Section 4.4 | Hydrology

Where does water go when it rains? Where are floods generated, and how? What controls stream water quality during storm events?

The Drought-ADAPT project, funded by the German Federal Ministry of Education and Research (BMBF), addresses the growing risks of drought and El Niño-related impacts in Vietnam’s Central Highlands—an agriculturally important region vulnerable to climate extremes.

Climate change poses tremendous challenges in the realm of water resource management. For central Europe this has become especially apparent after the droughts of 2018 and the floods of 2021.

The G3P consortium combines key expertise from science and industry across Europe that optimally allows to (1) capitalize from the unique capability of GRACE and GRACE-FO satellite gravimetry

The adverse impacts of hydrological extremes are driven by complex interactions between hazards, exposure, vulnerability, and adaptation efforts.

As climate change and urban expansion accelerate, effective adaptation is urgently required to counteract the increasing trend of flood damage.

The aim of this project is to develop a modelling system to produce a coherent regional flood risk assessment covering the whole of Germany.

RIM2D is a highly performant hydraulic 2D computer model for the simulation of pluvial and fluvial floods, which has been developed for several years by the Section Hydrology and is used in various projects. In the Helmholtz validation project RIM2D, in addition to further technical developments and validations of the model based on historical events, the commercialization and market introduction of RIM2D are being prepared

The floods in North Rhine-Westphalia and Rhineland-Palatinate in July 2021 led to the loss of over 180 lives and economic damage of over 30 billion euros. KAHR is supporting the (re)construction process from a scientific perspective and helping to make the affected regions more resilient.

[Translate to English:]

Floods are the natural hazard that affects the most people worldwide. The HI-CliF project aims to quantify flood risks, focussing on the impact on health and well-being. In particular, adaptation pathways will be developed in the context of future climatic and socio-economic changes. Core competencies: 1. Multi-sector flood risk analysis 2. Climate adaptation pathways 3. Health-Risk due to water contamination 4. Public-health interventions in the context of Natural Hazards Young Investigators Group Leader: Nivedita Sairam

[Translate to English:] The project AVOSS "Impact-based forecasting of heavy rain and flash floods at different scales: potentials, uncertainties and limitations" investigates the process chain of flash floods starting from meteorology via hydrology and hydraulics up to damage and risk assessment.

Flooding events in urban and non-urban settings represent a major cause of insured losses, with costs of several billion US$/year globally (e.g., US$ 60 billion in 2016).

Terrestrial Environmental Observatories

Compound events receive increasing attention in recent years with the aim of better understanding how climate variables combine to produce extreme impacts. Actually, many disastrous floods are compound events, where multiple sources of flooding overlap or interact in such a way that the flood impact is aggravated.

Regulators and industries are challenged by the difficulty to analyze and predict the impact of nonlinear environmental processes on short-term and long-term responses of ecosystems to environmental change.

The effect of water storage variations on in-situ gravity measurements and their use for hydrology

GFZ Section 5.4 is involved in MOSES with the modules "Monitoring of water storage changes" and "Water and sediment monitorin" in the event chains "Hydrological extremes" and "Heat waves".

Regional Research Network “Water in Central Asia” The research network “Water in Central Asia” is primarily focused on improving the scientific and technical basis of the transboundary water resources management through conducting the state-of-the-art research works, fostering collaboration and experience exchange among the Central Asian and foreign partners.

Extreme, large-scale river floods typically affect more than one river basin.

Human activities and climate change are rapidly changing the Earth’s surface.

Die langfristige Vision von TerraQ ist die Schaffung einer neuen Geodäsie auf der Grundlage der Quantenphysik und der allgemeinen Relativitätstheorie, die einzigartige Perspektiven für die Satellitengeodäsie, die gravimetrische Erdbeobachtung und Referenzsysteme eröffnet.

Das Forschungsprojekt Cosmic Sense wird seit 2018 von der DFG finanziert (FOR 2694) und befindet sich derzeit in der zweiten Phase.

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