Relationship Between Aerosol Optical Depth and Particulate Matter Over Singapore: Effects of Aerosol Vertical Distributions
As part of the Seven Southeast Asian Studies (7SEAS) program, an Aerosol Robotic Network (AERONET) sun photometer and a Micro-Pulse Lidar Network (MPLNET) instrument have been deployed at Singapore to study the regional aerosol environment of the Maritime Continent (MC). In addition, the Navy Aeroso...
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ftnasantrs:oai:casi.ntrs.nasa.gov:20170005837 2023-05-15T13:06:12+02:00 Relationship Between Aerosol Optical Depth and Particulate Matter Over Singapore: Effects of Aerosol Vertical Distributions Welton, Ellsworth J. Hyer, Edward J. Campbell, James Chew, Boo Ning Salinas, Santo V. Reid, Jeffrey S. Holben, Brent N. Liew, Soo Chin Unclassified, Unlimited, Publicly available November 2016 application/pdf http://hdl.handle.net/2060/20170005837 unknown Document ID: 20170005837 http://hdl.handle.net/2060/20170005837 Copyright, Distribution as joint owner in the copyright CASI Environment Pollution GSFC-E-DAA-TN43614 Aerosol and Air Quality Research (ISSN 1680-8584) (e-ISSN 2071-1409); 16; 11; 2818-2830 2016 ftnasantrs 2019-07-20T23:31:24Z As part of the Seven Southeast Asian Studies (7SEAS) program, an Aerosol Robotic Network (AERONET) sun photometer and a Micro-Pulse Lidar Network (MPLNET) instrument have been deployed at Singapore to study the regional aerosol environment of the Maritime Continent (MC). In addition, the Navy Aerosol Analysis and Prediction System (NAAPS) is used to model aerosol transport over the region. From 24 September 2009 to 31 March 2011, the relationships between ground-, satellite- and model-based aerosol optical depth (AOD) and particulate matter with aerodynamic equivalent diameters less than 2.5 microns (PM2.5) for air quality applications are investigated. When MPLNET-derived aerosol scale heights are applied to normalize AOD for comparison with surface PM2.5 data, the empirical relationships are shown to improve with an increased 11%, 10% and 5% in explained variances, for AERONET, MODIS and NAAPS respectively. The ratios of root mean square errors to standard deviations for the relationships also show corresponding improvements of 8%, 6% and 2%. Aerosol scale heights are observed to be bimodal with a mode below and another above the strongly-capped/deep near-surface layer (SCD; 0-1.35 km). Aerosol extinctions within the SCD layer are well-correlated with surface PM2.5 concentrations, possibly due to strong vertical mixing in the region. Other/Unknown Material Aerosol Robotic Network NASA Technical Reports Server (NTRS) |
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NASA Technical Reports Server (NTRS) |
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Environment Pollution |
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Environment Pollution Welton, Ellsworth J. Hyer, Edward J. Campbell, James Chew, Boo Ning Salinas, Santo V. Reid, Jeffrey S. Holben, Brent N. Liew, Soo Chin Relationship Between Aerosol Optical Depth and Particulate Matter Over Singapore: Effects of Aerosol Vertical Distributions |
topic_facet |
Environment Pollution |
description |
As part of the Seven Southeast Asian Studies (7SEAS) program, an Aerosol Robotic Network (AERONET) sun photometer and a Micro-Pulse Lidar Network (MPLNET) instrument have been deployed at Singapore to study the regional aerosol environment of the Maritime Continent (MC). In addition, the Navy Aerosol Analysis and Prediction System (NAAPS) is used to model aerosol transport over the region. From 24 September 2009 to 31 March 2011, the relationships between ground-, satellite- and model-based aerosol optical depth (AOD) and particulate matter with aerodynamic equivalent diameters less than 2.5 microns (PM2.5) for air quality applications are investigated. When MPLNET-derived aerosol scale heights are applied to normalize AOD for comparison with surface PM2.5 data, the empirical relationships are shown to improve with an increased 11%, 10% and 5% in explained variances, for AERONET, MODIS and NAAPS respectively. The ratios of root mean square errors to standard deviations for the relationships also show corresponding improvements of 8%, 6% and 2%. Aerosol scale heights are observed to be bimodal with a mode below and another above the strongly-capped/deep near-surface layer (SCD; 0-1.35 km). Aerosol extinctions within the SCD layer are well-correlated with surface PM2.5 concentrations, possibly due to strong vertical mixing in the region. |
format |
Other/Unknown Material |
author |
Welton, Ellsworth J. Hyer, Edward J. Campbell, James Chew, Boo Ning Salinas, Santo V. Reid, Jeffrey S. Holben, Brent N. Liew, Soo Chin |
author_facet |
Welton, Ellsworth J. Hyer, Edward J. Campbell, James Chew, Boo Ning Salinas, Santo V. Reid, Jeffrey S. Holben, Brent N. Liew, Soo Chin |
author_sort |
Welton, Ellsworth J. |
title |
Relationship Between Aerosol Optical Depth and Particulate Matter Over Singapore: Effects of Aerosol Vertical Distributions |
title_short |
Relationship Between Aerosol Optical Depth and Particulate Matter Over Singapore: Effects of Aerosol Vertical Distributions |
title_full |
Relationship Between Aerosol Optical Depth and Particulate Matter Over Singapore: Effects of Aerosol Vertical Distributions |
title_fullStr |
Relationship Between Aerosol Optical Depth and Particulate Matter Over Singapore: Effects of Aerosol Vertical Distributions |
title_full_unstemmed |
Relationship Between Aerosol Optical Depth and Particulate Matter Over Singapore: Effects of Aerosol Vertical Distributions |
title_sort |
relationship between aerosol optical depth and particulate matter over singapore: effects of aerosol vertical distributions |
publishDate |
2016 |
url |
http://hdl.handle.net/2060/20170005837 |
op_coverage |
Unclassified, Unlimited, Publicly available |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_source |
CASI |
op_relation |
Document ID: 20170005837 http://hdl.handle.net/2060/20170005837 |
op_rights |
Copyright, Distribution as joint owner in the copyright |
_version_ |
1765995989444853760 |