Browsing Bergen Open Research Archive by Author "Li, Camille"
Now showing items 1-17 of 17
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Arctic amplification under global warming of 1.5 and 2 °C in NorESM1-Happi
Graff, Lise Seland; Iversen, Trond; Bethke, Ingo; Debernard, Jens Boldingh; Seland, Øyvind; Bentsen, Mats; Kirkevåg, Alf; Li, Camille; Oliviè, Dirk Jan Leo (Peer reviewed; Journal article, 2019)Differences between a 1.5 and 2.0 ∘C warmer climate than 1850 pre-industrial conditions are investigated using a suite of uncoupled (Atmospheric Model Intercomparison Project; AMIP), fully coupled, and slab-ocean experiments ... -
Atmospheric Circulation Response to Short-Term Arctic Warming in an Idealized Model
Hell, Momme; Schneider, Tapio; Li, Camille (Journal article; Peer reviewed, 2020)Recent Arctic sea ice loss in fall has been posited to drive midlatitude circulation changes into winter and even spring. Past work has shown that sea ice loss can indeed trigger a weakening of the stratospheric polar ... -
A brief history of climate – the northern seas from the Last Glacial Maximum to global warming
Eldevik, Tor; Risebrobakken, Bjørg; Bjune, Anne Elisabeth; Andersson, Carin; Birks, Harry John Betteley; Dokken, Trond Martin; Drange, Helge; Glessmer, Mirjam Sophia; Li, Camille; Nilsen, Jan Even Øie; Otterå, Odd Helge; Richter, Kristin; Skagseth, Øystein (Peer reviewed; Journal article, 2014-12)The understanding of climate and climate change is fundamentally concerned with two things: a well-defined and sufficiently complete climate record to be explained, for example of observed temperature, and a relevant ... -
Can we use ice sheet reconstructions to constrain meltwater for deglacial simulations?
Bethke, Ingo; Li, Camille; Nisancioglu, Kerim Hestnes (Peer reviewed; Journal article, 2012)Freshwater pulses from melting ice sheets are thought to be important for driving deglacial climate variability. This study investigates challenges in simulating and understanding deglacial climate evolution within this ... -
Changes in atmospheric variability in a glacial climate and the impacts on proxy data: a model intercomparison
Pausata, Francesco S. R.; Li, Camille; Wettstein, Justin; Nisancioglu, Kerim Hestnes; Battisti, David Stephen (Peer reviewed; Journal article, 2009-09-11)Using four different climate models, we investigate sea level pressure variability in the extratropical North Atlantic in the preindustrial climate (1750 AD) and at the Last Glacial Maximum (LGM, 21 kyrs before present) ... -
Connecting ocean heat transport changes from the mid-latitudes to the Arctic Ocean
Nummelin, Aleksi; Li, Camille; Hezel, Paul (Peer reviewed; Journal article, 2017-02)Under greenhouse warming, climate models simulate a weakening of the Atlantic Meridional Overturning Circulation and the associated ocean heat transport at midlatitudes but an increase in the ocean heat transport to the ... -
Consequences of future increased Arctic runoff on Arctic Ocean stratification, circulation, and sea ice cover
Nummelin, Aleksi; Ilicak, Mehmet; Li, Camille; Smedsrud, Lars Henrik (Peer reviewed; Journal article, 2016-01-21)The Arctic Ocean has important freshwater sources including river runoff, low evaporation, and exchange with the Pacific Ocean. In the future, we expect even larger freshwater input as the global hydrological cycle ... -
Control of Barents Sea wintertime cyclone variability by large-scale atmospheric flow
Madonna, Erica; Hes, Gabriel; Li, Camille; Michel, Clio; Siew, Yu Feng (Journal article; Peer reviewed, 2020)Extratropical cyclones transport heat and moisture into the Arctic, which can promote surface warming and sea ice melt. We investigate wintertime cyclone variability in the Barents Sea region to understand what controls ... -
Coupled atmosphere-ice-ocean dynamics in Dansgaard-Oeschger events
Li, Camille; Born, Andreas (Peer reviewed; Journal article, 2018-11-10)The Dansgaard-Oeschger events of the last ice age are among the best studied abrupt climate changes, yet a comprehensive explanation is still lacking. They are most pronounced in the North Atlantic, where they manifest as ... -
Dansgaard-Oeschger cycles: Interactions between ocean and sea ice intrinsic to the Nordic seas
Dokken, Trond Martin; Nisancioglu, Kerim Hestnes; Li, Camille; Battisti, David Stephen; Kissel, Catherine (Peer reviewed; Journal article, 2013-09)Dansgaard-Oeschger (D-O) cycles are the most dramatic, frequent, and wide-reaching abrupt climate changes in the geologic record. On Greenland, D-O cycles are characterized by an abrupt warming of 10 ± 5°C from a cold ... -
Intermittency of Arctic–mid-latitude teleconnections: stratospheric pathway between autumn sea ice and the winter North Atlantic Oscillation
Siew, Yu Feng; Li, Camille; Sobolowski, Stefan Pieter; King, Martin Peter (Journal article; Peer reviewed, 2020)There is an observed relationship linking Arctic sea ice conditions in autumn to mid-latitude weather the following winter. Of interest in this study is a hypothesized stratospheric pathway whereby reduced sea ice in the ... -
The key role of topography in altering North Atlantic atmospheric circulation during the last glacial period
Pausata, Francesco S. R.; Li, Camille; Wettstein, Justin; Kageyama, M.; Nisancioglu, Kerim Hestnes (Peer reviewed; Journal article, 2011-10-18)The Last Glacial Maximum (LGM; 21 000 yr before present) was a period of low atmospheric greenhouse gas concentrations, when vast ice sheets covered large parts of North America and Europe. Paleoclimate reconstructions and ... -
The link between eddy-driven jet variability and weather regimes in the North Atlantic-European sector
Madonna, Erica; Li, Camille; Grams, Christian M; Woollings, Tim (Peer reviewed; Journal article, 2017-10)This study reconciles two perspectives on wintertime atmospheric variability in the North Atlantic–European sector: the zonal‐mean framework comprising three preferred locations of the eddy‐driven jet (southern, central, ... -
The mechanisms that determine the response of the Northern Hemisphere’s stationary waves to North American Ice Sheets
Roberts, William H.G.; Li, Camille; Valdes, Paul J. (Peer reviewed; Journal article, 2019-07-01)Stationary waves describe the persistent meanders in the west–east flow of the extratropical atmosphere. Here, changes in stationary waves caused by ice sheets over North America are examined and the underlying mechanisms ... -
The relationship between the eddy-driven jet stream and northern European sea level variability
Mangini, Fabio; Chafik, Léon; Madonna, Erica; Li, Camille; Bertino, Laurent; Nilsen, Jan Even Øie (Journal article; Peer reviewed, 2021)Wintertime sea level variability over the northern European continental shelf is largely wind-driven. Using daily gridded sea level anomaly from altimetry, we examine both the spatial and the temporal relationship between ... -
Response of Arctic Ocean stratification to changing river runoff in a column model
Nummelin, Aleksi; Li, Camille; Smedsrud, Lars Henrik (Peer reviewed; Journal article, 2015-04-07)A one-dimensional model of the atmosphere-ice-ocean column is used to study the effects of changing river runoff to the Arctic Ocean. River runoff is the largest contributor of freshwater to the Arctic and is expected to ... -
Suppressed eddy driving during southward excursions of the North Atlantic jet on synoptic to seasonal time scales
Madonna, Erica; Li, Camille; Wettstein, Justin (Peer reviewed; Journal article, 2019-09-05)Jet streams shape midlatitude weather and climate. The North Atlantic jet is mainly eddy‐driven, with frequent north–south excursions on synoptic time scales arising from eddy forcings and feedbacks. There are, however, ...