• Analysis of a low-level coastal jet off the western coast of Norway 

      Christakos, Konstantinos; Varlas, Georgios; Reuder, Joachim; Katsafados, Petros; Papadopoulos, Anastasios (Peer reviewed; Journal article, 2014)
      Offshore wind installations depend strongly on an improved knowledge of the atmospheric and ocean conditions affecting the marine atmospheric boundary layer (MABL). In particular the better understanding of atmospheric ...
    • Analysis of the vertical temperature structure in the Bergen valley, Norway, and its connection to pollution episodes 

      Wolf, Tobias; Esau, Igor; Reuder, Joachim (Peer reviewed; Journal article, 2014-09)
      The vertical temperature profile in the lowest 1000m of the atmosphere determines a number of important physical processes and meteorological phenomena such as high concentrations of anthropogenic air pollutants in urban ...
    • Assessment of wind conditions at a fjord inlet by complementary use of sonic anemometers and lidars 

      Jakobsen, Jasna Bogunovic; Cheynet, Etienne; Snæbjörnsson, Jonas Thor; Mikkelsen, Torben; Sjøholm, Mikael; Angelou, Nicolas; Hansen, Per; Mann, Jakob; Svardal, Benny; Kumer, Valerie-Marie; Reuder, Joachim (Peer reviewed; Journal article, 2015-12-02)
      Wind velocity measurement devices based on the remote optical sensing, lidars, are extensively applied in wind energy research and wind farm operation. The present paper demonstrates the relevance and potential of lidar ...
    • Automated Measurements of Whitecaps on the Ocean Surface from a Buoy-Mounted Camera 

      Paskyabi, Mostafa Bakhoday; Reuder, Joachim; Flügge, Martin (Peer reviewed; Journal article, 2016-12)
      We quantify the percentage of sea surface covered by whitecaps from images taken by a non-stationary camera mounted on a moored buoy using an Adaptive Thresholding Segmentation (ATS) method and an Iterative Between Class ...
    • The BLLAST field experiment: Boundary-Layer late afternoon and sunset turbulence 

      Lothon, Marie; Louhou, Fabienne; Pino, David; Couvreux, Fleur; Pardyjak, Erik; Reuder, Joachim; Vilà-Guerau De Arellano, Jordi; Durand, Pierre; Hartogensis, Oscar K.; Legain, Dominique; Augustin, Patrick V.; Gioli, Beniamino; Lenschow, Donald H.; Faloona, Ian C.; Yagüe, Carlos; Alexander, Daniel C.; Angevine, Wayne M.; Bargain, Erwan; Barrié, Joël; Bazile, Eric; Bezombes, Yannick; Blay-Carreras, Estel; Van De Boer, Anneke; Boichard, Jean Luc; Bourdon, Anne; Butet, Alain; Campistron, Bernard A.; De Coster, Olivier; Cuxart, Joan; Dabas, Alain M.; Darbieu, Clara; Deboudt, Karine; Delbarre, Hervé; Derrien, Solène; Flament, Pascal; Fourmentin, Marc; Garai, Anirban; Gibert, Fabien; Graf, Alexander T.; Gröbner, Julian; Guichard, Françoise; Jiménez, Mantonia Antonia; Jonassen, Marius Opsanger; Van Den Kroonenberg, Aline C.; Magliulo, Vincenzo; Martin, Sabrina; Martinez, Daniel; Mastrorillo, Laurence; Moene, Arnold F.; Molinos, Francisco Lendinez; Moulin, Emilie; Pietersen, Henk P.; Piguet, Bruno; Pique, Eric; Román-Cascón, Carlos; Rufin-Soler, Caroline; Saïd, Frédérique; Sastre-Marugán, Mariano; Seity, Yann; Steeneveld, Gert Jan; Toscano, Piero; Traullé, Olivier; Tzanos, Diane; Wacker, Stefan; Wildmann, Norman; Zaldei, Alessandro (Peer reviewed; Journal article, 2014-10-16)
      Due to the major role of the sun in heating the earth's surface, the atmospheric planetary boundary layer over land is inherently marked by a diurnal cycle. The afternoon transition, the period of the day that connects the ...
    • Characterisation of Single Wind Turbine Wakes with Static and Scanning WINTWEX-W LiDAR Data 

      Kumer, Valerie-Marie; Reuder, Joachim; Svardal, Benny; Sætre, Camilla; Eecen, Peter (Peer reviewed; Journal article, 2015)
      With further development of LiDAR technology wake measurements by use of LiDAR became of common interest in the wind energy community. To study new measurement strategies of scanning and nacelle LiDARs, in combination with ...
    • Characterization of the SUMO Turbulence Measurement System for Wind Turbine Wake Assessment 

      Båserud, Line; Flügge, Martin; Bhandari, Anak; Reuder, Joachim (Peer reviewed; Journal article, 2014)
      The remotely piloted aircraft system (RPAS) SUMO (Small Unmanned Meteorological Observer) has been equipped with a miniaturized 5-hole probe sensor system for measurement of the 3-dimensional flow vector with a temporal ...
    • Characterization of turbulence in wind turbine wakes under different stability  conditions from static Doppler LiDAR measurements 

      Kumer, Valerie-Marie; Reuder, Joachim; Eikill, Rannveig (Peer reviewed; Journal article, 2017-03-05)
      Wake characteristics are of great importance for wind park performance and turbine loads. While wind tunnel experiments provided a solid base for the basic understanding of the structure and dynamics of wind turbine wakes, ...
    • Comparison of direct covariance flux measurements from an offshore tower and a buoy 

      Flügge, Martin; Bakhoday Paskyabi, Mostafa; Reuder, Joachim; Edson, James B.; Plueddemann, Albert J. (Peer reviewed; Journal article, 2016-05)
      Direct covariance flux (DCF) measurements taken from floating platforms are contaminated by wave-induced platform motions that need to be removed before computation of the turbulent fluxes. Several correction algorithms ...
    • A Comparison of LiDAR and Radiosonde Wind Measurements 

      Kumer, Valerie-Marie; Reuder, Joachim; Furevik, Birgitte Rugaard (Peer reviewed; Journal article, 2014)
      Doppler LiDAR measurements are already well established in the wind energy research and their accuracy has been tested against met mast data up to 100 m above ground. However, the new generation of scanning LiDAR have a ...
    • Diurnal Circulation of the Bolivan Altiplano. Part I: Observations 

      Egger, Joseph; Blacutt, Luis; Ghezzi, Flavio; Heinrich, Richard; Kolb, Philip; Lämmlein, Stephan; Leeb, Martin; Mayer, Stephanie; Palenque, Eduardo; Reuder, Joachim; Schäper, Wolfgang; Schween, Jan; Torrez, Rene; Zaratti, Francesco (Journal article, 2005-04)
      In July and August 2003 a field campaign was conducted to explore the diurnal circulation of the Bolivian Altiplano. Vertical soundings by remote-controlled aircraft yielded profiles of temperature, pressure, and humidity ...
    • Downscaling an intense precipitation event in complex terrain: the importance of high grid resolution 

      Pontoppidan, Marie; Reuder, Joachim; Mayer, Stephanie; Kolstad, Erik Wilhelm (Peer reviewed; Journal article, 2017)
      Floods due to intense rainfall are a major hazard to both people and infrastructure in western Norway. Here steep orography enhances precipitation and the complex terrain channels the runoff into narrow valleys and small ...
    • Effects of altitude and aerosol on UV radiation 

      Pfeifer, M.; Koepke, P.; Reuder, Joachim (Journal article, 2006-01-10)
      Measurements of erythemally weighted UV radiation during about 600 days at different sites in Bolivia and Germany ranging from 550 to 5240 m above sea level have been used to derive the altitude effect AE under cloud-free ...
    • 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, ...
    • 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 ...
    • 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 ...