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Found 16 results.

Sentinel-2 MSI - Level 2A (MAJA Tiles) - Germany

This collection contains Sentinel-2 Level 2A surface reflectances, which are computed for the country of Germany using the time-series based MAJA processor. During the Level 2A processing, the data are corrected for atmospheric effects and clouds and their shadows are detected. The MAJA L2A product is available online for the last 12 months. Further data are kept in the archive and are available upon request. Please see https://logiciels.cnes.fr/en/content/maja for additional information on the MAJA product. The MAJA product offers an alternative to the official ESA L2A product and has been processed with consideration of the characteristics of the Sentinel-2 mission (fast collection of time series, constant sensor perspective, and global coverage). Assumptions about the temporal constancy of the ground cover are taken into account for a robust detection of clouds and a more flexible determination of aerosol properties. As a result, an improved determination of the reflectance of sunlight at the earth's surface (pixel values of the multispectral image) is derived. Further Sentinel-2 Level 2A data computed using MAJA are available on the following website: https://theia.cnes.fr

Sentinel-2 MSI - Level 3A (MAJA/WASP Tiles) - Germany

This collection contains synthesized Sentinel-2 Level 3A surface reflectances for Germany on a monthly basis computed by the WASP processor (which utilizes L2A products derived from the MAJA processor). During the Level 3A processing, atmospherically corrected data from a predefined time interval are collected, weighted based on temporal distance and integrated to a new data set with the aim of removing clouds. Thereby, monthly Sentinel-2 Level 3A composites are provided for whole Germany. Please see https://logiciels.cnes.fr/en/content/maja for additional information on the MAJA product. Further Sentinel-2 Level 3A data computed using MAJA are available on the following website: https://theia.cnes.fr

A database of caldera collapse analogue models stretched under extensional conditions

This dataset presents the raw data from one experimental series (named CCEX, i.e., Caldera Collapse under regional Extension) of analogue models performed to investigate the process of caldera collapse followed by regional extension. Our experimental series tested the case of perfectly circular collapsed calderas afterward stretched under regional extensional conditions, that resulted in elongated calderas. The models are primarily intended to quantify the role of regional extension on the elongation of collapsed calderas observed in extensional settings, such as the East African Rift System. An overview of the performed analogue models is provided in Table 1. Analogue models have been analysed quantitatively by means of photogrammetric reconstruction of Digital Elevation Model (DEM) used for 3D quantification of the deformation, and top-view photo analysis for qualitative descriptions. The analogue materials used in the setup of these models are described in Montanari et al. (2017), Del Ventisette et al. (2019), Bonini et al., 2021 and Maestrelli et al. (2021a,b).

A database of analogue models testing the interaction between magmatic intrusion-related doming and caldera collapse

This dataset presents the raw data from one experimental series (named CCEX, i.e., Caldera Collapse under regional Extension) of analogue models performed to investigate the process of caldera collapse followed by regional extension. Our experimental series tested the case of perfectly circular collapsed calderas afterward stretched under regional extensional conditions, that resulted in elongated calderas. The models are primarily intended to quantify the role of regional extension on the elongation of collapsed calderas observed in extensional settings, such as the East African Rift System. An overview of the performed analogue models is provided in Table 1. Analogue models have been analysed quantitatively by means of photogrammetric reconstruction of Digital Elevation Model (DEM) used for 3D quantification of the deformation, and top-view photo analysis for qualitative descriptions. The analogue materials used in the setup of these models are described in Montanari et al. (2017), Del Ventisette et al. (2019), Bonini et al., 2021 and Maestrelli et al. (2021a,b).

Sonderforschungsbereich (SFB) 574: Volatile und Fluide in Subduktionszonen: Klima-Rückkopplungen und Auslösemechanismen von Naturkatastrophen, Krustale Einflüsse auf das Volatilen-Inventar differenzierender Arc-Magmen, und Konsequenzen für Vulkangefahren

Regulation of LRR-Receptor kinases in plant innate immunity

In nature most plants are resistant to most pathogens. A key aspect of this phenomenon is host recognition of characteristic microbial molecules, known as PAMPs (Pathogen/ Microbial Associated Molecular Patterns), by specific receptors. Flagellin, the main building unit of the mobility organ of bacteria, is perceived by the receptor kinase FLS2 (FLagellin Sensing 2) at the surface of plant cells. Binding of flagellin to the domain of FLS2 exposed to the extracellular compartment induces a set of physiological responses inside the cells, which we can easily measure in our lab and which ultimately contribute to limitation of bacterial invasion and plant resistance. How does FLS2 function to transmit the signal from outside of the cell to its inside? Recently, we could demonstrate that upon stimulation with flagellin, FLS2 associates very quickly at the plasma membrane with a second receptor known as BAK1 (BRI1-Associated Kinase 1). Mutant plants lacking the BAK1 protein respond less to flagellin as well as to other PAMPs, indicating its role in positive regulation of PAMP detection. A big surprise is that BAK1 is already known as the co-receptor of the membrane BRI1. BRI1 is another receptor kinase which recognizes the phytohormone brassinosteroids involved in regulation of plant growth and development. The novel function of BAK1 in innate immunity is being further addressed in our lab with the current project using a combination of biochemistry, molecular biology and genetics. In particular we want to study detailed mechanisms of BAK1 and FLS2 for transducing the flagellin signal. Our studies have an essential role in understanding plant innate immunity in a broad sense, and we hope this will help to elucidate molecular mechanisms regulating plants receptor kinases not only in defense but also in development.

Documentation of IFAT 2016 Side Event Climate-friendly Waste Management through NAMAs in Emerging Economies and Developing Countries

Nationally Appropriate ⁠Mitigation⁠ Actions (NAMA) allow emerging economies and developing countries to design waste management strategies and systems that lead to effective greenhouse gas (GHG) reductions. On a side event at IFAT / Munich in June 2016 international experts from climate policy and waste management exchanged their experiences on key features of Waste-NAMAs, such as funding and financing, participatory processes and informed decision-making across all levels and involvement the private sector.  The example of monitoring, reporting and verification (MRV) of Peruvian Waste-NAMA demonstrated the workload involved and the demands for standardized methods.

SO 155 - HYDROARC^Vorhaben: Untersuchung der Porenwassergeochemie in den Sedimenten der Bransfield Strasse, Vorhaben: Spezielle geochemische und isotopengeochemische Untersuchungen vulkanischer Gesteine und die Datierung der Sulfide der Bransfield Strasse (Antarktis)

Geochemie von Chlor, Brom, Jod und Borisotope in Ozeanbodengesteinen und Sedimenten

Das Vorhaben befasst sich mit der Geochemie der Halogene sowie der Borisotopengeochemie in Ozeanbodengesteinen und Tiefseesedimenten. Die primaere Zusammensetzung der ozeanischen Kruste und das Verhalten der Elemente bei fraktionierter Kristallisation basaltischer Magmen, soll durch eine Analyse von Basaltglaesern untersucht werden. Das geochemische Verhalten dieser Elemente bei Alterationsprozessen in der ozeanischen Kruste wird durch die Untersuchung unterschiedlich veraenderter Tiefseebasalte geklaert werden koennen. Methoden: Thermionenmassenspektrometrie negativer Ionen, ICP-Atomemissionsspektrometrie, Roentgenfluoreszenzanalyse u.v.a.mehr.

Modellierung der Wolga-Kama-Kaskade

In der festgelegten Definitionsphase des Projektes 'Modellierung der Wolga-Kama-Kaskade', die als erstes Stadium des Wolga-Rhein-Projektes vorgesehen ist, erfolgt der Aufbau eines Geo-Informationssystems des Wolga-Abschnittes von Nishnij Novgorod bis Tscheboksary, insgesamt 365 km (Wolga-Fluss-km 820-1185). Die Einbindung von Satelliten- und Luftbildinformationen sowie alle terrestrisch erhobenen Daten resultiert im Gelaendemodell, das anhand von hydrologischen Naturdaten validiert und danach geeicht wird. Anwendungsziele des Projektes sind: - Diagnose und Prognose der instationaeren Stroemungsvorgaenge innerhalb der Stauhaltungen; - Instrument zur Beurteilung von wasserwirtschaftlichen, kulturtechnischen und oekologischen Fragestellungen im Wolgaeinzugsgebiet; - Betriebs- und Trainingsinstrument fuer die Regelung und Steuerung der Staustufen, sowie fuer Fragestellungen der Wasserwirtschaft. Das Leitziel des Wolga-Kama-Definitionsprojektes soll die Erstellung eines Modellierungsinstrumentes sein, um die Betriebsweise der einzelnen Staustufen untereinander zu koordinieren und die kontraeren Nutzungsanforderungen aus Wasserkraft, Hochwasserschutz, Umweltschutz, Landeskultur und Oekologie weitgehend zu harmonisieren.

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