Helene Løvstrand Svarva
Publikasjoner
2026
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Martin, Sarah Louise;
Martin, Michael David;
Seiler, Martin;
Rzadeczka-Juga, Izabela;
Svarva, Helene Løvstrand;
Philippsen, Bente.
(2026)
Determining vertical growth patterns and tissue of maximum age using radiocarbon dating in the long-lived Namib Desert plant Welwitschia mirabilis.
Radiocarbon: An International Journal of Cosmogenic Isotope Research
Vitenskapelig artikkel
2025
-
Philippsen, Bente;
Svarva, Helene Løvstrand.
(2025)
Tidens spor i hvalross, sjakkbrikker og stavkirker/Traces of Time in Walrus Bone, Chess Pieces and Stave Churches.
Annet
-
Collet, Dominik;
White, Sam;
Bremer, Scott;
Brenna, Brita;
Glørstad, Håkon;
Gundersen, Ingar Mørkestøl.
(2025)
The Little Ice Age: The History and Future of a Traveling Concept.
Wiley Interdisciplinary Reviews: Climate Change (WIRESs)
Vitenskapelig artikkel
-
Svarva, Helene Løvstrand;
Grootes, Pieter M.;
Seiler, Martin Thomas;
Nadeau, Marie-Josée.
(2025)
Modeling the contribution of carbon sources using cellulose 14C concentrations in subannual tree ring increments over the 1963 bomb spike.
Radiocarbon: An International Journal of Cosmogenic Isotope Research
Vitenskapelig artikkel
2024
-
Svarva, Helene Løvstrand;
Hjelen, Ola;
Borgen, Linn Willetts.
(2024)
Dateringsanalyser av bygningsmaterialer i Rødven stavkirke.
Faglig kapittel
-
Khumalo, Wendy Hlengiwe;
Svarva, Helene Løvstrand;
Zurbach, Damaris Charlotte Marie;
Nadeau, Marie-Josée.
(2024)
Squeaky Clean Cellulose: Comparing Pretreatment Effectiveness on Single Tree Rings and Wooden Laths.
Radiocarbon: An International Journal of Cosmogenic Isotope Research
Vitenskapelig artikkel
2023
-
Santos, Guaciara M.;
Leong, Christopher A.;
Grootes, Pieter Meiert;
Seiler, Martin Thomas;
Svarva, Helene Løvstrand;
Nadeau, Marie-Josee.
(2023)
RADIOCARBON STEP-COMBUSTION OXIDATION METHOD and FTIR ANALYSIS of TRONDHEIM CaCO<inf>3</inf>PRECIPITATES of ATMOSPHERIC CO<inf>2</inf>SAMPLES: FURTHER INVESTIGATIONS and INSIGHTS.
Radiocarbon: An International Journal of Cosmogenic Isotope Research
Vitenskapelig artikkel
-
Seiler, Martin Thomas;
Grootes, Pieter M;
Svarva, Helene Løvstrand;
Nadeau, Marie-Josee.
(2023)
The Radiocarbon Sample Archive of Trondheim.
Radiocarbon: An International Journal of Cosmogenic Isotope Research
Vitenskapelig artikkel
-
Rzadeczka-Juga, Izabela;
Nadeau, Marie-Josee;
Juga, Pjotr;
Zurbach, Damaris Charlotte Marie;
Grootes, Pieter M;
Svarva, Helene Løvstrand.
(2023)
Unravelling the history of a venetian antiphonary.
Radiocarbon: An International Journal of Cosmogenic Isotope Research
Vitenskapelig artikkel
-
Mathisen, Kjell Marius;
Thun, Terje;
Svarva, Helene Løvstrand.
(2023)
Nye dendrokronologiske dateringer fra Gudbrandsdalen og Valdres.
Årbok - Foreningen til norske fortidsminnesmerkers bevaring
Vitenskapelig artikkel
2022
-
Ljungqvist, Fredrik Charpentier;
Seim, Andrea;
Tegel, Willy;
Krusic, Paul J.;
Baittinger, Claudia;
Belingard, Christelle.
(2022)
Regional Patterns of Late Medieval and Early Modern European Building Activity Revealed by Felling Dates.
Frontiers in Ecology and Evolution
Vitenskapelig artikkel
2021
-
Svarva, Helene Løvstrand.
(2021)
Klimarekonstruksjon og proveniens av
gammelt bygningsmateriale fra Vestlandet.
Populærvitenskapelig kapittel/artikkel
2019
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Seiler, Martin;
Grootes, Pieter Meiert;
Haarsaker, John Øystein;
Lelu, Sylvie;
Rzadeczka-Juga, Izabela;
Stene, Sølvi.
(2019)
Status Report of the Trondheim Radiocarbon Laboratory.
Radiocarbon: An International Journal of Cosmogenic Isotope Research
Vitenskapelig artikkel
-
Svarva, Helene Løvstrand;
Grootes, Pieter Meiert;
Seiler, Martin;
Thun, Terje;
Værnes, Einar;
Nadeau, Marie-Josée.
(2019)
Radiocarbon calibration around AD 1900 from Scots pine (Pinus sylvestris) tree rings from northern Norway.
Radiocarbon: An International Journal of Cosmogenic Isotope Research
Vitenskapelig artikkel
-
Svarva, Helene Løvstrand;
Grootes, Pieter Meiert;
Seiler, Martin;
Stene, Sølvi;
Thun, Terje;
Værnes, Einar.
(2019)
The 1953-1965 rise in atmospheric bomb 14C in central Norway.
Radiocarbon: An International Journal of Cosmogenic Isotope Research
Vitenskapelig artikkel
2018
-
Thun, Terje;
Svarva, Helene Løvstrand.
(2018)
Tree-ring growth shows that the significant population decline in Norway began before the Black Death.
Dendrochronologia
Vitenskapelig artikkel
-
Svarva, Helene Løvstrand;
Thun, Terje;
Kirchhefer, Andreas;
Nesje, Atle.
(2018)
Little Ice Age summer temperatures in Western Norway from a 700-year tree-ring chronology.
The Holocene
Vitenskapelig artikkel
-
Svarva, Helene Løvstrand;
Thun, Terje.
(2018)
Dendrokronologisk analyse av kornkistene i Romsdal.
Populærvitenskapelig kapittel/artikkel
2016
-
Thun, Terje;
Stornes, Jan Michael;
Bartholin, Thomas Seip;
Svarva, Helene Løvstrand.
(2016)
Dendrokronologi gir stavkirkene nytt liv. Datering og materialanalyse.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Thun, Terje;
Stornes, Jan Michael;
Bartholin, Thomas Seip;
Svarva, Helene Løvstrand.
(2016)
Dendrochronology brings new life to the stave churches. Dating and material analysis.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Thun, Terje;
Svarva, Helene Løvstrand.
(2016)
Dendrochronological analysis of 19 Norwegian grain chests.
Dendrochronologia
Vitenskapelig artikkel
2015
-
Cook, Edward R.;
Saeger, Richard;
Kushnir, Yochanan;
Briffa, Keith R.;
Büntgen, Ulf;
Frank, David.
(2015)
Old World megadroughts and pluvials during the Common Era.
Science Advances
Vitenskapelig artikkel
-
Nadeau, Marie-Josée;
Værnes, Einar;
Svarva, Helene Løvstrand;
Larsen, Eiliv;
Gulliksen, Steinar;
Klein, Matthias.
(2015)
Status of the "new" AMS facility in Trondheim.
Nuclear Instruments and Methods in Physics Reseach B
Vitenskapelig artikkel
Tidsskriftspublikasjoner
-
Martin, Sarah Louise;
Martin, Michael David;
Seiler, Martin;
Rzadeczka-Juga, Izabela;
Svarva, Helene Løvstrand;
Philippsen, Bente.
(2026)
Determining vertical growth patterns and tissue of maximum age using radiocarbon dating in the long-lived Namib Desert plant Welwitschia mirabilis.
Radiocarbon: An International Journal of Cosmogenic Isotope Research
Vitenskapelig artikkel
-
Collet, Dominik;
White, Sam;
Bremer, Scott;
Brenna, Brita;
Glørstad, Håkon;
Gundersen, Ingar Mørkestøl.
(2025)
The Little Ice Age: The History and Future of a Traveling Concept.
Wiley Interdisciplinary Reviews: Climate Change (WIRESs)
Vitenskapelig artikkel
-
Svarva, Helene Løvstrand;
Grootes, Pieter M.;
Seiler, Martin Thomas;
Nadeau, Marie-Josée.
(2025)
Modeling the contribution of carbon sources using cellulose 14C concentrations in subannual tree ring increments over the 1963 bomb spike.
Radiocarbon: An International Journal of Cosmogenic Isotope Research
Vitenskapelig artikkel
-
Khumalo, Wendy Hlengiwe;
Svarva, Helene Løvstrand;
Zurbach, Damaris Charlotte Marie;
Nadeau, Marie-Josée.
(2024)
Squeaky Clean Cellulose: Comparing Pretreatment Effectiveness on Single Tree Rings and Wooden Laths.
Radiocarbon: An International Journal of Cosmogenic Isotope Research
Vitenskapelig artikkel
-
Santos, Guaciara M.;
Leong, Christopher A.;
Grootes, Pieter Meiert;
Seiler, Martin Thomas;
Svarva, Helene Løvstrand;
Nadeau, Marie-Josee.
(2023)
RADIOCARBON STEP-COMBUSTION OXIDATION METHOD and FTIR ANALYSIS of TRONDHEIM CaCO<inf>3</inf>PRECIPITATES of ATMOSPHERIC CO<inf>2</inf>SAMPLES: FURTHER INVESTIGATIONS and INSIGHTS.
Radiocarbon: An International Journal of Cosmogenic Isotope Research
Vitenskapelig artikkel
-
Seiler, Martin Thomas;
Grootes, Pieter M;
Svarva, Helene Løvstrand;
Nadeau, Marie-Josee.
(2023)
The Radiocarbon Sample Archive of Trondheim.
Radiocarbon: An International Journal of Cosmogenic Isotope Research
Vitenskapelig artikkel
-
Rzadeczka-Juga, Izabela;
Nadeau, Marie-Josee;
Juga, Pjotr;
Zurbach, Damaris Charlotte Marie;
Grootes, Pieter M;
Svarva, Helene Løvstrand.
(2023)
Unravelling the history of a venetian antiphonary.
Radiocarbon: An International Journal of Cosmogenic Isotope Research
Vitenskapelig artikkel
-
Mathisen, Kjell Marius;
Thun, Terje;
Svarva, Helene Løvstrand.
(2023)
Nye dendrokronologiske dateringer fra Gudbrandsdalen og Valdres.
Årbok - Foreningen til norske fortidsminnesmerkers bevaring
Vitenskapelig artikkel
-
Ljungqvist, Fredrik Charpentier;
Seim, Andrea;
Tegel, Willy;
Krusic, Paul J.;
Baittinger, Claudia;
Belingard, Christelle.
(2022)
Regional Patterns of Late Medieval and Early Modern European Building Activity Revealed by Felling Dates.
Frontiers in Ecology and Evolution
Vitenskapelig artikkel
-
Seiler, Martin;
Grootes, Pieter Meiert;
Haarsaker, John Øystein;
Lelu, Sylvie;
Rzadeczka-Juga, Izabela;
Stene, Sølvi.
(2019)
Status Report of the Trondheim Radiocarbon Laboratory.
Radiocarbon: An International Journal of Cosmogenic Isotope Research
Vitenskapelig artikkel
-
Svarva, Helene Løvstrand;
Grootes, Pieter Meiert;
Seiler, Martin;
Thun, Terje;
Værnes, Einar;
Nadeau, Marie-Josée.
(2019)
Radiocarbon calibration around AD 1900 from Scots pine (Pinus sylvestris) tree rings from northern Norway.
Radiocarbon: An International Journal of Cosmogenic Isotope Research
Vitenskapelig artikkel
-
Svarva, Helene Løvstrand;
Grootes, Pieter Meiert;
Seiler, Martin;
Stene, Sølvi;
Thun, Terje;
Værnes, Einar.
(2019)
The 1953-1965 rise in atmospheric bomb 14C in central Norway.
Radiocarbon: An International Journal of Cosmogenic Isotope Research
Vitenskapelig artikkel
-
Thun, Terje;
Svarva, Helene Løvstrand.
(2018)
Tree-ring growth shows that the significant population decline in Norway began before the Black Death.
Dendrochronologia
Vitenskapelig artikkel
-
Svarva, Helene Løvstrand;
Thun, Terje;
Kirchhefer, Andreas;
Nesje, Atle.
(2018)
Little Ice Age summer temperatures in Western Norway from a 700-year tree-ring chronology.
The Holocene
Vitenskapelig artikkel
-
Thun, Terje;
Svarva, Helene Løvstrand.
(2016)
Dendrochronological analysis of 19 Norwegian grain chests.
Dendrochronologia
Vitenskapelig artikkel
-
Cook, Edward R.;
Saeger, Richard;
Kushnir, Yochanan;
Briffa, Keith R.;
Büntgen, Ulf;
Frank, David.
(2015)
Old World megadroughts and pluvials during the Common Era.
Science Advances
Vitenskapelig artikkel
-
Nadeau, Marie-Josée;
Værnes, Einar;
Svarva, Helene Løvstrand;
Larsen, Eiliv;
Gulliksen, Steinar;
Klein, Matthias.
(2015)
Status of the "new" AMS facility in Trondheim.
Nuclear Instruments and Methods in Physics Reseach B
Vitenskapelig artikkel
Del av bok/rapport
-
Philippsen, Bente;
Svarva, Helene Løvstrand.
(2025)
Tidens spor i hvalross, sjakkbrikker og stavkirker/Traces of Time in Walrus Bone, Chess Pieces and Stave Churches.
Annet
-
Svarva, Helene Løvstrand;
Hjelen, Ola;
Borgen, Linn Willetts.
(2024)
Dateringsanalyser av bygningsmaterialer i Rødven stavkirke.
Faglig kapittel
-
Svarva, Helene Løvstrand.
(2021)
Klimarekonstruksjon og proveniens av
gammelt bygningsmateriale fra Vestlandet.
Populærvitenskapelig kapittel/artikkel
-
Svarva, Helene Løvstrand;
Thun, Terje.
(2018)
Dendrokronologisk analyse av kornkistene i Romsdal.
Populærvitenskapelig kapittel/artikkel
-
Thun, Terje;
Stornes, Jan Michael;
Bartholin, Thomas Seip;
Svarva, Helene Løvstrand.
(2016)
Dendrokronologi gir stavkirkene nytt liv. Datering og materialanalyse.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
-
Thun, Terje;
Stornes, Jan Michael;
Bartholin, Thomas Seip;
Svarva, Helene Løvstrand.
(2016)
Dendrochronology brings new life to the stave churches. Dating and material analysis.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Formidling
2025
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Vitenskapelig foredragGrootes, Pieter M; Svarva, Helene Løvstrand; Seiler, Martin; Nadeau, Marie-Josée; Philippsen, Bente. (2025) The 1950s bomb-C-14-peak. 25th Radiocarbon Conference , Krakow 29.06.2025 - 04.07.2025
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Vitenskapelig foredragSvarva, Helene Løvstrand. (2025) Climate histories from trees in Scandinavia. The Future of Past Climate: learning from the Nordic Little Ice Age , Osllo 02.06.2025 - 03.06.2025
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Faglig foredragCollet, Dominik; White, Sam; Svarva, Helene Løvstrand. (2025) The Nordic Little Ice Age (1300-1900) lessons from past climate change (NORLIA). Lunch seminar at Centre for Advanced Study (CAS) , Oslo 26.05.2025 - 26.05.2025
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Vitenskapelig foredragSvarva, Helene Løvstrand; Grootes, Pieter Meiert; Seiler, Martin Thomas; Nadeau, Marie-Josée; Philippsen, Bente. (2025) Variation in bomb radiocarbon in trees along a N-S transect in Norway. 25th Radiocarbon Conference , Kraków 29.06.2025 - 04.07.2025
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Vitenskapelig foredragSvarva, Helene Løvstrand; Grootes, Pieter Meiert; Seiler, Martin Thomas; Nadeau, Marie-Josée; Philippsen, Bente. (2025) Sub-annual variation in tree cellulose radiocarbon in AD 993/994 and AD 1054/1055. 25th Radiocarbon Conference , Kraków 29.06.2025 - 04.07.2025
2024
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Vitenskapelig foredragSvarva, Helene Løvstrand. (2024) Dateringsanalyser av bygningsmaterialer i Eidsborg Stavkirke utført 2023/2024. Seminar om middelalderbygninger i tre , Oslo 22.11.2024 - 22.11.2024
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Faglig foredragKhumalo, Wendy Hlengiwe; Kallevik, Matias; Svarva, Helene Løvstrand; Nadeau, Marie-Josée; Speed, James David Mervyn; Collet, Dominik. (2024) On the margins of agriculture - regional responses to 18th century crises in Norway. Nordic Climate History , Oslo 23.05.2024 - 24.05.2024
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Faglig foredragSeiler, Martin Thomas; Philippsen, Bente; Svarva, Helene Løvstrand; Khumalo, Wendy Hlengiwe; Kunisch, Erin Hye Soo; Ramallo, Patxi Perez. (2024) Atomer avslører kosthold i forhistorien - og kanskje også din?. Researchers' Night 2024 , Trondheim 27.09.2024 -
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Vitenskapelig foredragSeiler, Martin Thomas; Svarva, Helene Løvstrand; Nadeau, Marie-Josée; Khumalo, Wendy Hlengiwe; Philippsen, Bente; Grootes, Pieter Meiert. (2024) Tree-ring C-14 origin seen through the Bombspike magnifying glass. 4th International Radiocarbon in the Environment Conference , Lecce 22.09.2024 - 27.09.2024
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Vitenskapelig foredragKhumalo, Wendy Hlengiwe; Collet, Dominik; Svarva, Helene Løvstrand. (2024) A multiproxy comparison of scots pine in Norway. European Geosciences Union General Assembly 2024 , Vienna 04.04.2024 -
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Faglig foredragSvarva, Helene Løvstrand. (2024) Dendrochronological methods and applications. The 21st international course on wood conservation technology - ICWCT 2024 , Trondheim 19.06.2024 -
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Faglig foredragSvarva, Helene Løvstrand. (2024) Karbondatering og dendrokronologi. UiB archaeology fieldcourse 11.04.2024 -
2023
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Vitenskapelig foredragKhumalo, Wendy Hlengiwe; Kallevik, Matias; Collet, Dominik; Svarva, Helene Løvstrand; Nadeau, Marie-Josée. (2023) On the margins of agriculture – regional responses to 18th century crises in Norway. 12th European Society for Environmental History Conference , Bern, Switzerland 21.08.2023 - 25.08.2023
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Faglig foredragSvarva, Helene Løvstrand. (2023) Karbondatering og dendrokronologi. UiB archaeology fieldcourse 13.04.2023 -
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Vitenskapelig foredragSvarva, Helene Løvstrand. (2023) Dendrokronologi på stavkirkene - metoder og resultater. Nordisk dendrokonferanse 2023 18.10.2023 - 20.10.2023
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Vitenskapelig foredragSvarva, Helene Løvstrand. (2023) Byggestansen på 1300-tallet. Nordisk dendrokonferanse 2023 18.10.2023 - 20.10.2023
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Faglig foredrag
2022
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Vitenskapelig foredragNadeau, Marie-Josee; Petersen, Anna Helena; Sæhle, Ingeborg; Svarva, Helene Løvstrand; Seiler, Martin Thomas. (2022) A case of mysterious identity: one of the earliest churches of medieval Trondheim, Norway. 24th Radiocarbon and 10th Radiocarbon & Archaeology Conferences , Zürich 11.09.2022 - 16.09.2022
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PosterNadeau, Marie-Josee; Zurbach, Damaris; Rzadeczka-Juga, Izabela; Opheim-Larsen, K; Svarva, Helene Løvstrand; Seiler, Martin Thomas. (2022) Viking or hippie? A leather bag found in a bog in southern Norway. 24th Radiocarbon and 10th Radiocarbon & Archaeology Conferences , Zürich 11.09.2022 - 16.09.2022
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Vitenskapelig foredragRzadeczka-Juga, Izabela; Zurbach, Damaris; Juga, Pjotr; Nadeau, Marie-Josee; Svarva, Helene Løvstrand; Seiler, Martin Thomas. (2022) Unraveling the history of a Venetian antiphonary. 24th Radiocarbon and 10th Radiocarbon & Archaeology Conferences , Zürich 11.09.2022 - 16.09.2022
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PosterSeiler, Martin; Rzadeczka-Juga, Izabela; Svarva, Helene Løvstrand; Grootes, Pieter Meiert; Khumalo, Wendy; Nadeau, Marie-Josée. (2022) Variation of 14C results from different samples in an archaeological context. 24th Radiocarbon and 10th Radiocarbon & Archaeology Conferences , Zürich 11.09.2022 - 16.09.2022
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Faglig foredragSeiler, Martin; Svarva, Helene Løvstrand; Khumalo, Wendy. (2022) Radioaktivitet som datostempel – bli med på radiokarbonlaboratoriet. Researchers' Night 2022 , Trondheim 30.09.2022 -
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Faglig foredragSvarva, Helene Løvstrand. (2022) Dendrokronologi: Metode - anvendelse. Kurs i dendro-undersøking , Valdres 25.08.2022 - 26.08.2022
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Vitenskapelig foredragSvarva, Helene Løvstrand; Grootes, P M; Seiler, Martin; Nadeau, Marie-Josee. (2022) Sub-annual 14C in Norwegian trees for the period 1951-1965 - influence by location?. 24th Radiocarbon Conference. 10th 14C & Archaeology Conference , Zurich 11.09.2022 - 16.09.2022
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PosterKhumalo, Wendy Hlengiwe; Svarva, Helene Løvstrand; Zurbach, Damaris; Nadeau, Marie-Josee. (2022) Squeaky clean cellulose for different applications. 24th Radiocarbon – 10th 14C & Archaeological International Conferences 10.09.2022 - 16.09.2022
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Faglig foredragSvarva, Helene Løvstrand. (2022) Dendrokronologi - metode og anvendelse. Fagdag dendrokronologi , Skudeneshavn 28.09.2022 - 29.09.2022
2021
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Faglig foredragSeiler, Martin; Svarva, Helene Løvstrand. (2021) 14C datering og dendrokronologi. Lærerutdanning studier 02.11.2021 - 02.11.2021
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Faglig foredragSvarva, Helene Løvstrand. (2021) Karbondatering - prøveuttak, forbehandling og resultater. Feltarkeologi masterstudenter UiB 23.04.2021 - 23.04.2021
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Faglig foredragThun, Terje; Svarva, Helene Løvstrand. (2021) Dendrokronolgi - metode og anvendelse. Kunsthistorie studier 28.09.2021 - 28.09.2021
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Vitenskapelig foredragSvarva, Helene Løvstrand; Grootes, Pieter Meiert; Seiler, Martin; Nadeau, Marie-Josée. (2021) Modelling the contribution of carbon sources from sub-annual 14C measurements in tree rings. 3rd International Radiocarbon in the Environment Conference 05.07.2021 - 09.07.2021
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PosterSvarva, Helene Løvstrand; Grootes, Pieter Meiert; Seiler, Martin; Zurbach, Damaris; Nadeau, Marie-Josée. (2021) Cleaning efficiency of cellulose pretreatment for high-precision radiocarbon measurements. The 15th Iinternational Conference on Accelerator Mass Spectrometry 15.11.2021 - 19.11.2021
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Vitenskapelig foredragSeiler, Martin; Svarva, Helene Løvstrand; Nadeau, Marie-Josée. (2021) Radiocarbon Measurement of Precipitated Atmospheric Samples from 1960-1980. 3rd International Radiocarbon in the Environment Conference , Gliwice/online 05.07.2021 - 09.07.2021
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Faglig foredragSeiler, Martin; Svarva, Helene Løvstrand. (2021) Fra utgraving til laboratoriet: Datering av arkeologiske gjenstander. Researchers' night 2021 , Trondheim 24.09.2021 -
2020
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Faglig foredragSvarva, Helene Løvstrand. (2020) Årringer og klima. Fagdag på Melhus Prestegårdslåna , Prestegårdslåna på Melhus, Trøndelag 04.09.2020 - 04.09.2020
2019
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Faglig foredragSeiler, Martin; Svarva, Helene Løvstrand; Værnes, Einar; Nadeau, Marie-Josée. (2019) Hvor gammelt er egentlig materialet? – Besøk radiokarbonlaboratoriet. Researchers' Night 2019 , Trondheim 27.09.2019 - 27.09.2019
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IntervjuSvarva, Helene Løvstrand; Thun, Terje; Arntsen, Øyvind. (2019) Historisk klimakrise og årringer. Museum NRK P2 Museum NRK P2 [null] 12.10.2019
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IntervjuTveter, Nina Elisabeth; Nilsen, Kjersti; Thun, Terje; Svarva, Helene Løvstrand. (2019) Stavkirkene i Norge er eldre enn antatt. Gemini Gemini [null] 31.10.2019
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Faglig foredragSvarva, Helene Løvstrand. (2019) National Laboratory for Age Determination. Torsdagsseminar Naturhistorie 21.11.2019 - 21.11.2019
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Faglig foredrag
2018
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PosterSvarva, Helene Løvstrand; Grootes, Pieter Meiert; Haarsaker, John Øystein; Lelu, Sylvie; Nadeau, Marie-Josée; Seiler, Martin. (2018) Radiocarbon calibration around 1900 AD and a Scots pine tree (Pinus Sylvestris L.) from Northern Norway. 23rd International Radiocarbon Conference , Trondheim 17.06.2018 - 22.06.2018
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Vitenskapelig foredragSvarva, Helene Løvstrand; Haarsaker, John Øystein; Lelu, Sylvie; Nadeau, Marie-Josée; Seiler, Martin; Stene, Sølvi. (2018) The 1952-1965 rise in atmospheric bomb 14C in a Trondheim tree. 23rd International Radiocarbon Conference , Trondheim 17.06.2018 - 22.06.2018
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PosterSeiler, Martin; Grootes, Pieter Meiert; Haarsaker, John Øystein; Lelu, Sylvie; Rzadeczka-Juga, Izabela; Stene, Sølvi. (2018) Status Report of the Trondheim Radiocarbon Laboratory. 23rd International Radiocarbon Conference , Trondheim 17.06.2018 - 22.06.2018
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Faglig foredragSvarva, Helene Løvstrand. (2018) The annual rings of trees. Medlemsmøte Norsk Botanisk Forening Trøndelagsavdelinga 05.11.2018 - 05.11.2018
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PosterVærnes, Einar; Grootes, Pieter Meiert; Haarsaker, John Øystein; Lelu, Sylvie; Nadeau, Marie-Josée; Seiler, Martin. (2018) δ13C measurements on HOxII reduced by TOR. 23rd International Radiocarbon Conference , Trondheim 17.06.2018 - 22.06.2018
2017
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PosterSvarva, Helene Løvstrand; Thun, Terje. (2017) Climate signals in tree rings from Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies Karst.) in southern and central Norway. EuroDendro2017 , Tartu 06.09.2017 - 10.09.2017
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Vitenskapelig foredragSvarva, Helene Løvstrand. (2017) Dendroclimatology in western Norway. EuroDendro 2017 , Tartu 06.09.2017 - 10.09.2017
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Faglig foredragSvarva, Helene Løvstrand. (2017) 600 years of summer temperatures in western Norway. Kvikklunsj , Kalvskinnet 27.11.2017 - 27.11.2017
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PosterSvarva, Helene Løvstrand; Nadeau, Marie-Josée. (2017) An inconsistency in the radiocarbon calibration curve around 1900 AD and its relevance to the estimation of marine reservoir ages for the Norwegian Sea. 2nd Radiocarbon in the Environment Conference , Debrecen 03.07.2017 - 07.07.2017
2016
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PosterSvarva, Helene Løvstrand; Thun, Terje. (2016) Climate signals in tree-rings from the Norwegian stave churches. 32nd Nordic Geological Winter Meeting , Helsinki 13.01.2016 - 15.01.2016
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PosterSvarva, Helene Løvstrand; Anjar, Johanna; Larsen, Eiliv; Nadeau, Marie-Josée; Seiler, Martin; Værnes, Einar. (2016) Trondheim radiocarbon laboratory - performance results and future plans. 32nd Nordic Geological Winter Meeting , Helsinki 13.01.2016 - 15.01.2016
2014
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Faglig foredragSvarva, Helene Løvstrand. (2014) Furuskogen som "gjenoppstod" i Jotunheimen. Medlemsmøte Norsk Botanisk Forening , Suhmhuset, NTNU Vitenskapsmuseet 06.10.2014 - 06.10.2014
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Faglig foredragSvarva, Helene Løvstrand. (2014) Karbon-14 datering. Bygningsvernkongressen 2014 , Norsk folkemuseum, Oslo 03.09.2014 - 05.09.2014
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Faglig foredragNadeau, Marie-Josée; Vaernes, Einar; Svarva, Helene Løvstrand; Larsen, Eiliv; Gulliksen, Steinar; Klein, Matthias. (2014) Status of the “new” AMS facility in Trondheim. AMS 13th International Conference , Aix-en-Provence 24.08.2014 - 29.08.2014
2013
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Vitenskapelig foredragSvarva, Helene Løvstrand. (2013) Dendroklimatologi i Norge: Klimatisk informasjon i årringer fra gran og furu. Kvikklunsj , Suhmhuset 27.09.2013 - 27.09.2013