文章基本信息

标题：Influences of the window size of moderate resolution imaging spectroradiometer (MODIS) aerosol optical thickness (AOT) values on particulate matter (PM10) motoring in Klang Valley, Malaysia
本地全文：下载
作者：Jamil Amanollahi ; Ahmad Makmom Abdullah ; Mohammad Firuz Ramli 等
期刊名称：Scientific Research and Essays
印刷版ISSN：1992-2248
出版年度：2012
卷号：7
期号：12
页码：1373-1380
DOI：10.5897/SRE12.040
语种：English
出版社：Academic Journals
摘要：Remote sensing has been shown to be a useful tool in retrieval aerosol optical thickness (AOT) in particulate matter (PM) pollution monitoring. In this study, daily AOT data retrieved from moderate resolution IMAGING spectroradiometer(MODIS) and the amount of PM10 measured at eight air quality monitoring ground stations in Klang Valley from 2004 to 2006 were used. The AOT values consisted of three different average window sizes (WS): (3 × 3) pixels, (5 ´ 5) pixels and (7 × 7) pixels. PM10 mass concentration consists of real-time (hourly) and 24 h mean. Linear correlation coefficients (LCC) were used to determine the best validation result. Best validation results were obtained between AOT WS in (5 × 5) pixels and PM10 mass in 24 h mean. The LCCs in dry season were acquired higher than those in rainy season. The validation results in rainy season were improved when nonlinear correlation coefficients (NLCC) with polynomial equation were used for analysis. This study reveals that the correlation coefficients are dependent on time and location.
关键词：Particulate matter; aerosol optical thickness; real-time; 24 h mean; Klang Valley-Malaysia