Format
Sort by
Items per page

Send to

Choose Destination

Search results

Items: 21

1.

Author Correction: Solar superstorm of AD 774 recorded subannually by Arctic tree rings.

Uusitalo J, Arppe L, Hackman T, Helama S, Kovaltsov G, Mielikäinen K, Mäkinen H, Nöjd P, Palonen V, Usoskin I, Oinonen M.

Nat Commun. 2019 Mar 15;10(1):1292. doi: 10.1038/s41467-019-09214-w.

2.

Solar superstorm of AD 774 recorded subannually by Arctic tree rings.

Uusitalo J, Arppe L, Hackman T, Helama S, Kovaltsov G, Mielikäinen K, Mäkinen H, Nöjd P, Palonen V, Usoskin I, Oinonen M.

Nat Commun. 2018 Aug 28;9(1):3495. doi: 10.1038/s41467-018-05883-1. Erratum in: Nat Commun. 2019 Mar 15;10(1):1292.

3.

Arctic moistening provides negative feedbacks to riparian plants.

Helama S, Arppe L, Mielikäinen K, Oinonen M.

Glob Chang Biol. 2018 Jun;24(6):2691-2707. doi: 10.1111/gcb.14058. Epub 2018 Feb 13.

PMID:
29436149
4.

Volcanic dust veils from sixth century tree-ring isotopes linked to reduced irradiance, primary production and human health.

Helama S, Arppe L, Uusitalo J, Holopainen J, Mäkelä HM, Mäkinen H, Mielikäinen K, Nöjd P, Sutinen R, Taavitsainen JP, Timonen M, Oinonen M.

Sci Rep. 2018 Jan 22;8(1):1339. doi: 10.1038/s41598-018-19760-w.

5.

Tree height strongly affects estimates of water-use efficiency responses to climate and CO2 using isotopes.

Brienen RJW, Gloor E, Clerici S, Newton R, Arppe L, Boom A, Bottrell S, Callaghan M, Heaton T, Helama S, Helle G, Leng MJ, Mielikäinen K, Oinonen M, Timonen M.

Nat Commun. 2017 Aug 18;8(1):288. doi: 10.1038/s41467-017-00225-z.

6.

Old World megadroughts and pluvials during the Common Era.

Cook ER, Seager R, Kushnir Y, Briffa KR, Büntgen U, Frank D, Krusic PJ, Tegel W, van der Schrier G, Andreu-Hayles L, Baillie M, Baittinger C, Bleicher N, Bonde N, Brown D, Carrer M, Cooper R, Čufar K, Dittmar C, Esper J, Griggs C, Gunnarson B, Günther B, Gutierrez E, Haneca K, Helama S, Herzig F, Heussner KU, Hofmann J, Janda P, Kontic R, Köse N, Kyncl T, Levanič T, Linderholm H, Manning S, Melvin TM, Miles D, Neuwirth B, Nicolussi K, Nola P, Panayotov M, Popa I, Rothe A, Seftigen K, Seim A, Svarva H, Svoboda M, Thun T, Timonen M, Touchan R, Trotsiuk V, Trouet V, Walder F, Ważny T, Wilson R, Zang C.

Sci Adv. 2015 Nov 6;1(10):e1500561. doi: 10.1126/sciadv.1500561. eCollection 2015 Nov.

7.

LA-ICP-MS-derived U-concentrations and microstructural domains within biogenic aragonite of Arctica islandica shell.

Helama S, Heikkilä P, Rinne K, Nielsen JK, Nielsen JK.

Environ Monit Assess. 2015 May;187(5):260. doi: 10.1007/s10661-015-4495-5. Epub 2015 Apr 17.

PMID:
25877646
8.

[Finnish suicide mortality from 1950 to 2009 in an European comparison].

Holopainen J, Helama S, Partonen T.

Duodecim. 2014;130(15):1536-44. Finnish.

PMID:
25211824
9.

Oak decline analyzed using intraannual radial growth indices, δ(13)C series and climate data from a rural hemiboreal landscape in southwesternmost Finland.

Helama S, Läänelaid A, Raisio J, Mäkelä HM, Hilasvuori E, Jungner H, Sonninen E.

Environ Monit Assess. 2014 Aug;186(8):4697-708. doi: 10.1007/s10661-014-3731-8. Epub 2014 Apr 12.

PMID:
24729178
10.

Variation and seasonal patterns of suicide mortality in Finland and Sweden since the 1750s.

Holopainen J, Helama S, Björkenstam C, Partonen T.

Environ Health Prev Med. 2013 Nov;18(6):494-501. doi: 10.1007/s12199-013-0348-4. Epub 2013 Jul 9.

11.

Does diurnal temperature range influence seasonal suicide mortality? Assessment of daily data of the Helsinki metropolitan area from 1973 to 2010.

Holopainen J, Helama S, Partonen T.

Int J Biometeorol. 2014 Aug;58(6):1039-45. doi: 10.1007/s00484-013-0689-0. Epub 2013 Jun 18.

PMID:
23775128
12.

Temperature-associated suicide mortality: contrasting roles of climatic warming and the suicide prevention program in Finland.

Helama S, Holopainen J, Partonen T.

Environ Health Prev Med. 2013 Sep;18(5):349-55. doi: 10.1007/s12199-013-0329-7. Epub 2013 Feb 5.

13.

Plant phenological records in northern Finland since the 18th century as retrieved from databases, archives and diaries for biometeorological research.

Holopainen J, Helama S, Lappalainen H, Gregow H.

Int J Biometeorol. 2013 May;57(3):423-35. doi: 10.1007/s00484-012-0568-0. Epub 2012 Jun 29.

PMID:
22744803
14.

Quantifications of dendrochronological information from contrasting microdensitometric measuring circumstances of experimental wood samples.

Helama S, Bégin Y, Vartiainen M, Peltola H, Kolström T, Meriläinen J.

Appl Radiat Isot. 2012 Jun;70(6):1014-23. doi: 10.1016/j.apradiso.2012.03.025. Epub 2012 Mar 23.

PMID:
22480911
15.

Causes and consequences of past and projected Scandinavian summer temperatures, 500-2100 AD.

Büntgen U, Raible CC, Frank D, Helama S, Cunningham L, Hofer D, Nievergelt D, Verstege A, Timonen M, Stenseth NC, Esper J.

PLoS One. 2011;6(9):e25133. doi: 10.1371/journal.pone.0025133. Epub 2011 Sep 22.

16.

Food availability at birth limited reproductive success in historical humans.

Rickard IJ, Holopainen J, Helama S, Helle S, Russell AF, Lummaa V.

Ecology. 2010 Dec;91(12):3515-25.

PMID:
21302824
17.

Evolutionary ecology of human birth sex ratio under the compound influence of climate change, famine, economic crises and wars.

Helle S, Helama S, Lertola K.

J Anim Ecol. 2009 Nov;78(6):1226-33. doi: 10.1111/j.1365-2656.2009.01598.x. Epub 2009 Aug 28.

PMID:
19719518
18.
19.
20.

Compound response of marine and terrestrial ecosystems to varying climate: pre-anthropogenic perspective from bivalve shell growth increments and tree-rings.

Helama S, Schöne BR, Kirchhefer AJ, Nielsen JK, Rodland DL, Janssen R.

Mar Environ Res. 2007 Apr;63(3):185-99. Epub 2006 Sep 5.

PMID:
17045331
21.

Plant phenological data and tree-rings as palaeoclimate indicators in south-west Finland since AD 1750.

Holopainen J, Helama S, Timonen M.

Int J Biometeorol. 2006 Sep;51(1):61-72. Epub 2006 Jun 20.

PMID:
16786325

Supplemental Content

Loading ...
Support Center