PANGAEA_995221 Hydrographical time series data of Helgoland, Southern North Sea, since 2013 Fischer, Philipp; Lienkämper, Miriam; Brand, Markus; Bussmann, Ingeborg; Brix, Holger Hydrographical time series data of Helgoland, Southern North Sea, since 2013 2026-06-03 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.995221 Earth Science geoscientificInformation Alfred-Wegener-Institute Hereon in situ observations MarGate underwater experimental area MOSES Observatory observatory data Scientific diving 2013-04-04 2024-12-31 Complete 54.18330000000004 54.18330000000004 7.866699999999993 7.866699999999993 CSD Centre for Scientific Diving COSYNA Coastal Observing System for Northern and Arctic Seas ElbeXtreme DAM mareXtreme - ElbeXtreme: Monitoring and modelling of extreme events in the Elbe estuary and the German Bight MarGate MarGate MOSES Modular Observation Solutions for Earth Systems mareXtreme Research Mission of the German Marine Research Alliance (DAM): Paths to improved risk management in the area of marine extreme events and natural hazards BAH Shelf Seas Systems Ecology @ AWI (former Biologische Anstalt Helgoland) unrestricted CC-BY-4.0: Creative Commons Attribution 4.0 International English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Bremen Bremen 28359 Germany online 12 datasets application/zip Buck, Justin James Henry; Bainbridge, Scott J; Burger, Eugene F; Kraberg, Alexandra Claudia; Casari, Matthew; Casey, Kenneth S; Darroch, Louise; Del Rio, Joaquin; Metfies, Katja; Delory, Eric; Fischer, Philipp; Gardner, Thomas; Heffernan, Ryan; Jirka, Simon; Kokkinaki, Alexandra; Loebl, Martina; Buttigieg, Pier Luigi; Pearlman, Jay S; Schewe, Ingo (2019): Ocean Data Product Integration Through Innovation-The Next Level of Data Interoperability. Frontiers in Marine Science, 6, 82-92, https://doi.org/10.3389/fmars.2019.00032 Bussmann, Ingeborg; Brix, Holger; Flöser, Götz; Fischer, Philipp; Jayachandran, Saranya; Achterberg, Eric Pieter; Carstens, Kristine; Kirstein, Inga Vanessa; Sanders, Tina; Raupers, Björn; Voynova, Yoana G; Kamjunke, Norbert (2025): Winter flood significantly changes salinity and nutrient export from land to sea. Frontiers in Marine Science, 12, 1599007, https://doi.org/10.3389/fmars.2025.1599007 Fischer, Philipp (2020): Intelligent Sensor Technology: A 'Must-Have' for Next-Century Marine Science. In: Kirchner F., Straube S., Kühn D., Hoyer N. (eds) AI Technology for Underwater Robots. Intelligent Systems, Control and Automation: Science and Engineering, 96, https://doi.org/10.1007/978-3-030-30683-0_2 Fischer, Philipp; Brix, Holger; Baschek, Burkard; Kraberg, Alexandra Claudia; Brand, Markus; Cisewski, Boris; Riethmüller, Rolf; Breitbach, Gisbert; Möller, Klas Ove; Gattuso, Jean-Pierre; Alliouane, Samir; van De Poll, Willem H; Witbaard, Rob (2020): Operating Cabled Underwater Observatories in Rough Shelf-Sea Environments: A Technological Challenge. Frontiers in Marine Science, 7, https://doi.org/10.3389/fmars.2020.00551 Fischer, Philipp; Brix, Holger; Bussmann, Ingeborg; Ködel, Uta; Schwanitz, Max; Schütze, Claudia; Anselm, Norbert; Brand, Markus; Jenniges, Yvonne; Kasten, Sabine; Kraberg, Alexandra Claudia; Lienkämper, Miriam; Spotowitz, Lisa; Weber, Ute; Wiltshire, Karen Helen; Dietrich, Peter (2025): Effects of marine heat waves and cold spells on a polar shallow water ecosystem. Scientific Reports, 15(1), 20168, https://doi.org/10.1038/s41598-025-05621-w Fischer, Philipp; Dietrich, Peter; Achterberg, Eric Pieter; Anselm, Norbert; Brix, Holger; Bussmann, Ingeborg; Eickelmann, Laura; Flöser, Götz; Friedrich, Madlen; Rust, Hendrik; Schütze, Claudia; Koedel, Uta (2021): Effects of Measuring Devices and Sampling Strategies on the Interpretation of Monitoring Data for Long-Term Trend Analysis. Frontiers in Marine Science, 8, https://doi.org/10.3389/fmars.2021.770977 Fischer, Philipp; Gramelsberger, Gabriele; Hoffmann, Christoph; Hoffmann, Hans; Rheinberger, Hans-Jörg; Rickli, Hannes (2020): Natures of Data. Zürich, Diaphanes, 168, hdl:10013/epic.06e24ad7-b885-4ff6-8dd7-99c0cda25804 Fischer, Philipp; Schwanitz, Max; Loth, Reiner; Posner, Uwe; Brand, Markus; Schroeder, Friedhelm (2017): First year of practical experiences of the new Arctic AWIPEV-COSYNA cabled Underwater Observatory in Kongsfjorden, Spitsbergen. Ocean Science, 13(2), 259-272, https://doi.org/10.5194/os-13-259-2017 Tsabaris, Christos; Alexakis, Stylianos; Lienkämper, Miriam; Schwanitz, Max; Brand, Markus; Ntoumas, Manolis; Patiris, Dionisis L; Androulakaki, Effrosyni G; Fischer, Philipp (2025): The Integration of a Medium-Resolution Underwater Radioactivity System in the COSYNA Observing System at Helgoland Island, Germany. Journal of Marine Science and Engineering, 13(3), 516, https://doi.org/10.3390/jmse13030516 Weber, Ute; Attinger, Sabine; Baschek, Burkard; Boike, Julia; Borchardt, Dietrich; Brix, Holger; Brüggemann, Nicolas; Bussmann, Ingeborg; Dietrich, Peter; Fischer, Philipp; Greinert, Jens; Hajnsek, Irena; Kamjunke, Norbert; Kerschke, Dorit; Kiendler-Scharr, Astrid; Körtzinger, Arne; Kottmeier, Christoph; Merz, Bruno; Merz, Ralf; Riese, Martin; Schloter, Michael; Schmid, HaPe; Schnitzler, Jörg-Peter; Sachs, Torsten; Schütze, Claudia; Tillmann, Ralf; Vereecken, Harry; Wieser, Andreas; Teutsch, Georg (2022): MOSES: A Novel Observation System to Monitor Dynamic Events across Earth Compartments. Bulletin of the American Meteorological Society, 103(2), E339-E348, https://doi.org/10.1175/bams-d-20-0158.1 Waldmann, Christoph; Fischer, Philipp; Seitz, Steffen; Köllner, Manuela; Fischer, Jens-Georg; Bergenthal, Markus; Brix, Holger; Weinreben, Stefan; Huber, Robert (2022): A methodology to uncertainty quantification of essential ocean variables. Frontiers in Marine Science, 9, 1002153, https://doi.org/10.3389/fmars.2022.1002153

This dataset contains annual oceanographic observations collected at the Helgoland underwater observatory (54°11.594′ N, 07°52.762′ E; WGS84) from 2013 onwards. Measurements include water temperature, salinity, oxygen saturation, chlorophyll-a concentration, and turbidity. The observatory is located at a water depth of approximately 10 m (± tidal variation) and is equipped with one or more sensors for each measured parameter. Observations are recorded at an hourly temporal resolution. All data have undergone quality control using the four-step plausibility and quality assurance procedure described by Waldmann et al. (2022). The cabled observatory infrastructure and sensor configuration are described in detail on the AWI COSYNA underwater observatory webpage. For comprehensive information on instrumentation, sensor deployment, calibration procedures, and data processing, please refer to the annual metadata documents entitled metadata_heluwobs_yyyy_hydrography.pdf associated with each yearly dataset. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.995221"!

https://doi.org/10.1007/978-3-030-30683-0_2 Intelligent Sensor Technology: A 'Must-Have' for Next-Century Marine Science https://doi.org/10.1038/s41598-025-05621-w Effects of marine heat waves and cold spells on a polar shallow water ecosystem https://doi.org/10.1175/bams-d-20-0158.1 MOSES: A Novel Observation System to Monitor Dynamic Events across Earth Compartments https://doi.org/10.3389/fmars.2019.00032 Ocean Data Product Integration Through Innovation-The Next Level of Data Interoperability https://doi.org/10.3389/fmars.2020.00551 Operating Cabled Underwater Observatories in Rough Shelf-Sea Environments: A Technological Challenge https://doi.org/10.3389/fmars.2021.770977 Effects of Measuring Devices and Sampling Strategies on the Interpretation of Monitoring Data for Long-Term Trend Analysis https://doi.org/10.3389/fmars.2022.1002153 A methodology to uncertainty quantification of essential ocean variables https://doi.org/10.3389/fmars.2025.1599007 Winter flood significantly changes salinity and nutrient export from land to sea https://doi.org/10.3390/jmse13030516 The Integration of a Medium-Resolution Underwater Radioactivity System in the COSYNA Observing System at Helgoland Island, Germany https://doi.org/10.5194/os-13-259-2017 First year of practical experiences of the new Arctic AWIPEV-COSYNA cabled Underwater Observatory in Kongsfjorden, Spitsbergen https://hdl.handle.net/10013/epic.06e24ad7-b885-4ff6-8dd7-99c0cda25804 Natures of Data https://www.awi.de/en/science/biosciences/shelf-sea-system-ecology.html BAH https://www.awi.de/en/science/special-groups/scientific-diving/margate.html MarGate https://www.awi.de/en/science/special-groups/scientific-diving.html CSD https://www.hereon.de/institutes/carbon_cycles/cosyna/ COSYNA https://www.marextreme.de/en/elbextreme ElbeXtreme https://www.marextreme.de/en mareXtreme https://www.ufz.de/moses/ MOSES DIF 9.4 2026-06-03 2026-06-03