Trans-Atlantic Connections between North African Dust Flux and Tree Growth in the Florida Keys, United States
Atmospheric mineral aerosols include multiple, interrelated processes and feedbacks within the context of land-atmosphere interactions and thus are poorly understood. As the largest dust source in the world, North Africa supplies mineral dust aerosols each year to the Caribbean region and southeaste...
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ftsouthmissispun:oai:aquila.usm.edu:fac_pubs-18970 2023-07-30T03:55:33+02:00 Trans-Atlantic Connections between North African Dust Flux and Tree Growth in the Florida Keys, United States Harley, Grant L. King, James Maxwell, Justin T. 2017-08-01T07:00:00Z https://aquila.usm.edu/fac_pubs/17623 http://lynx.lib.usm.edu/login?URL=https://journals.ametsoc.org/downloadpdf/journals/eint/21/7/ei-d-16-0035.1.pdf unknown The Aquila Digital Community https://aquila.usm.edu/fac_pubs/17623 http://lynx.lib.usm.edu/login?URL=https://journals.ametsoc.org/downloadpdf/journals/eint/21/7/ei-d-16-0035.1.pdf Faculty Publications Atmosphere Tropics Dust or dust storms text 2017 ftsouthmissispun 2023-07-15T18:54:00Z Atmospheric mineral aerosols include multiple, interrelated processes and feedbacks within the context of land-atmosphere interactions and thus are poorly understood. As the largest dust source in the world, North Africa supplies mineral dust aerosols each year to the Caribbean region and southeastern United States that alter cloud processes, ocean productivity, soil development, and the radiation budget. This study uses a suite of Earth Observation and ground-based analyses to reveal a potential novel effect of atmospheric aerosols on Pinus elliottii var. densa cambial growth during the 2010 CE growing season from the Florida Keys. Over the Florida Keys region, the Earth Observation products captured increased aerosol optical thickness with a clear geographical connection to mineral dust aerosols transported from northern Africa. The MODIS Terra and Aqua products corroborated increased Ozone Monitoring Instrument (OMI) aerosol optical thickness values. Anomalously high Aerosol Robotic Network aerosol optical depth data corresponding with low angstrom ngstrom coefficients confirm the presence of transported mineral dust aerosols during the period circa 4-20 July 2010. The fraction of photosynthetically absorbed radiation over the region during July 2010 experienced an anomalous decrease, concurrent with reduced incoming total and direct solar radiation resulting in a reduced growth response in P. elliottii. The authors pose one of the primary mechanisms responsible for triggering growth anomalies in P. elliottii is the reduction of total photosynthetically active radiation due to a dust-derived increase in aerosol optical depth. As a rare long-lived conifer (300+years) in a subtropical location, P. elliottii could represent a novel proxy with which to reconstruct annual or seasonal mineral dust aerosol fluxes over the Caribbean region. Text Aerosol Robotic Network The University of Southern Mississippi: The Aquila Digital Community Earth Interactions 21 7 1 22 |
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The University of Southern Mississippi: The Aquila Digital Community |
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ftsouthmissispun |
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Atmosphere Tropics Dust or dust storms |
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Atmosphere Tropics Dust or dust storms Harley, Grant L. King, James Maxwell, Justin T. Trans-Atlantic Connections between North African Dust Flux and Tree Growth in the Florida Keys, United States |
topic_facet |
Atmosphere Tropics Dust or dust storms |
description |
Atmospheric mineral aerosols include multiple, interrelated processes and feedbacks within the context of land-atmosphere interactions and thus are poorly understood. As the largest dust source in the world, North Africa supplies mineral dust aerosols each year to the Caribbean region and southeastern United States that alter cloud processes, ocean productivity, soil development, and the radiation budget. This study uses a suite of Earth Observation and ground-based analyses to reveal a potential novel effect of atmospheric aerosols on Pinus elliottii var. densa cambial growth during the 2010 CE growing season from the Florida Keys. Over the Florida Keys region, the Earth Observation products captured increased aerosol optical thickness with a clear geographical connection to mineral dust aerosols transported from northern Africa. The MODIS Terra and Aqua products corroborated increased Ozone Monitoring Instrument (OMI) aerosol optical thickness values. Anomalously high Aerosol Robotic Network aerosol optical depth data corresponding with low angstrom ngstrom coefficients confirm the presence of transported mineral dust aerosols during the period circa 4-20 July 2010. The fraction of photosynthetically absorbed radiation over the region during July 2010 experienced an anomalous decrease, concurrent with reduced incoming total and direct solar radiation resulting in a reduced growth response in P. elliottii. The authors pose one of the primary mechanisms responsible for triggering growth anomalies in P. elliottii is the reduction of total photosynthetically active radiation due to a dust-derived increase in aerosol optical depth. As a rare long-lived conifer (300+years) in a subtropical location, P. elliottii could represent a novel proxy with which to reconstruct annual or seasonal mineral dust aerosol fluxes over the Caribbean region. |
format |
Text |
author |
Harley, Grant L. King, James Maxwell, Justin T. |
author_facet |
Harley, Grant L. King, James Maxwell, Justin T. |
author_sort |
Harley, Grant L. |
title |
Trans-Atlantic Connections between North African Dust Flux and Tree Growth in the Florida Keys, United States |
title_short |
Trans-Atlantic Connections between North African Dust Flux and Tree Growth in the Florida Keys, United States |
title_full |
Trans-Atlantic Connections between North African Dust Flux and Tree Growth in the Florida Keys, United States |
title_fullStr |
Trans-Atlantic Connections between North African Dust Flux and Tree Growth in the Florida Keys, United States |
title_full_unstemmed |
Trans-Atlantic Connections between North African Dust Flux and Tree Growth in the Florida Keys, United States |
title_sort |
trans-atlantic connections between north african dust flux and tree growth in the florida keys, united states |
publisher |
The Aquila Digital Community |
publishDate |
2017 |
url |
https://aquila.usm.edu/fac_pubs/17623 http://lynx.lib.usm.edu/login?URL=https://journals.ametsoc.org/downloadpdf/journals/eint/21/7/ei-d-16-0035.1.pdf |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_source |
Faculty Publications |
op_relation |
https://aquila.usm.edu/fac_pubs/17623 http://lynx.lib.usm.edu/login?URL=https://journals.ametsoc.org/downloadpdf/journals/eint/21/7/ei-d-16-0035.1.pdf |
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Earth Interactions |
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21 |
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7 |
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1 |
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22 |
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1772816345755287552 |