The association between climate variability and episodic events, such as the antecedent moisture conditions prior to wildfire or the cooling following volcanic eruptions, is commonly assessed using Superposed Epoch Analysis (SEA). In SEA the epochal response is typically calculated as the average...

The end-Permian extinction (EPE) has been considered to be contemporaneous on land and in the oceans. However, re-examined floristic records and new radiometric ages from Gondwana indicate a nuanced terrestrial ecosystem response to EPE global change. Paleosol geochemistry and climate simulations...

Tree-ring width chronologies of cedro (Cedrela fissilis Vell.) (1875 to 2018), jatobá (Hymenaea courbaril L.) (1840 to 2018) and roxinho Peltogyne paniculata Benth. (1910 to 2018) were developed by dendrochronological techniques in the southern Amazon Basin. Acceptable statistics for the tree-ring...

Accumulations of woody debris and in situ forests in and near ancient river systems are studied in Permian through Triassic strata of Antarctica. These Permian and Triassic fossil ecosystems represent paleo-polar and paleo-high-latitude environments, respectively, and therefore represent unique...

This study investigates if Blue Intensity (BI) parameters are capable of capturing enhanced climatic signals from a key New Zealand dendrochronological species when compared to ring-width (RW) measurements. Three BI parameters (earlywood mean, latewood mean and maximum latewood) recorded generally...

A tree-ring analysis of 764 western white spruce (Picea albertiana) in the Takhini Valley of southwest Yukon was conducted to assess short- and long-term variation in growth and local climate. The resulting chronology spanned the period from AD 1763 to 2013. A polynomial regression (R=0.720, ...

Utah's Great Salt Lake (GSL) is a closed-basin remnant of the larger Pleistocene-age Lake Bonneville. The modern instrumental record of the GSL-level (i.e. elevation) change is strongly modulated by Pacific Ocean coupled ocean/atmospheric oscillations at low frequency, and therefore reflects the...

Over the recent decades, a many oak tree-ring width chronologies have been used for archaeological, climatological and ecological studies, particularly across western, southern and central Europe. However, a general summary of research in the easternmost distribution of European oaks, represented...

Paleoclimate reconstructions from tree rings have so far been restricted to the western and northern Caucasus, and there have been no published tree-ring studies on any topic from the Republic of Azerbaijan in the eastern Caucasus. Here we report the first tree-ring study conducted in Azerbaijan...

Although Slovakia is largely forested and rich in historical buildings, it is one of the few European countries without a millennium-long tree-ring chronology. In this study, we gather all available oak ring width data from Slovakia, establish a new composite chronology and assess its climate...