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Found 15 results.

GPR data in time-lapse during salt water tracer test in Krauthausen test site

GPR data was acquired in crosshole setup before (background) and after (time-lapse) salt tracer injection for 9 planes. In total 42 datasets were measured.

GPR data in time-lapse during hot water tracer test in Krauthausen test site

GPR data was acquired in crosshole setup before (background) and after (time-lapse) hot water tracer injection for 4 planes. In total 39 datasets were measured.

GPR data in time-lapse during saline tracer test in Krauthausen test site: crosshole plane 2926

GPR data was acquired in crosshole setup before (background) and after (time-lapse) salt tracer injection. Plane 2926 includes 2 datasets: the background and day 1 following the injection.

Heat tracer borehole temperature

Salt tracer borehole electrical conductivity

Salt tracer borehole electrical conductivity

Salt tracer GPR FWI

Krauthausen data set

This data set comprises different types of data acquired at the Krauthausen test site. The data are arranged in different folders corresponding to the method used to collect the data. The different folders are: • Crosshole GPR data • Borehole deviation data • Cone penetration test data • Direct-push data (acquired by the UFZ Leipzig) • Flowmeter data • Grain size data • 3D aquifer models derived from multi-point statistical simulations Each folder includes a documentation-file which briefly explains the data structure and which provides additional information e.g. about the exact location of measurement points or about the original source of the data. Papers describing the experimental setup / processing of the data are included as well.

IHAC - Identification of unit Hydrographs and Component flows

Konzeptionelles Modell zur Abflusssimulation. Das Modell ist untergliedert in ein Produktions- und ein Transfermodul. Das Produktionsmodul besteht aus einem Korrekturfaktor von Niederschlag und potenzieller Evapotranspiration sowie einem nicht-linearen Bodenfeuchteindex, das Transfermodul aus zwei Abflusskomponenten mit zwei linearen Speichern sowie unverfälschter Zeitverzögerung. Ein Grad/Tag-Schneeschmelzemodul wird in von Schnee beeinflussten Einzugsgebieten angewendet. Modellinput sind Tageszeitreihen von potenzieller Evapotranspiration und Niederschlag im Einzugsgebiet, sowie Tageszeitreihen der Temperatur zur Schneeschmelze. Als Modelloutput wird der tägliche Abfluss generiert. Zeitliche Einheit in Tagen.

In-situ Raman spectra from Na2ATP solutions with starting pH 3 and 7 at 80,100 and 120 °C for determination of the hydrolysis rate constant of ATP

Extremophiles maintain an active metabolism up to 122 °C (Takai et al. 2008). These extreme conditions are found, for example in hot springs, in deep oceanic and crustal sediments and in hydrothermal vents at mid-oceanic spreading ridges (Edwards et al., 2011; Heuer et al., 2020). Several studies have investigated the diversity of microorganisms and their relationship to the geological environment as well as to responses to changes. However, the physicochemical parameters necessary to sustain metabolism under these conditions, including the stability of essential molecular compounds like adenosine triphosphate (ATP) and adenosine diphosphate (ADP) have been only studied marginally. Adenosine triphosphate and adenosine diphosphate are essential energy stores in all currently known metabolic systems. In living cells, the energy is released by the enzymatically controlled exergonic hydrolysis of ATP to power other vital endergonic processes. The abiotic hydrolysis of ATP is kinetically enhanced at elevated temperatures and low pH values resulting in a very short lifetime of ATP and ADP in aqueous solutions (Hulett 1970; Khan and Mohan 1974; Leibrock et al. 1995). Therefore, the kinetic stability of ATP plays a crucial role in metabolism at extreme temperatures. This aspect has been proposed as a critical factor in determining the limits of living cells (Bains et al. 2015). This data publication compromises all Raman spectra obtained for solutions of Na2ATP with an initial pH of 3 and 7 at 80 °C, 100 °C and 120 °C and for solutions of Na2ADP with initial pH 5 at 100 °C and 120 °C. A hydrothermal diamond anvil cell (HDAC) coupled to a Raman spectrometer was used for in-situ measurements. Pressure was estimated from the vapor-liquid curve of water. In addition to the Raman spectra, the following data are provided: an assignment of peaks in the fitted spectral range, the initial fit parameters, and the fit results.

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