古大气环流研究旨在揭示高大沙山形成发育过程中地表风系的变化和大气环流形式。通过对巴丹吉林沙漠的沙山形态、沙山地层测年、古沙丘层理结构以及区域风况等的综合研究 ,表明末次间冰期以前该区主要受西风环流控制 ,地表盛行风向为西风 ,次为西北风 ,河湖水系较发育 ;末次冰期以来该区主要受东亚季风环流影响 ,地表盛行风向为西北风 ,次为西风 ,风沙活动居主导地位。古风向变化可能是青藏高原隆升对西风环流的阻挡与对东亚季风环流强化的具体表现 Paleo-Atmospheric Circulation Research aims to reveal the variation of surface wind system and the form of general circulation in the formation and development of the Gaoshanshan Formation. The comprehensive study of the sand dune morphology of Badain Jaran Desert, the dating of Shashan formation, the structure of ancient sand dune and the wind condition in the region indicate that the area was mainly controlled by the westerly circulation before the last interglacial period, and the prevailing wind direction on the surface was westerly. Followed by the northwesterly winds, and relatively developed river and lake water systems. Since the last glacial period, the area was mainly affected by the circulation of the East Asian monsoon. The prevailing wind direction on the surface is the northwest wind, the westerly wind times, and the wind-blown sand dominance. Changes in palaeoclimatic direction may be a barrier to the westerly circulation due to the uplift of the Qinghai-Tibet Plateau and a concrete manifestation of the intensification of the circulation of the East Asian monsoon