辽宁中部地区低能见度天气特征及与气象因素变化规律分析

李岚; 张凯; 齐昕; 唐亚平; 林毅; 王迪; 张婉莹

doi:10.12030/j.cjee.201602068

环境工程学报

辽宁中部地区低能见度天气特征及与气象因素变化规律分析

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李岚, 张凯, 齐昕, 唐亚平, 林毅, 王迪, 张婉莹. 辽宁中部地区低能见度天气特征及与气象因素变化规律分析[J]. 环境工程学报, 2017, 11(4): 2330-2336. doi: 10.12030/j.cjee.201602068

引用本文:

LI Lan, ZHANG Kai, QI Xin, TANG Yaping, LIN Yi, WANG Di, ZHANG Wanying. Analysis of temporal and spatial distribution characteristics of low visibility weather and change rules of meteorological factors in central region of Liaoning[J]. Chinese Journal of Environmental Engineering, 2017, 11(4): 2330-2336. doi: 10.12030/j.cjee.201602068

Citation:

LI Lan, ZHANG Kai, QI Xin, TANG Yaping, LIN Yi, WANG Di, ZHANG Wanying. Analysis of temporal and spatial distribution characteristics of low visibility weather and change rules of meteorological factors in central region of Liaoning[J]. Chinese Journal of Environmental Engineering, 2017, 11(4): 2330-2336. doi: 10.12030/j.cjee.201602068

辽宁中部地区低能见度天气特征及与气象因素变化规律分析

1.
辽宁省气象服务中心, 沈阳 110166
2.
辽宁省气象局, 沈阳 110011
基金项目:
公益性行业（气象）科研专项（GYHY201106001）

辽宁省气象局重点科研项目（201503）
中图分类号: X513

Analysis of temporal and spatial distribution characteristics of low visibility weather and change rules of meteorological factors in central region of Liaoning

1.
Liaoning Meteorological Service Center, Shenyang 110166, China
2.
Liaoning Meteorological Bureau, Shenyang 110011, China
Fund Project:

摘要: 利用1961—2010年辽宁中部地区16个气象站地面观测资料，采用趋势分析、不同标准期对比法和Mann-Kendall检验法，对辽宁中部地区因（轻）雾、霾引起的低能见度天气的时空分布特征及气象影响因子进行了分析。结果表明：辽宁中部地区低能见度日数整体呈增加趋势，且在2002年发生了突变，日数的增加主要发生在最近10年期间；低能见度天气逐月日数呈双峰双谷分布，夏季低能见度天气出现的最多，冬季次之，春季最少；低能见度天气的空间分布呈"两高两低"形势，与第1个标准气候期相比，最近30年标准气候期年平均低能见度天气日数增多了14 d；低能见度天气日数随着相对湿度的增大出现几率呈先增大后减小趋势；夏半年低能见度天气日数与降水量变化趋势一致，冬半年则相反；日均风速≤4.0 m·s-1、出现负变压时，对低能见度天气的形成更为有利。
- 低能见度 /
- 时空分布 /
- 气象要素 /
- 辽宁中部地区
Abstract: By utilizing surface observation data collected at 16 meteorological stations in the central region of Liaoning from 1961 to 2010, as well as trend analyses, comparison methods for different standard periods, and the Mann-Kendall test method, this paper analyzed the temporal and spatial distribution characteristics of low visibility weather caused by haze and the associated meteorological impact factors in Liaoning. The results indicated that the number of low visibility days has risen on a whole, but 2002 was an anomalously low year. The number of low visibility days has generally increased during the last 10 years. The monthly number of days with low visibility weather displayed a "double peaks and double valleys" form, which showed the maximum number of low visibility days in summer, followed by the winter, and the minimum in spring. The spatial distribution of low visibility weather demonstrated a "two-high and two-low" pattern. Compared with the first standard climate period, it could be observed that the average annual number of low visibility days of the standard climate period during the recent 30-year period increased by 14 d. The occurrence probability of low visibility days increased at first and then decreased with increases in the relative humidity. The changing tendency of low visibility days and precipitation volume in the summer half of the year was consistent, while the opposite occurred in the winter half of the year. When the average wind speed was less than or equal to 4.0 m·s-1 and there was negative pressure, these conditions were more conductive to the formation of low visibility weather.
- low visibility weather /
- spatial and temporal distribution /
- meteorological elements /
- central region of Liaoning

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Citation:

LI Lan, ZHANG Kai, QI Xin, TANG Yaping, LIN Yi, WANG Di, ZHANG Wanying. Analysis of temporal and spatial distribution characteristics of low visibility weather and change rules of meteorological factors in central region of Liaoning[J]. Chinese Journal of Environmental Engineering, 2017, 11(4): 2330-2336. doi: 10.12030/j.cjee.201602068

辽宁中部地区低能见度天气特征及与气象因素变化规律分析

1. 辽宁省气象服务中心, 沈阳 110166
2. 辽宁省气象局, 沈阳 110011

收稿日期: 2016-05-10

基金项目:

公益性行业（气象）科研专项（GYHY201106001）

辽宁省气象局重点科研项目（201503）

关键词:

摘要: 利用1961—2010年辽宁中部地区16个气象站地面观测资料，采用趋势分析、不同标准期对比法和Mann-Kendall检验法，对辽宁中部地区因（轻）雾、霾引起的低能见度天气的时空分布特征及气象影响因子进行了分析。结果表明：辽宁中部地区低能见度日数整体呈增加趋势，且在2002年发生了突变，日数的增加主要发生在最近10年期间；低能见度天气逐月日数呈双峰双谷分布，夏季低能见度天气出现的最多，冬季次之，春季最少；低能见度天气的空间分布呈"两高两低"形势，与第1个标准气候期相比，最近30年标准气候期年平均低能见度天气日数增多了14 d；低能见度天气日数随着相对湿度的增大出现几率呈先增大后减小趋势；夏半年低能见度天气日数与降水量变化趋势一致，冬半年则相反；日均风速≤4.0 m·s-1、出现负变压时，对低能见度天气的形成更为有利。

English Abstract

Analysis of temporal and spatial distribution characteristics of low visibility weather and change rules of meteorological factors in central region of Liaoning

1. Liaoning Meteorological Service Center, Shenyang 110166, China
2. Liaoning Meteorological Bureau, Shenyang 110011, China

Received Date: 2016-05-10

Fund Project:

Keywords:

Abstract: By utilizing surface observation data collected at 16 meteorological stations in the central region of Liaoning from 1961 to 2010, as well as trend analyses, comparison methods for different standard periods, and the Mann-Kendall test method, this paper analyzed the temporal and spatial distribution characteristics of low visibility weather caused by haze and the associated meteorological impact factors in Liaoning. The results indicated that the number of low visibility days has risen on a whole, but 2002 was an anomalously low year. The number of low visibility days has generally increased during the last 10 years. The monthly number of days with low visibility weather displayed a "double peaks and double valleys" form, which showed the maximum number of low visibility days in summer, followed by the winter, and the minimum in spring. The spatial distribution of low visibility weather demonstrated a "two-high and two-low" pattern. Compared with the first standard climate period, it could be observed that the average annual number of low visibility days of the standard climate period during the recent 30-year period increased by 14 d. The occurrence probability of low visibility days increased at first and then decreased with increases in the relative humidity. The changing tendency of low visibility days and precipitation volume in the summer half of the year was consistent, while the opposite occurred in the winter half of the year. When the average wind speed was less than or equal to 4.0 m·s-1 and there was negative pressure, these conditions were more conductive to the formation of low visibility weather.

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辽宁中部地区低能见度天气特征及与气象因素变化规律分析

Analysis of temporal and spatial distribution characteristics of low visibility weather and change rules of meteorological factors in central region of Liaoning

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辽宁中部地区低能见度天气特征及与气象因素变化规律分析

English Abstract

Analysis of temporal and spatial distribution characteristics of low visibility weather and change rules of meteorological factors in central region of Liaoning

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