The Granite Island Aerosol Robotic Network (AERONET) location became a new ground-based remote sensing aerosol site in 2018, and is the first site to collect aerosol data in Michigan’s Upper Peninsula using a Cimel sun photometer. The purpose of this study was to analyze the first complete year (2019) of AERONET data collected at Granite Island, Michigan, and to seek explanations for sudden increases in aerosol optical depth (AOD) values. The Moderate Resolution Imaging Spectroradiometer (MODIS) satellite imagery, solar irradiance data, and meteorological data were used in conjunction with AERONET data for further validation. Granite Island had fairly low AOD levels during 2019, with a few exceptions. The highest AOD levels of the year were measured on July 7, 2019 and coincided with distant wildfires adding particulates to the air. MODIS satellite imagery and solar irradiance data corresponded with the short-term high AOD levels observed at Granite Island, validating the AERONET measurements.
Hoffmann, Elizabeth; Denn, Fred; Fabbri, Bryan; and Ziegler, Susy S.
"Aerosol Concentration and Atmospheric Conditions: A Case Study at Granite Island, Michigan,"
The Geographical Bulletin: Vol. 63:
3, Article 3.
Available at: https://digitalcommons.kennesaw.edu/thegeographicalbulletin/vol63/iss3/3