Browsing Institutt for geofag by Title

Now showing items 21-40 of 2336

  • A Consistent Framework for Coupling Basal Friction With Subglacial Hydrology on Hard-Bedded Glaciers 
    Gilbert, Adrien; Gimbert, Florent; Thøgersen, Kjetil; Schuler, Thomas; Kääb, Andreas (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Below hard-bedded glaciers, both basal friction and distributed subglacial drainage are thought to be controlled by a network of cavities. Previous coupled hydro-mechanical models, however, describe cavity-driven friction ...
  • A continental record of the Carnian Pluvial Episode (CPE) from the Mercia Mudstone Group (UK): palynology and climatic implications 
    Baranyi, Viktoria; Miller, Charlotte Sarah; Ruffell, Alastair; Hounslow, Mark W.; Kürschner, Wolfram Michael (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
    The generally arid Late Triassic climate was interrupted by a wet phase during the mid-Carnian termed the Carnian Pluvial Episode (CPE). Quantitative palynological data from the Mercia Mudstone Group in the Wessex Basin ...
  • A continued role of short-lived climate forcers under the Shared Socioeconomic Pathways 
    Lund, Marianne Tronstad; Aamaas, Borgar; Stjern, Camilla Weum; Klimont, Zbigniew; Berntsen, Terje Koren; Samset, Bjørn Hallvard (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Mitigation of non-CO2 emissions plays a key role in meeting the Paris Agreement ambitions and sustainable development goals. Implementation of respective policies addressing these targets mainly occur at sectoral and ...
  • A convolutional neural network approach to deblending seismic data 
    Sun, Jing; Slang, Sigmund; Elboth, Thomas; Greiner, Thomas Larsen; McDonald, Steven; Gelius, Leiv-J. (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
    For economic and efficiency reasons, blended acquisition of seismic data is becoming increasingly commonplace. Seismic deblending methods are computationally demanding and normally consist of multiple processing steps. ...
  • A Critical Review of Molybdenite 187Re Parent-187Os Daughter Intra-Crystalline Decoupling in Light of Recent In Situ Micro-Scale Observations 
    Zimmerman, Aaron; Yang, Gang; Stein, Holly Jayne; Hannah, Judith L. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Two recent advances in instrumentation convey rhenium and osmium elemental and isotopic distribution in molybdenite at the micro-scale: (1) NanoSIMS imaging which reveals heterogeneities that could preclude micro-scale ...
  • A data-driven model for Fennoscandian wildfire danger 
    Bakke, Sigrid Jørgensen; Wanders, Niko; Van Der Wiel, Karin; Tallaksen, Lena M. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Wildfires are recurrent natural hazards that affect terrestrial ecosystems, the carbon cycle, climate and society. They are typically hard to predict, as their exact location and occurrence are driven by a variety of ...
  • A dataset for predicting cloud cover over Europe 
    Svennevik, Hanna; Hicks, Steven; Riegler, Michael; Storelvmo, Trude; Hammer, Hugo Lewi (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
    Abstract Clouds are important factors when projecting future climate. Unfortunately, future cloud fractional cover (the portion of the sky covered by clouds) is associated with significant uncertainty, making climate ...
  • A dataset of direct observations of sea ice drift and waves in ice 
    Rabault, Jean; Müller, Malte; Voermans, Joey; Brazhnikov, Dmitry; Turnbull, Ian; Marchenko, Aleksey; Biuw, Martin; Nose, Takehiko; Waseda, Takuji; Johansson, Malin; Breivik, Øyvind; Sutherland, Graig; Hole, Lars Robert; Johnson, Mark; Jensen, Atle; Gundersen, Olav; Kristoffersen, Yngve; Babanin, Alexander; Tedesco, Paulina Souza; Christensen, Kai Håkon; Kristiansen, Martin; Hope, Gaute; Kodaira, Tsubasa; Martins de Aguiar, Victor Cesar; Taelman, Catherine Cecilia A; Quigley, Cornelius Patrick; Filchuk, Kirill; Mahoney, Andrew R. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Variability in sea ice conditions, combined with strong couplings to the atmosphere and the ocean, lead to a broad range of complex sea ice dynamics. More in-situ measurements are needed to better identify the phenomena ...
  • A detailed analysis of the Gl 486 planetary system 
    Caballero, J.A.; González-Álvarez, E.; Brady, M.; Trifonov, T.; Ellis, T.G.; Dorn, C.; Cifuentes, C.; Molaverdikhani, K.; Bean, J.L.; Boyajian, T.; Rodríguez, E.; Sanz-Forcada, J.; Zapatero Osorio, Osorio; Abia, C.; Amado, P.J.; Anugu, N.; Béjar, V.J.S.; Davies, C.L.; Dreizler, S.; Dubois, F.; Ennis, J.; Espinoza, N.; Farrington, C.D.; López, A. García; Gardner, T.; Hatzes, A.P.; Henning, Th.; Herrero, E.; Herrero-Cisneros, E.; Kaminski, A.; Kasper, D.; Klement, R.; Kraus, S.; Labdon, A.; Lanthermann, C.; Le Bouquin, Bouquin; González, M. J. Lópej; Luque, R.; Mann, A.W.; Marfil, E.; Monnier, J.D.; Montes, D.; Morales, J.C.; Pallé, E.; Pedraz, S.; Quirrenbach, A.; Reffert, S.; Reiners, A.; Ribas, I.; Rodríguez-López, C.; Schaefer, G.; Schweitzer, A.; Seifahrt, A.; Setterholm, B.R.; Shan, Yutong; Shulyak, D.; Solano, E.; Sreenivas, K.R.; Stefánsson, G.; Stürmer, J.; Tabernero, H.M.; Tal-Or, L.; Ten Brummelaar, Brummelaar; Vanaverbeke, S.; Von Braun, Braun; Youngblood, A.; Zechmeister, M. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Context . The Gl 486 system consists of a very nearby, relatively bright, weakly active M3.5 V star at just 8 pc with a warm transiting rocky planet of about 1.3 R ⊕ and 3.0 M ⊕ . It is ideal for both transmission and ...
  • A digital compilation of structural and magmatic elements of the mid-Norwegian continental margin (Version 1.0) 
    Gernigon, Laurent; Zastrozhnov, Dmitrii; Planke, Sverre; Manton, Ben; Abdelmalak, Mohamed Mansour; Olesen, Odleiv; Maharjan, Dwarika; Faleide, Jan Inge; Myklebust, Reidun (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    A new generation of long-offset 2D seismic reflection lines, 2D-cubed seismic volumes, extensive 3D seismic surveys, high-resolution potential field data, and exploration wells has resulted in improved geological mapping ...
  • A first chronology for the East Greenland Ice-core Project (EGRIP) over the Holocene and last glacial termination 
    Mojtabavi, Seyedhamidreza; Wilhelms, Frank; Cook, Eliza; Davies, Siwan M.; Sinnl, Giulia; Skov Jensen, Mathias; Dahl-Jensen, Dorthe; Svensson, Anders; Vinther, Bo; Kipfstuhl, Sepp; Jones, Gwydion; Karlsson, Nanna B.; Henrique Faria, Sergio; Gkinis, Vasileios; Astrid Kjær, Helle; Erhardt, Tobias; Berben, Sarah Miche Patricia; Nisancioglu, Kerim Hestnes; Koldtoft, Iben; Olander Rasmussen, Sune (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    This paper provides the first chronology for the deep ice core from the East Greenland Ice-core Project (EGRIP) over the Holocene and the late last glacial period. We rely mainly on volcanic events and common peak patterns ...
  • A forecasting and warning system of storm surge events along the Norwegian coast 
    Kristensen, Nils Melsom; Røed, Lars Petter; Sætra, Øyvind (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Abstract We consider the Norwegian Meteorological Institute’s system regarding the daily forecasts of water level, and warnings of possible dangerous water level events along the Norwegian coast. The system consists of ...
  • A framework for determining lowest navigable water levels with nonstationary characteristics 
    Wang, Lu; Xie, Ping; Xu, Chong-Yu; Sang, Yan-Fang; Chen, Jie; Yu, Tao (Journal article / Tidsskriftartikkel / SubmittedVersion, 2022)
    The Lowest navigable water level (LNWL) is an important indicator used for navigation design to balance the relationship between navigation safety and economic benefits of a waterway. However, it is a challenge of accurately ...
  • A framework for quantifying the impacts of climate change and human activities on hydrological drought in a semiarid basin of Northern China 
    Jiang, Shanhu; Wang, Menghao; Ren, Liliang; Xu, Chong-Yu; Yuan, Fei; Liu, Yi; Lu, Yujie; Shen, Hongren (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
    Climate change and human activities are two major driving forces affecting the hydrologic cycle, which further influence the stationarity of the hydrologic regime. Hydrological drought is a substantial negative deviation ...
  • A framework for seasonal variations of hydrological model parameters: impact on model results and response to dynamic catchment characteristics 
    Lan, Tian; Lin, Kairong; Xu, Chong-Yu; Liu, Zhiyong; Cai, Huayang (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Previous studies have shown that the seasonal dynamics of model parameters can compensate for structural defects of hydrological models and improve the accuracy and robustness of the streamflow forecast to some extent. ...
  • A Framework on Fast Mapping of Urban Flood Based on a Multi-Objective Random Forest Model 
    Liao, Yaoxing; Wang, Zhaoli; Lai, Chengguang; Xu, Chong-Yu (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Fast and accurate prediction of urban flood is of considerable practical importance to mitigate the effects of frequent flood disasters in advance. To improve urban flood prediction efficiency and accuracy, we proposed a ...
  • A framework to quantify the uncertainty contribution of GCMs over multiple sources in hydrological impacts of climate change 
    Wang, Huimin; Chen, Jie; Xu, Chong-Yu; Zhang, J.K.; Chen, Hua (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    The quantification of climate change impacts on hydrology is subjected to multiple uncertainty sources. Large ensembles of hydrological simulations based on multimodel ensembles (MMEs) have been commonly applied to represent ...
  • A geochemical, mineralogical and geotechnical characterization of the low plastic, highly sensitive glaciomarine clay at Dragvoll, Norway 
    Helle, Tonje Eide; Aagaard, Per; Nordal, Steinar; Long, Michael; Bazin, Sara (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    The sediments at the NTNU research site Dragvoll, Trondheim, Norway accumulated in seawater close to the glacier front during the Pleistocene-Holocene transition. A comprehensive site investigation and laboratory test ...
  • A global apparent polar wander path for the last 320 Ma calculated from site-level paleomagnetic data 
    Vaes, Bram; Van Hinsbergen, Douwe; van de Lagemaat, Suzanna H.A.; van der Wiel, Erik; Lom, Nalan; Advokaat, Eldert L.; Boschman, Lydian M.; Gallo, Leandro Cesar; Greve, Annika; Guilmette, Carl; Li, Shihu; Lippert, Peter C.; Montheil, Leny; Qayyum, Abdul; Langereis, Cor G. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Apparent polar wander paths (APWPs) calculated from paleomagnetic data describe the motion of tectonic plates relative to the Earth's rotation axis through geological time, providing a quantitative paleogeographic framework ...
  • A GNSS velocity field for geophysical applications in Fennoscandia 
    Kierulf, Halfdan Pascal; Steffen, Holger; Barletta, Valentina R.; Lidberg, Martin; Johansson, Jan; Kristiansen, Oddgeir; Tarasov, Lev (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    In Fennoscandia, tectonics, Glacial Isostatic Adjustment (GIA), and climatic changes cause ongoing crustal deformation of some millimetres per year, both vertically and horizontally. These displacements of the Earth can ...