جست‌وجوی استاد و پژوهشگر

Florian Scholzمشاهده پروفایل

استاد

• Biogeochemistry
• Marine Geochemistry
• Paleoceanography
• +۷ مورد دیگر

Prof. Dr. Florian Scholz is a Professor of Geology and Biogeochemistry at the University of Hamburg , affiliated with the Institute of Geology within the Department of Earth System Sciences . He joined the university in 2024, following leadership of an Emmy-Noether research group at GEOMAR Helmholtz Centre for Ocean Research Kiel. His academic training includes a doctorate (summa cum laude) and habilitation from Kiel University, and a Marie Curie postdoctoral fellowship at Oregon State University. Ph.D., Geomar Helmholtz-Zentrum & University of Kiel (2010) Habilitation, University of Kiel (2019) Diploma in Geoecology, Karlsruhe Institute of Technology & University of Bordeaux (2007) His research lies at the intersection of marine geochemistry , biogeochemistry , and paleoceanography , with a focus on sediment-water interactions , early diagenesis , and the impact of environmental change on biogeochemical cycles . He investigates trace metal cycling (e.g., Fe, Mo, W, Ni), redox processes, and authigenic mineral formation in marine sediments, using field data, laboratory analyses, and geochemical modeling. His recent publications (2024–2025) reveal a strong trend in paleo-redox proxy development (Mo, W, Ni isotopes), trace metal flux quantification in oxygen minimum zones, carbon cycle impacts of sediment disturbance, and ocean-based carbon dioxide removal via seafloor alkalinity enhancement. His work frequently appears in high-impact journals such as Earth and Planetary Science Letters , Geochimica et Cosmochimica Acta , and Communications Earth & Environment . Emmy-Noether-Gruppenleiter, GEOMAR (2016–2023) Marie Curie Fellow, Oregon State University & GEOMAR (2012–2015) Postdoctoral Researcher, SFB 574 & 754 (2010–2012) Prof. Scholz teaches courses including Marine Biogeochemistry , Environmental Geochemistry , and Field Geology at both undergraduate and graduate levels. He leads an active research group focused on marine sediment geochemistry and collaborates widely across international oceanographic projects. His work contributes significantly to understanding past and present ocean chemistry and developing strategies for climate change mitigation.

Markus Reichsteinمشاهده پروفایل

استاد

• Biogeochemistry
• Climate Science
• Ecosystem Ecology
• +۴ مورد دیگر

Markus Reichstein is a Professor for Global Geoecology at Friedrich Schiller University (FSU) Jena and Director of the Biogeochemical Integration Department at the Max Planck Institute for Biogeochemistry. His research focuses on ecosystem responses to climate variability, climate extremes, and the application of AI in Earth system science. He holds a PhD in Plant Ecology from the University of Bayreuth and has pioneered interdisciplinary approaches combining machine learning with environmental modeling. Key roles include leadership in the Michael-Stifel-Center Jena for Data-driven and Simulation Science and founding director of the ELLIS Unit Jena. He contributed to the IPCC Special Report on Climate Extremes and has received prestigious awards such as the Leibniz Prize. His work bridges ecology, hydrology, and atmospheric science, addressing critical global challenges like carbon cycle feedbacks and ecosystem resilience. Recent research emphasizes AI-driven early warning systems for climate risks, integrating observational data with mechanistic models. His team explores land-atmosphere interactions, soil-vegetation dynamics, and the impacts of climate extremes on societal systems. Notable projects include GartenDiv, a citizen science initiative for garden biodiversity, and advancements in global water cycle modeling using hybrid AI-physics frameworks. Awards include the Piers J. Sellers Award (2018), ERC Synergy Grant (2019), and Leibniz Prize (2020). He collaborates with international networks like ELLIS and Future Earth, advancing data-driven solutions for sustainability science.

Philipp Poradaمشاهده پروفایل

استادیار

• Ecological Modeling
• Non-vascular vegetation
• Biogeochemical cycles
• +۵ مورد دیگر

Dr. Philipp Porada is a Junior Professor of Ecological Modeling at the University of Hamburg, affiliated with the Department of Biology within the Faculty of Mathematics, Computer Science and Natural Sciences. He works at the Institute of Plant Sciences and Microbiology, specifically in the Applied Plant Ecology group, based at the Otto Warburg House. His research integrates process-based modeling with ecological field studies to investigate non-vascular vegetation, biogeochemical cycles, and climate-vegetation interactions across multiple temporal and spatial scales. Porada's research focuses primarily on non-vascular vegetation (bryophytes, lichens, and biocrusts), examining their role in global biogeochemical cycles, biodiversity-ecosystem functioning relationships, and paleoclimate dynamics. His work spans from contemporary ecosystem processes to geological time scales, with particular emphasis on the impacts of climate change on non-vascular communities. He has developed several process-based models including LiBry for lichen and bryophyte communities, LiDELS for soil-vegetation interactions, and LYCOm for early vascular plants. His research demonstrates how non-vascular vegetation influences carbon sequestration, water cycling, and soil processes across diverse ecosystems from urban forests to polar regions. Analysis of Porada's publication record reveals a strong interdisciplinary approach combining ecological theory, biogeochemistry, and computational modeling. His work spans multiple ecosystems including peatlands, drylands, urban forests, and coastal blue carbon systems. A consistent theme across his research is understanding how non-vascular vegetation mediates the relationship between environmental conditions and ecosystem functions. His most recent work increasingly focuses on climate change impacts and potential mitigation strategies through vegetation management. Porada leads two major research projects funded by the German Research Foundation (DFG): 'Effects of nutrient limitation on non-vascular vegetation under climate change' and 'The role of early plants for palaeoclimate dynamics'. These projects reflect his dual interest in contemporary environmental challenges and deep-time ecological processes. His collaborative work, evident in his extensive publication record with international researchers, demonstrates strong interdisciplinary connections across ecology, biogeochemistry, and climate science. Dr. Porada maintains an active research laboratory focused on ecological modeling, with particular expertise in non-vascular vegetation dynamics. His team develops and applies process-based models to address questions ranging from micro-scale lichen water relations to global biogeochemical cycles. The research group collaborates extensively with field ecologists, climate scientists, and biogeochemists to ground-truth model predictions and explore new ecological phenomena.

• Biological Oceanography
• Marine Biogeochemistry
• Polar Research
• +۳ مورد دیگر

Prof. Morten Hvitfeldt Iversen is a leading researcher in Polar Biological Oceanography at the Alfred Wegener Institute (AWI). He serves as Section Head of the Polar Biological Oceanography department and leads the bridging group 'SeaPump' collaborating with University of Bremen and MARUM. His work focuses on organic matter production, export, and transformation in oceans, linking small-scale microbial processes to large-scale biogeochemical cycles in high-latitude regions. Iversen pioneers optical techniques to study marine aggregates and their role in the biological carbon pump. Research interests include Arctic and Antarctic carbon dynamics, microbial ecology, and the impact of climate change on ocean systems. He leads projects like the 'SeaPump' initiative and contributes to the 6.3 sub-topic 'The future of the biological pump' under POF IV. His work integrates field observations, mooring data, and satellite measurements to understand carbon fluxes and their climate feedbacks. Recent articles highlight his focus on Arctic carbon sinks, microplastic impacts, and zooplankton roles in the biological pump. Iversen actively participates in expeditions aboard the Polarstern and uses advanced optical tools to study particle dynamics. His contributions bridge experimental and observational science to address global climate challenges.

• Ecohydrology
• Hydrology
• Landscape Ecology
• +۶ مورد دیگر

Professor Dörthe Tetzlaff is a leading figure in ecohydrology, serving as Head of Department (A1) Ecohydrology at the Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB) and as Full Professor of Ecohydrology at Humboldt-Universität zu Berlin, Faculty of Mathematics and Natural Sciences, Geography Department. She also holds an Honorary Professorship at the University of Aberdeen, Scotland. Her work bridges theoretical hydrology with practical applications for water security and environmental management. Professor Tetzlaff's research focuses on ecohydrological processes, particularly using stable water isotopes to understand water cycling, catchment functioning, and landscape connectivity. Her work spans from pristine natural systems to complex urban environments, with particular emphasis on drought resilience, water security, and nature-based solutions. She has pioneered tracer-aided modeling approaches to quantify water storage, fluxes, and ages across the soil-plant-atmosphere continuum. Her publication record shows a clear trend toward increasingly sophisticated integration of multi-tracer approaches with ecohydrological modeling, with recent work focusing on urban systems, drought impacts, and nature-based solutions. The publications demonstrate expertise across hydrology, biogeochemistry, and ecological applications, with strong methodological development in isotope hydrology and modeling techniques. Polubarinova-Kochina Hydrologic Sciences Mid-Career Award of the American Geophysical Union AGU (2024) Water Resource Prize of the Rüdiger Kurt Bode Foundation (2024) Member of the Berlin-Brandenburg Academy of Sciences and Humanities (2023) Fellow of The European Academy of Sciences (2022) Fellow of the Geological Society of America GSA (2020) Professor Tetzlaff actively supervises numerous PhD students and postdoctoral researchers, with her group focusing on cutting-edge ecohydrological research. She leads multiple significant research projects including WETSCAPES2.0, ECCO, ISO-SCALE, and BiNatUr, which address critical questions about water security, climate change impacts, and nature-based solutions in urban environments. Her work is supported by substantial funding from various national and international sources. She leads the Ecohydrology research group at both IGB and Humboldt-Universität zu Berlin, which employs an integrative approach combining field measurements, isotope techniques, and advanced modeling to understand water dynamics across diverse landscapes. The group collaborates extensively with international partners across Europe, North America, and Asia, contributing to global understanding of hydrological processes.

Georg Guggenbergerمشاهده پروفایل

استاد

• Soil Science
• Soil Chemistry
• Biogeochemistry
• +۷ مورد دیگر

Professor Georg Guggenberger is a distinguished academic at Leibniz University Hannover, where he serves as Professor of Soil Chemistry within the Department of Soil Science at the Institute of Earth System Sciences, Faculty of Natural Sciences. In addition to his research and teaching responsibilities, he holds several significant administrative positions including Vice Dean for Research in the Dean's Office of the Faculty of Natural Sciences, Executive Management at both the Institute of Soil Science and Department of Soil Science levels, and Chair of the Selection Committee for the M.Sc. Landscape Sciences program. Prof. Guggenberger's research program focuses on fundamental processes governing soil organic matter dynamics across diverse ecosystems worldwide, from Arctic to tropical regions. His work investigates biotic and abiotic factors influencing the formation, transport, and stabilization of soil organic matter, with particular emphasis on soil fertility maintenance. He employs advanced methodologies including stable isotope approaches, biomarker analyses, microspectroscopic techniques (XPS, ESEM, NMR, NanoSIMS), and molecular biological methods to study biogeochemical interactions on mineral surfaces, dissolved organic matter dynamics, plant-mycorrhizal-soil interactions, permafrost soil organic matter, and impacts of land use and climate change on soil organisms. Analysis of Prof. Guggenberger's recent publications reveals a strong interdisciplinary research program spanning soil biogeochemistry, carbon cycling, soil microbiology, and climate change impacts. His work integrates field experiments along environmental gradients with laboratory manipulation studies to identify underlying mechanisms. The research shows particular strength in understanding organic matter stabilization mechanisms, microbial contributions to soil processes, and development of sustainable soil management practices that address climate change challenges. Prof. Guggenberger actively contributes to academic service through his leadership roles in examination boards and committees, including the Examination Board for Geosciences programs and the Selection Committee for Landscape Sciences. His administrative responsibilities as Vice Dean for Research demonstrate his commitment to advancing research within the Faculty of Natural Sciences at Leibniz University Hannover.

Ralf Merzمشاهده پروفایل

استاد

• Catchment Hydrology
• Flood Risk Assessment
• Climate Change Impact on Water Resources
• +۳ مورد دیگر

Prof. Dr. Ralf Merz serves as Head of the Department of Catchment Hydrology at the Helmholtz Centre for Environmental Research (UFZ) and holds a Full Professorship in Catchment Hydrology at Martin-Luther University Halle-Wittenberg since 2011. His career bridges hydrological modeling, flood risk assessment, and water quality analysis across diverse climates from Central Asia to Europe. MSc in Civil Engineering (Technical University of Karlsruhe, 1997) PhD in Hydrology (Vienna University of Technology, 2002) Habilitation in Hydrology (Vienna University of Technology, 2009) Research Interests span comparative hydrology, flood generation mechanisms, climate change impacts on water resources, and nitrate dynamics in river systems. His work emphasizes process-based understanding of runoff events and regional flood modeling through innovative approaches like the PHEV distribution framework. Scientific Contributions include over 100 publications (2003-2025) on: Flood frequency analysis in changing climates Groundwater recharge in arid regions Hydrochemical response to droughts Remote sensing applications for groundwater studies Multi-response calibration of hydrological models Key projects involve MOSES observatory development, TRACER research school, and Pamir Mountains glaciological studies. Recognitions : APART research grant (Austrian Academy of Sciences, 2006) Leadership extends to directing the Catchment Hydrology department and participating in European hydrological networks like the Bode Hydrological Observatory and TERENO infrastructure. His methodological advancements include flood time-scale analysis and event runoff coefficient regionalization.

Dirk de Beerمشاهده پروفایل

پژوهشگر

• Marine Microbiology
• Biogeochemistry
• Microbial Ecology
• +۳ مورد دیگر

Dr. Dirk de Beer is the leader of the Microsensor Group at the Max Planck Institute for Marine Microbiology in Bremen, Germany. His research focuses on the structure and function of marine sediments, investigating how microbial conversions (e.g., photosynthesis, chemoautotrophy, anaerobic nitrogen/carbon/sulfur cycling) are controlled by transport processes and how microbial species distributions are regulated in hot spots like seeps, microbial mats, and biofilms. His group employs advanced techniques such as microsensors and planar optodes to study high-resolution geochemical dynamics in marine systems. Key research areas include: Biogeochemical cycling of oxygen, sulfur, and carbon Microbial community interactions in sediments and mats Environmental regulation of microbial processes Reactive oxygen species in marine environments Coral bleaching and ocean acidification Recent publications highlight collaborations on arsenic cycling, hydrogen peroxide dynamics, and microbial respiration in extreme environments. Dr. de Beer's work is central to understanding how microbial processes influence global elemental cycles and climate regulation.

Ellen Kandelerمشاهده پروفایل

استاد

• Soil Biology
• Microbial Ecology
• Biogeochemistry
• +۵ مورد دیگر

Prof. Ellen Kandeler is a leading academic in soil biology and microbial ecology at the University of Hohenheim , heading the Department of Soil Biology within the Institute of Soil Science and Site Science. Her work focuses on microbial interactions, soil organic matter dynamics, and the impacts of land use and climate change on soil systems. She actively contributes to interdisciplinary projects funded by the German Research Foundation (DFG), including studies on mineral-organic matter associations, pesticide degradation, and agroecosystem resilience. Research interests include rhizosphere dynamics, biogeochemical cycles, and the ecological functions of soil microorganisms, with applications in sustainable agriculture and environmental protection. She is also involved in institutional roles as a Deputy Ombudsperson for Scientific Integrity and member of committees overseeing large-scale research infrastructure. Her recent publications emphasize climate-soil feedbacks, microbial community assembly, and the biodegradation of agrochemicals. Projects like the DFG-FOR 1695 on agricultural landscapes under climate change highlight her commitment to addressing global environmental challenges through soil science. Prof. Kandeler’s work bridges fundamental and applied research, with a focus on translating soil microbial processes into strategies for sustainable land management and mitigating anthropogenic impacts on soil health.

Bronwyn Cahillمشاهده پروفایل

استاد پژوهشی

• Oceanography
• Remote Sensing
• Marine Biogeochemistry
• +۳ مورد دیگر

Dr. Bronwyn Cahill is a Senior Scientist and Research Group Leader leading the Integrated Optical Remote Sensing Research Group at the Leibniz Institute for Baltic Sea Research Warnemünde (IOW), Germany. Her interdisciplinary research integrates optical remote sensing, in situ data, data science, and bio-optical process modeling to address challenges in coastal and marine ecosystems, with a focus on land-ocean connectivity, underwater lightscapes, and biogeochemical cycles. Education: Ph.D. in Oceanography (2006) – University of Rhode Island, USA BSc (Honours) in Ocean Science (1993) – University of Plymouth, UK BA (Honours) in French and Philosophy (1989) – Trinity College Dublin, Ireland Research Interests: Her work centers on understanding how changing light climates impact marine ecosystems and carbon cycles. Key themes include optical remote sensing applications, climate change effects on coastal seas, marine heatwaves, phytoplankton dynamics, and the development of advanced biogeochemical models for marginal seas like the Baltic. Publication Trends: Her 15 most recent articles (2011-2025) predominantly explore marine biogeochemistry, climate impacts on coastal systems, and ocean-atmosphere interactions. Over 60% focus on Baltic Sea dynamics, employing modeling, remote sensing, and field data to analyze carbon fluxes, algal blooms, and ecosystem responses to environmental stressors. Projects & Grants: She leads several major initiatives: SEAGUARD (2025-2027): AI-driven seagrass adaptation research (BMUKN-funded) ISOLUME (2025-2028): Lightscape indicators in marine ecosystems (BMFTR-funded) KIVib Küste (2025-2026): AI-based Vibrio risk assessment (EFRE-funded) SkaMix-WMT (2025-2028): Water mass transformation in Skagerrak (DFG-funded) Leadership: Heads the Integrated Optical Remote Sensing Research Group at IOW, fostering collaborations across physical, biological, and chemical oceanography to advance predictive capabilities for marine environmental change.

• Climate Science
• Hydrology
• Biogeochemistry
• +۳ مورد دیگر

Prof. Dr. René Orth is a Professor at the University of Freiburg, leading the Modelling of Biogeochemical Systems group. He focuses on land-atmosphere interactions, climate change impacts on vegetation and water systems, and Earth system modeling, with a particular emphasis on soil moisture-vegetation-climate feedbacks and extreme weather events. Education: MSc and BSc in Atmospheric and Climate Science from ETH Zurich (2010), BSc in Earth Science (2008), Erasmus exchange at University of Leeds. His research integrates biophysical and societal perspectives to improve climate projections and hydroclimatic forecasts. Key projects include the EU H2020 MYRIAD multi-hazard framework and the DFG Emmy Noether Group on Hydrology-Biosphere-Climate Interactions. His publications highlight vegetation responses to climate change, drought impacts, and the robustness of modeling approaches. He has supervised over 15 BSc, MSc, and PhD theses and actively reviews manuscripts and proposals for leading journals and funding agencies. Scientific awards include the ETH Excellence Scholarship, SNF Advanced Postdoc Mobility Grant, and DFG Emmy Noether Group Grant. René Orth is affiliated with the Max Planck Institute for Biogeochemistry (Jena), Die Junge Akademie, and the institute's graduate school (IMPRS-gBGC), contributing to science-policy interfaces and advancing climate science through interdisciplinary research.

Shengjie Liمشاهده پروفایل

پژوهشگر

• Marine Biogeochemistry
• Microbial Ecology
• Nitrogen Cycling
• +۳ مورد دیگر

Shengjie Li is a Researcher in the Department of Biogeochemistry at the Max Planck Institute for Marine Microbiology (MPI-Bremen), Germany. Their postdoctoral research focuses on microbial ecology and biogeochemical processes in marine oxygen minimum zones, particularly linking particle properties, microbial communities, and nitrogen-loss dynamics. Li holds a PhD from Peking University (2017-2022) and conducted a guest PhD at the University of Calgary (2020-2021). Research interests include microbial responses to environmental change, nitrogen cycling in aquatic systems, and the interplay between organic carbon, sulfur, and iron in driving nitrate reduction. Key projects explore isotopic signatures of N₂O production, methane dynamics in groundwater, and the role of biochar in stress resistance. Publications highlight contributions to understanding N₂O emissions, cold seep nitrogen-loss mechanisms, and microbial adaptations in fluctuating environments. Ongoing work bridges microbial community analysis with biogeochemical modeling to address global climate impacts.

• Soil Biogeochemistry
• Carbon Cycling
• Mineral-Soil Interactions
• +۳ مورد دیگر

Dr. Marion Schrumpf is a Group Leader in the Soil Biogeochemistry research group at the Max Planck Institute for Biogeochemistry, affiliated with the Department of Biogeochemical Processes. Her work focuses on soil carbon dynamics, mineral-organic matter interactions, and climate change impacts on soil systems. Research areas: Soil biogeochemistry, carbon cycling, mineral-soil interactions, nutrient stoichiometry, microbial ecology, and climate modeling. Email: mschrumpf@... Phone: +49 3641 57-6182 Office: B2.015 Her recent publications address themes like mineral control over soil carbon stabilization, drought effects on soil processes, microbial stoichiometric adaptation, and the Jena Soil Model's role in simulating carbon-nutrient interactions. She leads efforts to disentangle the complex relationships between land use, mineralogy, and soil organic matter turnover across diverse ecosystems.

• Biogeochemistry
• Ecosystem Ecology
• Remote Sensing
• +۳ مورد دیگر

Ulisse Gomarasca is a doctoral researcher at the Max Planck Institute for Biogeochemistry's Department Biogeochemical Integration, affiliated with the International Max Planck Research School for Global Biogeochemical Cycles (IMPRS-gBGC). He works within the Global Diagnostic Modelling group and Ecosystem Function from Earth Observation project team, focusing on understanding ecosystem functioning through eddy covariance fluxes and biodiversity links. Education: Master's in Ecology and Biodiversity from University of Innsbruck Research: Spatiotemporal dynamics of ecosystem functioning, Sun-Induced Chlorophyll Fluorescence, drought legacy effects on productivity Methodologies: Remote sensing integration with eddy covariance networks, biodiversity-ecosystem function analysis His publications address terrestrial ecosystem responses to climate extremes, scaling of plant traits to ecosystem level, and development of remote sensing tools like the Biodiversity Observing System Simulation Experiment (BOSSE). This work combines satellite observations with ground-based flux measurements to understand global biogeochemical patterns. Contact: ugomar@bgc-jena.mpg.de

• Marine Biogeochemistry
• Geochemical Evolution of Oceans and Atmosphere
• Gas Hydrates
• +۷ مورد دیگر

Klaus Wallmann is a Professor and Head of the Research Unit Marine Geosystems at GEOMAR Helmholtz Centre for Ocean Research Kiel and the Christian-Albrechts-University (CAU) Kiel. His research focuses on marine biogeochemistry, particularly gas hydrates, fluid flow, nutrient cycling, and the geochemical evolution of oceans and atmosphere. He leads major research initiatives including the Cluster of Excellence 'The Future Ocean' and coordinates EU projects such as MIGRATE and GEOSTOR. Dipl. Chemistry, Philipps University of Marburg (1986) Dr. Ing., TU Hamburg-Harburg (1990) PD Dr. habil (Geosciences), CAU Kiel (1999) His research interests center on marine biogeochemical processes, including the microbial degradation of organic matter, gas hydrate formation, nutrient recycling, isotopic trends in marine carbonates, and numerical modeling of ocean-atmosphere evolution. He investigates cold seeps, mud volcanoes, and subduction zones to understand volatile cycling and seafloor dynamics. His recent publications reveal a strong focus on carbon cycling and climate mitigation, particularly through sub-seabed CO₂ storage, seafloor alkalinity enhancement, and the impact of anthropogenic activities on marine carbon storage. His work combines field observations, experimental data, and advanced numerical models to explore long-term geochemical trends and modern environmental challenges. Scholarship from the Evangelical Study Foundation, Haus Villigst (1982–1986) Wallmann has supervised numerous students and collaborators, contributing to major discoveries in marine methane dynamics, gas hydrate systems, and ocean deoxygenation. His research is supported by extensive fieldwork, ocean expeditions, and leadership in collaborative programs such as SFB 574 and SFB 754. He has played a central role in assessing the environmental impacts of CO₂ storage and natural gas hydrate exploitation. He leads research in marine geosystems at GEOMAR, focusing on biogeochemical feedbacks, fluid-sediment interactions, and climate-relevant gas cycling. His team integrates geochemical data, isotopic analyses, and modeling to study processes from molecular to global scales.