Climatic variations over the last 4000calyr BP in the western margin of the Tarim Basin, Xinjiang, reconstructed from pollen data

Hydrological extremes in the Aksu-Tarim River Basin: Mid-latitude dynamics

“…Also other large-scale circulation indices considered suggest a close relation between extremes of the hydrological cycle in the Tarim River Basin and large-scale mid-latitude circulation in particular in the Atlantic and European sector (Wang et al 2014). Time series from paleo and more recent climate archives show oscillations between dry and wet periods since at least 4000 years (Zhao et al 2012;Chen et al 2006a) and a connection to climate extremes in the NorthAtlantic sector (Bond et al 1997). On an interannual time scale teleconnection patterns are found linking extremes of the hydrological cycle on different continents (Lau and Weng 2002;Wallace and Gutzler 1981;Ding and Wang 2005;Conversi et al 2010;Zhu et al 2011).…”

“…By analysing in a combined way mid-latitude cyclone tracks, the upper tropospheric potential vorticity front and hydrological extremes we have opened a new way to a more direct understanding of the dynamical causes leading to the European-Asian teleconnections found today and in the past (Zhao et al 2012). The dynamics of the upper tropospheric potential vorticity front during the hydrological extreme events considered suggests that at least during winter specific breaking and cut-off events are responsible for hydrological extremes in the Tarim River Basin.…”

Middle-Late Pleistocene Paleo-Climate and Paleo-Altimetry of the Centre of Tibetan Plateau Indicated by the Sporopollen Record of Well QZ-4

“…Prior to alkali digestion, moss polsters and soils were dispersed in distilled water and sieved (200 mm) to remove coarse detritus and sand. Lycopodium tablets were added to the samples to allow for estimation of pollen concentrations [13]. All samples have been studied under microscopes at Nanjing Institute of Geology and Palaeontology, Academic Sinica (Nanjing, China) and The Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences (Shijiazhuang, China).…”

Palynological Evidence of Late Holocene Paleo‐Monsoon in Eastern Pamir

“…They include pine ( Pinus ), fir ( Abies ), hemlock ( Tsuga ), birch ( Betula ), hazel ( Corylu ) s , hornbeam ( Carpinus ), oak ( Quercus ), chestnut ( Castanea ), walnut ( Juglans ), Platycarya , cashew family (Anacardiaceae), mahogany family (Meliaceae), and linden ( Tilia ). According to modern vegetation and pollen studies of the area, these arboreal pollen types, with low concentrations and influx values (Text S3 in the supporting information), are regarded as exotic taxa supplied by long‐distance transport (Cour et al, ; Huang et al, ; Weng et al, ; Zhao et al, ). Notably, several subtropical taxa (e.g., Tsuga , Platycarya , Anacardiaceae, and Meliaceae) occur in the pollen records.…”