| 查看: 627 | 回复: 0 | |||
Unbesiegbar金虫 (正式写手)
|
[交流]
核心刊物最新成果分享-EHP-Satellite-Based Spatiotemporal Trends in PM2.5
|
|
Environmental Health Perspectives 全球反演PM2.5文章请参考我的另一个帖子 http://dx.doi.org/10.1289/ehp.1409481. Background: Three decades of rapid economic development is causing severe and widespread PM2.5 (particulate matter ≤ 2.5 μm) pollution in China. However, research on the health impacts of PM2.5 exposure has been hindered by limited historical PM2.5 concentration data. oBjectives: We estimated ambient PM2.5 concentrations from 2004 to 2013 in China at 0.1° resolution using the most recent satellite data and evaluated model performance with available groundobservations. Methods: We developed a two-stage spatial statistical model using the Moderate Resolution Imaging Spectroradiometer (MODIS) Collection 6 aerosol optical depth (AOD) and assimilated meteorology, land use data, and PM2.5 concentrations from China’s recently established groundmonitoring network. An inverse variance weighting (IVW) approach was developed to combine MODIS Dark Target and Deep Blue AOD to optimize data coverage. We evaluated modelpredicted PM2.5 concentrations from 2004 to early 2014 using ground observations. results: The overall model cross-validation R2 and relative prediction error were 0.79 and 35.6%,respectively. Validation beyond the model year (2013) indicated that it accurately predicted PM2.5concentrations with little bias at the monthly (R2 = 0.73, regression slope = 0.91) and seasonal (R2 = 0.79, regression slope = 0.92) levels. Seasonal variations revealed that winter was the most polluted season and that summer was the cleanest season. Analysis of predicted PM2.5 levels showed a mean annual increase of 1.97 μg/m3 between 2004 and 2007 and a decrease of 0.46 μg/m3 between 2008 and 2013. |
回复此楼» 猜你喜欢
西城快线以南（省实周边土地）地块土壤污染状况初步调查报告
已经有0人回复
-
麻章镇麻志路西侧地块土壤污染状况初步调查报告
已经有0人回复
-
建筑环境与结构工程论文润色/翻译怎么收费?
已经有222人回复
-
湖光快线以南（智慧城一、二、三期）地块土壤污染状况初步调查报告
已经有0人回复
-
同济大学环境学院肖倩课题组招收博士研究生（资格审核制）
已经有53人回复
-
纯模拟无实验课题可发哪些期刊？
已经有4人回复
-
水处理高级氧化技术-1
已经有0人回复
-
水处理高级氧化技术-2
已经有0人回复
-
中山大学博士招生
已经有0人回复
-
投稿EST编辑认为与期刊不符合让转投，我修改后重新投稿的话还会送到原编辑手里吗？
已经有0人回复
-
投稿EST编辑认为与期刊不符合让转投，我修改后重新投稿的话还会送到原编辑手里吗？
已经有0人回复