Assessment of the aerosol optical depths measured by satellite-based passive remote sensors in the Alberta oil sands region

作者:Sioris Christopher E; McLinden Chris A; Shephard Mark W; Fioletov Vitali E; Abboud Ihab
来源:Atmospheric Chemistry and Physics, 2017, 17(3): 1931-1943.
DOI:10.5194/acp-17-1931-2017

摘要

<jats:p>&lt;p&gt;&lt;strong&gt;Abstract.&lt;/strong&gt; Several satellite aerosol optical depth (AOD) products are assessed in terms of their data quality in the Alberta oil sands region. The instruments consist of MODIS (Moderate Resolution Imaging Spectroradiometer), POLDER (Polarization and Directionality of Earth Reflectances), MISR (Multi-angle Imaging SpectroRadiometer), and AATSR (Advanced Along-Track Scanning Radiometer). The AOD data products are examined in terms of multiplicative and additive biases determined using local Aerosol Robotic Network (AERONET) (AEROCAN) stations. Correlation with ground-based data is used to assess whether the satellite-based AODs capture day-to-day, month-to-month, and spatial variability. The ability of the satellite AOD products to capture interannual variability is assessed at Albian mine and Shell Muskeg River, two neighbouring sites in the northern mining region where a statistically significant positive trend (2002–2015) in PM&lt;sub&gt;2.5&lt;/sub&gt; mass density exists. An increasing trend of similar amplitude (∼ &lt;span class="thinspace"&gt;&lt;/span&gt;5&lt;span class="thinspace"&gt;&lt;/span&gt;%&lt;span class="thinspace"&gt;&lt;/span&gt;year&lt;sup&gt;−1&lt;/sup&gt;) is observed in this northern mining region using some of the satellite AOD products.&lt;/p&gt; </jats:p>

  • 出版日期2017-2-9