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Cross-section of the RSS. (For a color version of this figure, please see http://www.arm.gov/ docs/documents/technical/conf_9803/harrison-98.pdf.)
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... cloud optical depths and mean droplet radii can be obtained from either MFRSR or RSS data, and a microwave radiometer (Harrison and Min 1996). In Figures 9 and 10, we show these RSS-retrieved quantities for a "textbook" single-layer stratus case at SGP. We emphasize that the low scatter in the pathlengths seen in this case is due to the horizontal homogeneity of this system, and its invariant physical depth through the day. ...
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This study was undertaken to derive and analyze the advanced microwave scanning radiometer-Earth observing satellite (EOS) (AMSR-E) sea surface temperature (SST) footprint associated with the remote sensing systems (RSS) level-2 (L2) product. The footprint, in this case, is characterized by the weight attributed to each 4 × 4 km square contributing...
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... and the SKYNET (Nakajima et al., 1996;2007) 10 networks, both of which utilize sun-sky scanning radiometer instrumentation. Aerosol absorption retrievals have also been demonstrated by Multifilter Rotating Shadowband Radiometer (MFRSR) instruments (Harrison et al., 1994) at VIS (Kassianov et al., 2005) and UV wavelengths (Bigelow et al., 1998;Petters et al., 2003;Krotkov et al., 2005ab) as well as spectrometers (Harrison et al., 1999;Bais et al., 2005;Barnard et al., 2008). The shadowband technique for aerosol absorption retrievals does not require separate calibrations for direct and diffuse measurements and allows more frequent (up 15 to one minute) measurements. ...
Quantifying the aerosol absorption at ultraviolet (UV) wavelengths is important for monitoring air pollution using current (e.g., Aura/OMI) and future (e.g., TROPOMI, TEMPO, GEMS, and Sentinel-4) satellite measurements. Measurements of column atmospheric aerosol absorption (i.e., column effective imaginary refractive index (k), single scattering albedo (SSA), and aerosol absorption optical depth (AAOD)) are performed on the ground by the NASA AERONET in the visible (VIS) and near-infrared (NIR) wavelengths and in the UV-VIS-NIR by the SKYNET networks. Previous comparison studies have focused on visible and NIR wavelengths due to the lack of co-incident measurements of aerosol and gaseous absorption properties in the UV. This study compares the SKYNET-retrieved SSA in the UV with the SSA derived from a combination of AERONET, MFRSR, and Pandora (AMP) retrievals in Seoul, South Korea in spring and summer of 2016. The results show that the spectrally invariant surface albedo assumed in the SKYNET SSA retrievals leads to underestimated SSA compared to AMP values at near UV wavelengths. Re-processed SKYNET inversions using spectrally varying surface albedo, consistent with the AERONET retrieval improves agreement with AMP SSA. The combined AMP inversions allow for separating aerosol and gaseous (NO2 and O3) absorption and provides aerosol retrievals from the shortest UVB (305 nm) through visible to NIR wavelengths (870 nm).
... The initial focus of the QME is upon the spectral region measured by the University of Denver absolute solar transmittance interferometer (ASTI) instrument, from 2000 cm -1 to 10000 cm -1 . Efforts are underway to extend the analyses to 28600 cm -1 using the State University of New York (SUNY) Albany rotating shadowband spectroradiometer (RSS; Harrison et al. 1998). The strategy of this QME is to initially focus upon clear sky, direct beam radiance analyses, and to later extend the study to the total incoming irradiance. ...
... At the NSA Barrow site, the method of Li et al. (2002) was used to determine areal-mean surface albedos for overcast cloudy cases and is dependent upon the availability of high-resolution solar spectral irradiance data from the rotating shadowband spectroradiometer (RSS) (360-1050 nm, 1024 channels), an instrument developed at the Atmospheric Sciences Research Center at the State University of New York in Albany and in operation at the Barrow site during the period of March to August 1999 (Harrison et al. 1998). Single-layer overcast cases were identified at the site through use of cloud radar "quicklooks" and cloud boundary information from the Active Remotely-Sensed Cloud Locations (ARSCL) value-added product. ...
... When available, satellite-observed radiance fields from the Visible Infrared Scanning Radiometer (VIRS) aboard the Tropical Rainfall Measuring Mission satellite at visible and infrared wavelengths were used to identify the phase (water/ice) of the cloud field in the vicinity of the CF. The final screening for selecting cases depended on the availability of high-resolution solar spectral irradiance data from the RSS (360-1050 nm, 1024 channels), an instrument developed at the Atmospheric Sciences Research Center at the State University of New York in Albany and in operation at the CF since August 1997 (Harrison et al. 1998). After analysis of ARM data at the CF from August 1998 until October 2000 days, encompassing all seasons and fulfilling the requisite cloudy conditions, were examined. ...
... The final screening for selecting cases depended on the availability of high-resolution solar spectral irradiance data from the Rotating Shadowband Spectroradiometer (RSS) (360 to 1100nm, 1024 channels). This instrument was developed at the Atmospheric Sciences Research Center at the State University of New York at Albany and has been operating at the CF site since August 1997 (Harrison at al. 1998). The latest version of the MODTRAN4 radiative transfer code (Anderson et al. 1999) was used. ...
