Tvärminne Zoological Station’s Post

🌊 Exciting insights from the depths of the Danube River! 🌊   In #2023 our Marine Research team has been hard at work, utilizing the power of Acoustic Doppler Current Profilers (ADCP) to gather data on the water flow velocities and direction of the Danube River. These data served as input for hydraulic modeling. The vibrant image below, generated from our Teledyne Marine RDI #RiverRay ADCP data collection overlaid on #multibeam bathymetry, vividly showcases the dynamic movement of water from one shore to another. 🚢💧   ADCP technology is a game-changer in oceanography, allowing us to measure current speeds across entire water columns, from the seafloor to the surface. This enables us to understand how ocean currents transport nutrients, heat, and sediments, which is vital for studying marine ecosystems, climate change, and geological processes.   Key highlights of ADCP technology:   Measures current speed at various depths with high precision 🎯 Provides comprehensive data on the movement of water and its constituents 📊 Supports safe and efficient planning for ROV dives and other marine operations 🌊 Despite its advantages, ADCPs come with challenges, such as balancing data precision with measurement range and ensuring reliable readings in clear or turbulent waters. Nevertheless, their ability to deliver high-resolution insights into ocean dynamics makes them indispensable in marine research.   Join us in celebrating these advancements and stay tuned for more groundbreaking discoveries from our dedicated Marine Research team! 🌐📈   #MarineResearch #Oceanography #ADCP #OceanCurrents #ClimateChange #MarineScience #Innovations #TechInScience #MarineResearch #Oceanography #ADCP #OceanCurrents #ClimateChange #MarineScience #Innovations #TechInScience #HydraulicModeling #WaterFlow #RiverScience #DanubeRiver #Hydrology #EnvironmentalScience #MarineTechnology #WaterResearch #ScienceInnovation #TeledyneRDI #RiverRay #DataScience #Bathymetry #CurrentProfiling #ScientificResearch #WaterConservation #MarineEcosystems #SedimentTransport #NutrientCycling

Deep seafloor currents are far more complicated than previously thought. Our new paper led by Lewis Bailey out today in Nature Geoscience analyses a remarkable array of 34 deep sea moorings deployed offshore East Africa over 4 years to show remarkable tidal to seasonal variations in bottom currents. https://lnkd.in/dz8ftEfd These sorts of detailed observations are critical for understanding the important role bottom currents play in transporting sediment, carbon and pollutants across our planet. This study underpins the importance of long term, sustained observations and also stresses a need for more spatially extensive and near seabed measurements that are so rare in the deep sea - meaning that we discover new and unexpected things about the dynamics when we do make them. The opportunity to use fibre optic cables for sensing of the ocean is one way that this gap could be filled. Huge thanks to the team from Fugro who acquired much of the incredible seafloor and current monitoring data and Ricardo Argiolas Regis Wallerand Giuseppe Malgesini Marco Fonnesu for enabling this research. Thanks to the project science team Elda Miramontes García Ian Kane James Hunt, National Oceanography Centre MARUM - Center for Marine Environmental Sciences, University of Bremen The University of Manchester University of Calgary

We (Aleksey Shestov, Laura van Dijke, Fonger Ypma, Tom Meijeraan, Hayo Hendrikse, and me) published an Elsevier data article covering field experiments in the Arctic (https://lnkd.in/eF_kabhq) investigating sea ice restoration via artificial flooding (https://lnkd.in/eP9qMjFM). The data article comes with a publication of the full dataset (https://lnkd.in/ejzxKCCu). Both as golden access! Please note that the data are focusing on geophysical aspects. For now, I've little competence in other integrated aspects of geo-engineering (e.g., biology, society, politics) and thus feel not qualified to write or comment about those. While the geophysical data are currently analyzed (stay tuned!), we hope that it will also be valuable to other researchers. It can help substantiate scientific arguments, validate (snow) ice models (growing & melting), and support informed decision-making - ultimately enhancing our understanding on the specified topic. We want to thank the Sysselmesteren på Svalbard for allowing us to conduct the field experiments in the Vallunden lagoon. We further want to thank The University Centre in Svalbard for their support in preparing the field campaign, and specifically GIJSBERT Breedveld for his support. Most data was collected with sensors of the SIMBA Snow and Ice Monitoring and METER Group. Arctic Reflections would like to thank UNIIQ - Finance for the Future and CarbonFix for their financial support, allowing them amongst others to purchase the necessary equipment. We thank the TU Delft Climate Action Programme for supporting the research (Seed Fund Grant 2023 April). Last but not least we want to thank Oriane Laromiguière (Check out her article on the field campaign here: https://lnkd.in/ei-Ssx4w) and Dr. Léo Decaux for supplying us with six frozen pizzas in the moment of greatest hunger. #data #arctic #fieldwork #ice #seaice #melting #snow #snowice #slush #flooding

First do no harm! Incredible study which accentuates the importance of further studies of sea floor morphology and ocean currents. Orders of magnitude of additional studies are needed to understand how the oceans currents and sea floor morphology and composition control dominant components of heat transfer on Earth. Hopefully, this will lead to an exponential increase in funding. Other avenues of research which are also needed include deploying a massive number of stations to measure temperatures and currents around ocean spreading centers, subduction zones, subsea volcanoes and subsea fluid vents. More studies are also needed to understand the earth’s crust, transitions to mantle and core. Hopefully, you will inspire a new generation of researchers and get the massive funding you require.

New study provides insight into how some species thrive in dark, oxygen-free environments – Woods Hole Oceanographic Institution: New research on single-celled organisms sheds light on deep-sea energy sources. https://lnkd.in/enzwVyV4

Good use of scientific colourmaps in this paper on deep sea floor currents.

With ever more light in all areas of the world, also at the remotest places on Earth - in the middle of the ocean, artificial light is emitted into the environment. Be it oil platforms, vessels or fishing boats, lighthouses, harbors or cities - either by accident or on purpose, artificial light is sent through the sea surface towards an ecosystem which is based on the slow but consistent change of darkness and brightness, as everywhere else. While a lot of research had been done for land species and birds, research in the marine environment has still seeing less coverage. This is where GAME (Global Approach through Modular Experiments), an international project introduced by GEOMAR Helmholtz Centre for Ocean Research Kiel together with several universities carries out research already in the 4th year. Two-person teams of students partner to find out what light does to marine species. This year, research is performed in the field of marine macroalgae. Before, the effects of light exposure was studied on snails, crabs and sea urchins, on mussels, and on benthic fouling communities. The project website: https://lnkd.in/erMMDuTn Blogs of project teams: https://lnkd.in/eZf5CkiR This year's project on algae: https://lnkd.in/eBSBVE_y #research #science #lightpollution #marinelife

The OceanXplorer, a high-tech private research vessel, is part of a bold effort to explore and understand the deep sea—one of the most mysterious habitats on Earth. This 286-foot vessel, equipped with cutting-edge technology like helicopters, submersibles, and a sonar array, launched from the Azores in the North Atlantic Ocean in June. Its mission: to map and study the underwater world that remains largely unexplored. The ship’s sophisticated tools allow it to delve into some of the deepest and least accessible parts of the ocean, providing new insights into marine life, geology, and underwater ecosystems. The OceanXplorer is designed for extended scientific missions, with its helicopter and small boats facilitating data collection in remote locations. Its sonar capabilities enable the mapping of underwater terrain with unprecedented detail, which is crucial for understanding the structure and ecosystems of the deep ocean. The vessel’s research aims to unlock the mysteries of this unexplored habitat, shedding light on the life forms and geological features that exist miles below the surface. By documenting these findings, the mission helps build a foundation for future deep-sea exploration and conservation efforts. This deep-sea research is not only about discovery but also about protecting these fragile ecosystems. The ocean remains one of the planet’s final frontiers, and missions like this are vital for understanding and preserving its biodiversity. As scientists aboard the OceanXplorer gather data, they hope to demystify the deep sea and inspire further exploration of Earth’s most enigmatic environment.

We’re proud to announce that our approachable experts are currently presenting at the International Association of Hydrogeologists World Groundwater Congress 🌍 Anne Gibson and Dr Richard Cresswell are currently sharing their research findings at the IAH - International Association of Hydrogeologists World Groundwater Congress in Davos, Switzerland. 🔬 Ecohydrology: Richard and Anne are showcasing the research that they have conducted on the ancient Doongmabulla Springs Complex in Central Queensland. Over the years, the team applied techniques such as zonation studies, seed bank germination, and satellite monitoring to collect critical insights into safeguarding this precious ecosystem. Their findings have also highlighted the impact of cattle grazing and feral pigs on the springs. 🛰️ Remote Sensing and Hydrogeology: Richard will host a session on using satellites and drones to understand the ecosystems dependent on these Spring Complex, showcasing our expertise in applying innovative remote sensing technology. 📊 Groundwater-Dependent Ecosystems: Richard is also presenting a poster session on his groundwater-dependent ecosystems exposure assessments work in the Robe Valley and Rhodes Ridge, located in Western Australia’s Pilbara region. This international recognition of our team’s work underscores our commitment to delivering high-quality, innovative solutions in collaboration with our clients. We’re eager to share the insights the team gains from this event, which fosters interactions with the scientific community, industry experts, public administrators, international organisations and development agencies. Stay tuned! #EcoLogicalAustralia #TetraTech #LeadingWithScience #ApproachableExperts #FindYourPeople #EnvironmentalConsulting #MakeADifference #IAH #IAH2024Davos #Hydrogeology #GroundwaterDependantEcosystems #EnvironmentalLeadership #InnovationInScience #RemoteSensing #GroundwaterResearch #WestAustralia #Queensland #Davos

🌲 #EGU25: Call for Abstracts for Session HS10.2 - Forest Ecohydrology 🌳 Tempted to join #EGU25? Hesitate no more! This session is for anyone working to better characterise, observe, or model ecohydrological processes in forest ecosystems. 🔬 I'm especially looking forward to seeing #interdisciplinary contributions that integrate innovative #geophysics or remote sensing approaches with conventional observation methods to reveal new insights into forest–water interactions. 🗓️ Check out the session and submit your abstract here: https://lnkd.in/eH59Q6SG 📖 Session abstract: Forest ecosystems interact very strongly with hydrological processes, at various spatial and temporal scales. They have co-evolved with soils and topography over a long period of time, and their potentially deep root systems enable cross-cutting exchange between the ground water, soil water, plants and the atmosphere. Our ability to detect these sometimes hidden interactions is limited, but new techniques, such as geochemical and isotopic tracers, various geophysical and remote sensing techniques provide ever new and often surprising perspectives into the complex interactions between forest ecoystems and the water cycle. This session solicits contributions that share new insights about forest ecohydrological processes or demonstrate new ways of observing and modelling water fluxes in forest ecoystems, forest water stress, drought resistance and resilience, and the links between forest hydrological processes and the wider water, carbon and nutrient cycles. Stan Schymanski Angelika Kübert Richard Keim #Ecohydrology #Forests #Geophysics #RemoteSensing #monitoring #climatechange