Analysis on cliamte feature of haze days and meteorological elements during 1963 to 2013 in Jinhua(1963~2013年金华市霾日气候特征及其气象影响因子分析)
利用1963~2013年金华市气象观测资料及NCEP/NCAR 2.5°×2.5°格点资料对金华市霾日的气候特征及其气象影响因子进行了统计分析.结果表明:近51 a来金华市霾日数总体呈现上升趋势.2004年以后,空气污染日趋严重,霾日数显著上升,城市热岛效应和干岛效应、霾日持续时间也日趋显著;冬季霾日最多,秋季次之,夏季最少;日平均温度和温度日较差在5.1~15.0 ℃,是出现霾天气最为有利的温度条件;2 m • s-1以下风速不利于大气污染物的扩散和传输,弱风速、地面主导风为偏东风是利于霾形成和维持的风要素条件;日平均气压和日平均气温的变化值小于等于2的条件下易产生霾;日均相对湿度在80%以...
Main Author: | LIANGLiang(梁亮) |
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Format: | Article |
Language: | zho |
Published: |
Zhejiang University Press
2015-12-01
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Series: | Zhejiang Daxue xuebao. Lixue ban |
Subjects: | |
Online Access: | https://doi.org/10.3785/j.issn.1008-9497.2015.Supp.019 |
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