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Tibetan

Gravity waves caused by complex terrain over the Tibetan Plateau can enhance the intensity of spring rainfall

The breaking of orographic gravity waves induces a zonal wave drag in the middle troposphere, which destroys the geostrophic balance of the large-scale westerly flow and thus drives an ageostrophic meridional circulation across the Tibetan Plateau. The rising branch of the meridional circulation acts to lower the pressure and increase the meridional pressure gradient to the south of the Tibetan Plateau by dynamically pumping the lower-tropospheric air…

Pre-Cryogenian stratigraphy, paleontology, and paleogeography of the Tibetan Plateau and environs

In the figure can be seen the possible paleogeographic locations of the terranes in the Tibetan Plateau and environs. Ind=India; Au=Australia; Ant=Antarctic; Kal=Kalahari; SF=San Francisco; Con=Congo; Lau=Laurentia; Rio=Rio de la Plata; Amz=Amazonia; Bal=Baltica; W.Af=West Africa; Sib=Siberia; ANS=Arabian-Nubian Shield; SC=South China; AFB=Albany-Fraser orogen; EGB=Eastern Ghats orogen; KB-IB=Kibaran and Irumide orogens; G=Greenville orogen. Credit:…

Comparable net radiation between the high-elevation Tibetan Plateau and the low-elevation Yangtze River region: Study

Radiative components and surface heat fluxes between the Tibetan Plateau and Yangtze River region. The base map of the image is a map of China. Credit: Nan Yao Land–atmosphere interactions play a crucial role in shaping Earth's climate system, profoundly influencing weather patterns, climate variables, and ecological processes. Despite being located at similar latitudes, the Tibetan Plateau (TP) and Yangtze River region (YRR)…

Understanding uncertainties in projected summer precipitation changes over the Tibetan Plateau

The spatial distribution of summer precipitation anomalies (units: mm day-1) in 2050-2099 over Tibetan Plateau under the SSP5-8.5 scenario. The dots denote regions where at least 80% of the models agree on the sign of change. The black line indicates the boundaries of the TP, where the elevations are above 2,500 m. The baseline climatology refers to the period from 1965-2014, and the mid- and long-term is from 2050-2099. Credit: IAP…

Ancient 15,000-Year-Old Viruses Seen in Melting Tibetan Glaciers : ScienceAlert

Ancient creatures are emerging from the cold storage of melting permafrost, almost like something out of a horror movie.From incredibly preserved extinct megafauna like the woolly rhino, to the 40,000-year-old remains of a giant wolf, and bacteria over 750,000 years old.Not all of these things are dead.Centuries-old moss was able to spring back to life in the warmth of the laboratory. So too, incredibly, were tiny 42,000-year-old roundworms.These fascinating glimpses of organisms from Earth's long distant past are…

Study traces the roots of longstanding cultural interactions across the Tibetan Plateau to prehistoric times

Simulated "mobility highways" of farmer-herder interactions overlaid with the geolocated archaeological sites dated between ca. 3600 and 2200 before present. Credit: Xinzhou Chen The 1 million-square-mile Tibetan Plateau—often called the "roof of the world"—is the highest landmass in the world, averaging 14,000 feet in altitude. Despite the extreme environment, humans have been permanent inhabitants there since prehistoric…

Tibetan plateau’s spring heat source exerts delayed influence on Northeast China’s summer precipitation

Mount Qomolangma over the Tibetan Plateau. Credit: Xi Zhenhua In a recent study published in Advances in Atmospheric Sciences, researchers from the Institute of Atmospheric Physics at the Chinese Academy of Sciences have uncovered the impact of the spring atmospheric heat source (AHS) over the Tibetan Plateau on summer precipitation in Northeast China, highlighting the crucial role played by soil moisture in this process.…

Climate change found to have fostered the rise and fall of the Tibetan Empire from 600 to 800 AD

The varves of JiangCo are annual varves, each layer divided into coarse-grained and fine-grained sub-layers. Credit: Science China Press Results are in from a study led by Dr. Juzhi Hou, Dr. Fahu Chen, and Dr. Kejia Ji (Group of Alpine Paleoecology and Human Adaptation (ALPHA), State Key Laboratory of Tibetan Plateau Earth System, Resources and Environment (TPESRE), Institute of Tibetan Plateau Research, Chinese Academy of…

Considerable but unsustainable water supply from thawing permafrost on the Tibetan Plateau in a changing climate

Graphical abstract. Credit: Science Bulletin (2023). DOI: 10.1016/j.scib.2023.04.037 In a warming climate, the sustainability of cryospheric meltwater on the Tibetan Plateau has raised concerns because of its importance for the fragile ecosystem in the headwater regions and the dense populations in the downstream. Existing studies mainly focused on glacier melt and snow melt on the Tibetan Plateau, which are above the ground…