• Assessment of Atmospheric Reanalyses With Independent Observations in the Weddell Sea, the Antarctic 

      Jonassen, Marius Opsanger; Valisuo, Ilona; Vihma, Timo; Uotila, Petteri; Makshtas, Alexander, P.; Launiainen, Jouko (Peer reviewed; Journal article, 2019)
      Surface layer and upper‐air in situ observations from two research vessel cruises and an ice station in the Weddell Sea from 1992 and 1996 are used to validate four current atmospheric reanalysis products: ERA‐Interim, ...
    • 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 ...
    • 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. ...
    • 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 ...
    • 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 ...
    • Potential and limitations in estimating sensible-heat-flux profiles from consecutive temperature profiles using remotely-piloted aircraft systems 

      Båserud, Line; Reuder, Joachim; Jonassen, Marius Opsanger; Bonin, Timothy; Chilson, Phillip B.; Jiménez, Maria A.; Durand, Pierre (Peer reviewed; Journal article, 2020)
      Profiles of the sensible heat flux are key to understanding atmospheric-boundary-layer (ABL) structure and development. Based on temperature profiling by a remotely-piloted aircraft system (RPAS), the Small Unmanned ...
    • Proof of concept for turbulence measurements with the RPAS SUMO during the BLLAST campaign 

      Båserud, Line; Reuder, Joachim; Jonassen, Marius Opsanger; Kral, Stephan; Bakhoday Paskyabi, Mostafa; Lothon, Marie (Peer reviewed; Journal article, 2016-10-06)
      The micro-RPAS (remotely piloted aircraft system) SUMO (Small Unmanned Meteorological Observer) equipped with a five-hole-probe (5HP) system for turbulent flow measurements was operated in 49 flight missions during the ...
    • Simulations of the Bergen orographic wind shelter 

      Jonassen, Marius Opsanger; Ólafsson, Haraldur; Valved, Aslaug Skålevik; Reuder, Joachim; Olseth, Jan Asle (Peer reviewed; Journal article, 2013-10-10)
      Even though the coast of western Norway is very windy, the centre of Bergen is rather calm. To gain further understanding of this wind shelter, we study the flow in the complex topography of Bergen during two south-westerly ...
    • Unravelling the March 1972 northwest Greenland windstorm with high-resolution numerical simulations 

      Tollinger, Mathias; Gohm, Alexander; Jonassen, Marius Opsanger (Peer reviewed; Journal article, 2019-08-07)
      Thule Air Base in northwest Greenland experienced an extreme windstorm during the night of 8/9 March 1972. The event is not among official WMO records because the anemometer broke after recording the highest gust of 93 m s−1. ...