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12 September 2021 Two Decades of Ground-based Multisensor AOD Measurements at US Continental Site: Acquisition and Merger
Evgueni I. Kassianov, Gabriel Gibler, Erol Cromwell, Justin Monroe, Laura D. Riihimaki, Connor Flynn, James Barnard, Joseph J. Michalsky, Gary Hodges, Yan Shi, Jennifer M. Comstock
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Proceedings Volume 11859, Remote Sensing of Clouds and the Atmosphere XXVI; 118590M (2021) https://doi.org/10.1117/12.2600587
Event: SPIE Remote Sensing, 2021, Online Only
Abstract
Long-term records of aerosol optical depth (AOD) with high quality, suitable temporal continuity and spatial coverage are of immense interest to climate-related research activities. Both satellite- and ground-based measurements of AOD are typically provided by instruments with different designs, and distinct data acquisition and processing schemes. Thus, the corresponding AOD records likely have different accuracy, spatial coverage, and temporal resolution. Several studies have been focused on the synergy of multi-sensor satellite AOD products. Here we combine multi-year (1997-2018) AOD records available from four collocated ground-based instruments deployed at the mid-continental Southern Great Plains (SGP) Central Facility supported by the U.S. Department of Energy Atmospheric Radiation Measurement (ARM) Program. We demonstrate how to minimize drawbacks (patchy spots) and to maintain benefits (high quality) of these records. Our demonstration finds a combined AOD obtained at two wavelengths (500 and 870 nm), with high temporal resolution (1-min), and provides the user with an estimate of the AOD uncertainty. Finally, we highlight expected applications of the merged dataset and its future extensions.
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Evgueni I. Kassianov, Gabriel Gibler, Erol Cromwell, Justin Monroe, Laura D. Riihimaki, Connor Flynn, James Barnard, Joseph J. Michalsky, Gary Hodges, Yan Shi, and Jennifer M. Comstock "Two Decades of Ground-based Multisensor AOD Measurements at US Continental Site: Acquisition and Merger", Proc. SPIE 11859, Remote Sensing of Clouds and the Atmosphere XXVI, 118590M (12 September 2021); https://doi.org/10.1117/12.2600587
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KEYWORDS
Satellites
Temporal resolution
Aerosols
Climatology
Data acquisition
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