Blar i Bergen Open Research Archive på forfatter "Reuder, Joachim"

Viser treff 21-40 av 60

    • An evaluation of surface meteorology and fluxes over the Iceland and Greenland Seas in ERA5 reanalysis: The impact of sea ice distribution 

      Renfrew, Ian A.; Barrell, C.; Elvidge, A.D.; Brooke, J.K.; Duscha, Christiane; King, J.C.; Kristiansen, Jørn; Cope, T. Lachlan; Moore, George William Kent; Pickart, Robert S.; Reuder, Joachim; Sandu, I.; Sergeev, Denis; Terpstra, Annick; Våge, Kjetil; Weiss, A. (Journal article; Peer reviewed, 2021)
      The Iceland and Greenland Seas are a crucial region for the climate system, being the headwaters of the lower limb of the Atlantic Meridional Overturning Circulation. Investigating the atmosphere–ocean–ice processes in ...

    • Experimental characterization of the marine atmospheric boundary layer in the Havsul area, Norway 

      Christakos, Konstantinos; Reuder, Joachim; Furevik, Birgitte Rugaard (Peer reviewed; Journal article, 2013)
      Offshore wind energy applications depend strongly on an improved knowledge of the physical processes taking place in marine atmospheric boundary layer (MABL). In particular the better understanding of the complex interactions ...

    • Exploring the potential of the RPA system SUMO for multipurpose boundary-layer missions during the BLLAST campaign 

      Reuder, Joachim; Båserud, Line; Jonassen, Marius Opsanger; Kral, Stephan; Müller, Martin (Peer reviewed; Journal article, 2016-06-24)
      In June and July 2011 the RPAS (Remotely Piloted Aircraft System) SUMO (Small Unmanned Meteorological Observer) performed a total number of 299 scientific flights during the BLLAST (Boundary Layer Late Afternoon and Sunset ...

    • First results of turbulence measurements in a wind park with the Small Unmanned Meteorological Observer SUMO 

      Reuder, Joachim; Jonassen, Marius Opsanger (Peer reviewed; Journal article, 2012-01)
      The Small Unmanned Meteorological Observer (SUMO), equipped with a miniaturized 5-hole probe for turbulent flow measurements with 100 Hz temporal resolution, has for the first time been operated in and around a wind farm. ...

    • FLOHOF 2007: an overview of the mesoscale meteorological field campaign at Hofsjökull, Central Iceland 

      Reuder, Joachim; Ablinger, Markus; Ágústsson, Hálfdán; Brisset, Pascal; Brynjólfsson, Sveinn; Garhammer, Markus; Jóhannesson, Tómas; Jonassen, Marius O.; Kühnel, Rafael; Lämmlein, Stephan; de Lange, Tor; Lindenberg, Christian; Malardel, Sylvie; Mayer, Stephanie; Müller, Martin; Ólafsson, Haraldur; Rögnvaldsson, Ólafur; Schäper, Wolfgang; Spengler, Thomas; Zängl, Günther; Egger, Joseph (Peer reviewed; Journal article, 2012-04)
      The FLOHOF field campaign took place in the period July 21 to August 24, 2007 on and in the surroundings of Hofsjökull glacier in Central Iceland. During the campaign, 18 automatic weather stations (AWS) recording temperature, ...

    • Flow Structure around a Multicopter Drone: A Computational Fluid Dynamics Analysis for Sensor Placement Considerations 

      Ghirardelli, Mauro; Kral, Stephan Thomas; Müller, Nicolas Carlo; Hann, Richard; Cheynet, Etienne; Reuder, Joachim (Journal article; Peer reviewed, 2023)
      This study presents a computational fluid dynamics (CFD) based approach to determine the optimal positioning for an atmospheric turbulence sensor on a rotary-wing uncrewed aerial vehicle (UAV) with X8 configuration. The ...

    • Gone with the wind? Wind farm-induced wakes and regulatory gaps 

      Finserås, Eirik; Herrera Anchustegui, Ignacio; Cheynet, Etienne; Gebhardt, Cristian Guillermo; Reuder, Joachim (Journal article; Peer reviewed, 2024)
      Wind farm-induced wakes can propagate dozens of kilometres, decreasing the power production and the fatigue lifetime of wind turbines between neighbouring farms. This phenomenon termed hereinafter “wind theft”, may lead ...

    • The Iceland Greenland seas project 

      Renfrew, Ian Alasdair; Pickart, RS; Våge, Kjetil; Moore, GWK; Bracegirdle, TJ; Elvidge, AD; Jeansson, Emil; Lachlan-Cope, T; McRaven, LT; Papritz, L; Reuder, Joachim; Sodemann, Harald; Terpstra, Annick; Waterman, S; Valdimarsson, H; Weiss, A; Almansi, M; Bahr, F; Brakstad, Ailin; Barrell, C; Brooke, JK; Brooks, BJ; Brooks, IM; Brooks, ME; Bruvik, Erik Magnus; Duscha, Christiane; Fer, Ilker; Golid, Heidi M.; Hallerstig, Matilda; Hessevik, Idar; Huang, J; Houghton, L; Jonsson, S; Jonassen, Marius Opsanger; Jackson, Kristin; Kvalsund, Karsten; Kolstad, Erik Wilhelm; Konstali, Kjersti; Kristiansen, Jørn; Ladkin, R; Lin, P; MacRander, A; Mitchell, A; Olafsson, H; Pacini, A; Payne, C; Palmason, B; Perez-Hernandez, MD; Peterson, Algot Kristoffer; Petersen, GN; Pisareva, MN; Pope, JO; Seidl, Andrew; Semper, Stefanie; Sergeev, D; Skjelsvik, Silje; Søiland, Henrik; Smith, D; Spall, MA; Spengler, Thomas; Touzeau, Alexandra; Tupper, G; Weng, Yongbiao; Williams, KD; Yang, X; Zhou, Shenjie (Peer reviewed; Journal article, 2019)
      The Iceland Greenland Seas Project (IGP) is a coordinated atmosphere–ocean research program investigating climate processes in the source region of the densest waters of the Atlantic meridional overturning circulation. ...

    • Innovative strategies for observations in the Arctic atmospheric boundary layer (ISOBAR)—The Hailuoto 2017 Campaign 

      Kral, Stephan; Reuder, Joachim; Vihma, Timo; Suomi, Irene; O’Connor, Ewan; Kouznetsov, Rostislav D.; Wrenger, Burkhard; Rautenberg, Alexander; Urbancic, Gabin; Jonassen, Marius Opsanger; Båserud, Line; Maronga, Bjørn; Mayer, Stephanie; Lorenz, Torge; Holtslag, Albert A.M.; Steeneveld, Gert-Jan; Seidl, Andrew; Müller, Martin; Lindenberg, Christian; Langohr, Carsten; Voss, Hendrik; Bange, Jens; Hundhausen, Marie; Hilsheimer, Philipp; Schygulla, Markus (Peer reviewed; Journal article, 2018-07-16)
      The aim of the research project “Innovative Strategies for Observations in the Arctic Atmospheric Boundary Layer (ISOBAR)” is to substantially increase the understanding of the stable atmospheric boundary layer (SBL) through ...

    • The Innovative Strategies for Observations in the Arctic Atmospheric Boundary Layer Project (ISOBAR) — Unique fine-scale observations under stable and very stable conditions 

      Kral, Stephan; Reuder, Joachim; Vihma, Timo Pekka; Suomi, Irene; Haualand, Kristine Flacké; Urbancic, Gabin; Greene, Brian R.; Steeneveld, Gert Jan; Lorenz, Torge; Maronga, Bjørn; Jonassen, Marius Opsanger; Ajosenpää, Hada; Båserud, Line; Chilson, Phillip B.; Holtslag, Albert A. M.; Jenkins, Alastair David; Kouznetsov, Rostislav; Mayer, Stephanie; Pillar-Little, Elizabeth A.; Rautenberg, Alexander; Schwenkel, Johannes; Seidl, Andrew; Wrenger, Burkhard (Journal article; Peer reviewed, 2021)
      The Innovative Strategies for Observations in the Arctic Atmospheric Boundary Layer Program (ISOBAR) is a research project investigating stable atmospheric boundary layer (SBL) processes, whose representation still poses ...

    • Interannual variability of air temperature inversions in ice-free area of northern James Ross Island, Antarctica 

      Ambrožová, Klára; Láska, Kamil; Matějka, Michael; Reuder, Joachim (Journal article; Peer reviewed, 2022)
      Air temperature inversions are common features in Antarctica, especially in the interior where they are observed nearly year-round. Large temporal variability of air temperature inversion incidence is typical for the coastal ...

    • Intercomparison of Small Unmanned Aircraft System (sUAS) Measurements for Atmospheric Science during the LAPSE-RATE Campaign 

      Barbieri, Lindsay; Kral, Stephan; Bailey, Sean; Frazier, Amy; Jacob, Jamey; Reuder, Joachim; Brus, David; Chilson, Phillip; Crick, Christopher; Detweiler, Carrick; Doddi, Abhiram; Elston, Jack; Foroutan, Hosein; Gonzáles-Rocha, Javier; Greene, Brian; Guzmán, Marcelo I.; Houston, Adam; Islam, Ashraful; Kemppinen, Osku; Lawrence, Dale; Pillar-Little, Elizabeth; Ross, Shane; Sama, Michael; Schmale, David; Schuyler, Travis; Shankar, Ajay; Smith, Suzanne; Waugh, Sean; Dixon, Cory; Borenstein, Steve; De Boer, Gijs (Peer reviewed; Journal article, 2019-05-10)
      Small unmanned aircraft systems (sUAS) are rapidly transforming atmospheric research. With the advancement of the development and application of these systems, improving knowledge of best practices for accurate measurement ...

    • Lagrangian Measurement of Waves and Near Surface Turbulence from Acoustic Instruments 

      Bakhoday Paskyabi, Mostafa; Bryhni, Helge Thomas; Reuder, Joachim; Fer, Ilker (Peer reviewed; Journal article, 2015-12-02)
      We demonstrate high-resolution measurements of upper ocean flow and turbulence using a Lagrangian drifter. A spherical buoy as a quasi-wave following drifter mitigate the contaminations induced by wave orbital velocities ...

    • Low Level Jets over the Southern North Sea 

      Wagner, David; Steinfeld, Gerald; Witha, Björn; Wurps, Hauke; Reuder, Joachim (Peer reviewed; Journal article, 2019-12-02)
      An extensive analysis of Low Level Jets (LLJs) over the Southern North Sea is presented. The study is based on observational data from a wind LiDAR and a passive microwave radiometer, operated from May 2015 to October 2016 ...

    • Multi-scale variability of winds in the complex topography of southwestern Norway 

      Jonassen, Marius Opsanger; Ólafsson, Haraldur; Reuder, Joachim; Olseth, Jan Asle (Peer reviewed; Journal article, 2012-01-02)
      Multi-scale variability of winds in the complex terrain of southwestern Norway is investigated using up to 20yr of observations from nine automatic weather stations and reanalysis data. Significant differences between the ...

    • A new roughness length parameterization accounting for wind-wave (mis)alignment 

      Porchetta, Sara; Temel, Orkun; Munoz-Esparza, Domingo; Reuder, Joachim; Monbaliu, Jaak; Van Beeck, Jeroen; van Lipzig, Nicole (Peer reviewed; Journal article, 2019-05-20)
      Two-way feedback occurs between offshore wind and waves. However, the influence of the waves on the wind profile remains understudied, in particular the momentum transfer between the sea surface and the atmosphere. Previous ...

    • A new roughness length parameterization accounting for wind-wave (mis)alignment 

      Porchetta, Sara; Temel, Orkun; Munoz-Esparza, Domingo; Reuder, Joachim; Monbaliu, Jaak; Van Beeck, Jeroen; van Lipzig, Nicole (Peer reviewed; Journal article, 2019-05-20)
      Two-way feedback occurs between offshore wind and waves. However, the influence of the waves on the wind profile remains understudied, in particular the momentum transfer between the sea surface and the atmosphere. Previous ...

    • Offshore wind turbine wake characteristics using scanning doppler lidar 

      Krishnamurthy, Raghavendra; Reuder, Joachim; Svardal, Benny; Fernando, Harindra Joseph S.; Jakobsen, Jasna Bogunovic (Peer reviewed; Journal article, 2017-10)
      Within an offshore wind park, wind flow characteristics are quite complex and govern both the energy production and the structural wind turbine response. An experimental study focussed on assessing the spatial variability ...

    • On Stochastic Reduced-Order and LES-based Models of Offshore Wind Turbine Wakes 

      Bakhoday Paskyabi, Mostafa; Krutova, Maria; Nielsen, Finn Gunnar; Reuder, Joachim; Guernaoui, O. EL. (Journal article; Peer reviewed, 2020)
      In this paper, the primary objective is to investigate flow structures in the wake of wind turbines based on applying a truncated Proper Orthogonal Decomposition (POD) approach. This scheme decomposes the three-dimensional ...

    • A one-year comparison of new wind atlases over the North Sea 

      Cheynet, Etienne; Solbrekke, Ida Marie; Diezel, Jan Markus; Reuder, Joachim (Journal article; Peer reviewed, 2022)
      The New European Wind Atlas (NEWA) and the Norwegian hindcast archive (NORA3) database have become publicly available since the end of 2019 and mid-2021, respectively. They aim to model the long-term wind climatology with ...