Concord and discord among Northern Hemisphere paleotemperature reconstructions from tree rings
نویسندگان
چکیده
منابع مشابه
Five Millennia of Paleotemperature from Tree-Rings in the Great Basin, USA
The instrumental temperature record is of insufficient length to fully express the natural variability of past temperature. High elevation tree-ring widths from Great Basin bristlecone pine (Pinus longaeva) are a particularly useful proxy to infer temperatures prior to the instrumental record in that the tree-rings are annually dated and extend for millennia. From ring-width measurements integr...
متن کاملModern Radiocarbon Levels for Northwestern Mexico Derived from Tree Rings: a Comparison with Northern Hemisphere Zones 2 and 3 Curves
The radiocarbon variation for northwestern Mexico during the period 1950–2004 was studied by accelerator mass spectrometry (AMS) and liquid scintillation counting (LSC) analyses of tree rings. Two tree-ring sequences of Pseudotsuga menziesii, sampled in a site isolated from urban centers and active volcanoes (26.18N, 106.3W, 3000 m asl), were dendrochronologically dated and separated in annua...
متن کاملContextual and Prosodic Disambiguation of French Concord and Discord
Introduction. Although commonly classified as a Negative Concord (NC) language since it readily allows single negation readings of Negative Concord Items (NCI) sequences (1c), French has widely been acknowledged to also tolerate Double Negation (DN) or Negative Discord, albeit as a marked option (De Swart, Corblin, 1996). This DN tolerance, diagnosed by Zeijlstra (2004) as a symptom of the stil...
متن کاملEvaluation of Northern Hemisphere natural climate variability in multiple temperature reconstructions and global climate model simulations
The detection of anthropogenic climate change in observations and the validation of climate models both rely on understanding natural climate variability. To evaluate internal climate variability, we apply spectral analysis to time series of surface air temperature (SAT) from nine coupled general circulation model (GCM) simulations, three recent global paleotemperature reconstructions, and Nort...
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ژورنال
عنوان ژورنال: Quaternary Science Reviews
سال: 2019
ISSN: 0277-3791
DOI: 10.1016/j.quascirev.2018.11.013