• Climate response to aerosol geoengineering: a multi-method comparison 

      Muri, Helene; Tjiputra, Jerry; Otterå, Odd Helge; Adakudlu, Muralidhar; Lauvset, Siv Kari; Grini, Alf; Schulz, Michael; Niemeier, Ulrike; Kristjansson, Jon Egill (Journal article; Peer reviewed, 2018)
      Considering the ambitious climate targets of the Paris Agreement to limit global warming to 2°C, with aspirations of even 1.5°C, questions arise on how to achieve this. Climate geoengineering has been proposed as a potential ...
    • Evaluating climate geoengineering proposals in the context of the Paris Agreement temperature goals 

      Lawrence, Mark G.; Schãfer, Stefan; Muri, Helene; Scott, Vivian; Oschlies, Andreas; Vaughan, Naomi E.; Boucher, Olivier; Schmidt, Hauke; Haywood, Jim M.; Scheffran, Jürgen (Journal article; Peer reviewed, 2018)
      Current mitigation efforts and existing future commitments are inadequate to accomplish the Paris Agreement temperature goals. In light of this, research and debate are intensifying on the possibilities of additionally ...
    • Extreme temperature and precipitation response to solar dimming and stratospheric aerosol geoengineering 

      Ji, Duoying; Fang, Songsong; Curry, Charles L.; Kashimura, Hiroki; Watanabe, Shingo; Cole, Jason N.S.; Lenton, Andrew; Muri, Helene Østlie; Kravitz, Ben; Moore, John C. (Journal article; Peer reviewed, 2018)
      We examine extreme temperature and precipitation under two potential geoengineering methods forming part of the Geoengineering Model Intercomparison Project (GeoMIP). The solar dimming experiment G1 is designed to completely ...
    • Global streamflow and flood response to stratospheric aerosol geoengineering 

      Wei, Liren; Ji, Duoying; Miao, Chiyuan; Muri, Helene; Moore, John C. (Journal article; Peer reviewed, 2018)
      Flood risk is projected to increase under future warming climates due to an enhanced hydrological cycle. Solar geoengineering is known to reduce precipitation and slow down the hydrological cycle and may therefore be ...
    • Homogenizing GPS Integrated Water Vapor Time Series: Benchmarking Break Detection Methods on Synthetic Data Sets 

      Van Malderen, Roeland; Pottiaux, E.; Klos, A.; Domonkos, P.; Elias, M.; Ning, T.; Bock, O.; Guijarro, J.; Alshawaf, F.; Hoseini, Mostafa; Quarello, A.; Lebarbier, E.; Chimani, B.; Tornatore, V.; Zengin Kazancı, S.; Bogusz, J. (Peer reviewed; Journal article, 2020)
      We assess the performance of different break detection methods on three sets of benchmark data sets, each consisting of 120 daily time series of integrated water vapor differences. These differences are generated from the ...
    • Hydropower Production in Future Climate Scenarios: The Case for Kwanza River, Angola 

      Hamududu, Byman Hikanyona; Killingtveit, Ånund (Journal article; Peer reviewed, 2016)
      Climate change is altering hydrological processes with varying degrees in various regions of the world and remains a threat to water resources projects in southern Africa. The likely negative impacts of changes in Africa ...
    • Hydropower Production in Future Climate Scenarios; the Case for the Zambezi River 

      Hamududu, Byman Hikanyona; Killingtveit, Ånund (Journal article; Peer reviewed, 2016)
      Climate change remains a threat to water resources projects in southern Africa where impacts resulting from changes in climate are projected to be negative and worse than in most other regions of the world. This work ...
    • Impact of climate change on alpine vegetation of mountain summits in Norway 

      Vanneste, Thomas; Michelsen, Ottar; Graae, Bente Jessen; Kyrkjeeide, Magni Olsen; Holien, Håkon; Hassel, Kristian; Lindmo, Sigrid; Kapás, Rozália Erzsebet; De Frenne, Pieter (Journal article; Peer reviewed, 2017)
      Climate change is affecting the composition and functioning of ecosystems across the globe. Mountain ecosystems are particularly sensitive to climate warming since their biota is generally limited by low temperatures. ...
    • Mass balance and mass loss acceleration of the Greenland ice sheet (2002 – 2011) from GRACE gravity data 

      Joodaki, Gholamreza; Nahavandchi, Hossein (Journal article; Peer reviewed, 2012)
      We examine the magnitude and acceleration of the Greenland ice sheet mass loss between 2002 and 2011. We use monthly observations of time-variable gravity from the Gravity Recovery and Climate Experiment (GRACE) satellite ...
    • Mass loss of the Greenland ice sheet from GRACE time-variable gravity measurements 

      Joodaki, Gholamreza; Nahavandchi, Hossein (Peer reviewed; Journal article, 2012)
      The Gravity Recovery and Climate Experiment (GRACE) satellite data is used to estimate the rate of ice mass variability over Greenland. To do this, monthly GRACE level 2 Release-04 (RL04) data from three different processing ...
    • Mean Sea Surface and ocean circulation in North Atlantic and the Arctic Sea 

      Ghazavi, Kourosh; Nahavandchi, Hossein (Journal article; Peer reviewed, 2011)
      High resolution Mean Sea Surface (MSS) model and its error estimation over the study region (56°N
    • Next frontiers in energy system modelling: A review on challenges and the state of the art 

      Fodstad, Marte; Crespo del Granado, Pedro; Hellemo, Lars; Knudsen, Brage Rugstad; Pisciella, Paolo; Silvast, Antti; Bordin, Chiara; Schmidt, Sarah; Straus, Julian (Peer reviewed; Journal article, 2022)
      Energy Systems Modelling is growing in relevance on providing insights and strategies to plan a carbon-neutral future. The implementation of an effective energy transition plan faces multiple challenges, spanning from the ...
    • The scientific and community-building roles of the Geoengineering Model Intercomparison Project (GeoMIP) – past, present, and future 

      Visioni, Daniele; Kravitz, Ben; Robock, Alan; Tilmes, Simone; Haywood, Jim M.; Boucher, Oliviér; Lawrence, Mark G.; Irvine, Peter J.; Niemeier, Ulrike; Chiodo, Gabriel; Lennard, Chris; Watanabe, Shingo; Moore, John C.; Muri, Helene Østlie (Peer reviewed; Journal article, 2023)
      The Geoengineering Model Intercomparison Project (GeoMIP) is a coordinating framework, started in 2010, that includes a series of standardized climate model experiments aimed at understanding the physical processes and ...
    • Sea or summit? Wild reindeer spatial responses to changing high-arctic winters 

      Pedersen, Åshild Ønvik; Beumer, Larissa Teresa; Aanes, Ronny; Hansen, Brage Bremset (Peer reviewed; Journal article, 2021)
      Because of climate change, wildlife is facing altered environments, including profound shifts in temperature and precipitation regimes. In snow-dominated ecosystems, winter warming and resulting changes in snowpack properties ...
    • Seasonal variation analysis of Greenland ice mass time-series 

      Shamshiri, Roghayeh; Nahavandchi, Hossein; Joodaki, Gholamreza (Journal article; Peer reviewed, 2017)
      We derive the mass balance of Greenland ice sheet from the Gravity Recovery and Climate Experiment (GRACE) for the period January 2003–October 2014. We have found an ice mass loss with peak amplitude of −15 cm/yr in the ...
    • Steric sea level changes from ENVISAT and GRACE in the Nordic Seas 

      Joodaki, Gholamreza; Nahavandchi, Hossein; Ghazavi, Kourosh (Peer reviewed; Journal article, 2013)
      Steric sea level changes are estimated over the Nordic Seas using ENVISAT (Environmental Satellite) altimetry and GRACE (Gravity Recovery and Climate Experiment) gravity data. We have used altimetry data from the ENVISAT ...
    • Stratospheric Aerosol Geoengineering could lower future risk of 'Day Zero' level droughts in Cape Town 

      Odoulami, Romaric C.; New, Mark; Wolski, Piotr; Guillemet, Gregory; Pinto, Izidine; Lennard, Christopher; Muri, Helene; Tilmes, Simone (Peer reviewed; Journal article, 2020)
      Anthropogenic forcing of the climate is estimated to have increased the likelihood of the 2015–2017 Western Cape drought, also called 'Day Zero' drought, by a factor of three, with a projected additional threefold increase ...
    • The climate effects of increasing ocean albedo: an idealized representation of solar geoengineering 

      Kravitz, Ben; Rasch, Philip J.; Wang, Hailong; Robock, Alan; Gabriel, Corey; Boucher, Olivier; Cole, Jason N.S.; Haywood, Jim M.; Ji, Duoying; Jones, Andy; Lenton, Andrew; Moore, John C.; Muri, Helene; Niemeier, Ulrike; Phipps, Steven J.; Schmidt, Hauke; Watanabe, Shingo; Yang, Shuting; Yoon, Jin-Ho (Journal article; Peer reviewed, 2018)
      Geoengineering, or climate intervention, describes methods of deliberately altering the climate system to offset anthropogenic climate change. As an idealized representation of near-surface solar geoengineering over the ...
    • The role of large - scale BECCS in the pursuit of the 1.5°C target – an Earth system model perspective 

      Muri, Helene (Journal article; Peer reviewed, 2018)
      The increasing awareness of the many damaging aspects of climate change has prompted research into ways of reducing and reversing the anthropogenic increase in carbon concentrations in the atmosphere. Most emission scenarios ...
    • Updated OCTAS geoid in the northern North Atlantic - OCTAS07 

      Omang, Ove Christian Dahl; Hunegnaw, Addisu; Solheim, Dag; Lysaker, Dagny; Ghazavi, Kourosh; Nahavandchi, Hossein (Peer reviewed; Journal article, 2008)
      A new gravimetric geoid (OCTAS07v2) is generated using Stokes’ formula with gravity data as input. As local gravity data, a combination of land gravity data, new and old airborne gravity data, and adjusted marine gravity ...