about
Punctuated Shutdown of Atlantic Meridional Overturning Circulation during Greenland Stadial 1Oxygen isotopes in tree rings are a good proxy for Amazon precipitation and El Nino-Southern Oscillation variabilitySpatial variability and temporal trends in water-use efficiency of European forests.Climate Change Increases Drought Stress of Juniper Trees in the Mountains of Central Asia.Tracing carbon and oxygen isotope signals from newly assimilated sugars in the leaves to the tree-ring archive.UV-laser-based microscopic dissection of tree rings - a novel sampling tool for δ(13) C and δ(18) O studies.Tuning the Voices of a Choir: Detecting Ecological Gradients in Time-Series PopulationsMeteorological Drivers of Extremes in Daily Stem Radius Variations of Beech, Oak, and Pine in Northeastern Germany: An Event Coincidence Analysis.Tree height strongly affects estimates of water-use efficiency responses to climate and CO2 using isotopes.Increased water-use efficiency translates into contrasting growth patterns of Scots pine and sessile oak at their southern distribution limits.Global Peak in Atmospheric Radiocarbon Provides a Potential Definition for the Onset of the Anthropocene Epoch in 1965.Wood Cellulose Preparation Methods and Mass Spectrometric Analyses of δ13C, δ18O, and Nonexchangeable δ2H Values in Cellulose, Sugar, and Starch: An Interlaboratory ComparisonOxygen isotopes in tree rings show good coherence between species and sites in BoliviaThe twentieth century was the wettest period in northern Pakistan over the past millenniumA Network of Terrestrial Environmental Observatories in GermanyNew tree-ring evidence for the Late Glacial period from the northern pre-Alps in eastern SwitzerlandImpact of climate and CO2 on a millennium-long tree-ring carbon isotope recordClimate signals in tree-ring width, density and δ13C from larches in Eastern Siberia (Russia)Changes in El Niño – Southern Oscillation (ENSO) conditions during the Greenland Stadial 1 (GS-1) chronozone revealed by New Zealand tree-ringsDecadally Resolved Lateglacial Radiocarbon Evidence from New Zealand KauriLong tree-ring chronologies reveal 20th century increases in water-use efficiency but no enhancement of tree growth at five Iberian pine forestsPlacing unprecedented recent fir growth in a European-wide and Holocene-long contextSubfossil trees suggest enhanced Mediterranean hydroclimate variability at the onset of the Younger DryasClimatic signal from Pinus leucodermis axial resin ducts: a tree-ring time series approachA high yield cellulose extraction system for small whole wood samples and dual measurement of carbon and oxygen stable isotopesResponse of climate-growth relationships and water use efficiency to thinning in a Pinus nigra afforestationA guideline for sample preparation in modern tree-ring stable isotope researchMultiple tree-ring chronologies (ring width, δ13C and δ18O) reveal dry and rainy season signals of rainfall in IndonesiaAn 810-year history of cold season temperature variability for northern PolandIsotope signals as climate proxies: the role of transfer functions in the study of terrestrial archivesHydroclimatic seasonality recorded by tree ring δ18O signature across a Himalayan altitudinal transectCharacteristics of radial growth and stable isotopes in a single oak tree to be used in climate studiesPooled versus separate measurements of tree-ring stable isotopesClimate signals derived from cell anatomy of Scots pine in NE Germany
P50
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P50
description
onderzoeker
@nl
researcher
@en
հետազոտող
@hy
name
Gerhard Helle
@ast
Gerhard Helle
@en
Gerhard Helle
@es
Gerhard Helle
@nl
type
label
Gerhard Helle
@ast
Gerhard Helle
@en
Gerhard Helle
@es
Gerhard Helle
@nl
prefLabel
Gerhard Helle
@ast
Gerhard Helle
@en
Gerhard Helle
@es
Gerhard Helle
@nl
P214
P106
P1153
15759638700
P214
P31
P496
0000-0001-9988-6638
P734
P735
P7859
viaf-57351891