et moleculaire, qui influencent le cycle du phosphore dans l'hypolimnion des lacs eutrophes et a l'interface sediment-eau. Etude des colloides et particules resultant de ces reactions et qui influencent l'ensemble de la circulation des composes chimiques dans le lac. (FRA)

Evaluation de la production primaire ou production organique dans le Leman (FRA)

Le projet vise a evaluer 'in situ' l'assimilation chlorophyllienne du phytoplancton en utilisant le carbone 14 comme traceur. Apres incubation in situ, le plancton est recupere sur membrane filtrante et sa radioactivite mesuree. Par ailleurs, la teneur en chlorophylle est determinee. Cette recherche appliquee vise a caracteriser l'etat trophique du Leman et son evolution. (FRA)

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