Navigation Lock Filling - Modeled Geometry and Physical Model Measurement Data This data set provides the geometry files and physical model measurement data for the filling process of a large navigation lock with a ship in the lock chamber from a water saving basin. The measured data contains water levels, pressure differences, forces on the ship and the opening height of the valves. The lock consists of a lock chamber with a pressure chamber underneath. Both chambers are hydraulically connected with vertical cylindrical filling nozzles inside the floor between both chambers. The three lateral saving basins are connected to the pressure chamber via two lateral culverts each of smoothly varying rectangular shape. Each saving basin has two of these connecting culverts. A vertical lifting valve in each culvert allows the controlled filling operation from the saving basins into the pressure chamber. In the experiment, the lock chamber is filled from the lowest saving basin. The physical model was constructed at a scale of 1:25. The provided data (geometry and model test results) is scaled to prototype scale by Froude's similitude. The data was used in the following publication: Thorenz, C., Schulze, L. (2021): Numerical Investigations of Ship Forces During Lockage. Journal of Coastal and Hydraulic Strucures. Please cite the paper when using the data.
The Global Ozone Monitoring Experiment-2 (GOME-2) instrument continues the long-term monitoring of atmospheric trace gas constituents started with GOME / ERS-2 and SCIAMACHY / Envisat. Currently, there are three GOME-2 instruments operating on board EUMETSAT's Meteorological Operational satellites MetOp-A, -B, and -C, launched in October 2006, September 2012, and November 2018, respectively. GOME-2 can measure a range of atmospheric trace constituents, with the emphasis on global ozone distributions. Furthermore, cloud properties and intensities of ultraviolet radiation are retrieved. These data are crucial for monitoring the atmospheric composition and the detection of pollutants. DLR generates operational GOME-2 / MetOp level 2 products in the framework of EUMETSAT's Satellite Application Facility on Atmospheric Chemistry Monitoring (AC-SAF). GOME-2 near-real-time products are available already two hours after sensing. The operational SO2 total column products are generated using the algorithm GDP (GOME Data Processor) version 4.x integrated into the UPAS (Universal Processor for UV / VIS Atmospheric Spectrometers) processor for generating level 2 trace gas and cloud products. GDP 4.x performs a DOAS fit for SO2 slant column followed by an AMF / VCD computation using a single wavelength. Corrections are applied to the slant column for equatorial offset, interference of SO2 and SO2 absorption, and SZA dependence. For more details please refer to relevant peer-review papers listed on the GOME and GOME-2 documentation pages: https://atmos.eoc.dlr.de/app/docs/
Die Beratung der Integrationszentren richtet sich an bleibeberechtigte Erwachsene, die schon länger hier leben und unterstützt bei Fragen des täglichen Lebens. Sie hilft zum Beispiel bei Problemen mit der deutschen Sprache und bei persönlichen Anliegen. Die Beratung ist kostenlos, aber zeitlich befristet. Die Beratung für Flüchtlinge im Flüchtlingszentrum richtet sich an Flüchtlinge, Asylbewerber, Menschen mit ungesichertem Aufenthalt und Menschen ohne Papiere. Es berät und unterstützt u.a. in vielen verschiedenen Sprachen zu Fragen der Erstorientierung und Perspektivplanung im Aufnahmeland, freiwilligen Rückkehr und zu Deutschsprachförderangeboten. Die Beratung ist kostenlos. Die Beratungsstelle amira ist eine Antidiskriminierungsberatungsstelle und berät Menschen in Fragen von Diskriminierung wegen (zugeschriebener) Herkunft und Religion.
Das Bundesumweltministerium unterstützt die Papierfabrik Palm GmbH bei der Investition in eine neue umweltfreundliche Papiermaschine mit innovativer Trocknungstechnologie. Das Familienunternehmen ist im Bereich der Papier- und Verpackungserzeugung mit Produktionsstandorten in Deutschland und Europa aktiv. Am Stammsitz in Aalen investiert das Unternehmen in eine neue Papierfabrik zur Herstellung von Wellpappenrohpapier für Verpackungen. Erstmals in Europa kann so sehr leichtes Verpackungsmaterial aus Altpapier hergestellt werden. Bei gleicher Festigkeit wie herkömmliches Papier wird ein um 15 Prozent reduziertes Flächengewicht erreicht. Dies wird durch eine Kombination aus Heißlufttrocknung und schonendem Papiertransport ermöglicht. Sie sorgt für eine schnellere und gründlichere erste Trocknungsphase des Papiers, wodurch es ermöglicht wird, dass die Papierbahn stabiler durch die Papiermaschine läuft und weniger Abrisse erfährt. Ein ständiger Abriss der Papierbahnen während der Trocknung wird verhindert. Verpackungen können zukünftig mit Hilfe der innovativen Trocknungstechnologie ressourcenschonender und energieeffizienter hergestellt werden. Bei einer geplanten Jahresproduktion von 700.000 Tonnen Papier können so gut 9.800 Tonnen CO2 pro Jahr eingespart werden. Kunststoff kann zukünftig vermehrt durch Papier als Verpackungsmaterial ersetzt werden. Das Vorhaben setzt einen neuen Standard für die umweltschonende Produktion von Verpackungsmaterial aus Altpapier. Bei erfolgreichem Projektverlauf ist von einer hohen Multiplikatorwirkung innerhalb der Branche auszugehen. Mit dem Umweltinnovationsprogramm wird die erstmalige, großtechnische Anwendung einer innovativen Technologie gefördert. Das Vorhaben muss über den Stand der Technik hinausgehen und sollte Demonstrationscharakter haben.
Aus den bei der Verarbeitung veredelter Papiere anfallenden Abfaellen soll nach bereits erfolgten Vorversuchen eine Wiederverwertung dieser Abfaelle ermoeglicht werden.
The European Union is at a cross-road with the chance to set our path towards a sustainable and just future for all Europeans. Cohesion Policy aims for social, economic and territorial cohesion in the European Union and is a core EU policy to bring the European Union to its citizens, increase their quality of life, while driving simultaneously the green transition. The alignment of the Cohesion Policy post 2027 needs to be future-oriented. To achieve this, the following aspects should be part of the future Cohesion Policy: regions at the center; future-oriented funding topics; earmarked funding; avoiding lock-ins, strategic regional approaches; and just transition. Veröffentlicht in Scientific Opinion Paper.
Considering water as the primary resource necessary for social life, agriculture, industry, and wealth, the importance of groundwater investigation is clear. Apart from many other pollutants, this work focusses on geogenic uranium (U) and radium (Ra), which both stand for natural radionuclides (NORM) that need to be considered frame of groundwater exploration and monitoring programmes due to their specific mobility and chemo-/radiotoxicity. As investigation of U and – to a lesser extent - Ra is done by an increasing number of scientific working groups, the global dataset is improving continuously. In order to give a summarized overview on available and recent literature, scientific papers, reports, and governmental documents have been reviewed for U-238 mass concentrations and Ra-226 and Ra-228 activity concentrations and collected in tables and global maps. Further natural isotopes of U and Ra have been rarely subject of investigation. The collected data were evaluated and interpreted in frame of an associated scientific publication (see citation). From the available data it can be concluded that high geogenic U occur mainly under oxidizing conditions and carbonate rich groundwater, which might be seen as indicator for elevated U concentrations. Certain geological formations, as for example sedimentary, granitic, and volcanic host rocks, promote high U concentrations in groundwater. For geogenic Ra, the search for definite indications proved difficult, since less clear correlation is given for any observed factor. In a global perspective, the most promising evidence for elevated Ra are highly reducing redox conditions, as well as the occurrence of Fe/Mn mineral phases. Furthermore, barite represents a sink for Ra due to its ability to incorporate Ra isotopes. Dissolution of those mineral phases eventually results in co-dissolution of Ra, when Ra is found in host rocks of investigated aquifers, or downstream of such groundwater reservoirs. Furthermore, cation exchange might enhance Ra mobility process, especially in case of sedimentary aquifers with low sorption capacity and/or aquifers with high salinity. Given those chemical requirements for the occurrence of U and Ra, a negative correlation between mother and daughter nuclide can be established. When knowledge on present geological and geochemical constraints is available, elevated U and Ra concentrations might be predictable, as long as anthropogenic influence is excluded.
The 234Th–238U disequilibrium technique has been widely used to estimate the amount of particulate organic carbon (POC) exported from surface ocean layers to the deep sea. This method is based on determining 234Th fluxes from vertical 234Th–238U profiles in the water column and converting them into POC fluxes using POC/234Th ratios measured in sinking particles at a given calculation depth. We present here an extensive repository of POC fluxes, together with Th fluxes and POC/234Th ratios. Covering all the global ocean, classified in 13 regions, season and moment of the bloom and calculated at three different depths: i) a fixed depth (100 m) ii) the reference depth in the paper associated to the base of the euphotic zone iii) the 234Th–238U equilibrium depth. To ensure a compilation representative of the global ocean, the dataset were selected using the division areas proposed by the international network JETZON (Joint Exploration of the Twilight Zone Ocean Network); that agreed a division of the oceans in 13 regions based on their contrasted physics and biogeochemical characteristics. The stations from 234Th publications associated to each JETZON region were carefully selected according to their ability to represent regional environmental conditions. Furthermore, station selection was based on essential criteria such as data quality and accessibility, availability of time series, clear definition of export depth, measurements from established programs, e.g. GEOTRACES, and the presence of other additional relevant ancillary data. The data in the compilation are thus organized by region and include geographic coordinates, season, selected export depth, and other key factors (such as a description of the flux evaluation depth or the export depth zone). After 234Th–238U compilation, 234Th fluxes were calculated, when possible, at the three different depths, i), ii) and iii), under the assumption of steady-state conditions, following Le Moigne et al. 2013. Using POC/234Th ratios, POC fluxes are estimated from Th fluxes and both fluxes were included in the repository. POC/234Th ratios were chosen from pump samples, prioritizing particles larger than 53 μm when available. These ratios must be estimated at the flux calculation depth [i), ii) and iii)]. When they were not available at the calculation depth POC/234Th values were interpolated as described in the readme text file. The values of the ratios are included in the repository, specifying the depth at which they were determined and indicating whether they have been interpolated. Similarly, when 234Th, 238U concentrations were not available at the calculation depth, values were interpolated (see readme text file).
This dataset comprises key carbonate chemistry parameters measured and calculated in incubation experiments under different experimental conditions. pH, water temperature, and salinity were measured with a WTW multimeter (MultiLine® Multi 3630 IDS). Total alkalinity was determined by open-cell titration with an 888 Titrando (Metrohm). Saturation state of calcite and aragonite were calculated using phreeqpython, a Python wrapper of the PhreeqC engine (Vitens 2021) with pH, water temperature, total alkalinity, and major ions as major input, and phreeqc.dat as database for the thermodynamic data (Parkhurst and Appelo 2013). As the original Elbe water was supersaturated with carbon dioxide (CO2) with respect to the atmosphere, its partial pressure of CO2 (pCO2) level decreased during the incubation period with open flasks, which caused an adjustment of calcite saturation state (ΩC) for ambient air conditions. To adapt for the impact of pCO2 variations during the experiment, saturation state of calcite and aragonite was calculated assuming an equilibrium with an atmospheric pCO2 of 415 ppm (normalized ΩC and normalized aragonite sautration state ΩA). Since ion concentrations were measured for only a small number of samples, the ion concentrations of the remaining samples were reconstructed using stoichiometry based on the initial solution composition and total alkalinity. The concentrations of conservative ions (Na+, K+, Cl-, SO42-) were assumed remain constant, while ions related to carbonate precipitation (Ca2+, Mg2+) were calculated based on changes in measured alkalinity (see Figure 5 of the associated paper). Detailed analysis and calculation procedures are described in the Method section of the associated paper.
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