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DOI | 10.1002/env.2273 |
Assessing exceedance of ozone standards: a space-time downscaler for fourth highest ozone concentrations | |
Berrocal, V. J.1; Gelfand, A. E.2; Holland, D. M.3 | |
发表日期 | 2014-06-01 |
ISSN | 1180-4009 |
卷号 | 25期号:4页码:279-291 |
英文摘要 | The US Environmental Protection Agency is required to monitor, regulate, and set national ambient air quality standards for ozone. To investigate ozone exposure, the Environmental Protection Agency utilizes monitoring devices along with estimates of gridded ground level ozone concentration produced by a deterministic air quality model, the Community Multiscale Air Quality Model. These two sources of information enable inference regarding spatial exceedance of the National Ambient Air Quality Standard for ozone, which is given in terms of the level of the annual fourth highest ozone concentration.Here, we extend previous downscaling work to propose a spatial fourth highest extreme value downscaling model to assimilate annual fourth highest ozone concentration data at geo-coded locations with estimates at grid cell level derived from the Community Multiscale Air Quality Model model output. The resulting inference enables us to make probabilistic statements, with associated uncertainty, about the spatial variation in the chance of exceeding the standard. We apply our approach to data in the Eastern USA during years 2001-2008 and compare its predictive performance to that of downscaler models based on Gaussian processes applied to daily data. Copyright (c) 2014 John Wiley & Sons, Ltd. |
英文关键词 | change of support;data fusion;hierarchical modeling;Markov chain Monte Carlo;national ambient air quality standards (NAAQS);r-th largest order statistic distribution |
语种 | 英语 |
WOS记录号 | WOS:000337517100007 |
来源期刊 | ENVIRONMETRICS
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来源机构 | 美国环保署 |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/59807 |
作者单位 | 1.Univ Michigan, Dept Biostat, Ann Arbor, MI 48105 USA; 2.Duke Univ, Dept Stat Sci, Durham, NC 27707 USA; 3.US EPA, Natl Exposure Res Lab, Res Triangle Pk, NC 27709 USA |
推荐引用方式 GB/T 7714 | Berrocal, V. J.,Gelfand, A. E.,Holland, D. M.. Assessing exceedance of ozone standards: a space-time downscaler for fourth highest ozone concentrations[J]. 美国环保署,2014,25(4):279-291. |
APA | Berrocal, V. J.,Gelfand, A. E.,&Holland, D. M..(2014).Assessing exceedance of ozone standards: a space-time downscaler for fourth highest ozone concentrations.ENVIRONMETRICS,25(4),279-291. |
MLA | Berrocal, V. J.,et al."Assessing exceedance of ozone standards: a space-time downscaler for fourth highest ozone concentrations".ENVIRONMETRICS 25.4(2014):279-291. |
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