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Proceedings Paper

New Shortwave Array Spectroradiometer-Hemispheric (SAS-He): hyperspectral design and initial applications
Author(s): Evgueni Kassianov; Connor Flynn; James Barnard; Brian Ermold; Larry Berg
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Paper Abstract

Aerosol optical depth (AOD) derived from hyperspectral measurements can serve as an invaluable input for simultaneous retrievals of particle size distributions and major trace gases. The required hyperspectral measurements are provided by a new ground-based radiometer, the so-called Shortwave Array Spectroradiometer-Hemispheric (SAS-He), recently developed with support from the Department of Energy (DOE) Office Atmospheric Radiation Measurement (ARM) Program. The SAS-He has wide spectral coverage (350-1700nm) and high spectral resolution: about 2.4 nm and 6 nm within 350-1000 nm and 970-1700 nm spectral ranges, respectively. To illustrate an initial performance of the SAS-He, we take advantage of integrated dataset collected during the ARM-supported Two-Column Aerosol Project (TCAP) over the US coastal region (Cape Cod, Massachusetts). This dataset includes AODs derived using data from Aerosol Robotic Network (AERONET) sunphotometer and Multi-Filter Rotating Shadowband Radiometer (MFRSR). We demonstrate that, on average, the SAS-He AODs closely match the MFRSR and AERONET AODs in the ultraviolet and visible spectral ranges for this area with highly variable AOD. Also, we discuss corrections of SAS-He total optical depth for gas absorption in the near-infrared spectral range and their operational implementation

Paper Details

Date Published: 19 October 2016
PDF: 6 pages
Proc. SPIE 10001, Remote Sensing of Clouds and the Atmosphere XXI, 100010D (19 October 2016); doi: 10.1117/12.2241203
Show Author Affiliations
Evgueni Kassianov, Pacific Northwest National Lab. (United States)
Connor Flynn, Pacific Northwest National Lab. (United States)
James Barnard, Univ. of Nevada, Reno (United States)
Brian Ermold, Pacific Northwest National Lab. (United States)
Larry Berg, Pacific Northwest National Lab. (United States)


Published in SPIE Proceedings Vol. 10001:
Remote Sensing of Clouds and the Atmosphere XXI
Adolfo Comerón; Evgueni I. Kassianov; Klaus Schäfer, Editor(s)

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