Intercomparison of Aerosol Single-Scattering Albedo Derived from AERONET Surface Radiometers and LARGE in Situ Aircraft Profiles During the 2011 DRAGON-MD and DISCOVER-AQ Experiments
Single-scattering albedo (SSA) retrievals obtained with CIMEL Sun-sky radiometers from the Aerosol Robotic Network (AERONET) aerosol monitoring network were used to make comparisons with simultaneous in situ sampling from aircraft profiles carried out by the NASA Langley Aerosol Group Experiment (LA...
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ftnasantrs:oai:casi.ntrs.nasa.gov:20150021884 2023-05-15T13:06:35+02:00 Intercomparison of Aerosol Single-Scattering Albedo Derived from AERONET Surface Radiometers and LARGE in Situ Aircraft Profiles During the 2011 DRAGON-MD and DISCOVER-AQ Experiments Winstead, E. L. Slutsker, I. Giles, D. M. Sinyuk, A. Eck, T. F. Thornhill, K. L. Smirnov, A. Ziemba, L. D. Kenny, P. R. Anderson, B. E. Beyersdorf, A. J. Schafer, J. S. Holben, B. N. Unclassified, Unlimited, Publicly available June 17, 2014 application/pdf http://hdl.handle.net/2060/20150021884 unknown Document ID: 20150021884 http://hdl.handle.net/2060/20150021884 Copyright, Distribution as joint owner in the copyright CASI Earth Resources and Remote Sensing GSFC-E-DAA-TN22548 Journal of Geophysical Research: Atmospheres(ISSN 2169-8996); Volume 119; Issue 12; 7439-7452 2014 ftnasantrs 2016-03-12T23:54:53Z Single-scattering albedo (SSA) retrievals obtained with CIMEL Sun-sky radiometers from the Aerosol Robotic Network (AERONET) aerosol monitoring network were used to make comparisons with simultaneous in situ sampling from aircraft profiles carried out by the NASA Langley Aerosol Group Experiment (LARGE) team in the summer of 2011 during the coincident DRAGON-MD (Distributed Regional Aerosol Gridded Observational Network-Maryland) and DISCOVER-AQ (Deriving Information on Surface conditions from Column and Vertically Resolved Observations Relevant to Air Quality) experiments. The single-scattering albedos (interpolated to 550 nm) derived from AERONET measurements for aerosol optical depth (AOD) at 440 nm (is) greater than 0.4 (mean SSA: 0.979) were on average 0.011 lower than the values derived from the LARGE profile measurements (mean SSA: 0.99). The maximum difference observed was 0.023 with all the observed differences within the combined uncertainty for the stated SSA accuracy (0.03 for AERONET; 0.02 for LARGE). Single-scattering albedo averages were also analyzed for lower aerosol loading conditions (AOD (is) greater than 0.2) and a dependence on aerosol optical depth was noted with significantly lower single-scattering albedos observed for lower AOD in both AERONET and LARGE data sets. Various explanations for the SSA trend were explored based on other retrieval products including volume median radius and imaginary refractive index as well as column water vapor measurements. Additionally, these SSA trends with AOD were evaluated for one of the DRAGON-MD study sites, Goddard Space Flight Center, and two other Mid-Atlantic AERONET sites over the long-term record dating to 1999. Other/Unknown Material Aerosol Robotic Network NASA Technical Reports Server (NTRS) |
institution |
Open Polar |
collection |
NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
unknown |
topic |
Earth Resources and Remote Sensing |
spellingShingle |
Earth Resources and Remote Sensing Winstead, E. L. Slutsker, I. Giles, D. M. Sinyuk, A. Eck, T. F. Thornhill, K. L. Smirnov, A. Ziemba, L. D. Kenny, P. R. Anderson, B. E. Beyersdorf, A. J. Schafer, J. S. Holben, B. N. Intercomparison of Aerosol Single-Scattering Albedo Derived from AERONET Surface Radiometers and LARGE in Situ Aircraft Profiles During the 2011 DRAGON-MD and DISCOVER-AQ Experiments |
topic_facet |
Earth Resources and Remote Sensing |
description |
Single-scattering albedo (SSA) retrievals obtained with CIMEL Sun-sky radiometers from the Aerosol Robotic Network (AERONET) aerosol monitoring network were used to make comparisons with simultaneous in situ sampling from aircraft profiles carried out by the NASA Langley Aerosol Group Experiment (LARGE) team in the summer of 2011 during the coincident DRAGON-MD (Distributed Regional Aerosol Gridded Observational Network-Maryland) and DISCOVER-AQ (Deriving Information on Surface conditions from Column and Vertically Resolved Observations Relevant to Air Quality) experiments. The single-scattering albedos (interpolated to 550 nm) derived from AERONET measurements for aerosol optical depth (AOD) at 440 nm (is) greater than 0.4 (mean SSA: 0.979) were on average 0.011 lower than the values derived from the LARGE profile measurements (mean SSA: 0.99). The maximum difference observed was 0.023 with all the observed differences within the combined uncertainty for the stated SSA accuracy (0.03 for AERONET; 0.02 for LARGE). Single-scattering albedo averages were also analyzed for lower aerosol loading conditions (AOD (is) greater than 0.2) and a dependence on aerosol optical depth was noted with significantly lower single-scattering albedos observed for lower AOD in both AERONET and LARGE data sets. Various explanations for the SSA trend were explored based on other retrieval products including volume median radius and imaginary refractive index as well as column water vapor measurements. Additionally, these SSA trends with AOD were evaluated for one of the DRAGON-MD study sites, Goddard Space Flight Center, and two other Mid-Atlantic AERONET sites over the long-term record dating to 1999. |
format |
Other/Unknown Material |
author |
Winstead, E. L. Slutsker, I. Giles, D. M. Sinyuk, A. Eck, T. F. Thornhill, K. L. Smirnov, A. Ziemba, L. D. Kenny, P. R. Anderson, B. E. Beyersdorf, A. J. Schafer, J. S. Holben, B. N. |
author_facet |
Winstead, E. L. Slutsker, I. Giles, D. M. Sinyuk, A. Eck, T. F. Thornhill, K. L. Smirnov, A. Ziemba, L. D. Kenny, P. R. Anderson, B. E. Beyersdorf, A. J. Schafer, J. S. Holben, B. N. |
author_sort |
Winstead, E. L. |
title |
Intercomparison of Aerosol Single-Scattering Albedo Derived from AERONET Surface Radiometers and LARGE in Situ Aircraft Profiles During the 2011 DRAGON-MD and DISCOVER-AQ Experiments |
title_short |
Intercomparison of Aerosol Single-Scattering Albedo Derived from AERONET Surface Radiometers and LARGE in Situ Aircraft Profiles During the 2011 DRAGON-MD and DISCOVER-AQ Experiments |
title_full |
Intercomparison of Aerosol Single-Scattering Albedo Derived from AERONET Surface Radiometers and LARGE in Situ Aircraft Profiles During the 2011 DRAGON-MD and DISCOVER-AQ Experiments |
title_fullStr |
Intercomparison of Aerosol Single-Scattering Albedo Derived from AERONET Surface Radiometers and LARGE in Situ Aircraft Profiles During the 2011 DRAGON-MD and DISCOVER-AQ Experiments |
title_full_unstemmed |
Intercomparison of Aerosol Single-Scattering Albedo Derived from AERONET Surface Radiometers and LARGE in Situ Aircraft Profiles During the 2011 DRAGON-MD and DISCOVER-AQ Experiments |
title_sort |
intercomparison of aerosol single-scattering albedo derived from aeronet surface radiometers and large in situ aircraft profiles during the 2011 dragon-md and discover-aq experiments |
publishDate |
2014 |
url |
http://hdl.handle.net/2060/20150021884 |
op_coverage |
Unclassified, Unlimited, Publicly available |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_source |
CASI |
op_relation |
Document ID: 20150021884 http://hdl.handle.net/2060/20150021884 |
op_rights |
Copyright, Distribution as joint owner in the copyright |
_version_ |
1766011804854517760 |