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Jan Erik Zeriadtke, Joël Martin and Viola Wartemann
The performance of hybrid rocket engines is significantly influenced by the fuel geometry. Burnback simulations, to determine the fuel surface and fluid volume, are therefore an important tool for preliminary design. This work presents a method for the s...
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Bárbara Angélio Quirino, Sidinei Magela Thomaz, Erik Jeppesen, Martin Søndergaard, Mário Sérgio Dainez-Filho and Rosemara Fugi
Aquatic macrophytes are generally recognized to influence fish?prey interactions. We assessed how fish consume particular foods, and how their foraging efficiency, trophic niche breadth, and niche overlap respond to gradients of macrophyte density and di...
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Nicolas Vidal, Susanne L. Amsinck, Vítor Gonçalves, José M. Neto Azevedo, Liselotte S. Johansson, Kirsten S. Christoffersen, Torben L. Lauridsen, Martin Søndergaard, Rikke Bjerring, Frank Landkildehus, Klaus P. Brodersen, Mariana Meerhoff and Erik Jeppesen
Disentangling the effects of climate change on nature is one of the main challenges facing ecologists nowadays. Warmer climates forces strong effects on lake biota for fish, leading to a reduction in size, changes in diet, more frequent reproduction, and...
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Martin Breunig, Patrick Erik Bradley, Markus Jahn, Paul Kuper, Nima Mazroob, Norbert Rösch, Mulhim Al-Doori, Emmanuel Stefanakis and Mojgan Jadidi
Without geospatial data management, today?s challenges in big data applications such as earth observation, geographic information system/building information modeling (GIS/BIM) integration, and 3D/4D city planning cannot be solved. Furthermore, geospatia...
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Larissa Lacher, Martin Steinbacher, Nicolas Bukowiecki, Erik Herrmann, Assaf Zipori and Zamin A. Kanji
Ice nucleation is the source of primary ice crystals in mixed-phase clouds. Only a small fraction of aerosols called ice nucleating particles (INPs) catalyze ice formation, with their nature and origin remaining unclear. In this study, we investigate pot...
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Erik Jeppesen, Martin Søndergaard and Zhengwen Liu
Lakes all around the globe are under severe pressure due to an increasing anthropogenic impact from a growing population in a more developed world. Accordingly, today, many lakes are highly eutrophic and suffer from severe blooms of often toxic cyanobact...
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Martin Søndergaard, Torben L. Lauridsen, Liselotte S. Johansson and Erik Jeppesen
Biomanipulation by fish removal has been used in many shallow lakes as a method to improve lake water quality. Here, we present and analyse 30 years of chemical and biological data from the shallow and 16 ha large Lake Væng, Denmark, which has been bioma...
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Endre Hofstad Hansen, Liviu Theodor Ene, Terje Gobakken, Hans Ole Ørka, Ole Martin Bollandsås and Erik Næsset
Forest attributes such as tree heights, diameter distribution, volumes, and biomass can be modeled utilizing the relationship between remotely sensed metrics as predictor variables, and measurements of forest attributes on the ground. The quality of the ...
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Jonas Rolighed, Erik Jeppesen, Martin Søndergaard, Rikke Bjerring, Jan H. Janse, Wolf M. Mooij, Dennis Trolle
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Complex lake ecosystem models can assist lake managers in developing management plans counteracting the eutrophication symptoms that are expected to be a result of climate change. We applied the ecological model PCLake based on 22 years of data from shal...
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María Florencia Gutierrez, Melina Devercelli, Sandra Brucet, Torben L. Lauridsen, Martin Søndergaard, Erik Jeppesen
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Nutrient fluctuations and climate warming can synergistically affect trophic dynamics in lakes, resulting in enhanced symptoms of eutrophication, thereby potentially counteracting restoration measures. We performed a long-term study (23 years) of zooplan...
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