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Dr. Bronwyn Cahill

Vorname Nachname
Address:
Leibniz Institute for Baltic Sea Research Warnemünde
Seestrasse 15
18119 Rostock
Germany
Room:
212
Phone:
+49 381 5197 275
E-Mail:
bronnullwyn.cahill@io-warnemuende.de

Expertise

I lead the Integrated Optical Remote Sensing Research Group. This is an interdisciplinary research group which integrates optical remote sensing and in situ optical data with novel data science and bio-optical process modelling to tackle a range of challenges and pressures faced by coastal and marginal seas. My interests are understanding how land-ocean connectivity shapes underwater lightscapes and how changing light climate impacts marine ecosystems and biogeochemical cycles.

CV

Education

2006: Ph.D. Oceanography

Graduate School of Oceanography, University of Rhode Island, RI, USA

Thesis Topic: “A Regional Comparison Between the Seasonal Cycles of the Western Irish Shelf and the Georges Bank, Gulf of Maine Ecosystems: the Impact of Physical Variability”.

1993: BSc (Honours) Ocean Science

University of Plymouth, Plymouth, England

1989: BA (Honours) French and Philosophy

Trinity College Dublin, Ireland

Professional Appointments

June 2024 to date: Senior Scientist

Leibniz-Institut für Ostseeforschung Warnemünde (IOW), Germany

Research Group Leader - Integrated Optical Remote Sensing

2021 - 2024: Associate Scientist

Leibniz-Institut für Ostseeforschung Warnemünde (IOW), Germany

Coupled biogeochemical-hydrodynamic modelling of carbon pools and fluxes in the North Sea – Baltic Sea continuum and their sensitivity to climate change and anthropogenic activities (BMBF Carbostore project).

2018 - 2021: Research Scientist/Principal Investigator

Freie Universität Berlin, Germany

Coupled bio-optical-ocean-atmosphere modelling examining the impact of water constituents on radiative heat transfer in the open ocean and shelf seas (DFG Grant CA 1347/2-1).

2016 - 2018: Research Scientist

Leibniz-Institut für Ostseeforschung Warnemünde (IOW), Germany

Coupled sediment-biogeochemical modelling investigating the impact of changing climate on coastal sediment and water nutrient dynamics in the Western Baltic Sea (BMBF SECOS II project).

2016 - 2017: Scientific Analyst

SUBMARINER Network / s.Pro GmbH, Berlin, Germany

Marine Data Policy consulting with a focus on marine data and information strategies to support EU Directives, e.g. “Study on data and knowledge gaps for Maritime Spatial Planning in European Sea Basins” (s.Pro on behalf of DG MARE).

2014: Research Associate

Space & Atmospheric Physics, Imperial College London, UK

Ocean-atmosphere modelling with a focus on quantifying the radiative impact of dust aerosol over the Arabian Peninsula and Red Sea and its implications for local, regional and global climate (in association with KAUST).

2010 - 2016: Scientific Analyst

Informus GmbH, Berlin, Germany

Scientific consulting with a focus on marine and earth observation data. Studies include:

“Environmental Assessment of New Uses of Marine Resources in the Baltic Sea”, on behalf of the Bundesministerium für Umwelt, Naturschutz und Reaktorsicherheit (BMU) (German Federal Environment Ministry), in the frame of the EU Baltic Sea Region Programme, SUBMARINER project (2010 - 2013).

“Benefits of Oceanography Measurements to National Meteorological Services” on behalf of EUMETSAT. Technical manager and senior analyst tasked with investigating the current and anticipated future uptake of space-based oceanographic measurements by national meteorological services (2010 - 2011).

2006 - 2012: Research Associate

Marine and Coastal Sciences, Rutgers University, NJ, USA

Biophysical ocean modelling and marine ecosystem dynamics research, with a focus on the impact of climate change and land use on coastal marine environments. Projects include:

“Impacts of Changing Climate and Land Use on Carbon Cycling and Budgets of the U.S. Eastern Coastal Ocean Margin: Observations, Analysis, and Modeling (USECOS)”, (NASA Ocean Biogeochemistry program, 2008 – 2012).

“Experimental System for Predicting Shelf and Slope Optics (ESPreSSO)”, (Office of Naval Research, Multidisciplinary University Research Initiative, 2007 – 2010).

“Lagrangian Transport and Transformation Experiment (LaTTE), biophysical modeling and synthesis”, (National Science Foundation program, 2006 - 2008).

1993 – 2000: Manager (1996 - 2000) & Scientific Officer (1993 - 1996)

Irish Marine Data Centre, Marine Institute, Ireland

Multidisciplinary data management, electronic data publishing, international liaison, and national marine data research strategy and development (e.g. led the development of an integrated coastal observing system for Bantry Bay and Fastnet, Southwest Irel

Projects

Publications

2026

  • Börgel, F., I. Ruvalcaba Baroni, L. Barghorn, L. Borchert, B. Cahill, C. Dutheil, L. Esters, M. Falarz, H. L. Filipsson, M. Gröger, J. Hänninen, M. Hieronymus, E. Jakobson, M. P. Karami, K. Kuliński, T. Liblik, H. E. M. Meier, G. Messori, L. Naumov, T. Neumann, P. Post, G. Rehder, A. Rutgersson and G. S. Voelker (2026). Large-scale atmospheric circulation and its impact on the Baltic Sea region: controls, predictability and consequences. Earth Syst. Dynam. 17: 415–450, doi: 10.5194/esd-17-415-2026

2025

  • Anschütz, A.-A., J. M. Lencina-Avila, G. Rehder, B. Cahill, T. Neumann and H. Radtke (2025). Corrigendum: Direct effects of ocean alkalinity enhancement in the Baltic Sea–results from in-silico experiments. Front. Clim. 7, doi: 10.3389/fclim.2025.1625156
  • Anschütz, A.-A., J. M. Lencina-Avila, G. Rehder, B. Cahill, T. Neumann and H. Radtke (2025). Direct effects of ocean alkalinity enhancement in the Baltic Sea–results from in-silico experiments. Frontiers in Climate 7, doi: 10.3389/fclim.2025.1450468
  • Kahru, M., B. Cahill, R. Elmgren and G. Rehder (2025). What initiates cyanobacterial blooms in the Baltic Sea? Harmful Algae 148: 102924, doi: 10.1016/j.hal.2025.102924
  • Kuss, J., U. Gräwe, B. Cahill, V. Mohrholz, M. Naumann, R. Mars, S. Krüger, D. E. Schulz-Bull and J. J. Waniek (2025). Highly variable bottom water oxygen concentration in the shallow Arkona Basin (Baltic Sea). J. Mar. Syst. 252: 104134, doi: 10.1016/j.jmarsys.2025.104134
  • Vortmeyer-Kley, R., M. Berthold, B. Cahill, U. Gräwe and U. Feudel (2025). Unraveling the Influence of Short-Lived, Three-Dimensional, Eddy-Like, Coherent, Oceanic Structures on Phytoplankton Dynamics and Nutrient Transport. J. Geophys. Res. Biogeosciences 130: e2025JG009107, doi: 10.1029/2025JG009107
  • Voss, M., P. Holtermann, S. Ahmerkamp, D. L. Arévalo Martínez, B. Cahill, M. Chouksey, J. W. Dippner, J. Dutz, P. Feldens, J. Geersen, K. Gentsch, M. Gogina, D. Herlemann, J. Henkel, M. Kanwischer, B. Krebs, A. Kremp, A. Malissery, R. Mars, J. Müller, S. Neubert, H. Osterholz, H. Radtke, G. Rehder, K. Romoth, M. Sass, I. Sassenhagen, O. Schmale, M. v. Thenen, M. v. Weber and O. Zielinski (2025). Coastal zones of the Baltic Sea in the Anthropocene: Current state and the impact of climate change. Estuar. Coast. Shelf Sci. 326: 109504, doi: 10.1016/j.ecss.2025.109504

2024

  • Cahill, B., E. Chrysagi, R. Vortmeyer-Kley and U. Gräwe (2024). Deconstructing co-occurring marine heatwave and phytoplankton bloom events in the Arkona Sea in 2018. Front. Mar. Sci. 11: 1323271, doi: 10.3389/fmars.2024.1323271
  • Cotovicz Jr., L. C., B. Cahill, B. Sabbaghzadeh, J. M. Lencina-Avila and G. Rehder (2024). Increase in marginal sea alkalinity may impact air–sea carbon dioxide exchange and buffer acidification. Limnol. Oceanogr. 69: 2332-2347, doi: 10.1002/lno.12672

2023

  • Cahill, B. E., P. Kowalczuk, L. Kritten, U. Gräwe, J. Wilkin and J. Fischer (2023). Estimating the seasonal impact of optically significant water constituents on surface heating rates in the western Baltic Sea. Biogeosciences 20: 2743-2768, doi: 10.5194/bg-20-2743-2023

2022

  • Cahill, B. E., P. Kowalczuk, L. Kritten, U. Gräwe, J. Wilkin and J. Fischer (2022). Estimating the seasonal impact of optically significant water constituents on surface heating rates in the Western Baltic Sea. EGUsphere Preprint 2022: 1-37, doi: 10.5194/egusphere-2022-1121
  • Neumann, T., H. Radtke, B. Cahill, M. Schmidt and G. Rehder (2022). Non-Redfieldian carbon model for the Baltic Sea (ERGOM version 1.2) - implementation and budget estimates. Geosci. Model Dev. 15: 8473-8540, doi: 10.5194/gmd-15-8473-2022

2019

  • Radtke, H., M. Lipka, D. Bunke, C. Morys, J. Woelfel, B. Cahill, M. E. Böttcher, S. Forster, T. Leipe, G. Rehder and T. Neumann (2019). Ecological ReGional Ocean Model with vertically resolved sediments (ERGOM SED 1.0): Coupling benthic and pelagic biogeochemistry of the south-western Baltic Sea. Geosci. Model Dev. 12: 275-320, doi: 10.5194/gmd-12-275-2019

2018

  • Radtke, H., M. Lipka, D. Bunke, C. Morys, B. Cahill, M. E. Böttcher, S. Forster, T. Leipe and T. Neumann (2018). Ecological ReGional Ocean Model with vertically resolved sediments (ERGOM SED 1.0): Coupling benthic and pelagic biogeochemistry of the south-western Baltic Sea. Geosci. Model Dev. Discuss. 109: online, doi: 10.5194/gmd-2018-109

2017

  • Cahill, B., R. Toumi, G. Stenchikov, S. Osipov and H. Brindley (2017). Evaluation of thermal and dynamic impacts of summer dust aerosols on the Red Sea. J. Geophys. Res. Oceans 122: 1325-1346, doi: 10.1002/2016JC011911

2016

  • Cahill, B., J. Wilkin, K. Fennel, D. Vandemark and M. A. M. Friedrichs (2016). Interannual and seasonal variabilities in air-sea CO2 fluxes along the U.S. eastern continental shelf and their sensitivity to increasing air temperatures and variable winds. J. Geophys. Res. Biogeosciences 121, 2: 295-311, doi: 10.1002/2015JG002939

2013

2012

  • Xu, Y., B. Cahill, J. Wilkin and O. Schofield (2013). Role of wind in regulating phytoplankton blooms on the Mid-Atlantic Bight. Cont. Shelf Res. 63: S26-S35, doi: 10.1016/j.csr.2012.09.011

2011

  • Hofmann, E. E., B. Cahill, K. Fennel, M. A. M. Friedrichs, K. Hyde, C. Lee, A. Mannino, R. G. Najjar, apos, J. E. Reilly, J. Wilkin and J. Xue (2011). Modeling the Dynamics of Continental Shelf Carbon. Annu. Rev. Mar. Sci. 3, Volume 3, 2011: 93-122, doi: 10.1146/annurev-marine-120709-142740
  • Wilkin, J. L., W. G. Zhang, B. E. Cahill and R. C. Chant (2011). Integrating Coastal Models and Observations for Studies of Ocean Dynamics, Observing Systems and Forecasting. In: Operational Oceanography in the 21st Century. Ed. by A. Schiller and G. B. Brassington. Dordrecht: Springer Netherlands: 487-512, 978-94-007-0332-2, doi: 10.1007/978-94-007-0332-2_19

2008

  • Cahill, B., O. Schofield, R. Chant, J. Wilkin, E. Hunter, S. Glenn and P. Bissett (2008). Dynamics of turbid buoyant plumes and the feedbacks on near-shore biogeochemistry and physics. Geophys. Res. Lett. 35, 10, doi: 10.1029/2008GL033595

2000

  • Raine, R., S. O'Boyle, T. O'Higgins, M. White, J. Patching, B. Cahill and T. McMahon (2001). A satellite and field portrait of a Karenia mikimotoi bloom off the south coast of Ireland, August 1998. Hydrobiologia 465, 1: 187-193, doi: 10.1023/A:1014524420705

My Research Group

Integrated Optical Remote Sensing

(Website Under Construction)

Expertise

CV

Projects

Publications

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