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Årsringarna berättar om klimathistoria - Luonnonvarakeskus

In addition to waning enthusiasm, wartime hardships and crop failures had caused gaps in recording observations during the 18th and 19th centuries. The 2018-01-22 · Samuli Helama & Mauri Timonen. Laboratory of Chronology, Finnish Museum of Natural History, Gustaf Hällströmin katu 2, University of Helsinki, Helsinki, Finland. Samuli Helama Division of Geology and Palaeontology Department of Geology P. O. Box 64 FIN-00014 University of Helsinki, Finland ACADEMIC DISSERTATION To be presented, with the permission of the Faculty of Science of the University of Helsinki, for public criticism in the small auditorium E204 of Physicum, Kumpula, Samuli HELAMA 1* and Ilmari VALOVIRTA 2 1 Fi ns h or et R ac I u ,N U P .O B x 169 30 v m l d 2 Fi nsh M u em ofN atr lHy ,P .O B x 17 0 4 U v k d ABSTRACT Margaritifera margaritifera Three shells of the freshwater pearl mussel ((Linnaeus 1758)) were studied using sclerochronological methods.

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BC. The growth ring calendar is an important indicator of global climate change," says researcher Samuli Helama from Luke. The samples in the recent study were dated with the help of the growth ring Samuli Helama Climatic Research Unit, University of East Anglia, Norwich, NR4 7TJ, UK Phil D. Jones & Keith R. Briffa Department of Meteorology, Center of Excellence for Climate Change Research, Stefan Norrgård and Samuli Helama. The Holocene 2019 29: 6, 953-963 Download Citation. Request PDF | On Apr 4, 2017, Samuli Helama and others published Limited Late Antique cooling | Find, read and cite all the research you need on ResearchGate Jari Holopainen • Samuli Helama • Charlotte Bjo¨rkenstam • Timo Partonen Received: 3 April 2013/Accepted: 13 June 2013/Published online: 9 July 2013 The Japanese Society for Hygiene 2013 Abstract Objectives Suicide mortality varies in both the short and long term. Our study examines suicide mortality in Finland and Sweden from the 1750s Hans W. Linderholm 1, Marie Nicolle 2, Pierre Francus 3,19, Konrad Gajewski 4, Samuli Helama 5, Atte Korhola 6, Olga Solomina 7, Zicheng Yu 8, Peng Zhang 1, William J Samuli Helama.

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If you have the appropriate software installed, you can 1 Natural Resources Institute Finland, Eteläranta 55, Rovaniemi, Finland. samuli.helama@luke.fi. 2 Laboratory of Chronology, Finnish Museum of Natural History, Gustaf Hällströmin katu 2, University of Helsinki, Helsinki, Finland.

Kuva kuvas - Samuli Helama - häftad9789518770582

Översikt; Nätverk PUBLICATIONS BY SAMULI HELAMA May, 31st 2011 Articles in refereed scientific journals 1. Helama S., Lindholm M., Timonen M., Meriläinen J. & Eronen M. 2002: The supra-long Scots pine tree-ring record for Finnish Lapland: Part 2, interannual to centennial variability in summer temperatures for 7500 years. The Holocene 12 (6): 681-687. 2. samuli.helama@luke.fi.

Samuli Helama 1 , Laura Arppe 2 , Joonas Uusitalo 2 , Jari Holopainen 3 , Hanna M Mäkelä 4 , Harri Mäkinen 5 , Kari Mielikäinen 5 , Pekka Nöjd 5 , Raimo Sutinen 6 , Jussi-Pekka Taavitsainen 7 , Mauri Timonen 8 , Markku Oinonen 2 Samuli Helama. Climatic Research Unit, University of East Anglia, Norwich, NR4 7TJ, UK. Phil D. Jones & Keith R. Briffa. Department of Meteorology, Center of Excellence for Climate Change Research Historical trends in spring ice breakup for the Aura River in Southwest Finland, AD 1749–2018 - Stefan Norrgård, Samuli Helama, 2019 By Samuli Helama , Stefan Norrgård journals.sagepub.com — AbstractIce breakup (IBU) observations have been recorded for Aura River in Turku, southwest Finland, since the mid-18th century.
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Helaman runot käsittelevät  Itsenäisyyden lyhyt historia. DESC SOURCE. Bok. Helama, Samuli, kirjoittaja. Kustannus HD [2017]. Visa andra versioner (1). Sparad:  De har varit förvånansvärt väl bevarade”, säger Samuli Helama. Prover som tagits från trädens årsringar analyseras på variationerna i  ”Om förhållandena är gynnsamma blir årsringarna breda, medan dålig tillväxt ger smala ringar”, berättar Samuli Helama som arbetar med  till 1610-talets Tornedalen samt förberedande arbete för vidare forskning och studier / av Sture Torikka ; med bidrag av Matti Saarnisto och Samuli Helama.

Helama S., Macias Fauria M., Mielikäinen K., Timonen M. & Eronen M. 2010: Sub-Milankovitch solar forcing of past climates: mid and late Holocene perspectives. Geological Society of America Bulletin 122: 1981-1988. Samuli Helama, DPhil, docent Natural Resources Institute Finland samuli.helama@luke.fi +358 40 801 5047. You might also be interested in. Subscribe to Climate newsletter. 4 Samuli Helama mation originate from indirect estimates of past climate that are climate-sensitive records of geological, glaciological or palaeontological records or historical archives (Bradley, 1999).
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The 2018-01-22 · Samuli Helama & Mauri Timonen. Laboratory of Chronology, Finnish Museum of Natural History, Gustaf Hällströmin katu 2, University of Helsinki, Helsinki, Finland. Samuli Helama Division of Geology and Palaeontology Department of Geology P. O. Box 64 FIN-00014 University of Helsinki, Finland ACADEMIC DISSERTATION To be presented, with the permission of the Faculty of Science of the University of Helsinki, for public criticism in the small auditorium E204 of Physicum, Kumpula, Samuli HELAMA 1* and Ilmari VALOVIRTA 2 1 Fi ns h or et R ac I u ,N U P .O B x 169 30 v m l d 2 Fi nsh M u em ofN atr lHy ,P .O B x 17 0 4 U v k d ABSTRACT Margaritifera margaritifera Three shells of the freshwater pearl mussel ((Linnaeus 1758)) were studied using sclerochronological methods. Samuli Helama • Birgitte W. Arentoft Olivier Collin-Haubensak • Michael D. Hyslop Charlotte K. Brandstrup • Hanna M. Ma¨kela¨ QinHua Tian • Rob Wilson Dendroclimatic signals deduced from riparian versus upland forest interior pines in North Karelia, Finland Received: 25 April 2013/ Accepted: 6 September 2013 The Ecological Society of Markku Oinonen & Samuli Helama A recent study published in an esteemed academic journal indicates that volcanic eruptions in the mid 500s resulted in an unusually gloomy and cold period. A joint research project of the Chronology Laboratory of the Finnish Museum of Natural History and Natural Resources Institute Finland (Luke) suggests that the years 536 and 541–544 CE were very difficult Samuli Helama, Finnish Forest Research Institute, Rovaniemi Unit, PO Box 16, FI-96301 Rovaniemi, Finland. E-mail: samuli.helama@metla.fi Abstract Geochronological data of the conifer tree rings in a region sensitive to climatic effects of explosive eruptions were analysed for sudden growth reductions in Samuli Helama.

Climatic Change 92:1 (2009), 213–233; Jari Holopainen, Samuli Helama &. Mauri Timmonen, Plant phenological data and tree-  Torikka ; med bidrag av Matti Saarnisto och Samuli Helama. Boken är en detaljrik översikt över folklivet och livsbetingelserna i övre Tornedalen 1539- 1617.> "Tapas","Pranava","Narasimha","Helaman","Chiemi","Mohsin","Koral",. "Rodney" "Samuli","Masakage","Yanis","Janyce","Nga","Odile","Major","Sujeet",.
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Midden: En arkeologisk sopor - Education Resource

Boken är en detaljrik översikt över folklivet och livsbetingelserna i övre Tornedalen 1539- 1617. 1. Human sex ratio at birth at the population level has been suggested to vary according to exogenous stressors such as wars, ambient temperature, ecological disasters and economic crises, but their relative effects on birth sex ratio have not been investigated. Om Hans Linderholm. Forskning Min forskning handlar främst om regionala klimatvariationer i Europa och Asien, från ca.