Helene Løvstrand Svarva
Publikasjoner
2026
-
Philippsen, Bente;
Svarva, Helene L.;
Seiler, Martin.
(2026)
Radiocarbon dating with cosmic radiation events: problems and unexplored possibilities.
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
Vitenskapelig artikkel
-
Svarva, Helene Løvstrand;
Gunnarson, Björn E.;
Thun, Terje.
(2026)
A record of tree-ring density and reconstruction of April–September temperatures in south-west Norway.
Geografiska Annaler: Series A, Physical Geography
Vitenskapelig artikkel
-
Martin, Sarah Louise;
Martin, Michael David;
Seiler, Martin;
Rzadeczka-Juga, Izabela;
Svarva, Helene Løvstrand;
Philippsen, Bente;
Maggs-Kölling, Gillian;
Marais, Eugene.
(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.
Kapittel i utstillingskatalog
-
Collet, Dominik;
White, Sam;
Bremer, Scott;
Brenna, Brita;
Glørstad, Håkon;
Gundersen, Ingar Mørkestøl;
Huhtamaa, Heli;
Krüger, Kirstin;
Linderholm, Hans W.;
Ljungqvist, Fredrik Charpentier.
(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;
Seiler, Martin Thomas.
(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;
Bernabei, Mauro;
Bonde, Niels;
Borghaerts, Paul;
Couturier, Yann.
(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
2019
-
Seiler, Martin;
Grootes, Pieter Meiert;
Haarsaker, John Øystein;
Lelu, Sylvie;
Rzadeczka-Juga, Izabela;
Stene, Sølvi;
Svarva, Helene Løvstrand;
Thun, Terje;
Værnes, Einar;
Nadeau, Marie-Josée.
(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;
Nadeau, Marie-Josée.
(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
2016
-
Thun, Terje;
Stornes, Jan Michael;
Bartholin, Thomas Seip;
Svarva, Helene Løvstrand.
(2016)
Dendrokronologi gir stavkirkene nytt liv. Datering og materialanalyse.
Vitenskapelig kapittel
-
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
-
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;
Krusic, Paul J.;
Tegel, Willy;
Schrier, Gerard van der;
Andreu-Hayles, Laia.
(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;
Mous, Dirk JW.
(2015)
Status of the "new" AMS facility in Trondheim.
Nuclear Instruments and Methods in Physics Reseach B
Vitenskapelig artikkel
Tidsskriftspublikasjoner
-
Philippsen, Bente;
Svarva, Helene L.;
Seiler, Martin.
(2026)
Radiocarbon dating with cosmic radiation events: problems and unexplored possibilities.
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
Vitenskapelig artikkel
-
Svarva, Helene Løvstrand;
Gunnarson, Björn E.;
Thun, Terje.
(2026)
A record of tree-ring density and reconstruction of April–September temperatures in south-west Norway.
Geografiska Annaler: Series A, Physical Geography
Vitenskapelig artikkel
-
Martin, Sarah Louise;
Martin, Michael David;
Seiler, Martin;
Rzadeczka-Juga, Izabela;
Svarva, Helene Løvstrand;
Philippsen, Bente;
Maggs-Kölling, Gillian;
Marais, Eugene.
(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;
Huhtamaa, Heli;
Krüger, Kirstin;
Linderholm, Hans W.;
Ljungqvist, Fredrik Charpentier.
(2025)
The Little Ice Age: The History and Future of a Traveling Concept.
Wiley Interdisciplinary Reviews: Climate Change (WIRESs)
Vitenskapelig artikkel
-
Seiler, Martin;
Grootes, Pieter Meiert;
Haarsaker, John Øystein;
Lelu, Sylvie;
Rzadeczka-Juga, Izabela;
Stene, Sølvi;
Svarva, Helene Løvstrand;
Thun, Terje;
Værnes, Einar;
Nadeau, Marie-Josée.
(2019)
Status Report of the Trondheim Radiocarbon Laboratory.
Radiocarbon: An International Journal of Cosmogenic Isotope Research
Vitenskapelig artikkel
-
Cook, Edward R.;
Saeger, Richard;
Kushnir, Yochanan;
Briffa, Keith R.;
Büntgen, Ulf;
Frank, David;
Krusic, Paul J.;
Tegel, Willy;
Schrier, Gerard van der;
Andreu-Hayles, Laia.
(2015)
Old World megadroughts and pluvials during the Common Era.
Science Advances
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
-
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;
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
-
Nadeau, Marie-Josée;
Værnes, Einar;
Svarva, Helene Løvstrand;
Larsen, Eiliv;
Gulliksen, Steinar;
Klein, Matthias;
Mous, Dirk JW.
(2015)
Status of the "new" AMS facility in Trondheim.
Nuclear Instruments and Methods in Physics Reseach B
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
-
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;
Seiler, Martin Thomas.
(2023)
Unravelling the history of a venetian antiphonary.
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;
Nadeau, Marie-Josée.
(2019)
The 1953-1965 rise in atmospheric bomb 14C in central Norway.
Radiocarbon: An International Journal of Cosmogenic Isotope Research
Vitenskapelig artikkel
-
Ljungqvist, Fredrik Charpentier;
Seim, Andrea;
Tegel, Willy;
Krusic, Paul J.;
Baittinger, Claudia;
Belingard, Christelle;
Bernabei, Mauro;
Bonde, Niels;
Borghaerts, Paul;
Couturier, Yann.
(2022)
Regional Patterns of Late Medieval and Early Modern European Building Activity Revealed by Felling Dates.
Frontiers in Ecology and Evolution
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
-
Mathisen, Kjell Marius;
Thun, Terje;
Svarva, Helene Løvstrand.
(2023)
Nye dendrokronologiske dateringer fra Gudbrandsdalen og Valdres.
Årbok - Foreningen til norske fortidsminnesmerkers bevaring
Vitenskapelig artikkel
-
Thun, Terje;
Svarva, Helene Løvstrand.
(2016)
Dendrochronological analysis of 19 Norwegian grain chests.
Dendrochronologia
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.
Kapittel i utstillingskatalog
-
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
-
Svarva, Helene Løvstrand;
Thun, Terje.
(2018)
Dendrokronologisk analyse av kornkistene i Romsdal.
Populærvitenskapelig kapittel
-
Thun, Terje;
Stornes, Jan Michael;
Bartholin, Thomas Seip;
Svarva, Helene Løvstrand.
(2016)
Dendrokronologi gir stavkirkene nytt liv. Datering og materialanalyse.
Vitenskapelig kapittel
-
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
Formidling
2026
-
ForedragSvarva, Helene Løvstrand. (2026) Dendrochronology and dating methods. The International Course on Wood Conservation Technology
-
ForedragSvarva, Helene Løvstrand. (2026) Dendrokronologi og radiokarbondateirng. Gjesteforelesning for arkeologi masterstudenteer
2025
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KonferanseforedragGrootes, Pieter M; Svarva, Helene Løvstrand; Seiler, Martin; Nadeau, Marie-Josée; Philippsen, Bente. (2025) The 1950s bomb-C-14-peak. 25th Radiocarbon Conference
-
KonferanseforedragSvarva, Helene Løvstrand. (2025) Climate histories from trees in Scandinavia. The Future of Past Climate: learning from the Nordic Little Ice Age
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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)
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KonferanseforedragSvarva, 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
-
KonferanseforedragSvarva, 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
2024
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KonferanseforedragSvarva, Helene Løvstrand. (2024) Dateringsanalyser av bygningsmaterialer i Eidsborg Stavkirke utført 2023/2024. Seminar om middelalderbygninger i tre
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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
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ForedragSeiler, Martin Thomas; Philippsen, Bente; Svarva, Helene Løvstrand; Khumalo, Wendy Hlengiwe; Kunisch, Erin Hye Soo; Perez Ramallo, Patxi. (2024) Atomer avslører kosthold i forhistorien - og kanskje også din?. Researchers' Night 2024
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KonferanseforedragSeiler, 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
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KonferanseforedragKhumalo, Wendy Hlengiwe; Collet, Dominik; Svarva, Helene Løvstrand. (2024) A multiproxy comparison of scots pine in Norway. European Geosciences Union General Assembly 2024
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ForedragSvarva, Helene Løvstrand. (2024) Dendrochronological methods and applications. The 21st international course on wood conservation technology - ICWCT 2024
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Foredrag
2023
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KonferanseforedragKhumalo, 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
-
Foredrag
-
KonferanseforedragSvarva, Helene Løvstrand. (2023) Dendrokronologi på stavkirkene - metoder og resultater. Nordisk dendrokonferanse 2023
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Konferanseforedrag
-
Foredrag
2022
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KonferanseforedragNadeau, 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
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KonferanseposterNadeau, 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
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KonferanseforedragRzadeczka-Juga, Izabela; Zurbach, Damaris; Juga, Pjotr; Nadeau, Marie-Josee; Svarva, Helene Løvstrand; Seiler, Martin Thomas; Grootes, Pieter Meiert. (2022) Unraveling the history of a Venetian antiphonary. 24th Radiocarbon and 10th Radiocarbon & Archaeology Conferences
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KonferanseposterSeiler, 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
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ForedragSeiler, Martin; Svarva, Helene Løvstrand; Khumalo, Wendy. (2022) Radioaktivitet som datostempel – bli med på radiokarbonlaboratoriet. Researchers' Night 2022
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Foredrag
-
KonferanseforedragSvarva, 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
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KonferanseposterKhumalo, Wendy Hlengiwe; Svarva, Helene Løvstrand; Zurbach, Damaris; Nadeau, Marie-Josee. (2022) Squeaky clean cellulose for different applications. 24th Radiocarbon – 10th 14C & Archaeological International Conferences
-
Foredrag
2021
-
ForedragSeiler, Martin; Svarva, Helene Løvstrand. (2021) 14C datering og dendrokronologi. Lærerutdanning studier
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ForedragSvarva, Helene Løvstrand. (2021) Karbondatering - prøveuttak, forbehandling og resultater. Feltarkeologi masterstudenter UiB
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ForedragThun, Terje; Svarva, Helene Løvstrand. (2021) Dendrokronolgi - metode og anvendelse. Kunsthistorie studier
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KonferanseforedragSvarva, 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
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KonferanseposterSvarva, 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
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KonferanseforedragSeiler, Martin; Svarva, Helene Løvstrand; Nadeau, Marie-Josée. (2021) Radiocarbon Measurement of Precipitated Atmospheric Samples from 1960-1980. 3rd International Radiocarbon in the Environment Conference
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ForedragSeiler, Martin; Svarva, Helene Løvstrand. (2021) Fra utgraving til laboratoriet: Datering av arkeologiske gjenstander. Researchers' night 2021
2020
-
Foredrag
2019
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ForedragSeiler, Martin; Svarva, Helene Løvstrand; Værnes, Einar; Nadeau, Marie-Josée. (2019) Hvor gammelt er egentlig materialet? – Besøk radiokarbonlaboratoriet. Researchers' Night 2019
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Intervju
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IntervjuTveter, Nina Elisabeth; Nilsen, Kjersti; Thun, Terje; Svarva, Helene Løvstrand. (2019) Stavkirkene i Norge er eldre enn antatt.
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ForedragSvarva, Helene Løvstrand. (2019) National Laboratory for Age Determination. Torsdagsseminar Naturhistorie
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Foredrag
2018
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KonferanseposterSvarva, Helene Løvstrand; Grootes, Pieter Meiert; Haarsaker, John Øystein; Lelu, Sylvie; Nadeau, Marie-Josée; Seiler, Martin; Stene, Sølvi; Thun, Terje; Værnes, Einar. (2018) Radiocarbon calibration around 1900 AD and a Scots pine tree (Pinus Sylvestris L.) from Northern Norway. 23rd International Radiocarbon Conference
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KonferanseforedragSvarva, Helene Løvstrand; Haarsaker, John Øystein; Lelu, Sylvie; Nadeau, Marie-Josée; Seiler, Martin; Stene, Sølvi; Thun, Terje; Værnes, Einar; Grootes, Pieter Meiert. (2018) The 1952-1965 rise in atmospheric bomb 14C in a Trondheim tree. 23rd International Radiocarbon Conference
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KonferanseposterSeiler, Martin; Grootes, Pieter Meiert; Haarsaker, John Øystein; Lelu, Sylvie; Rzadeczka-Juga, Izabela; Stene, Sølvi; Svarva, Helene Løvstrand; Thun, Terje; Værnes, Einar; Nadeau, Marie-Josée. (2018) Status Report of the Trondheim Radiocarbon Laboratory. 23rd International Radiocarbon Conference
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ForedragSvarva, Helene Løvstrand. (2018) The annual rings of trees. Medlemsmøte Norsk Botanisk Forening Trøndelagsavdelinga
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KonferanseposterVærnes, Einar; Grootes, Pieter Meiert; Haarsaker, John Øystein; Lelu, Sylvie; Nadeau, Marie-Josée; Seiler, Martin; Stene, Sølvi; Svarva, Helene Løvstrand; Thun, Terje. (2018) δ13C measurements on HOxII reduced by TOR. 23rd International Radiocarbon Conference
2017
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KonferanseposterSvarva, 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
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Konferanseforedrag
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Foredrag
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KonferanseposterSvarva, 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
2016
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KonferanseposterSvarva, Helene Løvstrand; Thun, Terje. (2016) Climate signals in tree-rings from the Norwegian stave churches. 32nd Nordic Geological Winter Meeting
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KonferanseposterSvarva, 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
2014
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ForedragSvarva, Helene Løvstrand. (2014) Furuskogen som "gjenoppstod" i Jotunheimen. Medlemsmøte Norsk Botanisk Forening
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Foredrag
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ForedragNadeau, Marie-Josée; Vaernes, Einar; Svarva, Helene Løvstrand; Larsen, Eiliv; Gulliksen, Steinar; Klein, Matthias; Mous, DJW. (2014) Status of the “new” AMS facility in Trondheim. AMS 13th International Conference
2013
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KonferanseforedragSvarva, Helene Løvstrand. (2013) Dendroklimatologi i Norge: Klimatisk informasjon i årringer fra gran og furu. Kvikklunsj