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WMS HWRM-Karten 1.Zyklus Hamburg

Dieser Web Map Service (WMS), Risikogebiete Hochwasserrisikomanagement, stellt flächenhaft die Risikogebiete in Gefahren- und Risikokarten dar. Zur genaueren Beschreibung der Daten und Datenverantwortung nutzen Sie bitte den Verweis zur Datensatzbeschreibung.

Sentinel-5P TROPOMI – Ozone (O3), Level 3 – Global

Ozone vertical column density in Dobson Units as derived from Sentinel-5P/TROPOMI observations. The stratospheric ozone layer protects the biosphere from harmful solar ultraviolet radiation. Ozone in troposphere can pose risks to the health of humans, animals, and vegetation. The TROPOMI instrument aboard the SENTINEL-5P space craft is a nadir-viewing, imaging spectrometer covering wavelength bands between the ultraviolet and the shortwave infra-red. TROPOMI's purpose is to measure atmospheric properties and constituents. It is contributing to monitoring air quality and providing critical information to services and decision makers. The instrument uses passive remote sensing techniques by measuring the Top Of Atmosphere (TOA) solar radiation reflected by and radiated from the earth and its atmosphere. The four spectrometers of TROPOMI cover the ultraviolet (UV), visible (VIS), Near Infra-Red (NIR) and Short Wavelength Infra-Red (SWIR) domains of the electromagnetic spectrum, allowing operational retrieval of the following trace gas constituents: Ozone (O3), Nitrogen Dioxide (NO2), Sulfur Dioxide (SO2), Formaldehyde (HCHO), Carbon Monoxide (CO) and Methane (CH4). Daily observations are binned onto a regular latitude-longitude grid. Within the INPULS project, innovative algorithms and processors for the generation of Level 3 and Level 4 products, improved data discovery and access technologies as well as server-side analytics for the users are developed.

Modification, mobilisation and colloidal stability of engineered inorganic nanoparticles in soils environment

So far, there is little knowledge on the fate of nanoparticles and nanoparticle-associated pollutants in soils. From the state of the art we presume nanoparticle aging in soils to change their surface characteristics, their sorption capacity and mobility. However, the processes controlling nanoparticles aging in soils are hardly investigated. We hypothesize that engineered inorganic nanoparticles (EINP) in soil undergo pedogenic processes such as chemical weathering, accumulation of organic matter and aggregation and that these processes govern both, the mobility of EINP and their sorption capacity for contaminants. Thereby we will mainly address the two key hypothesis of INTERNANO that (i) nanoparticle aging involves reversible and irreversible changes and (ii) that nanoparticle mobility and their interactions with pollutants are determined by environmental conditions rather than by original surface characteristics. We will expose nanoparticle to soils and soil suspensions under various, defined conditions. At the end of the respective incubation time we will study the change in surface properties, aggregation state and contaminant sorption onto nanoparticles, using methods, which are suitable for nano-scale analyses (light scattering, HR TEM, XANES). Size effects on aging will be analysed exemplarily for TiO2 EINPs. The derived process knowledge will help to evaluate the environmental significance of nanoparticles in soils and serve as a basis to predict risks associated with nanoparticle leaching from soils.

WFS HWRM-Karten 1.Zyklus Hamburg

Dieser Web Feature Service (WFS), Risikogebiete Hochwasserrisikomanagement, stellt flächenhaft die Risikogebiete in Gefahren- und Risikokarten zum Downloaden bereit. Zur genaueren Beschreibung der Daten und Datenverantwortung nutzen Sie bitte den Verweis zur Datensatzbeschreibung.

Arctic PASSION - High Resolution Synthetic Aperture Radar based Risk Index Outcome (AP-RIO)

The Risk Index Outcome (RIO) is a critical component of the Polar Operational Limit Assessment Risk Indexing System (POLARIS) developed by the International Maritime Organization (IMO, 2016). RIO evaluates the operational risks for ships navigating in ice-infested waters by evaluating ice conditions and offers a quantifiable measure of risk that aids in decision-making for safe navigation in polar regions based on ship ice class, sea ice type/stage of development (SOD) and sea ice concentration (SIC). The DMI-led Automated Sea Ice Products (DMI-ASIP; Wulf et al., 2024, dataset) provides daily maps of SOD and SIC based on Sentinel-1 SAR imagery, AMSR-2 Passive Microwave and Ice Charts from the Greenland and Canadian Ice Services, combined with novel AI retrieval and processing techniques. In the framework of EU funded Arctic PASSION project, we produced 10 years of satellite observation based weekly RIO maps referred as the Arctic PASSION-RIO (AP-RIO) by leveraging DMI-ASIP datasets. The AP-RIO dataset will provide weekly risk assessment maps for the given ship classes and will support the establishment of a 10 year climatology thereby enabling the assessment of RIO variability in the years covered by the input DMI-ASIP products. The AP-RIO dataset will enhance the safety and efficiency of maritime operations in the polar seas, providing a robust reference for evaluating normal and extreme ice conditions. AP-RIO is produced in the framework of the Arctic PASSION project (European Union's Horizon 2020 research and innovation program under grant agreement No. 101003472) and supported by the DMI-ASIP development team. Algorithm and Processing Scheme: SIC and SOD from ASIP are processed (by taking the mean and mode respectively) into a weekly field based on the daily files for that week. This is done for the time period of 3 Oct. 2014 - 3 Oct. 2024. The weekly SOD is used to find the Risk Value (RV) by looking at the lookup table (Dybkjær et al. 2025a). Risk Index Outcome (RIO) values are computed for each pixel in the field based on the RIO formula (RIO = SIC x RV) using the SIC from ASIP and the found RV. The meaning of the computed RIO values can be interpreted using the table in (Dybkjær et al. 2025b). The RIO field is finally saved to weekly NetCDF files.

Solar Radiation Modification (SRM)

Solar Radiation Modification (SRM) can neither conserve the current nor restore the pre-industrial climate. It would create an unpredictable new global climate with significant regional impacts. This brochure explains the risks of SRM for food security, justice and actual climate action. It explains the various SRM approaches and how they are supposed to work. It also describes the state of regulation and formulates conditions for responsible governance, including a non-use agreement. Veröffentlicht in Broschüren.

Windanalyse in der mittleren Atmosphäre mittels nächtlicher RMR-Lidar-Messungen in mittleren Breiten in Kühlungsborn (AMUN)

Der horizontale Wind nimmt eine Schlüsselrolle in der Dynamik der Atmosphäre ein. Insbesondere beeinflusst er die Ausbreitung und Dissipation von Schwerewellen und thermischen Gezeiten in der mittleren Atmosphäre. Simultane Wind- und Temperaturmessungen bieten dabei die einzigartige Möglichkeit, sowohl kinetische als auch potentielle Energiedichten der Schwerewellen zu berechnen, aus denen wiederum intrinsische Wellenparameter ableitbar sind. Windmessungen in der mittleren Atmosphäre sind jedoch insbesondere im Höhenbereich zwischen 35 und 75 km sehr selten, da hier weder Radiosonden noch Radars Daten liefern und Wind-Radiometer bzw. Satelliten keine für die Untersuchung von Schwerewellen ausreichend große Genauigkeit und Auflösung haben. Deshalb wollen wir in Kühlungsborn/Deutschland (54° N, 12° O) ein neues Lidar aufbauen, mit dem bei gekippten Teleskopen der Horizontalwind aus der Dopplerverschiebung der Rayleigh-Rückstreuung bestimmt werden kann. Neben der Erstellung einer Wind-Klimatologie steht vor allem die Untersuchung der Ausbreitung von Trägheitsschwerewellen in der mittleren Atmosphäre im Vordergrund. Dazu werden wir u.a. horizontale und vertikale Impulsflüsse und die Höhe des Impulsübertrags an die Hintergrundatmosphäre bestimmen. Diese für die Energiebilanz der Atmosphäre wesentlichen Parameter liefern wichtige Vergleichsgrößen für Zirkulationsmodelle. Ferner werden wir intrinsische Welleneigenschaften aus Wind-Hodographen analysieren, die für andere bodengebundene Messsysteme in der Regel nicht zugänglich sind. Unter Einbeziehung des lokalen Hintergrundwindes sollen aufwärts und abwärts propagierende Schwerewellen eindeutig getrennt und quantifiziert werden. Die Analysen werden insgesamt unser Verständnis der vertikalen Kopplung und der zu Grunde liegenden Zirkulation in der mittleren Atmosphäre deutlich verbessern. Das neue Lidarsystem ergänzt ein in Nordnorwegen am ALOMAR-Observatorium (69° N, 16° O) vorhandenes Windlidar, welches ebenfalls vom IAP betrieben wird. In diesem Projekt wird die dabei erworbene Expertise genutzt, um die Entwicklungsrisiken für das neue Lidar zu minimieren und schwerpunktmäßig Windmessungen in der mittleren Atmosphäre durchzuführen und zu interpretieren.

Frueherkennung und Vermeidung von Gefaehrdungspotentialen bei abfallwirtschaftlichen Massnahmen

Entwicklung eines Frueherkennungssystems, anhand dessen das Risikopotential bei Vermeidung, Verminderung, Verwertung und Beseitigung von Abfaellen ermittelt werden kann. Identifizierung von Schwelgasen, getrennte Erfassung von halogenierten Kohlenwasserstoffen. Multisensorkopf zur Erfassung von krebserregenden Loesungsmitteln (Benzol etc.) in geringen Konzentrationen in Gemischen mit Ketonen, Alkoholen, Aldehyden etc. (Schnelltest, Verwendung neuronaler Netze).

Economic Growth and Climate Change in Africa

Supported by UNEP, UNECA and the African Development Bank (AfDB), the Economic Growth and Climate Change in Africa research evaluates how GDP forecasts would be affected under future climate change scenarios, using statistically established climate analogues. The research analyses how climate impacts are transmitted from the microeconomic to the macroeconomic levels. In addition, the research also focuses on the relation between future climate change and poverty risks in Africa. To better inform the policy debate on adaptation to limit the adverse impacts of climate change on development, the research also estimates future adaptation costs in 10 different regions in Africa in two different warming scenarios. Finally, it assesses the development and economic opportunities arising from implementing adaptation and mitigation options in African countries.

A behavioural economic analysis of moral hazards in food production: the case of deviant economic behaviour and disclosure policies on the restaurant, ready-to-eat and retail level

Deviant behaviour on various levels of the food supply chain may cause food risks. It entails irregular technological procedures which cause (increased probabilities of) adverse outcomes for buyers and consumers. Besides technological hazards and hitherto unknown health threats, moral hazard and malpractice in food businesses represent an additional source of risk which can be termed 'behavioural food risk'. From a regulatory perspective, adverse outcomes associated with deviance represent negative externalities that are caused by the breaking of rules designed to prevent them. From a rational choice perspective, the probability of malpractice increases with the benefits for its authors. It decreases with the probability of detection and resulting losses. It also decreases with bonds to social norms that protect producers from yielding to economic temptations. The design of mechanisms that reduce behavioural risks and prevent malpractice requires an understanding of why food businesses obey or do not obey the rules. This project aims to contribute to a better understanding of malpractice on the restaurant/retail level through comparative case studies and statistical analyses of food inspection and survey data. Accounting for the complexity of economic behaviour, we will not only look at economic incentives but consider all relevant behavioural determinants, including social context factors.

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