Assessment of 10 Year Record of Aerosol Optical Depth from OMI UV Observations
The Ozone Monitoring Instrument (OMI) onboard the EOS-Aura satellite provides information on aerosol optical properties by making use of the large sensitivity to aerosol absorption in the near-ultraviolet (UV) spectral region. Another important advantage of using near UV observations for aerosol cha...
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ftnasantrs:oai:casi.ntrs.nasa.gov:20150000341 2023-05-15T13:06:11+02:00 Assessment of 10 Year Record of Aerosol Optical Depth from OMI UV Observations Ahn, Changwoo Torres, Omar Jethva, Hiren Unclassified, Unlimited, Publicly available September 15, 2014 application/pdf http://hdl.handle.net/2060/20150000341 unknown Document ID: 20150000341 http://hdl.handle.net/2060/20150000341 Copyright, Distribution as joint owner in the copyright CASI Geophysics Optics GSFC-E-DAA-TN18588 EOS Aura Science Team Meeting; 15-18 Sept. 2014; College Park, MD; United States 2014 ftnasantrs 2019-07-21T06:12:17Z The Ozone Monitoring Instrument (OMI) onboard the EOS-Aura satellite provides information on aerosol optical properties by making use of the large sensitivity to aerosol absorption in the near-ultraviolet (UV) spectral region. Another important advantage of using near UV observations for aerosol characterization is the low surface albedo of all terrestrial surfaces in this spectral region that reduces retrieval errors associated with land surface reflectance characterization. In spite of the 13 24 square kilometers coarse sensor footprint, the OMI near UV aerosol algorithm (OMAERUV) retrieves aerosol optical depth (AOD) and single-scattering albedo under cloud-free conditions from radiance measurements at 354 and 388 nanometers. We present validation results of OMI AOD against space and time collocated Aerosol Robotic Network measured AOD values over multiple stations representing major aerosol episodes and regimes. OMAERUV's performance is also evaluated with respect to those of the Aqua-MODIS Deep Blue and Terra-MISR AOD algorithms over arid and semi-arid regions in Northern Africa. The outcome of the evaluation analysis indicates that in spite of the "row anomaly" problem, affecting the sensor since mid-2007, the long-term aerosol record shows remarkable sensor stability. Other/Unknown Material Aerosol Robotic Network NASA Technical Reports Server (NTRS) |
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NASA Technical Reports Server (NTRS) |
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topic |
Geophysics Optics |
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Geophysics Optics Ahn, Changwoo Torres, Omar Jethva, Hiren Assessment of 10 Year Record of Aerosol Optical Depth from OMI UV Observations |
topic_facet |
Geophysics Optics |
description |
The Ozone Monitoring Instrument (OMI) onboard the EOS-Aura satellite provides information on aerosol optical properties by making use of the large sensitivity to aerosol absorption in the near-ultraviolet (UV) spectral region. Another important advantage of using near UV observations for aerosol characterization is the low surface albedo of all terrestrial surfaces in this spectral region that reduces retrieval errors associated with land surface reflectance characterization. In spite of the 13 24 square kilometers coarse sensor footprint, the OMI near UV aerosol algorithm (OMAERUV) retrieves aerosol optical depth (AOD) and single-scattering albedo under cloud-free conditions from radiance measurements at 354 and 388 nanometers. We present validation results of OMI AOD against space and time collocated Aerosol Robotic Network measured AOD values over multiple stations representing major aerosol episodes and regimes. OMAERUV's performance is also evaluated with respect to those of the Aqua-MODIS Deep Blue and Terra-MISR AOD algorithms over arid and semi-arid regions in Northern Africa. The outcome of the evaluation analysis indicates that in spite of the "row anomaly" problem, affecting the sensor since mid-2007, the long-term aerosol record shows remarkable sensor stability. |
format |
Other/Unknown Material |
author |
Ahn, Changwoo Torres, Omar Jethva, Hiren |
author_facet |
Ahn, Changwoo Torres, Omar Jethva, Hiren |
author_sort |
Ahn, Changwoo |
title |
Assessment of 10 Year Record of Aerosol Optical Depth from OMI UV Observations |
title_short |
Assessment of 10 Year Record of Aerosol Optical Depth from OMI UV Observations |
title_full |
Assessment of 10 Year Record of Aerosol Optical Depth from OMI UV Observations |
title_fullStr |
Assessment of 10 Year Record of Aerosol Optical Depth from OMI UV Observations |
title_full_unstemmed |
Assessment of 10 Year Record of Aerosol Optical Depth from OMI UV Observations |
title_sort |
assessment of 10 year record of aerosol optical depth from omi uv observations |
publishDate |
2014 |
url |
http://hdl.handle.net/2060/20150000341 |
op_coverage |
Unclassified, Unlimited, Publicly available |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_source |
CASI |
op_relation |
Document ID: 20150000341 http://hdl.handle.net/2060/20150000341 |
op_rights |
Copyright, Distribution as joint owner in the copyright |
_version_ |
1765995401515630592 |