Blar i Geophysical Institute på tittel

Viser treff 491-510 av 1185

    • The Influence of Vertical Mixing on the Stability of the Atlantic Meridional Overturning Circulation 

      Marzeion, Ben (Doctoral thesis, 2006-12-05)

    • Influences of Lake Malawi on the spatial and diurnal variability on local precipitation 

      Koseki, Shunya; Mooney, Priscilla A. (Peer reviewed; Journal article, 2019)
      We investigate how the intensity and spatial distribution of precipitation vary around Lake Malawi on a diurnal timescale, which can be valuable information for water resource management in tropical south-eastern African ...

    • Initialization shock in the ocean circulation reduces skill in decadal predictions of the North Atlantic subpolar gyre 

      Polkova, Iuliia; Swingedouw, Didier; Hermanson, Leon; Köhl, Armin; Stammer, Detlef; Smith, Doug; Kröger, Jürgen; Bethke, Ingo; Yang, Xiaosong; Zhang, Liping; Nicolì, Dario; Athanasiadis, Panos J.; Karami, Mehdi Pasha; Pankatz, Klaus; Pohlmann, Holger; Wu, Bo; Bilbao, Roberto; Ortega, Pablo; Yang, Shuting; Sospedra-Alfonso, Reinel; Merryfield, William; Kataoka, Takahito; Tatebe, Hiroaki; Imada, Yukiko; Ishii, Masayoshi; Matear, Richard J. (Journal article; Peer reviewed, 2023)
      Due to large northward heat transport, the Atlantic meridional overturning circulation (AMOC) strongly affects the climate of various regions. Its internal variability has been shown to be predictable decades ahead within ...

    • Innovative Strategies for Observations in the Arctic Atmospheric Boundary Layer 

      Kral, Stephan (Doctoral thesis, 2020-11-20)
      In this thesis, consisting of five scientific papers, I investigate the potential of unmanned aircraft systems (UAS) in stable boundary layer (SBL) research, by developing and applying a new innovative observation strategy. ...

    • 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 ...

    • Inorganic Carbon and Water Masses in the Irminger Sea since 1991 

      Fröb, Friederike; Olsen, Are; Pérez, Fiz F.; García-Ibáñez, Maribel I.; Jeansson, Emil; Omar, Abdirahman; Lauvset, Siv K. (Peer reviewed; Journal article, 2017-02-17)
      The subpolar gyre region in the North Atlantic is a major sink for anthropogenic carbon. While the storage rates show large interannual variability related to atmospheric forcing, less is known about variability in the ...

    • The inorganic carbon cycle of the Red Sea 

      Ali, Elsheikh Bashir (Doctoral thesis, 2017-11-14)
      The aim of this thesis has been to improve the general scientific understanding of the marine inorganic carbon cycle of the Red Sea. The region houses an exceptional range of ecosystems and it is considered the most important ...

    • Insights into the quantification and reporting of model-related uncertainty across different disciplines 

      Simmonds, Emily Grace; Dunn-Sigouin, Etienne; Adjei, Kwaku Peprah; Andersen, Christoffer Wold; Aspheim, Janne Cathrin Hetle; Battistin, Claudia; Bulso, Nicola; Christensen, Hannah M.; Cretois, Benjamin; Cubero, Ryan John Abat; Davidovich, Ivan Andres; Dickel, Lisa; Dunn, Benjamin Adric; Dyrstad, Karin; Einum, Sigurd; Giglio, Donata; Gjerløw, Haakon; Godefroidt, Amélie; González-Gil, Ricardo; Gonzalo Cogno, Soledad; Große, Fabian; Halloran, Paul; Jensen, Mari Fjalstad; Kennedy, John James; Langsæther, Peter Egge; Laverick, Jack H; Lederberger, Debora; Li, Camille; Mandeville, Elizabeth G; Mandeville, Caitlin; Moe, Espen; Schröder, Tobias Navarro; Nunan, David; Sicacha-Parada, Jorge; Simpson, Melanie Rae; Skarstein, Emma Sofie; Spensberger, Clemens; Stevens, Richard; Subramanian, Aneesh C.; Svendsen, Lea; Theisen, Ole Magnus; Watret, Connor; O'Hara, Robert B. (Journal article; Peer reviewed, 2022)
      Quantifying uncertainty associated with our models is the only way we can express how much we know about any phenomenon. Incomplete consideration of model-based uncertainties can lead to overstated conclusions with real-world ...

    • Insights into the Summer Diurnal Cycle over Eastern South Africa 

      Koseki, Shunya; Pohl, Benjamin; Bhatt, Bhuwan Chandra; Keenlyside, Noel; Nkwinkwa Njouodo, Arielle Stela (Journal article; Peer reviewed, 2018)
      Adopting a state-of-the-art numerical model system, we investigate how the diurnal variations in precipitation and local breeze systems are characterized by lower-boundary conditions related to the Drakensberg highland and ...

    • An Integrated Approach for Local Air Quality Assessment under Present and Future Climate Scenarios 

      Wolf-Grosse, Tobias (Doctoral thesis, 2016-12-16)
      Local circulation features in complex terrain are often not resolved in today’s mesoscale numerical weather prediction and research models. For urban areas embedded in complex terrain a prediction of the local circulation ...

    • Intensification of Near‐Surface Currents and Shear in the Eastern Arctic Ocean 

      Polyakov, Igor V.; Rippeth, Tom; Fer, Ilker; Baumann, Till Martin; Carmack, Eddy C.; Ivanov, Vladimir V.; Janout, Markus; Padman, Laurie; Pnyushkov, A.V.; Rember, Robert (Journal article; Peer reviewed, 2020)
      A 15‐year (2004–2018) record of mooring observations from the upper 50 m of the ocean in the eastern Eurasian Basin reveals increased current speeds and vertical shear, associated with an increasing coupling between wind, ...

    • Intensified Impacts of Central Pacific ENSO on the Reversal of December and January Surface Air Temperature Anomaly over China since 1997 

      Li, Hua; Fan, Ke; He, Shengping; Liu, Yong; Yuan, Xing; Wang, Huijun (Journal article; Peer reviewed, 2021)
      The reversal of surface air temperature anomalies (SATA) in winter brings a great challenge for short-term climate prediction, and the mechanisms are not well understood. This study found that the reversal of SATA between ...

    • An Intensity and Size Phase Space for Tropical Cyclone Structure and Evolution 

      Casas, Eleanor; Tao, Dandan; Bell, Michael (Journal article; Peer reviewed, 2023)
      Intensity and size are important to characterize a tropical cyclone (TC), but there are a wide variety of ways that both metrics are defined. TC intensity can refer to either a maximum sustained wind speed at some height ...

    • Interannual controls on Weddell Sea surface water fCO2 during the autumn–winter transition phase 

      Bellerby, Richard G. J.; Hoppema, M.; Fahrbach, E.; Baar, H. J. W. de; Stoll, M. (Peer reviewed; Journal article, 2004-06)
      The fugacity of carbon dioxide (fCO2) of the surface waters of the Weddell Sea along the prime meridian has been described for the austral autumn in 1996 and 1998. For individual years, fCO2 has a strong linear relationship ...

    • Interannual sea-air CO2 flux variability from an observation-driven ocean mixed-layer scheme 

      Rödenbeck, Christian; Bakker, Dorothée C.E.; Metzl, Nicolas; Olsen, Are; Sabine, Christopher; Cassar, Nicolas; Reum, Friedemann; Keeling, Ralph F.; Heimann, Martin (Peer reviewed; Journal article, 2014-09-01)
      Interannual anomalies in the sea–air carbon dioxide (CO2) exchange have been estimated from surface-ocean CO2 partial pressure measurements. Available data are sufficient to constrain these anomalies in large parts of the ...

    • Interannual variability and ventilation timescales in the ocean cavity beneath Filchner-Ronne Ice Shelf, Antarctica 

      Nicholls, Keith W.; Østerhus, Svein (Peer reviewed; Journal article, 2004-04-20)
      Multiyear time series of ocean current and temperatures from beneath Filchner-Ronne Ice Shelf, Antarctica, demonstrate both seasonal and interannual variability. The seasonal signal is visible at all measurement sites, ...

    • Interannual variability in the wintertime air–sea flux of carbon dioxide in the northern North Atlantic, 1981–2001 

      Olsen, Are; Bellerby, Richard G. J.; Johannessen, Truls; Omar, Abdirahman M.; Skjelvan, Ingunn (Peer reviewed; Journal article, 2003)
      Gridded fields of sea surface temperature (SST), sea level pressure (SLP), and wind speed were used in combination with data for the atmospheric mole fraction of CO2 and an empirical relationship between measured values ...

    • 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 ...

    • Interannual variations of freshwater content in Hornsund 

      Dølven, Knut Ola (Master thesis, 2015-05-04)
      Salinity measurements have been used to calculate the freshwater content in Hornsund for the years 2001 to 2014. In 2011 there was significantly higher freshwater content in the fjord, compared to the other years, with a ...