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CO-MICC - The open knowledge and data portal on freshwater-related hazards of climate change for decision makers and businesses

CO-MICC is a data portal for freshwater-related climate change risk assessment at multiple spatial scales. It is named after the research project during which it was developed, i.e. the CO-MICC (CO-development of Methods to utilize uncertain multi-model-based Information on freshwater-related hazards of Climate Change) project (2017-2021). The aim of CO-MICC is to support decision making in the public and private spheres dealing with future availability of freshwater resources. This climate service is operated and maintained by the International Centre for Water Resources and Global Change (ICWRGC), and more broadly by the German Federal Institute of Hydrology. The portal comprises data of over 80 indicators of freshwater-related hazards of climate change, which can be visualized in the form of global maps or interactive graphs. The indicators are dynamically calculated based on modelled annual and monthly gridded (0.5°) data sets of climate and hydrological variables. These data sets were computed by a multi-model ensemble comprising four Representative Concentration Pathways (RCPs), four General Circulation Models (GCMs), three Global Hydrological Models (GHMs) and two variants per hydrological model, which amounts to 96 ensemble members in total. They were provided by three European research modelling teams that are part of the ISIMIP consortium. The indicator data correspond to absolute or relative changes averaged over future 30-year periods, as compared to the reference period 1981-2010.

Mytilus edulis growth rates from a three-month mesocosm experiment, Sylt, 2022

This dataset contains individual-level measurements of the blue mussel Mytilus edulis collected during a controlled mesocosm experiment at Sylt, Germany. Data were collected over a three-month period from 2 April 2022 to 27 June 2022. The experiment comprised twelve mesocosms, with four maintained at ambient temperature, four maintained at +1.5°C above ambient, and four at +3 °C above ambient. Observations include shell length, shell-length growth rates, and multiple biomass fractions, including total wet weight, wet tissue mass weight, shell-free dry weight, and ash-free dry weight, from which weight-based growth rates were calculated. All measurements were obtained using standard, traceable laboratory and field instruments. The dataset documents individual-level growth responses of M. edulis under controlled warming conditions and provides a reproducible resource for studies on physiological responses of coastal bivalves to temperature changes.

Grundwasserressourcen

Übersicht über das genutzte, das nicht nutzbare und das potenziell nutzbare Grundwasserdargebot in Mecklenburg-Vorpommern, Mai 2012 Karte A0 im Maßstab 1 : 250 000 digitaler Maßstab 1 : 50 000 Kartenportal-Thema Grundwasserressourcen (t4_gwres) im Dienst a7_hydrogeologie

Uncertainty of Monetary Valuation (WMS)

The points show locations of case studies used to calculate the monetary values of individual ES. The bivariate maps show extrapolated relative monetary values (yellow to green) and uncertainties (yellow to red) of the benefit transfer functions for the ES. : A ) food provision, B) water provision, C) climate regulation, D) extreme event regulation, E) recreation service and F) habitat service, G) raw material provision, H) provision of medicinal resources, I) waste treatment, J) erosion regulation, K) soil fertility regulation and L) maintenance of genetic diversity. Monetary values and uncertainties are grouped into different classes from low to high (in the legend the first number represents uncertainty and the second monetary values, e.g. 11= both low, 12= uncertainty low and monetary value medium, 32= uncertainty high and monetary value medium etc.). The classes were defined by equal interval distances for each ES separately. Major sources of uncertainties include errors resulting from the input data for the benefit transfer model, the model characteristics and the transfer error due to generalization. The latter, for instance, arises when values are transferred to other areas under the assumption that particular socio-environmental conditions, spatial or temporal scale are constant. For the ES food provisioning it is often assumed that agricultural productivity is the same for all croplands, regardless natural composition and anthropogenic management. These results show that although socio-economic indicators are often discussed for benefit transfer applications, the consideration of biophysical heterogeneity in ecosystems is most important.

Video observation during R/V Heincke cruise HE400 in the German Bight with link to raw data files

At 113 stations in the German Bitght underwater videos were recorded with Kongsberg Color Zoom Camera to ground truth sidescan sonar backscatter data. The R/V Heincke was drifting while data acquisition.

Video observation during R/V Heincke cruise HE478 in the German Bight with link to raw data files

At 43 stations in the German Bitght underwater videos were recorded with Kongsberg Color Zoom Camera and GOPRO 3+ Black Edition to ground truth sidescan sonar backscatter data. The R/V Heincke was drifting while data acquisition.

Video observation during R/V Heincke cruise HE501 in the German Bight with link to raw data files

At 63 stations in the German Bitght underwater videos were recorded with Kongsberg Color Zoom Camera and GOPRO 3+ Black Edition to ground truth sidescan sonar backscatter data. The R/V Heincke was drifting while data acquisition.

Benachteiligtes Gebiet

Ein Bestandteil des Digitalen Feldblockkatasters ist die Förderkulisse der benachteiligten Gebiete. Dabei handelt es sich insbesondere um Flächen, deren Ertragsfähigkeit natürlich stark begrenzt ist, wie das beispielsweise bei Sandböden der Fall sein kann. Die benachteiligten Gebiete wurden nach Vorgaben der Europäischen Union abgegrenzt. Damit derart problematische Landwirtschaftsflächen nicht brach fallen und weiter bewirtschaftet werden, gewährt das Land Brandenburg eine Beihilfe, die sogenannte Ausgleichszulage.

Water exploitation index, plus (WEI+), (2000-2022)

An indicator comparing water use versus renewable freshwater resources as percentage in a given area and time resolution e.g. annual water scarcity at country level.

Sources and Sinks of short-lived radium isotopes in the southern North Sea: Implications for the system functioning and budget estimates

Continued population growth increases the demand for space and resources, which in turn enhances anthropogenic pressure on coastal seas. Biotic and abiotic ecosystem understanding in a wider context is essential for effective management of stakeholder interests. This study is a synthesis of recent findings based on short-lived radium isotopes in the shelf ocean North Sea and uses the isotopes to quantify relevant sources and sinks in biogeochemical cycles in the coastal sea in order to enhance system understanding. We improve upon the previously designed box model for the southern North Sea by Burt et al. [2014], using a denser data coverage for nearshore areas. Specifically, the updated model considers decay-supported desorbable Ra from suspended particles and input from submarine groundwater discharge. The model quantified a total of five source terms for Ra: the Wadden Sea, rivers, desorption from suspended particles in the water column, submarine groundwater discharge from beach systems, and porewater exchange at North Sea bottom sediments; whereas considered losses are radioactive decay and mixing with the open North Sea. The mass balance reveals that porewater exchange, e.g., ripple flow, significantly dominates the total short-lived Ra isotope discharge to the southern North Sea. An eddy diffusion based Ra approach was not successful to quantify submarine groundwater discharge from beach systems, due to other major inputs of Ra isotopes from the adjacent Wadden Sea and river discharge, superimposing the minor submarine groundwater discharge from beaches.

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