论文部分内容阅读
新疆位于欧、亚大陆中心,东经73°35’到96°30’、北纬34°20’至50°26’之间.四周高山环绕,天山横互中央,分南北为两大盆地.北部阿勒太山脉舆天山山脉构成准噶尔盆地,南部天山、崐仑山、阿尔金山脉构成塔里木盆地.因远距海洋,且崐仑山南接青藏高原,东为连绵的黄土高原与高山地带,东、南海洋暖湿气团难于侵入;而西部、西北部接壤苏联地区,山势较低,且有缺口,潮湿气流可以侵入.形成降雨.地理位置与地形特点,决定了天气变化与我国东部不同,水汽主要来于西方及北方.据新疆气象科学研究所分析,西来气流的水汽含量,大于北来的3.5倍.所以、新疆的丰、枯水期,与西来气流的强弱,有密切的关系.
Xinjiang is located in the center of Europe and Asia, longitude 73 ° 35 ’to 96 ° 30’ east longitude, latitude 34 ° 20 ’to 50 ° 26’ Surrounded by high mountains, Tianshan cross-center, divided into two major basins north and south. The Tethys Mountains in the Leyachtsan Mountains constitute the Junggar Basin, the southern Tianshan Mountains, the Kunlun Mountains and the Altun Mountains constitute the Tarim Basin, and because of the long distance to the sea, the Kunlun Mountains connect the Qinghai-Tibet Plateau to the south, the continuous loess plateau and the high mountains to the east, The warm and wet air masses in the ocean are hard to invade; while the western and northwestern regions bordering the Soviet Union are characterized by low mountain slopes and gaps, and the humid air currents can invade and form rainfall. The geographical location and topographical features determine the change of weather which is different from the eastern part of China. Coming from the west and the north.According to the analysis of Xinjiang Institute of Meteorological Sciences, the water vapor content of the Xilai airflow is more than 3.5 times that of the north, so the abundance and dry season in Xinjiang are closely related to the strength of the Xilai airflow.