摘要
通过对达拉特旗国家一般气象站1959—2008年的有关气象观测资料,分析了达拉特旗近50a来气温、风、降水气象要素的变化趋势和特点,探讨了城市化发展对达拉特旗局地气候变化产生的影响。分析表明:(1)近50a来,达拉特旗年平均温度呈明显上升趋势,趋势强度在不断加强,年极端最低气温也呈上升趋势。(2)不断增多、增密的建筑物对气流阻滞作用,使当地年平均风速呈减小趋势。同时,随着达拉特旗城市化的快速发展和进程的加快,已经对局地气候产生了重要影响,城市化进程对平均气温、风速的影响比对其降水量的影响更为显著、直接。
Based on climate observation data from the general meteorological stations in Dalate Banner from 1959 to 2008 years, this article analyzed the changing trends and characteristics of temperature, wind, precipitation in Dalate Banner for nearly 50 years, and discussed the effect of urbanization development on local climate change in Dalate Banner. The research shows that： （1） the annual average temperature in Dalate Banner witnessed great rising, the intensity is continuing to strengthen, and the annual extreme minimum temperature is also rising for the last 50 years. （2） the increasing density of buildings had the impact of blocking on airflow, which led local annual average wind speed to decrease. It also shows that： with the rapid development of urbanization and the acceleration of urbanization process in Dalate Banner, which have important influence on regional climate, the process of urbanization has more significant and direct impact on average temperature and wind speed than precipitation.
出处
《内蒙古气象》
2011年第6期43-45,81,共4页
Meteorology Journal of Inner Mongolia
