Holocene forcing of aeolian dust activity over the Tibetan Plateau and its surroundings

Changes in Late Pleistocene Dust Activity in the Southern Tibetan Plateau in Response to Orbital Precession and Mountain Glaciers

“…However, the mean grain size could be proportional to the cube (Hsu, 1971;McGee et al, 2018) or square (Bagnold, 1941;Shao & Lu, 2000) of wind speed, and thus less sensitive in the case of weaker winds. Recently, the sorting coefficient of grain size has been found to be more sensitive to wind intensity than the mean grain size , and it has been applied to reflect near-surface wind intensity in the YTR valley (Cheng, Yang, Long, Song, Chen, et al, 2023;Cheng, Yang, Long, Song, Miao, et al, 2023;Yang et al, 2024). The sorting coefficient presented a peak at the depths of 674-620 cm (Figure 6), while the mean grain size remained consistent.…”

“…Recently, K-feldspar pIRIR (Cheng, Yang, Long, Song, Miao et al, 2023) has also been applied to date to the YTR loess, and the age of the YTR loess has been extended to >138 ka. In recent years, several researches on Holocene dust activity has been conducted based on the YTR loess (Cheng, Yang, Long, Song, Chen, et al, 2023;Li et al, 2020;Pan et al, 2014;Wang et al, 2024;Yang et al, 2024), and millennial-scale dust activity during the Holocene appears to be primarily related to the North Atlantic climate, solar activity, and human activity. It is important to understand the variation process and driving mechanism of dust activity on multiple time scales.…”