نتایج جستجو برای: northern eurasia

تعداد نتایج: 114337  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2011
Ron Pinhasi Thomas F G Higham Liubov V Golovanova Vladimir B Doronichev

Advances in direct radiocarbon dating of Neanderthal and anatomically modern human (AMH) fossils and the development of archaeostratigraphic chronologies now allow refined regional models for Neanderthal-AMH coexistence. In addition, they allow us to explore the issue of late Neanderthal survival in regions of Western Eurasia located within early routes of AMH expansion such as the Caucasus. He...

2013
JOHN P. KRASTING ANTHONY J. BROCCOLI KEITH W. DIXON JOHN R. LANZANTE

Using simulations performed with 18 coupled atmosphere–ocean global climatemodels from phase 5 of the Coupled Model Intercomparison Project (CMIP5), projections of the Northern Hemisphere snowfall under the representative concentration pathway (RCP4.5) scenario are analyzed for the period 2006–2100. These models perform well in simulating twentieth-century snowfall, although there is a positive...

Journal: :Genome 2002
Torbjörn Tyler

Allozyme variation in the forest grass Milium effusum L. was studied in 21-23 populations within each of two equally sized densely sampled areas in northern and southern Sweden. In addition, 25 populations from other parts of Eurasia were studied for comparison. The structure of variation was analysed with both diversity statistics and measures based on allelic richness at a standardised sample...

Journal: :علوم 0

habit and pollen morphology were studied in four taxa belonging to astragalus sect. macrophyllium in iran. data obtained from pollen morphology support the phenetic grouping based on habit morphology. in addition, meiotic chromosome number and behavior were analyzed in two species of the section. the species were cytogenetically analyzed and found to be tetraploid and possess a 2n = 4x = 32 chr...

Journal: :Geophysical Journal International 2022

SUMMARY The Main Köpetdag Fault (MKDF) is a predominantly right-lateral strike-slip fault that dissects the northern edge of mountains Turkmenistan and Iran. represents northernmost expression deformation from Arabia-Eurasia collision to east Caspian Sea, plays an important role facilitating motion South Basin (SCB). Despite kinematic significance MKDF, previous geodetic measurements slip-rate ...

Journal: :Quarterly Journal of the Royal Meteorological Society 2022

Here we explore the stratospheric influence on predictability of Eurasian cold-spell events using European Centre for Medium-Range Weather Forecasts (ECMWF) ensemble hindcasts obtained from Subseasonal-to-Seasonal (S2S) archive. To isolate influence, subsampled two groups according to strength polar vortex preceding cold spells at surface. The predicted probability spells, defined as lowest 10t...

Journal: :Molecular phylogenetics and evolution 2009
Lei Xie Warren L Wagner Richard H Ree Paul E Berry Jun Wen

Circaea (Onagraceae) consists of eight species and six subspecies distributed in Eurasia and North America. The sister group of Circaea was recently shown to be Fuchsia, which comprises 107 species primarily distributed in montane Central and South America, including four species occurring in the South Pacific islands. Three plastid markers (petB-petD, rpl16, and trnL-F) and nrITS sequences fro...

Journal: :Journal of Applied Meteorology and Climatology 2021

Abstract It is argued that the occurrence of cold events decreases under background global warming. However, from mid-1990s to early 2010s, northern China experienced a period increasing low temperature extremes (LTE). Factors responsible for this increase LTE are investigated in analysis. The results show interdecadal variation winter mean over mid- and high-latitude Eurasia acts as an importa...

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