基于GIS的乌鲁木齐PM10时空分布与气象因素分析
Temporal-spatial Distribution Features of PM10 in Urumqi on the GIS Basis and Meteorological Factor Analysis
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摘要: 基于GIS空间分析与插值技术, 以乌鲁木齐市2008~2012年PM10监测数据及同期气象数据为依据, 分析其时空分布特征, 研究气象因素对PM10分布的影响。结果表明, 乌鲁木齐市可吸入颗粒物 (PM10) 不同季节浓度变化明显:冬季>春季>夏季、秋季。PM10在不同季节的空间分布也不相同, 这与冬季供暖与工业分布、地理位置有关。PM10浓度分布与风速密切相关, 而与湿度、气温存在一定的非线性相关性。Abstract: By application of GIS and interpolation technologies, on the basis of PM10 monitoring data and meteorological data over the same period in Urumqi from 2008 to 2012, the temporal-spatial distribution features of PM10 is analyzed and the influence of meteorological factors on PM10 distribution is also studied. The results show that the seasonal change of PM10 in Urumqi is obvious with the trend of being highest in winter, higher in spring but lower in summer and autumn. Spatial distribution of PM10 in different seasons is not consistent, closely related to heating supply, industrial distribution and geographic positions. PM10 concentration distribution is correlated with air velocity. However, its relation with temperature and moisture appears in a non-linear manner.
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Key words:
- PM10 /
- Temporal-spatial Distribution /
- Meteorological factors /
- Urumqi
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