Dr. Robert Ladwig

Dr. Robert Ladwig

Aquatic Ecosystem Modeling, Physical Limnology and Theoretical Ecology

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A list of all the posts and pages found on the site. For you robots out there is an XML version available for digesting as well.

Pages

Posts

portfolio

Impact of Climate Change on Lakes

Published:

Lakes are vulnerable to changes in meteorological boundary conditions. Especially climate change will affect the thermal stratification of lakes and make short-duration heavy rainfall events more frequent and intense.

Physical Limnology of Urban Lakes

Published:

Urban lakes are influenced by multiple external factors shaping their physical characteristics and ecosystems.

Sediment Biogeochemistry

Published:

Diagenetic reactions in the lake sediments determine retention and internal fluxes in the lake ecosystem.

publications

Sediment core data reconstruct the management history and usage of a heavily modified urban lake in Berlin, Germany

Published in Environ Sci Pollut Res., 2017

This paper is about the analysis of the sediment composition of an urban lake using XRF scanning and post-processing by multivariate statistical methods (PCA, k-means, SOM).

Recommended citation: Ladwig R., Heinrich L., Singer G., Hupfer M. (2017): "Sediment core data reconstruct the management history and usage of a heavily modified urban lake in Berlin, Germany" Environ Sci Pollut Res. 24: 25166-25178, doi 10.1007/s11356-017-0191-z https://link.springer.com/article/10.1007%2Fs11356-017-0191-z

Climate Change Demands Adaptive Management of Urban Lakes: Model- Based Assessment of Management Scenarios for Lake Tegel (Berlin, Germany)

Published in Water, 2018

This paper is about the calibration of a vertical 1D hydrodynamic-water quality model (GLM-AED2) to Lake Tegel. The model was used to investigate the impact of climate change under alternative management scenarios on the lake ecosystem.

Recommended citation: Ladwig R., Furusato E., Kirillin G., Hinkelmann R., Hupfer M. (2018): "Climate Change Demands Adaptive Management of Urban Lakes: Model- Based Assessment of Management Scenarios for Lake Tegel (Berlin, Germany)" Water 10, 168, doi 10.3390/w10020186 https://www.mdpi.com/2073-4441/10/2/186

Chironomid larvae enhance phosphorus burial in lake sediments: Insights from long-term and short-term experiments

Published in Science of The Total Environment, 2019

This paper investigates the bioturbation effects by chironomid larvae on phosphorus retention.

Recommended citation: Hupfer M., Jordan S., Herzog C., Ebeling C., Ladwig R., Rothe M., Lewandowski J. (2019): "Chironomid larvae enhance phosphorus burial in lake sediments: Insights from long-term and short-term experiments" Science of The Total Environment, ISSN 0048-9697, https://doi.org/10.1016/j.scitotenv.2019.01.274. https://www.sciencedirect.com/science/article/pii/S0048969719303195

Adapting the water management to mitigate the impact of multiple stressors on an urban lake: Case study Lake Tegel (Germany)

Published in TU Berlin, 2019

This doctoral thesis explores different management options for Lake Tegel by coming field sampling, statistical analysis and numerical modeling.

Recommended citation: Ladwig R. (2019): "Adapting the water management to mitigate the impact of multiple stressors on an urban lake: Case study Lake Tegel (Germany)" TU Berlin, http://dx.doi.org/10.14279/depositonce-8289. http://dx.doi.org/10.14279/depositonce-8289

Future projections of water level and thermal regime changes of a multipurpose subtropical reservoir (Sao Paulo, Brazil)

Published in Science of The Total Environment, 2021

Using data generated by a regionalized climate model (RCM) as input to a simple hydrological model and a one-dimensional vertical hydrodynamic model, we forecast potential changes in the Itupararanga reservoir, São Paulo, Brazil, in an exemplary time period (2028–2030) in the next decade.

Recommended citation: Barbosa, C.C., Calijuri, M.d.C., Alves dos Santos, A.C., Ladwig, R., Amorim de Oliveira, L.F., and Buarque, A.C.S.: Future projections of water level and thermal regime changes of a multipurpose subtropical reservoir (Sao Paulo, Brazil), Science of the Total Environment, https://doi.org/10.1016/j.scitotenv.2020.144741, 2021 https://doi.org/10.1016/j.scitotenv.2020.144741

Phenological shifts in lake stratification under climate change

Published in Nature Communications, 2021

We used a lake-climate model ensemble and long-term observational data, to investigate changes in lake stratification phenology across the Northern Hemisphere from 1901 to 2099.

Recommended citation: Woolway, R.I., Sharma, S., Weyhenmeyer, G.A. et al. Phenological shifts in lake stratification under climate change. Nat Commun 12, 2318 (2021). https://doi.org/10.1038/s41467-021-22657-4 https://doi.org/10.1038/s41467-021-22657-4

Virtual Growing Pains: Initial Lessons Learned from Organizing Virtual Workshops, Summits, Conferences, and Networking Events during a Global Pandemic

Published in Limnology and Oceanography Bulletin, 2021

To concentrate and synthesize the transition to conducting science virtually, we showcase how six scientific societies and communities planned, organized, and conducted virtual meetings in 2020.

Recommended citation: Michael F. Meyer, Robert Ladwig, Hilary A. Dugan, Alyssa Anderson, Abdou R. Bah, Bertram Boehrer, Lisa Borre, Rosaura J. Chapina, Chris Doyle, Elizbaeth J. Favot, Giovanna Flaim, Philip Forsberg, Paul C. Hanson, Bas W. Ibelings, Peter Isles, Fang-Pang Lin, Dendy Lofton, Tadhg N. Moore, Sara Peel, Jody A. Peters, Don Pierson, Lisette N. de Senerpont Domis, Jeffrey A. Schloss, Muhammed Shikhani, Amy P. Smagula, Jason D. Stockwell, Perry Thomas, R. Quinn Thomas, Todd Tietjen, Kathleen C. Weathers (2021) Virtual growing pains: Initial lessons learned from organizing virtual workshops, summits, conferences, and networking events during a global pandemic. Limnology and Oceanography Bulletin. https://doi.org/10.1002/lob.10431 https://doi.org/10.1002/lob.10431

Lake thermal structure drives interannual variability in summer anoxia dynamics in a eutrophic lake over 37 years

Published in Hydrology and Earth System Sciences, 2021

In this study, we used a vertical one-dimensional hydrodynamic-ecological model (GLM-AED2) coupled with a calibrated hydrological catchment model (PIHM-Lake) to simulate the thermal and water quality dynamics of the eutrophic Lake Mendota (USA) over a 37-year period to get a better understanding of inter-annual drivers of summer anoxia.

Recommended citation: Ladwig, R., Hanson, P. C., Dugan, H. A., Carey, C. C., Zhang, Y., Shu, L., Duffy, C. J., and Cobourn, K. M.: Lake thermal structure drives interannual variability in summer anoxia dynamics in a eutrophic lake over 37 years, Hydrol. Earth Syst. Sci., 25, 1009–1032, https://doi.org/10.5194/hess-25-1009-2021, 2021 https://doi.org/10.5194/hess-25-1009-2021

LakeEnsemblR: An R package that facilitates ensemble modelling of lakes

Published in Environmental Modelling & Software, 2021

We present an R package, LakeEnsemblR, that facilitates running ensembles of five different one-dimensional hydrodynamic lake models (FLake, GLM, GOTM, Simstrat, MyLake).

Recommended citation: Moore T., Mesman J., Ladwig R., Feldbauer J., Olsson F., Pilla R., Shatwell T., Venkiteswaran J., Delany A., Dugan H., Rose K., Read J. (2021): "LakeEnsemblR: An R package that facilitates ensemble modelling of lakes" Environmental Modelling & Software, doi https://doi.org/10.1016/j.envsoft.2021.105101 https://doi.org/10.1016/j.envsoft.2021.105101

talks

teaching

Teaching experience 1

Undergraduate course, University 1, Department, 2014

This is a description of a teaching experience. You can use markdown like any other post.

Teaching experience 2

Workshop, University 1, Department, 2015

This is a description of a teaching experience. You can use markdown like any other post.