June to October Aerosol Optical Depth over the Arctic at Various Spatial and Temporal Scales in MODIS, MAIAC, CALIOP and GOES Data ()
Affiliation(s)
1Department of Atmospheric Sciences, College of Natural Science and Mathematics, University of Alaska Fairbanks, Fairbanks, USA.
2Geophysical Institute, University of Alaska Fairbanks, Fairbanks, USA.
3National Aeronautics and Space Administration, Goddard Space Flight Center, Greenbelt, USA.
4Earth System Science Interdisciplinary Center, University of Maryland, College Park, USA.
ABSTRACT
The accuracy of the
cloud-aerosol lidar with orthogonal polarization (CALIOP), moderate resolution imaging spectroradiometer
(MODIS), Multi-Angle Implementation of Atmospheric Correction (MAIAC), and
Geostationary Operational Environmental Satellite (GOES) aerosol optical depth (AOD) products for the
Arctic north of 59.75°N was examined by means of 35 aerosol robotic
network (AERONET) AOD sites. The assessment for June to October 2006 to 2020
showed MAIAC AOD agreed the best with AERONET AOD; CALIOP AOD differed the strongest from the AERONET AOD. Cross-correlations of CALIOP AOD along the satellite path indicated
that AOD-values 40 km up-and-down the path often failed to represent the
AERONET AOD-values within ±30 min of the overpass in this region dominated by
easterly winds. Typically, CALIOP AOD was
lower than AERONET AOD and MAIAC AOD at the sites, especially, at sites
with mean AOD below 0.1. Generally, MODIS AOD
values exceeded those of MAIAC. Comparison of CALIOP, MAIAC, and MODIS products
resampled on a 0.25° × 0.25° grid revealed differences among the products caused by their
temporal and spatial resolution, sample habit and size. Typically, the MODIS
AOD-product showed the most details in AOD
distribution. Despite differences in AOD-values, all products provided
similar temporal evolution of elevated and lower AOD.
Share and Cite:
Mölders, N. and Friberg, M. (2023) June to October Aerosol Optical Depth over the Arctic at Various Spatial and Temporal Scales in MODIS, MAIAC, CALIOP and GOES Data.
Open Journal of Air Pollution,
12, 1-29. doi:
10.4236/ojap.2023.121001.
Cited by
No relevant information.