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Trapping of microplastic particles in Germany’s largest drinking water reservoir: a simulation study Open
Background Microplastic (MP) pollution has garnered global attention due to its ubiquity in marine and freshwater systems, as well as its potential—though still uncertain—risks to human health. While MP concentrations in drinking water rem…
View article: Greenhouse Gas Emissions From a Large and Shallow Tropical African Lake: Contribution of Different Gases and Emission Pathways
Greenhouse Gas Emissions From a Large and Shallow Tropical African Lake: Contribution of Different Gases and Emission Pathways Open
Globally, nutrient enriched water bodies are major contributors to the aquatic greenhouse gases (GHG) efflux to atmosphere. However, few efforts have focused on assessing the contribution from coastal transitional ecosystems in Africa. To …
View article: Achieving harmonized and integrated long-term environmental observation of essential ecosystem variables - eLTER's Framework of Standard Observations
Achieving harmonized and integrated long-term environmental observation of essential ecosystem variables - eLTER's Framework of Standard Observations Open
The development of harmonized, standardized, and integrated environmental observation systems is a key challenge in Earth system science and essential for advancing interdisciplinary research to support global sustainability. The Integrate…
How efficient are pre-dams as reservoir guardians? A long-term study on nutrient retention in small impoundments Open
Assessing nutrient loading and processing is crucial for water quality management in lakes and reservoirs. Understanding the fluxes of nutrients through the hydrological pathway and the involved transformations and corresponding retention …
Phytoplankton community dynamics and vertical nutrient fluxes during the winter‐to‐spring transition in a monomictic temperate reservoir Open
Winter phytoplankton blooms have been documented in several temperate lakes, yet the mechanisms triggering them remain poorly understood. Understanding the ecology of these blooms is key for predicting succession patterns, especially given…
Catchments Amplify Reservoir Thermal Response to Climate Warming Open
Lentic waters integrate atmosphere and catchment processes, and thus ultimately capture climate signals. However, studies of climate warming effects on lentic waters usually do not sufficiently account for a change in heat flux from the ca…
View article: A framework for stabilizing deep-water oxygen under future climate change
A framework for stabilizing deep-water oxygen under future climate change Open
The deoxygenation of deep-water during summer stratification presents a significant challenge for lake ecosystems, further exacerbated by climate change. To better understand future oxygen dynamics and evaluate mitigation strategies, we de…
Catchments Amplify Reservoir Thermal Response to Climate Warming Open
Lentic waters integrate atmosphere and catchment processes, and thus ultimately capture climate signals. However, studies of climate warming effects on lentic waters usually do not sufficiently account for a change in heat flux from the ca…
How efficient are pre-dams as reservoir guardians? A long-term study on nutrient retention Open
Assessing nutrient loading and processing is crucial for water quality management in lakes and reservoirs. Quantifying and reducing external nutrient inputs in these systems remains a significant challenge. The difficulty arises from low m…
View article: Combining a Multi‐Lake Model Ensemble and a Multi‐Domain CORDEX Climate Data Ensemble for Assessing Climate Change Impacts on Lake Sevan
Combining a Multi‐Lake Model Ensemble and a Multi‐Domain CORDEX Climate Data Ensemble for Assessing Climate Change Impacts on Lake Sevan Open
Global warming is shifting the thermal dynamics of lakes, with resulting climatic variability heavily affecting their mixing dynamics. We present a dual ensemble workflow coupling climate models with lake models. We used a large set of sim…
Satellite-Based Detection of Algal Blooms in Large Alpine Lake Sevan: Can Satellite Data Overcome the Unavoidable Limitations in Field Observations? Open
Lake Sevan in Armenia is a unique, large, alpine lake given its surface, volume, and geographic location. The lake suffered from progressing eutrophication and, since 2018, massive cyanobacterial blooms repeatedly occurred. Although the la…
Forest Dieback Alters Nutrient Pathways in a Temperate Headwater Catchment Open
Forested headwater catchments ensure good water quality for downstream ecosystems and human consumption. Climate change and the exacerbating likelihood of extreme events elevate the risk of severe forest dieback. However, the effects of fo…
Evaluating Satellite-Based Water Quality Sensing of Inland Waters on Basis of 100+ German Water Bodies Using 2 Different Processing Chains Open
Remote sensing for water quality evaluation has advanced, with more satellites providing longer data series. Validations of remote sensing-derived data for water quality characteristics, such as chlorophyll-a, Secchi depth, and turbidity, …
Exploring Spatial Aggregations and Temporal Windows for Water Quality Match-Up Analysis Using Sentinel-2 MSI and Sentinel-3 OLCI Data Open
Effective monitoring and management of inland waterbodies depend on reliable assessments of water quality through remote sensing technologies. Match-up analysis plays a significant role in investigating the comparability between in situ an…
Temperatures and hypolimnetic oxygen in German lakes: Observations, future trends and adaptation potential Open
We investigated trends in temperature, stratification, and hypolimnetic oxygen concentration of German lakes under climate change using observational data and hydrodynamic modelling. Observations from 46 lakes revealed that annually averag…
View article: Fifteen Years of Integrated Terrestrial Environmental Observatories (TERENO) in Germany: Functions, Services, and Lessons Learned
Fifteen Years of Integrated Terrestrial Environmental Observatories (TERENO) in Germany: Functions, Services, and Lessons Learned Open
The need to develop and provide integrated observation systems to better understand and manage global and regional environmental change is one of the major challenges facing Earth system science today. In 2008, the German Helmholtz Associa…
Toward Improved Simulations of Disruptive Reservoirs in Global Hydrological Modeling Open
Accurate simulation of reservoirs has been a challenge for global hydrological models due to highly discontinuous water management and uncertainties in reservoir shape representation. In addition, at a global scale, it is crucial to consid…
Assessing Short-Term Variability in Seasonal Patterns: Analysis of Chlorophyll-a Dynamics and Environmental Interactions in Lake Müggelsee Open
Comprehending the dynamics of shallow lakes is vital for effective ecosystem management. Shallow lakes exhibit frequent fluctuations in mixing regime, temperature, and nutrient availability, nurturing a dynamic environment. While numerous …
SaQC: Empowering Hydrological Data Integrity through Automated Quality Control   Open
Global and regional hydrological databases, as well as domain-agnostic repositories, play a crucial role in advancing scientific research and decision-making processes. With new and existing data infrastructures such as TERENO and eLTER, a…
View article: 15 years of Integrated Terrestrial Environmental Observatories (TERENO) in Germany: Functions, Services and Lessons Learned
15 years of Integrated Terrestrial Environmental Observatories (TERENO) in Germany: Functions, Services and Lessons Learned Open
The need to develop and provide integrated observation systems to better understand and manage global and regional environmental change is one of the major challenges facing Earth system science today. In 2008, the German Helmholtz Associa…
A simple model for predicting oxygen depletion in lakes under climate change Open
The advent of climate change has placed aquatic ecosystems at risk for potential declines in water quality, including an increase in the number of lakes experiencing substantial dissolved oxygen (O2) depletion. Through its influence on the…
View article: Contemporary community composition, spatial distribution patterns, and biodiversity characteristics of zooplankton in large alpine Lake Sevan, Armenia
Contemporary community composition, spatial distribution patterns, and biodiversity characteristics of zooplankton in large alpine Lake Sevan, Armenia Open
We studied the quantitative composition, spatial distribution, and temporal dynamics of the zooplankton community of the alpine Lake Sevan, Armenia, the largest surface water in the Caucasus region. This article is providing a long-term in…