Blar i Geophysical Institute på forfatter "Dörr, Jakob Simon"
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Forced and internal components of observed Arctic sea-ice changes
Dörr, Jakob Simon; Bonan, David; Årthun, Marius; Svendsen, Lea; Wills, Robert C.J. (Journal article; Peer reviewed, 2023)The Arctic sea-ice cover is strongly influenced by internal variability on decadal timescales, affecting both short-term trends and the timing of the first ice-free summer. Several mechanisms of variability have been ... -
Mechanisms of regional winter sea-ice variability in a warming arctic
Dörr, Jakob Simon; Årthun, Marius; Eldevik, Tor; Madonna, Erica (Journal article; Peer reviewed, 2021)The Arctic winter sea ice cover is in retreat overlaid by large internal variability. Changes to sea ice are driven by exchange of heat, momentum, and freshwater within and between the ocean and the atmosphere. Using a ... -
Present and future drivers of Arctic sea ice variability
Dörr, Jakob Simon (Doctoral thesis, 2024-03-07)Havisdekket i Arktis har blitt gradvis redusert de siste tiårene. Isdekket varierer likevel betydelig fra år til år, og fra tiår til tiår på grunn av naturlige (interne) variasjoner i klimasystemet. Slike interne variasjoner ... -
Rapid sea ice changes in the future Barents Sea
Rieke, Ole; Årthun, Marius; Dörr, Jakob Simon (Journal article; Peer reviewed, 2023)Observed and future winter Arctic sea ice loss is strongest in the Barents Sea. However, the anthropogenic signal of the sea ice decline is superimposed by pronounced internal variability that represents a large source of ... -
Rise and fall of sea ice production in the Arctic Ocean’s ice factories
Cornish, S.B.; Johnson, H.L.; Mallett, R.D.C.; Dörr, Jakob Simon; Kostov, Y.; Richards, A.E. (Journal article; Peer reviewed, 2022)The volume, extent and age of Arctic sea ice is in decline, yet winter sea ice production appears to have been increasing, despite Arctic warming being most intense during winter. Previous work suggests that further warming ...