• An Evaluation of the EnKF vs. EnOI and the Assimilation of SMAP, SMOS and ESA CCI Soil Moisture Data over the Contiguous US 

      Blyverket, Jostein; Hamer, Paul David; Bertino, Laurent; Albergel, Clement; Fairbairn, David; Lahoz, William A. (Peer reviewed; Journal article, 2019-02-26)
      A number of studies have shown that assimilation of satellite derived soil moisture using the ensemble Kalman Filter (EnKF) can improve soil moisture estimates, particularly for the surface zone. However, the EnKF is ...
    • An evaluation of the performance of sea ice thickness forecasts to support arctic marine transport 

      Bilge, Tarkan A.; Fournier, Nicolas; Mignac, Davi; Hume-Wright, Laura; Bertino, Laurent; Williams, Timothy; Tietsche, Steffen (Journal article; Peer reviewed, 2022)
      In response to declining sea ice cover, human activity in the Arctic is increasing, with access to the Arctic Ocean becoming more important for socio-economic reasons. Accurate knowledge of sea ice conditions is therefore ...
    • Evaluation of three numerical weather prediction models for the Weddell Sea region for the Austral winter 2013 

      Jonassen, Marius Opsanger; Nygård, Tiina; Vihma, Timo Pekka (Journal article; Peer reviewed, 2021)
      It is widely recognized that numerical weather prediction (NWP) results for the Antarctic are relatively poor compared to the mid-latitudes. In this study, we evaluate output from three operational NWP systems: the ECMWF, ...
    • Evaluering av potensiale for hybride fremdriftsløsninger i fritidsbåter 

      Shanker, Dan Shiva Mjåseth (Master thesis, 2021-06-01)
      Evaluering av hybriddrift for fritidsbåter av typen snekke og sjark med fartspotensiale 0 til 9 knop. Bruk av dataverktøy som Ricardo IGNITE og Excel for å se på effektbehov, forbruk og rekkevidde ved hybriddrift
    • Evidence of Isotopic Fractionation During Vapor Exchange Between the Atmosphere and the Snow Surface in Greenland 

      Madsen, M.V.; Steen‐Larsen, H.C.; Hörhold, M.; Box, J.; Berben, Sarah Miche Patricia; Capron, E.; Faber, Anne-Katrine; Hubbard, Alun Lloyd; Jensen, Mari Fjalstad; Jones, T.R.; Kipfstuhl, S.; Koldtoft, I.; Pillar, H.R.; Vaughn, B.H.; Vladimirova, D.; Dahl‐Jensen, D. (Peer reviewed; Journal article, 2019-03)
      Several recent studies from both Greenland and Antarctica have reported significant changes in the water isotopic composition of near‐surface snow between precipitation events. These changes have been linked to isotopic ...
    • Evolving and sustaining ocean best practices and standards for the next decade 

      Pearlman, Jay; Bushnell, Mark; Coppola, Laurent; Karstensen, Johannes; Buttigieg, Pier Luigi; Pearlman, Françoise; Simpson, Pauline; Barbier, Michele; Muller-Karger, Frank Edgar; Munoz-Mas, Cristian; Pissierssens, Peter; Chandler, Cyndy; Hermes, Juliet; Heslop, Emma; Jenkyns, Reyna; Achterberg, Eric P.; Bensi, Manuel; Bittig, Henry C.; Blandin, Jerome; Bosch, Julie; Bourles, Bernard; Bozzano, Roberto; Buck, Justin J.H.; Burger, Eugene F.; Cano, Daniel; Cardin, Vanessa; Llorens, Miguel Charcos; Cianca, Andres; Chen, Hua; Cusack, Caroline; Delory, Eric; Garello, Rene; Giovanetti, Gabriele; Harscoat, Valerie; Hartman, Susan; Heitsenrether, Robert; Jirka, Simon; Lara-Lopez, Ana Ligia; Lanteri, Nadine; Leadbetter, Adam; Manzella, Giuseppe; Maso, Joan; McCurdy, Andrea; Moussat, Eric; Ntoumas, Manolis; Pensieri, Sara; Petihakis, George; Pinardi, Nadia; Pouliquen, Sylvie; Przeslawski, Rachel; Roden, Nicholas; Silke, Joe; Tamburri, Mario N.; Tang, Hairong; Tanhua, Toste; Telszewski, Maciej; Testor, Pierre; Thomas, Julie; Waldmann, Christoph; Whoriskey, Fred (Peer reviewed; Journal article, 2019-06-04)
      The oceans play a key role in global issues such as climate change, food security, and human health. Given their vast dimensions and internal complexity, efficient monitoring and predicting of the planet’s ocean must be a ...
    • Evolving the global ocean observing system for research and application services through international coordination 

      Sloyan, Bernadette M.; Wilkin, John; Hill, Katherine L.; Chidichimo, Maria Paz; Cronin, Meghan F; Johannessen, Johnny Andre; Karstensen, Johannes; Krug, Marjolaine; Lee, Tong; Oka, Eitarou; Palmer, Matthew D.; Rabe, Benjamin; Speich, Sabrina; von Schuckmann, Karina; Weller, Robert A; Yu, Weidong (Peer reviewed; Journal article, 2019-08-06)
      Climate change and variability are major societal challenges, and the ocean is an integral part of this complex and variable system. Key to the understanding of the ocean’s role in the Earth’s climate system is the study ...
    • Exceptionally Warm and Prolonged Flow of Warm Deep Water Toward the Filchner‐Ronne Ice Shelf in 2017 

      Ryan, Svenja; Hellmer, Hartmut H.; Janout, Markus; Darelius, Elin Maria K.; Schröder, Michael; Vignes, Lucie (Journal article; Peer reviewed, 2020)
      The Filchner-Ronne Ice Shelf, fringing the southern Weddell Sea, is Antarctica's second largest ice shelf. At present, basal melt rates are low due to active dense water formation; however, model projections suggest a ...
    • Exchange of water masses between the southern Weddell Sea continental shelf and the deep ocean 

      Daae, Kjersti Birkeland (Doctoral thesis, 2018-06-13)
      The exchange of water masses between the shallow Weddell Sea continental shelf and the deep ocean is of climatic importance. Firstly, on-shelf transport of warm oceanic water masses, contributes to basal melting of ice ...
    • 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 ...
    • Experimental investigation of the stable water isotope distribution in an Alpine lake environment (L-WAIVE) 

      Chazette, Patrick; Flamant, Cyrille; Sodemann, Harald; Totems, Julien; Monod, Anne; Dieudonné, Elsa; Baron, Alexandre; Seidl, Andrew Walter; Steen-Larsen, Hans Christian; Doira, Pascal; Durand, Amandine; Ravier, Sylvain (Journal article; Peer reviewed, 2021)
      In order to gain understanding on the vertical structure of atmospheric water vapour above mountain lakes and to assess its link with the isotopic composition of the lake water and with small-scale dynamics (i.e. valley ...
    • Experimental methods to study the process of snow-ice formation induced by saltwater rise 

      Kern, Yannick Rouven (Master thesis, 2018-11-09)
      The Arctic region is experiencing a change from thick multiyear to much younger and thinner sea ice. In many places, increasing precipitation is leading to higher snow loads on young sea ice. Hence seawater can infiltrate ...
    • An experimental study on the effects of winglets on the tip vortex interaction in the near wake of a model wind turbine 

      Bartl, Jan; Mühle, Franz Volker; Hansen, Thomas; Adaramola, Muyiwa S.; Sætran, Lars Roar (Journal article; Peer reviewed, 2020)
      An experimental study of the near wake up to four rotor diameters behind a model wind turbine rotor with two different wing tip configurations is performed. A straight-cut wing tip and a downstream-facing winglet shape are ...
    • Exploring Arctic-midlatitude teleconnections using observations and numerical models 

      Siew, Yu Feng (Doctoral thesis, 2021-05-27)
      The Arctic is warming at a much faster rate than the rest of the globe, with large declines in sea ice, snow cover and permafrost over the last decades. These profound changes have been proposed to influence the midlatitude ...
    • Exploring the coupled ocean and atmosphere system with a data science approach applied to observations from the Antarctic Circumnavigation Expedition 

      Landwehr, Sebastian; Volpi, Michele; Haumann, F. Alexander; Robinson, Charlotte M.; Thurnherr, Iris Livia; Ferracci, Valerio; Baccarini, Andrea; Thomas, Jenny; Gorodetskaya, Irina; Tatzelt, Christian; Henning, Silvia; Modini, Rob L.; Forrer, Heather J.; Lin, Yajuan; Cassar, Nicolas; Simó, Rafel; Hassler, Christel; Moallemi, Alireza; Fawcett, Sarah; Harris, Neil; Airs, Ruth; Derkani, Marzieh H.; Alberello, Alberto; Toffoli, Alessandro; Chen, Gang; Rodríguez-Ros, Pablo; Zamanillo, Marina; Cortés-Greus, Pau; Xue, Lei; Bolas, Conor G.; Leonard, Katherine C.; Perez-Cruz, Fernando; Walton, David; Schmale, Julia (Journal article; Peer reviewed, 2021)
      The Southern Ocean is a critical component of Earth's climate system, but its remoteness makes it challenging to develop a holistic understanding of its processes from the small scale to the large scale. As a result, our ...
    • 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 ...
    • Export of calcium carbonate corrosive waters from the East Siberian Sea 

      Anderson, Leif G.; Ek, Jörgen; Ericson, Ylva; Humborg, Christoph; Semiletov, Igor; Sundbom, Magnus; Ulfsbo, Adam (Peer reviewed; Journal article, 2017-04-05)
      The Siberian shelf seas are areas of extensive biogeochemical transformation of organic matter, both of marine and terrestrial origin. This in combination with brine production from sea ice formation results in a cold ...
    • Export of ice sheet meltwater from Upernavik fjord, West Greenland 

      Muilwijk, Morven; Straneo, Fiammetta; Slater, Donald A.; Smedsrud, Lars Henrik; Holte, James; Wood, Michael; Andresen, Camilla S.; Harden, Ben (Journal article; Peer reviewed, 2022)
      Meltwater from Greenland is an important freshwater source for the North Atlantic Ocean, released into the ocean at the head of fjords in the form of runoff, submarine melt, and icebergs. The meltwater release gives rise ...
    • Extracting statistical parameters of extreme precipitation from a NWP model 

      Eliasson, J.; Rögnvaldsson, Ólafur; Jónsson, T. (Peer reviewed; Journal article, 2009-11-25)
      Precipitation simulations on an 8×8 km grid using the PSU/NCAR Mesoscale Model MM5 are used to estimate the M5 and Ci statistical parameters in order to support the M5 map used for flood estimates by Icelandic engineers. ...
    • Extreme precipitation in Central Norway. A case and climate study 

      Steensen, Birthe Marie Rødssæteren (Master thesis, 2010-06-01)
      An extreme precipitation event occurred over Central Norway at the end of January to the beginning of February 2006. The heavy precipitation in addition to high temperatures lead to snow melt and increased run-off, which ...