Browsing Geophysical Institute by Title

Now showing items 709-728 of 1291

    • Monitoring the Norwegian Atlantic slope current using a single moored current meter 

      Orvik, Kjell Arild; Skagseth, Øystein (Peer reviewed; Journal article, 2003-01)
      Monitoring the Atlantic inflow (AI) of warm and saline water into the Nordic Seas (Norwegian, Greenland and Iceland Seas) is of great importance becauce of its impact on climate and ecology in Northern Europe and Arctic. ...

    • Monsoon low-pressure systems - the precipitation response to atmospheric warming 

      Sørland, Silje Lund (Doctoral thesis, 2015-04-24)
      The monsoon low-pressure systems (LPS) are amongst the most rain bearing synoptic scale systems that develop during the Indian monsoon, and they play a key role in generating extreme rainfall events in central India. This ...

    • Monsoon Onset in Bangladesh: Reconciling scientific and societal perspectives 

      Reeve, Mathew Alexander (Doctoral thesis, 2015-02-13)
      People of Bangladesh depend on the monsoon, and many of them depend on the timing of the monsoon onset for their livelihoods. In this study, we are motivated by the idea of providing information to these people about the ...

    • Monthly to annual variability of the Norwegian Atlantic slope current: connection between the northern North Atlantic and the Norwegian Sea 

      Skagseth, Øystein (Peer reviewed; Journal article, 2004-03)
      This study investigated relations between direct current measurements in the Norwegian Atlantic slope current (NwASC), the sea surface height variability from the TOPEX altimeter, and reanalysed mean sea level pressure ...

    • A multi-decadal record of oceanographic changes of the past ~165 years (1850-2015 AD) from Northwest of Iceland 

      Simon, Margit Hildegard; Muschitiello, Francesco; Tisserand, Amandine Aline; Olsen, Are; Moros, Matthias; Perner, Kerstin; Bårdsnes, Siv Tone; Dokken, Trond Martin; Jansen, Eystein (Journal article; Peer reviewed, 2020)
      Extending oceanographic data beyond the instrumental period is highly needed to better characterize and understand multi-decadal to centennial natural ocean variability. Here, a stable isotope record at unprecedented ...

    • A multi-decade record of high-quality fCO2 data in version 3 of the Surface Ocean CO2 Atlas (SOCAT) 

      Bakker, Dorothee C.E.; Pfeil, Benjamin; Landa, Camilla Stegen; Metzl, Nicolas; O'Brien, Kevin M.; Olsen, Are; Smith, Karl; Cosca, Cathy; Harasawa, Sumiko; Jones, Stephen Daniel; Nakaoka, Shin-Ichiro; Nojiri, Yukihiro; Schuster, Ute; Steinhoff, Tobias; Sweeney, Colm; Takahashi, Taro; Tilbrook, Bronte; Wada, Chisato; Wanninkhof, Rik; Alin, Simone R.; Balestrini, Carlos F.; Barbero, Leticia; Bates, Nicholas R.; Bianchi, Alejandro A.; Bonou, Frédéric; Boutin, Jacqueline; Bozec, Yann; Burger, Eugene F.; Cai, Wei-Jun; Castle, Robert D.; Chen, Liqi; Chierici, Melissa; Currie, Kim; Evans, Wiley; Featherstone, Charles; Feely, Richard A.; Fransson, Agneta Ingrid; Goyet, Catherine; Greenwood, Naomi; Gregor, Luke; Hankin, Steven; Hardman-Mountford, Nick J.; Harlay, Jérôme; Hauck, Judith; Hoppema, Mario; Humphreys, Matthew P.; Hunt, Christopher W.; Huss, Betty; Ibanhez, J. Severino P.; Johannessen, Truls; Keeling, Ralph; Kitidis, Vassilis; Körtzinger, Arne; Kozyr, Alex; Krasakopoulou, Evangelia; Kuwata, Akira; Landschützer, Peter; Lauvset, Siv Kari; Lefevre, Nathalie; Lo Monaco, Claire; Manke, Ansley; Mathis, Jeremy T.; Merlivat, Liliane; Millero, Frank J.; Monteiro, Pedro M.S.; Munro, David R.; Murata, Akihiko; Newberger, Timothy; Omar, Abdirahman; Ono, Tsuneo; Paterson, Kristina; Pearce, David A.; Pierrot, Denis; Robbins, Lisa L.; Saito, Shu; Salisbury, Joe; Schlitzer, Reiner; Schneider, Bernd; Schweitzer, Roland; Sieger, Rainer; Skjelvan, Ingunn; Sullivan, Kevin F.; Sutherland, Stewart C.; Sutton, Adrienne J.; Tadokoro, Kazuaki; Telszewski, Maciej; Tuma, Matthias; Van Heuven, Steven M.A.C.; Vandemark, Doug; Ward, Brian; Watson, Andrew J.; Xu, Suqing (Peer reviewed; Journal article, 2016-09-15)
      The Surface Ocean CO2 Atlas (SOCAT) is a synthesis of quality-controlled fCO2 (fugacity of carbon dioxide) values for the global surface oceans and coastal seas with regular updates. Version 3 of SOCAT has 14.7 million ...

    • The Multi-Purpose Airborne Sensor Carrier MASC-3 for Wind and Turbulence Measurements in the Atmospheric Boundary Layer 

      Rautenberg, Alexander; Schön, Martin; zum Berge, Kjell; Mauz, Moritz; Manz, Patrick; Platis, Andreas; van Kesteren, Bram; Suomi, Irene; Kral, Stephan; Bange, Jens (Peer reviewed; Journal article, 2019-05-17)
      For atmospheric boundary-layer (ABL) studies, unmanned aircraft systems (UAS) can provide new information in addition to traditional in-situ measurements, or by ground- or satellite-based remote sensing techniques. The ...

    • 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 ...

    • Multidecadal variability of ENSO in a recharge oscillator framework 

      Rodriguez Crespo, Lander; Rodríguez-Fonseca, María Belén; Polo, Irene; Keenlyside, Noel Sebastian; Dommenget, Dietmar (Journal article; Peer reviewed, 2022)
      We use a conceptual recharge oscillator model to identify changes in El Niño and the Southern Oscillation (ENSO) statistics and dynamics during the observational record. The variability of ENSO has increased during the ...

    • Multiple timescales of stochastically forced North Atlantic Ocean variability: A model study 

      Mecking, Jennifer V.; Keenlyside, Noel; Greatbatch, Richard J. (Peer reviewed; Journal article, 2015-09)
      The Atlantic meridional overturning circulation (AMOC) and the subpolar gyre (SPG) are important elements in mechanisms for multidecadal variability in models in the North Atlantic Ocean. In this study, a 2000-year long ...

    • Multiscale Simulation of Offshore Wind Variability During Frontal Passage: Brief Implication on Turbines’ Wakes and Load 

      Bakhoday Paskyabi, Mostafa; Krutova, Maria; Bui, Hai; Ning, Xu (Journal article; Peer reviewed, 2022)
      Enhancing the performance of offshore wind park power production requires, to a large extent, a better understanding of the interactions of wind farms and individual wind turbines with the atmospheric boundary layer over ...

    • Near-inertial mixing in the central Arctic Ocean 

      Fer, Ilker (Peer reviewed; Journal article, 2014-08)
      Observations were made in April 2007 of horizontal currents, hydrography, and shear microstructure in the upper 500 m from a drifting ice camp in the central Arctic Ocean. An approximately 4-day-long time series, collected ...

    • Necessary Conditions for Warm Inflow Toward the Filchner Ice Shelf, Weddell Sea 

      Daae, Kjersti; Hattermann, Tore; Darelius, Elin Maria K.; Mueller, Rachael D.; Naughten, Kaitlin A; Timmermann, Ralph; Hellmer, Hartmut H. (Journal article; Peer reviewed, 2020)
      Understanding changes in Antarctic ice shelf basal melting is a major challenge for predicting future sea level. Currently, warm Circumpolar Deep Water surrounding Antarctica has limited access to the Weddell Sea continental ...

    • Nemo-Nordic 1.0: A NEMO-based ocean model for the Baltic and North seas - Research and operational applications 

      Hordoir, Robinson; Axell, Lars; Höglund, Anders; Dieterich, Christian; Fransner, Filippa; Gröger, Matthias; Liu, Ye; Pemberton, Per; Schimanke, Semjon; Andersson, Helen; Ljungemyr, Patrik; Nygren, Petter; Falahat, Saeed; Nord, Adam; Jönsson, Anette; Lake, Iréne; Döös, Kristofer; Hieronymus, Magnus; Dietze, Heiner; Löptien, Ulrike; Kuznetsov, Ivan; Westerlund, Antti; Tuomi, Laura; Haapala, Jari (Peer reviewed; Journal article, 2019-01-21)
      We present Nemo-Nordic, a Baltic and North Sea model based on the NEMO ocean engine. Surrounded by highly industrialized countries, the Baltic and North seas and their assets associated with shipping, fishing and tourism ...

    • A nested multi-scale system implemented in the large-eddy simulation model PALM model system 6.0 

      Hellsten, Antti; Ketelsen, Klaus; Sühring, Matthias; Auvinen, Mikko; Maronga, Bjørn; Knigge, Christoph; Barmpas, Fotios; Tsegas, George; Moussiopoulos, Nicolas; Raasch, Siegfried (Journal article; Peer reviewed, 2021)
      Large-eddy simulation (LES) provides a physically sound approach to study complex turbulent processes within the atmospheric boundary layer including urban boundary layer flows. However, such flow problems often involve a ...

    • A Neural Network Method for Retrieving Sea Surface Wind Speed for C-Band SAR 

      Yu, Peng; Xu, Wenxiang; Zhong, Xiaojing; Johannessen, Johnny Andre; Yan, Xiao-Hai; Geng, Xupu; He, Yuanrong; Lu, Wenfang (Journal article; Peer reviewed, 2022-05-08)
      Based on the Ocean Projection and Extension neural Network (OPEN) method, a novel approach is proposed to retrieve sea surface wind speed for C-band synthetic aperture radar (SAR). In order to prove the methodology with a ...

    • New approaches to investigate the influence of orographic and dynamic blocking on large-scale atmospheric flow 

      Spensberger, Clemens (Doctoral thesis, 2015-01-15)
      Orographic and dynamic blocks have a profound influence on both weather and climate. The persistence of dynamic blocks can, for example, lead to the build-up of extreme temperature anomalies or droughts. In addition, ...

    • A new global interior ocean mapped climatology: the 1° ×  1° GLODAP version 2 

      Lauvset, Siv Kari; Key, Robert M.; Olsen, Are; van Heuven, Steven; Velo, Antón; Lin, Xiaohua; Schirnick, Carsten; Kozyr, Alex; Tanhua, Toste; Hoppema, Mario; Jutterström, Sara; Steinfeldt, Reiner; Jeansson, Emil; Ishii, Masao; Pérez, Fiz F.; Suzuki, Toru; Watelet, Sylvain (Peer reviewed; Journal article, 2016-08-15)
      We present a mapped climatology (GLODAPv2.2016b) of ocean biogeochemical variables based on the new GLODAP version 2 data product (Olsen et al., 2016; Key et al., 2015), which covers all ocean basins over the years 1972 ...

    • A new interpretative framework for below-cloud effects on stable water isotopes in vapour and rain 

      Graf, Pascal; Wernli, Heini; Pfahl, Stephan; Sodemann, Harald (Peer reviewed; Journal article, 2019-01-22)
      Raindrops interact with water vapour in ambient air while sedimenting from the cloud base to the ground. They constantly exchange water molecules with the environment and, in sub-saturated air, they evaporate partially or ...

    • New layer thickness parameterization of diffusive convection in the ocean 

      Zhou, Sheng-Qi; Lu, Yuan-Zheng; Song, Xue-Long; Fer, Ilker (Peer reviewed; Journal article, 2016-03)
      In the present study, a new parameterization is proposed to describe the convecting layer thickness in diffusive convection. By using in situ observational data of diffusive convection in the lakes and oceans, a wide range ...