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

• Published in: Atmospheric Chemistry and Physics
• Main Authors: C. E. Sioris, C. A. McLinden, M. W. Shephard, V. E. Fioletov, I. Abboud
• Format: Article in Journal/Newspaper
• Language: English
• Published: Copernicus Publications 2017
• Subjects: Physics; QC1-999; Chemistry; QD1-999; Muskeg River; Aerosol Robotic Network
• Online Access: https://doi.org/10.5194/acp-17-1931-2017; https://doaj.org/article/47fa9dadacaf4612a23541f91eddad38

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 2.5 mass density exists. An increasing trend of similar amplitude (∼ 5 % year −1 ) is observed in this northern mining region using some of the satellite AOD products.