نتایج جستجو برای: central eurasia biquarterly
تعداد نتایج: 472643 فیلتر نتایج به سال:
Characterizing genetic diversity in Africa is a crucial step for most analyses reconstructing the evolutionary history of anatomically modern humans. However, historic migrations from Eurasia into Africa have affected many contemporary populations, confounding inferences. Here, we present a 12.5× coverage ancient genome of an Ethiopian male ("Mota") who lived approximately 4500 years ago. We us...
The active tectonics in Myanmar is governed by the ongoing northward indentation and obliquely-eastward subduction of India into Eurasia. So far, detailed seismic structure crust uppermost mantle at eastern flank India-Eurasia collision zone remains highly debated. With waveforms recorded 79 broadband stations Myanmar, we build a regional shear velocity model depth range 0–80 km joint inversion...
[1] Oblique convergence is the general rule along convergent boundaries. Such convergence produces asymmetric deformation (topography) along the collision boundary. To quantify this asymmetry, we develop a method that allows us to calculate the asymmetry in topography with respect to a reference line drawn perpendicular to the collision boundary. The asymmetry in topography is presented as a nu...
This document is one of a series of publications sponsored by the Social Transition Team in the Bureau for Europe and Eurasia on social transition issues in the Region. You may download the documents in this series from the USAID Development Experience Clearinghouse website (http://dec.usaid.gov), using the Doc IDs for reference. If you would like more information about these and upcoming produ...
The Neandertal lineage developed successfully throughout western Eurasia and effectively survived the harsh and severely changing environments of the alternating glacial/interglacial cycles from the middle of the Pleistocene until Marine Isotope Stage 3. Yet, towards the end of this stage, at the time of deteriorating climatic conditions that eventually led to the Last Glacial Maximum, and soon...
How do the continents affect large-scale hydrological cycles? How important can one continent be to the climate system? To address these questions, five years of National Aeronautics and Space Administration (NASA) Terra Moderate Resolution Imaging Spectroradiometer (MODIS) observations, Tropical Rainfall Measuring Mission (TRMM) observations, and the Global Precipitation Climatology Project (G...
North America and Eurasia share several closely related taxa that diverged either from the breakup of the Laurasian supercontinent or later closures of land bridges. Their modern population structures were shaped in Pleistocene glacial refugia and via later expansion patterns, which are continuing. The pikeperch genus Sander contains five species – two in North America (S. canadensis and S. vit...
Lineages arriving on islands may undergo explosive evolutionary radiations owing to the wealth of ecological opportunities. Although studies on insular taxa have improved our understanding of macroevolutionary phenomena, we know little about the macroevolutionary dynamics of continental exchanges. Here we study the evolution of eight Carnivora families that have migrated across the Northern Hem...
Compound events have the potential to cause high socioeconomic and environmental losses. We examine ability of sixth phase Coupled Model Intercomparison Project (CMIP6) models capture two bivariate compound events: co-occurrence heavy rain strong wind, heat waves meteorological drought. evaluate over North America, Europe, Eurasia, Australia using observations reanalysis data set spanning 1980–...
Abstract Based on statistical analyses and Arctic Oscillation (AO) the Pacific-North American pattern (PNA) induced climate anomalies in 2001–2020 interval, it has been found that these modes drastically influence fire danger (PFIv2) differing ways across coastal inland regions. The AO induces higher risk northern Eurasia central North America, whereas PNA increases southern Asia western Americ...
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