Comparative analysis of MODIS, MISR, and AERONET climatology over the Middle East and North Africa
Comparative analysis of Multi-angle Imaging SpectroRadiometer (MISR), Moderate Resolution Imaging Spectroradiometer (MODIS), and Aerosol Robotic Network (AERONET) aerosol optical depth (AOD) products is performed over seven AERONET stations located in the Middle East and North Africa for the period...
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ftdoajarticles:oai:doaj.org/article:a94e094be4c640cbac570a4abf291d4f 2023-05-15T13:06:44+02:00 Comparative analysis of MODIS, MISR, and AERONET climatology over the Middle East and North Africa A. Farahat 2019-01-01T00:00:00Z https://doi.org/10.5194/angeo-37-49-2019 https://doaj.org/article/a94e094be4c640cbac570a4abf291d4f EN eng Copernicus Publications https://www.ann-geophys.net/37/49/2019/angeo-37-49-2019.pdf https://doaj.org/toc/0992-7689 https://doaj.org/toc/1432-0576 doi:10.5194/angeo-37-49-2019 0992-7689 1432-0576 https://doaj.org/article/a94e094be4c640cbac570a4abf291d4f Annales Geophysicae, Vol 37, Pp 49-64 (2019) Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 article 2019 ftdoajarticles https://doi.org/10.5194/angeo-37-49-2019 2022-12-31T02:40:14Z Comparative analysis of Multi-angle Imaging SpectroRadiometer (MISR), Moderate Resolution Imaging Spectroradiometer (MODIS), and Aerosol Robotic Network (AERONET) aerosol optical depth (AOD) products is performed over seven AERONET stations located in the Middle East and North Africa for the period of 2000–2015. Sites are categorized into dust, biomass burning, and mixed aerosol conditions. MISR and MODIS AOD agree during high-dust seasons but MODIS tends to underestimate AOD during low-dust seasons. Over dust-dominated sites, MODIS/Terra AODs indicate a negative trend over time, while MODIS/Aqua, MISR, and AERONET depict a positive trend. A deviation between MODIS/Aqua and MODIS/Terra was observed regardless of the geographic location and data sampling. The performance of MODIS is similar over the entire region with ∼64 % of AOD within the <math xmlns="http://www.w3.org/1998/Math/MathML" id="M2" display="inline" overflow="scroll" dspmath="mathml"><mrow><mi mathvariant="normal">Δ</mi><mi mathvariant="italic">τ</mi><mo>=</mo><mo>±</mo><mn mathvariant="normal">0.05</mn><mo>±</mo><mn mathvariant="normal">0.15</mn><msub><mi mathvariant="italic">τ</mi><mi mathvariant="normal">AERO</mi></msub></mrow></math> <svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="118pt" height="13pt" class="svg-formula" dspmath="mathimg" md5hash="0fec85e652595db3573ca58e6b7dfc6a"><svg:image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="angeo-37-49-2019-ie00001.svg" width="118pt" height="13pt" src="angeo-37-49-2019-ie00001.png"/></svg:svg> confidence range. MISR AOD retrievals fall within 84 % of the same confidence range for all sites examined here. Both MISR and MODIS capture aerosol climatology; however few cases were observed where one of the two sensors better captures the climatology over a certain location or AOD range than the other sensor. AERONET Level 2.0 ... Article in Journal/Newspaper Aerosol Robotic Network Directory of Open Access Journals: DOAJ Articles Annales Geophysicae 37 1 49 64 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 |
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Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 A. Farahat Comparative analysis of MODIS, MISR, and AERONET climatology over the Middle East and North Africa |
topic_facet |
Science Q Physics QC1-999 Geophysics. Cosmic physics QC801-809 |
description |
Comparative analysis of Multi-angle Imaging SpectroRadiometer (MISR), Moderate Resolution Imaging Spectroradiometer (MODIS), and Aerosol Robotic Network (AERONET) aerosol optical depth (AOD) products is performed over seven AERONET stations located in the Middle East and North Africa for the period of 2000–2015. Sites are categorized into dust, biomass burning, and mixed aerosol conditions. MISR and MODIS AOD agree during high-dust seasons but MODIS tends to underestimate AOD during low-dust seasons. Over dust-dominated sites, MODIS/Terra AODs indicate a negative trend over time, while MODIS/Aqua, MISR, and AERONET depict a positive trend. A deviation between MODIS/Aqua and MODIS/Terra was observed regardless of the geographic location and data sampling. The performance of MODIS is similar over the entire region with ∼64 % of AOD within the <math xmlns="http://www.w3.org/1998/Math/MathML" id="M2" display="inline" overflow="scroll" dspmath="mathml"><mrow><mi mathvariant="normal">Δ</mi><mi mathvariant="italic">τ</mi><mo>=</mo><mo>±</mo><mn mathvariant="normal">0.05</mn><mo>±</mo><mn mathvariant="normal">0.15</mn><msub><mi mathvariant="italic">τ</mi><mi mathvariant="normal">AERO</mi></msub></mrow></math> <svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="118pt" height="13pt" class="svg-formula" dspmath="mathimg" md5hash="0fec85e652595db3573ca58e6b7dfc6a"><svg:image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="angeo-37-49-2019-ie00001.svg" width="118pt" height="13pt" src="angeo-37-49-2019-ie00001.png"/></svg:svg> confidence range. MISR AOD retrievals fall within 84 % of the same confidence range for all sites examined here. Both MISR and MODIS capture aerosol climatology; however few cases were observed where one of the two sensors better captures the climatology over a certain location or AOD range than the other sensor. AERONET Level 2.0 ... |
format |
Article in Journal/Newspaper |
author |
A. Farahat |
author_facet |
A. Farahat |
author_sort |
A. Farahat |
title |
Comparative analysis of MODIS, MISR, and AERONET climatology over the Middle East and North Africa |
title_short |
Comparative analysis of MODIS, MISR, and AERONET climatology over the Middle East and North Africa |
title_full |
Comparative analysis of MODIS, MISR, and AERONET climatology over the Middle East and North Africa |
title_fullStr |
Comparative analysis of MODIS, MISR, and AERONET climatology over the Middle East and North Africa |
title_full_unstemmed |
Comparative analysis of MODIS, MISR, and AERONET climatology over the Middle East and North Africa |
title_sort |
comparative analysis of modis, misr, and aeronet climatology over the middle east and north africa |
publisher |
Copernicus Publications |
publishDate |
2019 |
url |
https://doi.org/10.5194/angeo-37-49-2019 https://doaj.org/article/a94e094be4c640cbac570a4abf291d4f |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_source |
Annales Geophysicae, Vol 37, Pp 49-64 (2019) |
op_relation |
https://www.ann-geophys.net/37/49/2019/angeo-37-49-2019.pdf https://doaj.org/toc/0992-7689 https://doaj.org/toc/1432-0576 doi:10.5194/angeo-37-49-2019 0992-7689 1432-0576 https://doaj.org/article/a94e094be4c640cbac570a4abf291d4f |
op_doi |
https://doi.org/10.5194/angeo-37-49-2019 |
container_title |
Annales Geophysicae |
container_volume |
37 |
container_issue |
1 |
container_start_page |
49 |
op_container_end_page |
64 |
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1766018301109993472 |