Norwegian fjord sediments reveal NAO related winter temperature and precipitation changes of the past 2800 years
International audience The North Atlantic Oscillation (NAO) is the leading mode of atmospheric circulation variability in the North Atlantic region. Associated shifts of storm tracks, precipitation and temperature patterns affect energy supply and demand, fisheries and agricultural, as well as marin...
Published in: | Earth and Planetary Science Letters |
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ftunivnantes:oai:HAL:hal-02128902v1 2023-05-15T16:21:32+02:00 Norwegian fjord sediments reveal NAO related winter temperature and precipitation changes of the past 2800 years Faust, Johan, Fabian, Karl Milzer, Gesa Giraudeau, Jacques Knies, Jochen University of Tromsø (UiT) The Arctic University of Norway Tromsø, Norway (UiT) Environnements et Paléoenvironnements OCéaniques (EPOC) Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École pratique des hautes études (EPHE) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) UMR 5805 Environnements et Paléoenvironnements Océaniques et Continentaux (EPOC) 2016 https://hal.science/hal-02128902 https://doi.org/10.1016/j.epsl.2015.12.003 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.epsl.2015.12.003 hal-02128902 https://hal.science/hal-02128902 doi:10.1016/j.epsl.2015.12.003 ISSN: 0012-821X Earth and Planetary Science Letters https://hal.science/hal-02128902 Earth and Planetary Science Letters, 2016, 435, pp.84-93. ⟨10.1016/j.epsl.2015.12.003⟩ Marine Sediments NAO Trondheimsfjord Norway [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2016 ftunivnantes https://doi.org/10.1016/j.epsl.2015.12.003 2023-02-08T07:40:47Z International audience The North Atlantic Oscillation (NAO) is the leading mode of atmospheric circulation variability in the North Atlantic region. Associated shifts of storm tracks, precipitation and temperature patterns affect energy supply and demand, fisheries and agricultural, as well as marine and terrestrial ecological dynamics. Long-term NAO records are crucial to better understand its response to climate forcing factors, and assess predictability and shifts associated with ongoing climate change. A recent study of instrumental time series revealed NAO as main factor for a strong relation between winter temperature, precipitation and river discharge in central Norway over the past 50 years. Here we compare geochemical measurements with instrumental data and show that primary productivity recorded in central Norwegian fjord sediments is sensitive to NAO variability. This observation is used to calibrate paleoproductivity changes to a 500-year reconstruction of winter NAO (Luterbacher et al., 2001). Conditioned on a stationary relation between our climate proxy and the NAO we establish a first high resolution NAO proxy record (NAO TFJ) from marine sediments covering the past 2800 years. The NAO TFJ shows distinct co-variability with climate changes over Greenland, solar activity and Northern Hemisphere glacier dynamics as well as climatically associated paleo-demographic trends. The here presented climate record shows that fjord sediments provide crucial information for an improved understanding of the linkages between atmospheric circulation, solar and oceanic forcing factors. Article in Journal/Newspaper glacier glacier Greenland North Atlantic North Atlantic oscillation Université de Nantes: HAL-UNIV-NANTES Greenland Norway Earth and Planetary Science Letters 435 84 93 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
Marine Sediments NAO Trondheimsfjord Norway [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
Marine Sediments NAO Trondheimsfjord Norway [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Faust, Johan, Fabian, Karl Milzer, Gesa Giraudeau, Jacques Knies, Jochen Norwegian fjord sediments reveal NAO related winter temperature and precipitation changes of the past 2800 years |
topic_facet |
Marine Sediments NAO Trondheimsfjord Norway [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience The North Atlantic Oscillation (NAO) is the leading mode of atmospheric circulation variability in the North Atlantic region. Associated shifts of storm tracks, precipitation and temperature patterns affect energy supply and demand, fisheries and agricultural, as well as marine and terrestrial ecological dynamics. Long-term NAO records are crucial to better understand its response to climate forcing factors, and assess predictability and shifts associated with ongoing climate change. A recent study of instrumental time series revealed NAO as main factor for a strong relation between winter temperature, precipitation and river discharge in central Norway over the past 50 years. Here we compare geochemical measurements with instrumental data and show that primary productivity recorded in central Norwegian fjord sediments is sensitive to NAO variability. This observation is used to calibrate paleoproductivity changes to a 500-year reconstruction of winter NAO (Luterbacher et al., 2001). Conditioned on a stationary relation between our climate proxy and the NAO we establish a first high resolution NAO proxy record (NAO TFJ) from marine sediments covering the past 2800 years. The NAO TFJ shows distinct co-variability with climate changes over Greenland, solar activity and Northern Hemisphere glacier dynamics as well as climatically associated paleo-demographic trends. The here presented climate record shows that fjord sediments provide crucial information for an improved understanding of the linkages between atmospheric circulation, solar and oceanic forcing factors. |
author2 |
University of Tromsø (UiT) The Arctic University of Norway Tromsø, Norway (UiT) Environnements et Paléoenvironnements OCéaniques (EPOC) Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École pratique des hautes études (EPHE) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) UMR 5805 Environnements et Paléoenvironnements Océaniques et Continentaux (EPOC) |
format |
Article in Journal/Newspaper |
author |
Faust, Johan, Fabian, Karl Milzer, Gesa Giraudeau, Jacques Knies, Jochen |
author_facet |
Faust, Johan, Fabian, Karl Milzer, Gesa Giraudeau, Jacques Knies, Jochen |
author_sort |
Faust, Johan, |
title |
Norwegian fjord sediments reveal NAO related winter temperature and precipitation changes of the past 2800 years |
title_short |
Norwegian fjord sediments reveal NAO related winter temperature and precipitation changes of the past 2800 years |
title_full |
Norwegian fjord sediments reveal NAO related winter temperature and precipitation changes of the past 2800 years |
title_fullStr |
Norwegian fjord sediments reveal NAO related winter temperature and precipitation changes of the past 2800 years |
title_full_unstemmed |
Norwegian fjord sediments reveal NAO related winter temperature and precipitation changes of the past 2800 years |
title_sort |
norwegian fjord sediments reveal nao related winter temperature and precipitation changes of the past 2800 years |
publisher |
HAL CCSD |
publishDate |
2016 |
url |
https://hal.science/hal-02128902 https://doi.org/10.1016/j.epsl.2015.12.003 |
geographic |
Greenland Norway |
geographic_facet |
Greenland Norway |
genre |
glacier glacier Greenland North Atlantic North Atlantic oscillation |
genre_facet |
glacier glacier Greenland North Atlantic North Atlantic oscillation |
op_source |
ISSN: 0012-821X Earth and Planetary Science Letters https://hal.science/hal-02128902 Earth and Planetary Science Letters, 2016, 435, pp.84-93. ⟨10.1016/j.epsl.2015.12.003⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.epsl.2015.12.003 hal-02128902 https://hal.science/hal-02128902 doi:10.1016/j.epsl.2015.12.003 |
op_doi |
https://doi.org/10.1016/j.epsl.2015.12.003 |
container_title |
Earth and Planetary Science Letters |
container_volume |
435 |
container_start_page |
84 |
op_container_end_page |
93 |
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1766009534833229824 |