Effect of Wind Speed on Moderate Resolution Imaging Spectroradiometer (MODIS) Aerosol Optical Depth over the North Pacific
The surface-wind speed influences on aerosol optical depth (AOD), derived from the Moderate Resolution Imaging Spectroradiometer (MODIS) Aqua daily observations over the central North Pacific during the period 2003–2016, have been investigated in this study. The cloud coverage is relatively low over...
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ftmdpi:oai:mdpi.com:/2073-4433/9/2/60/ 2023-08-20T03:59:11+02:00 Effect of Wind Speed on Moderate Resolution Imaging Spectroradiometer (MODIS) Aerosol Optical Depth over the North Pacific Lena Merkulova Eyal Freud E. Mårtensson E. Nilsson Paul Glantz agris 2018-02-09 application/pdf https://doi.org/10.3390/atmos9020060 EN eng Multidisciplinary Digital Publishing Institute Biosphere/Hydrosphere/Land–Atmosphere Interactions https://dx.doi.org/10.3390/atmos9020060 https://creativecommons.org/licenses/by/4.0/ Atmosphere; Volume 9; Issue 2; Pages: 60 AOD surface-wind speed satellite retrievals sea salt ammonium sulfate white caps Text 2018 ftmdpi https://doi.org/10.3390/atmos9020060 2023-07-31T21:23:07Z The surface-wind speed influences on aerosol optical depth (AOD), derived from the Moderate Resolution Imaging Spectroradiometer (MODIS) Aqua daily observations over the central North Pacific during the period 2003–2016, have been investigated in this study. The cloud coverage is relatively low over the present investigation area compared to other marine areas, which favors AOD derived from passive remote sensing from space. In this study, we have combined MODIS AOD with 2 m wind speed (U2m) on a satellite-pixel basis, which has been interpolated from National Centers for Environmental Prediction (NCEP) reanalysis. In addition, daily averaged AOD derived from Aerosol Robotic Network (AERONET) measurements in the free-troposphere at the Mauna Loa Observatory (3397 m above sea level), Hawaii, was subtracted from the MODIS column AOD values. The latter was to reduce the contribution of aerosols above the planetary boundary layer. This study shows relatively strong power-law relationships between MODIS mean AOD and surface-wind speed for marine background conditions in summer, fall and winter of the current period. However, previous established relationships between AOD and surface-wind speed deviate substantially. Even so, for similar marine conditions the present relationship agrees reasonable well with a power-law relationship derived for north-east Atlantic conditions. The present MODIS retrievals of AOD in the marine atmosphere agree reasonably well with ground-based remote sensing of AOD. Text Aerosol Robotic Network North East Atlantic MDPI Open Access Publishing Pacific Atmosphere 9 2 60 |
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Open Polar |
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MDPI Open Access Publishing |
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ftmdpi |
language |
English |
topic |
AOD surface-wind speed satellite retrievals sea salt ammonium sulfate white caps |
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AOD surface-wind speed satellite retrievals sea salt ammonium sulfate white caps Lena Merkulova Eyal Freud E. Mårtensson E. Nilsson Paul Glantz Effect of Wind Speed on Moderate Resolution Imaging Spectroradiometer (MODIS) Aerosol Optical Depth over the North Pacific |
topic_facet |
AOD surface-wind speed satellite retrievals sea salt ammonium sulfate white caps |
description |
The surface-wind speed influences on aerosol optical depth (AOD), derived from the Moderate Resolution Imaging Spectroradiometer (MODIS) Aqua daily observations over the central North Pacific during the period 2003–2016, have been investigated in this study. The cloud coverage is relatively low over the present investigation area compared to other marine areas, which favors AOD derived from passive remote sensing from space. In this study, we have combined MODIS AOD with 2 m wind speed (U2m) on a satellite-pixel basis, which has been interpolated from National Centers for Environmental Prediction (NCEP) reanalysis. In addition, daily averaged AOD derived from Aerosol Robotic Network (AERONET) measurements in the free-troposphere at the Mauna Loa Observatory (3397 m above sea level), Hawaii, was subtracted from the MODIS column AOD values. The latter was to reduce the contribution of aerosols above the planetary boundary layer. This study shows relatively strong power-law relationships between MODIS mean AOD and surface-wind speed for marine background conditions in summer, fall and winter of the current period. However, previous established relationships between AOD and surface-wind speed deviate substantially. Even so, for similar marine conditions the present relationship agrees reasonable well with a power-law relationship derived for north-east Atlantic conditions. The present MODIS retrievals of AOD in the marine atmosphere agree reasonably well with ground-based remote sensing of AOD. |
format |
Text |
author |
Lena Merkulova Eyal Freud E. Mårtensson E. Nilsson Paul Glantz |
author_facet |
Lena Merkulova Eyal Freud E. Mårtensson E. Nilsson Paul Glantz |
author_sort |
Lena Merkulova |
title |
Effect of Wind Speed on Moderate Resolution Imaging Spectroradiometer (MODIS) Aerosol Optical Depth over the North Pacific |
title_short |
Effect of Wind Speed on Moderate Resolution Imaging Spectroradiometer (MODIS) Aerosol Optical Depth over the North Pacific |
title_full |
Effect of Wind Speed on Moderate Resolution Imaging Spectroradiometer (MODIS) Aerosol Optical Depth over the North Pacific |
title_fullStr |
Effect of Wind Speed on Moderate Resolution Imaging Spectroradiometer (MODIS) Aerosol Optical Depth over the North Pacific |
title_full_unstemmed |
Effect of Wind Speed on Moderate Resolution Imaging Spectroradiometer (MODIS) Aerosol Optical Depth over the North Pacific |
title_sort |
effect of wind speed on moderate resolution imaging spectroradiometer (modis) aerosol optical depth over the north pacific |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2018 |
url |
https://doi.org/10.3390/atmos9020060 |
op_coverage |
agris |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Aerosol Robotic Network North East Atlantic |
genre_facet |
Aerosol Robotic Network North East Atlantic |
op_source |
Atmosphere; Volume 9; Issue 2; Pages: 60 |
op_relation |
Biosphere/Hydrosphere/Land–Atmosphere Interactions https://dx.doi.org/10.3390/atmos9020060 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/atmos9020060 |
container_title |
Atmosphere |
container_volume |
9 |
container_issue |
2 |
container_start_page |
60 |
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1774719035432239104 |