| 哈尔滨冬季重污染日气象特征 |
| |
| 引用本文： | 钟幼军,国世友.哈尔滨冬季重污染日气象特征[J].气象与环境学报,2013,29(1):23-27. |
| |
| 作者姓名： | 钟幼军 国世友 |
| |
| 作者单位： | 黑龙江省气象台，黑龙江 哈尔滨 150030 |
| |
| 基金项目： | 2009年黑龙江省气象局科研项目资助 |
| |
| 摘 要： | 以2000-2009年中国环境保护部公布的空气质量日报中空气污染指数大于200的日期作为重污染日，从气象因素方面分析哈尔滨冬季重污染日发生的原因。结果表明：哈尔滨冬季重污染日20时地面风速为1级或静风；85 %的重污染日在850 hPa层以下有逆温现象，最大逆温强度出现在地面与925 hPa之间，为0.73 ℃/100 m；95 %的重污染日在850 hPa层以下有下沉运动。重污染的典型地面形势包括高压边缘型、高压中心型和低压边缘型三类。高压边缘型和高压中心型表现为大气对污染物的水平、垂直输送均为不利，而低压边缘型表现为有利于污染物的垂直输送。天气形势特征的归类，可为开展空气污染预报提供参考。
|
| 关 键 词： | 哈尔滨 重污染日 气象特征 哈尔滨 重污染日 气象特征 |
Synoptic characteristics of heavy air pollution day in winter over Harbin |
| |
| ZHONG You-jun
,
GUO Shi-you.Synoptic characteristics of heavy air pollution day in winter over Harbin[J].Journal of Meteorology and Environment,2013,29(1):23-27. |
| |
| Authors: | ZHONG You-jun GUO Shi-you |
| |
| Institution: | Heilongjiang Meteorological Observatory, Harbin 150030, China |
| |
| Abstract: | Based on the data of the daily air quality report from China Ministry of Environmental Protection from 2000 to 2009, the day that air pollution index (API) is more than 200 is selected as the heavy pollution day, and its formation reasons were analyzed in terms of meteorological elements. The results show that the surface wind speed at 20:00 o’clock in the heavy pollution day in Harbin is the first level or calm. There is a temperature inversion phenomenon below 850 hPa for 85% heavy pollution days. The maximum inverse temperature is 0.73 ℃/100 m and occurs between the ground and 925 hPa. There is a descending motion below 850 hPa for 95% heavy pollution days. The primary synoptic situation of heavy pollution days is high pressure edge type, high pressure center type and low pressure edge type. It is not favorable to the horizontal and vertical transport of pollutants for the first two types, while it is favorable to the vertical transport of pollutants for the third type. The classification of synoptic situation could provide references for air pollution forecast. |
| |
| Keywords: | Harbin Heavy air pollution days Synoptic characteristics |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《气象与环境学报》浏览原始摘要信息 |
| 点击此处可从《气象与环境学报》下载免费的PDF全文 |
