Browsing Faculty of Mathematics and Natural Sciences by Title

Now showing items 2704-2723 of 9922

    • The European Climate Research Alliance (ECRA): Collaboration from bottom-up 

      Hoke, Winfried; Swierczynski, Tina; Braesicke, Peter; Lochte, Karin; Shaffrey, Len; Drews, Martin; Gregow, Hilppa; Ludwig, Ralf; Nilsen, Jan Even Øie; Palazzi, Elisa; Sannino, Gianmaria; Smedsrud, Lars H. (Peer reviewed; Journal article, 2019-01-17)
      The European Climate Research Alliance (ECRA) is an association of leading European research institutions in the field of climate research (http://www.ecra-climate.eu/, last access: 6 December 2018). ECRA is a bottom-up ...

    • The European Forest Plant Species List (EuForPlant): Concept and applications 

      Heinken, Thilo; Diekmann, Martin; Liira, Jaan; Orczewska, Anna; Schmidt, Marcus; Brunet, Jörg; Chytrý, Milan; Chabrerie, Olivier; Decocq, Guillaume; De Frenne, Pieter; Dřevojan, Pavel; Dzwonko, Zbigniew; Ewald, Jörg; Feilberg, Jon; Graae, Bente Jessen; Grytnes, John Arvid; Hermy, Martin; Kriebitzsch, Wolf-Ulrich; Laiviņš, Māris; Lenoir, Jonathan; Lindmo, Sigrid; Marage, Damien; Marozas, Vitas; Niemeyer, Thomas; Paal, Jaanus; Pyšek, Petr; Roosaluste, Elle; Sádlo, Jiří; Schaminée, Joop H.J.; Tyler, Torbjörn; Verheyen, Kris; Wulf, Monika; Vanneste, Thomas (Journal article; Peer reviewed, 2022)
      Question When evaluating forests in terms of their biodiversity, distinctiveness and naturalness, the affinity of the constituent species to forests is a crucial parameter. Here we ask to what extent are vascular plant ...

    • The European gravity field and steady-state ocean circulation explorer satellite mission: its impact on geophysics 

      Johannessen, Johnny A.; Balmino, G.; Le Provost, Christian; Rummel, R.; Sabadini, R.; Sünkel, H.; Tscherning, C. C.; Visser, P.; Woodworth, Philip; Hughes, C. W.; Le Grand, Pascal; Sneeuw, N.; Perosanz, F.; Aguirre-Martinez, M.; Rebhan, Helge; Drinkwater, M. R. (Journal article, 2003-07)
      Current knowledge of the Earth’s gravity field and its geoid, as derived from various observing techniques and sources, is incomplete. Within a reasonable time, substantial improvement will come by exploiting new approaches ...

    • European summer temperatures since Roman times 

      Luterbacher, Jürg; Werner, Johannes; Smerdon, Jason E.; Fernández-Donado, Laura; González-Rouco, Fidel J.; Barriopedro, David E.; Ljungqvist, Fredrik Carpentier; Büntgen, Ulf; Zorita, Eduardo Valera; Wagner, Sebastian; Esper, Jan; McCarroll, Danny; Toreti, Andrea; Frank, David C.; Jungclaus, Jojann H.; Barriendos, Mariano; Bertolin, Chiara; Bothe, Oliver; Brázdil, Rudolf; Camuffo, Dario; Dobrovolný, Petr; Gagen, Mary H.; Garcia-Bustamante, Elena; Ge, Q.; Guiot, Joël; Gómez-Navarro, Juan José; Hao, Z.; Hegerl, Gabi C.; Holmgren, Karin; Klimenko, Vladimir V.; Martin-Chivelet, Javier; Pfister, Christian; Roberts, Neil; Schindler, Anne; Schurer, Andrew P.; Solomina, Olga N.; Von Gunten, Lucien; Wahl, Eugene R.; Wanner, Heinz; Wetter, Oliver; Xoplaki, Elena; Yuan, Naiming; Zanchettin, Davide; Zhang, Huan; Zerefos, Christos S. (Journal article; Peer reviewed, 2016)
      The spatial context is critical when assessing present-day climate anomalies, attributing them to potential forcings and making statements regarding their frequency and severity in a long-term perspective. Recent international ...

    • European warm-season temperature and hydroclimate since 850 CE 

      Ljungqvist, Fredrik Charpentier; Seim, Andrea; Krusic, Paul J.; Gonzalez-Rouco, Jesus Fidel; Werner, Johannes; Cook, Edward R.; Zorita, Eduardo; Luterbacher, Jürg; Xoplaki, Elena; Destouni, Georgia; Garcia-Bustamante, Elena; Aguilar, Camilo Andres Melo; Seftigen, Kristina; Wang, Jianglin; Gagen, Mary H.; Esper, Jan; Solomina, Olga; Fleitmann, Dominik; Büntgen, Ulf (Journal article; Peer reviewed, 2019)
      The long-term relationship between temperature and hydroclimate has remained uncertain due to the short length of instrumental measurements and inconsistent results from climate model simulations. This lack of understanding ...

    • Evaluating balanced section restoration with thermochronology data: A case study from the Central Pyrenees 

      Erdős, Zoltán; van der Beek, Peter; Huismans, Ritske S. (Peer reviewed; Journal article, 2014-05-06)
      We present a new method that can be used to quantitatively evaluate the consistency between balanced section restorations and thermochronological data sets from orogenic belts. We have applied our method to a crustal-scale ...

    • Evaluating effort regulation in mixed fisheries: a Monte Carlo approach 

      Liu, Xiaozi; Heino, Mikko Petteri (Peer reviewed; Journal article, 2019)
      This paper evaluates whether effort regulation could achieve the goal of protecting low-abundance species in mixed fisheries. We construct a two-species bio-economic model and compare the stock abundance ratio in the end ...

    • Evaluating Impacts of Recent Arctic Sea Ice Loss on the Northern Hemisphere Winter Climate Change 

      Ogawa, Fumiaki; Keenlyside, Noel; Gao, Yongqi; Koenigk, Torben; Yang, Shuting; Suo, Lingling; Wang, Tao; Gastineau, Guillaume; Nakamura, Tetsu; Cheung, Ho Nam; Omrani, Nour-Eddine; Ukita, Jinro; Semenov, Vladimir (Journal article; Peer reviewed, 2018)
      Wide disagreement among individual modeling studies has contributed to a debate on the role of recent sea ice loss in the Arctic amplification of global warming and the Siberian wintertime cooling trend. We perform coordinated ...

    • Evaluating primary (cry1Ab) and secondary effects (deoxynivalenol) of GM maize when fed to zebrafish (Danio rerio). Investigating growth, intestinal mRNA and white blood cell differentiation 

      Jørgensen, Susanne (Master thesis, 2012-06-01)
      Several of the plants which are currently being used in fish feed in Norway today, are being genetically modified (GM) around the world. The use of GM plants is increasing worldwide, and whether these are safe to use in ...

    • Evaluating tertiary water based EOR methods on the Veslefrikk field, with emphasis on analyzing sodium silicate injection by numerical simulation 

      Hansen, Beate (Master thesis, 2009-04-29)
      The applicability of some water based EOR methods was evaluated for the Veslefrikk field. Diversion of injection water, by injection of sodium silicate, was regarded as having an EOR potential. This was analyzed by numerical ...

    • Evaluating the biological pump efficiency of the Last Glacial Maximum ocean using δ13C 

      Morée, Anne; Schwinger, Jörg; Ninnemann, Ulysses S; Jeltsch-Thommes, Aurich; Bethke, Ingo; Heinze, Christoph (Journal article; Peer reviewed, 2021)
      Although both physical and biological marine changes are required to explain the 100 ppm lower atmospheric pCO2 of the Last Glacial Maximum (LGM, ∼21 ka) as compared to preindustrial (PI) times, their exact contributions ...

    • Evaluating the large-scale hydrological cycle response within the Pliocene Model Intercomparison Project Phase 2 (PlioMIP2) ensemble 

      Han, Zixuan; Zhang, Qiong; Li, Qiang; Feng, Ran; Haywood, Alan M.; Tindall, Julia C.; Hunter, Stephen J.; Otto-Bliesner, Bette L.; Brady, Esther C.; Rosenbloom, Nan; Zhang, Zhongshi; Li, Xiangyu; Guo, Chuncheng; Nisancioglu, Kerim Hestnes; Stepanek, Christian; Lohmann, Gerrit; Sohl, Linda E.; Chandler, Mark A.; Tan, Ning; Ramstein, Gilles; Baatsen, Michiel L. J.; Von Der Heydt, Anna S.; Chandan, Deepak; Peltier, W. Richard; Williams, Charles J. R.; Lunt, Daniel J.; Cheng, Jianbo; Wen, Qin; Burls, Natalie J. (Journal article; Peer reviewed, 2021)
      The mid-Pliocene (∼3 Ma) is one of the most recent warm periods with high CO2 concentrations in the atmosphere and resulting high temperatures, and it is often cited as an analog for near-term future climate change. Here, ...

    • Evaluating the leeway coefficient of ocean drifters using operational marine environmental prediction systems 

      Sutherland, Graig; Soontiens, Nancy; Davidson, Fraser; Smith, Gregory C.; Bernier, Natacha; Blanken, Hauke; Schillinger, Douglas; Marcotte, Guillaume; Röhrs, Johannes; Dagestad, Knut-Frode; Christensen, Kai Håkon; Breivik, Øyvind (Journal article; Peer reviewed, 2020)
      The water following characteristics of six different drifter types are investigated using two different operational marine environmental prediction systems: one produced by Environment and Climate Change Canada (ECCC) and ...

    • Evaluating the price of tiny kinetic mixing 

      Gherghetta, Tony; Kersten, Jörn; Olive, Keith A.; Pospelov, Maxim (Peer reviewed; Journal article, 2019)
      We consider both “bottom-up” and “top-down” approaches to the origin of gauge kinetic mixing. We focus on the possibilities for obtaining kinetic mixings ϵ which are consistent with experimental constraints and are much ...

    • Evaluating the quality of Controlled Meteorological Balloons in Arctic air mass transformation over the Nordic Seas 

      Løklingholm, Sander (Master thesis, 2023-06-01)
      In situ measurements from Controlled Meteorological (CMET) balloons are used to study Arctic air mass transformation in marine cold air outbreaks (mCAOs) over the Nordic Seas. 6 CMET balloons were launched from Ny- ̊Alesund ...

    • Evaluating the Representation of Community Colleges in Biology Education Research Publications following a Call to Action 

      Creech, Catherine; Just, Jan; Hammarlund, Sarah; Rolle, Cleo E.; Gonsar, Ngawang Y.; Olson, Alyssa; Campbell, Nikaila; Mennes, Karissa; Adoradio, Cecilia; Soneral, Paula; Ewell, Sharday; Mazur, Clay; Lane, A Kelly; Hewlett, James; Cotner, Sehoya Harris (Journal article; Peer reviewed, 2022)
      Interest in biology education research (BER) has been growing over the last two decades, yet few BER publications focus on community colleges, which serve a large percentage of the undergraduate student population and a ...

    • Evaluating the suitability of close-kin mark-recapture as a demographic modelling tool for a critically endangered elasmobranch population 

      Delaval, Aurelien Nicolas; Bendall, Victoria; Hetherington, Stuart; Skaug, Hans Julius; Frost, Michelle; Jones, Catherine; Noble, Leslie Robert (Journal article; Peer reviewed, 2022)
      Estimating the demographic parameters of contemporary populations is essential to the success of elasmobranch conservation programmes, and to understanding their recent evolutionary history. For benthic elasmobranchs such ...

    • Evaluating the suitability of RAS culture environment for rainbow trout and Atlantic salmon: A ten-year progression of applied research and technological advancements to optimize water quality and fish performance 

      Davidson, John (Doctoral thesis, 2020)
      Over the last several decades, recirculating aquaculture systems (RAS) have become a viable technology for the production of high-value food-fish. In Norway, for example, many Atlantic salmon smolt farms are now using RAS, ...

    • Evaluating the utility of a Novel Harvest Control Rule in the management of long-lived sporadically recruiting species through Management Strategy Evaluation 

      Kelly, Cian (Master thesis, 2019-08-16)
      Fish species that exhibit sporadic recruitment, late maturity and that are long-lived, can be difficult to manage. The issue arises from the high variability in stock dynamics. Where there are significant interannual ...

    • Evaluating two numerical advection schemes in HYCOM for eddy-resolving modelling of the Agulhas Current 

      Backeberg, Bjørn C.; Bertino, Laurent; Johannessen, Johnny A. (Ocean Science, Journal article, 2009-06-02)
      A 4th order advection scheme is applied in a nested eddy-resolving Hybrid Coordinate Ocean Model (HYCOM) of the greater Agulhas Current system for the purpose of testing advanced numerics as a means for improving the model ...