Results 11 to 20 of about 1,067,691 (309)

Statistical age determination of tree rings. [PDF]

open access: yesPLoS ONE, 2020
Dendrochronology, the study of annual rings formed by trees and woody plants, has important applications in research of climate and environmental phenomena of the past.
Martin Ricker   +3 more
doaj   +2 more sources

Solar superstorm of AD 774 recorded subannually by Arctic tree rings [PDF]

open access: yesNature Communications, 2018
Tree rings retain information of sudden variations of ancient radiocarbon (14C) content, however the origin and exact timing of these events often remain uncertain.
J. Uusitalo   +10 more
doaj   +2 more sources

IntCal20 Tree Rings: An Archaeological Swot Analysis [PDF]

open access: yesRadiocarbon, 2020
ABSTRACTWe undertook a strengths, weaknesses, opportunities, and threats (SWOT) analysis of Northern Hemisphere tree-ring datasets included in IntCal20 in order to evaluate their strategic fit with the demands of archaeological users. Case studies on wiggle-matching single tree rings from timbers in historic buildings and Bayesian modeling of series of
Alex Bayliss   +5 more
openaire   +9 more sources

Energetic impact of reconstructed debris flow on the intensity and duration of growth disturbances in tree rings

open access: yesFrontiers in Earth Science, 2023
A rare study on the quantitative relationship between the energetic impact of debris flows on the intensity and duration of growth disturbances of tree rings was carried out, partly due to a lack of feasible approaches and detailed field evidence.
Xueliang Wang   +15 more
doaj   +1 more source

Olive tree-ring problematic dating: a comparative analysis on Santorini (Greece). [PDF]

open access: yesPLoS ONE, 2013
Olive trees are a classic component of Mediterranean environments and some of them are known historically to be very old. In order to evaluate the possibility to use olive tree-rings for dendrochronology, we examined by various methods the reliability of
Paolo Cherubini   +8 more
doaj   +1 more source

Synchrotron-based X-ray microscopy for assessing elements distribution and speciation in mangrove tree-rings

open access: yesResults in Chemistry, 2021
Micro-X-ray fluorescence (μ-XRF) spectroscopy has been used for dendrochemistry as a high spatial resolution, multi-elemental and non-destructive technique.
Elton Eduardo Novais Alves   +8 more
doaj   +1 more source

Pointer years in the growth of beech trees of the NP "Đerdap" area [PDF]

open access: yesGlasnik Šumarskog Fakulteta: Univerzitet u Beogradu, 2014
This paper defines pointer years and years with distinctive tree rings in the growth of beech in 3 sites (ecological units-EU) of the area of Đerdap, in order to observe the reactions of trees to the effects of various factors of growth.
Stajić Branko
doaj   +1 more source

14C in tree rings in the vicinity of the nuclear facility deployment areas [PDF]

open access: yesNuclear Energy and Technology, 2022
14C is naturally and artificially occurred radionuclide presented in atmosphere. 14C is produced during the operation of a nuclear reactor of any type, enters the atmosphere and became a part of carbon cycle. The article presents the results of measuring
Evgeny I. Nazarov   +7 more
doaj   +3 more sources

Reconstructing groundwater and lake level histories in Northern Wisconsin: isolation of groundwater’s influence on tree rings from climatic and environmental drivers

open access: yesEnvironmental Research Letters, 2023
Tree rings can reveal long-term environmental dynamics and drivers of tree growth. However, individual ecological drivers of tree growth need to be disentangled from the effects of other co-occurring environmental and climatic conditions in tree rings to
Dominick M Ciruzzi, Steven P Loheide II
doaj   +1 more source

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