Mineral dust transport to the Sierra Nevada, California: Loading rates and potential source areas
International audience The transport and deposition of aeolian dust represents an important material input pathway for many marine and terrestrial ecosystems and may be an ecologically significant source of exogenous phosphorus (P) to alpine lakes. In order to assess the abundance and elemental comp...
Published in: | Journal of Geophysical Research |
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Main Authors: | , |
Other Authors: | , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2011
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Online Access: | https://insu.hal.science/insu-00605102 https://insu.hal.science/insu-00605102/document https://insu.hal.science/insu-00605102/file/2010JG001394.pdf https://doi.org/10.1029/2010JG001394 |
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ftunigrenoble:oai:HAL:insu-00605102v1 |
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openpolar |
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Open Polar |
collection |
Université Grenoble Alpes: HAL |
op_collection_id |
ftunigrenoble |
language |
English |
topic |
Size Distribution Aerosol Samples Boundary-Layer Trace-Elements North-Atlantic Particulate Matter African Dust Long-Range Transport Western United-States Asian Dust [SDU]Sciences of the Universe [physics] |
spellingShingle |
Size Distribution Aerosol Samples Boundary-Layer Trace-Elements North-Atlantic Particulate Matter African Dust Long-Range Transport Western United-States Asian Dust [SDU]Sciences of the Universe [physics] Vicars, W.C Sickman, J. O. Mineral dust transport to the Sierra Nevada, California: Loading rates and potential source areas |
topic_facet |
Size Distribution Aerosol Samples Boundary-Layer Trace-Elements North-Atlantic Particulate Matter African Dust Long-Range Transport Western United-States Asian Dust [SDU]Sciences of the Universe [physics] |
description |
International audience The transport and deposition of aeolian dust represents an important material input pathway for many marine and terrestrial ecosystems and may be an ecologically significant source of exogenous phosphorus (P) to alpine lakes. In order to assess the abundance and elemental composition of atmospheric mineral dust over the Sierra Nevada of California, we collected size-fractionated atmospheric particulate matter (PM) samples during July 2008 to March 2009 at a mixed conifer site located in Sequoia National Park. PM concentrations were at their highest levels during the dry season, averaging 8.8 +/- 3.7 and 11.1 +/- 7.5 mu g m(-3) for the coarse (1 mu m < D-a < 15 mm) and fine (D-a < 1 mu m) fractions, respectively, while winter months were characterized by low (< 1 mu g m(-3)) PM concentrations in both size fractions. Using Al as a diagnostic tracer for mineral aerosol, we observed a significant and uniform contribution (50-80%) from aeolian dust to the total coarse PM load, whereas submicron particles contained comparatively little crustal material (7-33%). The mass concentrations of elements (Fe, Ca, Mg, P, and V) in the coarse PM fraction were significantly correlated with Al throughout the study, and coarse PM exhibited elemental signatures that were temporally consistent and distinguishable from those of other sites. Conversely, higher elemental enrichments were observed in the fine PM fraction for Fe, V, and P, indicating a greater contribution from anthropogenic emissions to the fine particle load. Fe/Al and Fe/Ca ratios suggest a mixture of mineral dust from regional agricultural activities and long-range transport of mineral dust from Asia. Asian sources comprised 40-90% of mineral dust in July 2008 and then declined to between 10 and 30% in August and early September. |
author2 |
CLIPS, CHANG Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Department of Environmental Sciences Riverside University of California Riverside (UC Riverside) University of California (UC)-University of California (UC)-University of California Riverside (UC Riverside) University of California (UC)-University of California (UC) Department of Environmental Sciences Riverside National Science Foundation 0614207 |
format |
Article in Journal/Newspaper |
author |
Vicars, W.C Sickman, J. O. |
author_facet |
Vicars, W.C Sickman, J. O. |
author_sort |
Vicars, W.C |
title |
Mineral dust transport to the Sierra Nevada, California: Loading rates and potential source areas |
title_short |
Mineral dust transport to the Sierra Nevada, California: Loading rates and potential source areas |
title_full |
Mineral dust transport to the Sierra Nevada, California: Loading rates and potential source areas |
title_fullStr |
Mineral dust transport to the Sierra Nevada, California: Loading rates and potential source areas |
title_full_unstemmed |
Mineral dust transport to the Sierra Nevada, California: Loading rates and potential source areas |
title_sort |
mineral dust transport to the sierra nevada, california: loading rates and potential source areas |
publisher |
HAL CCSD |
publishDate |
2011 |
url |
https://insu.hal.science/insu-00605102 https://insu.hal.science/insu-00605102/document https://insu.hal.science/insu-00605102/file/2010JG001394.pdf https://doi.org/10.1029/2010JG001394 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
ISSN: 0148-0227 EISSN: 2156-2202 Journal of Geophysical Research https://insu.hal.science/insu-00605102 Journal of Geophysical Research, 2011, 116, pp.G01018. ⟨10.1029/2010JG001394⟩ |
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info:eu-repo/semantics/altIdentifier/doi/10.1029/2010JG001394 insu-00605102 https://insu.hal.science/insu-00605102 https://insu.hal.science/insu-00605102/document https://insu.hal.science/insu-00605102/file/2010JG001394.pdf doi:10.1029/2010JG001394 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2010JG001394 |
container_title |
Journal of Geophysical Research |
container_volume |
116 |
container_issue |
G1 |
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1798851307565481984 |
spelling |
ftunigrenoble:oai:HAL:insu-00605102v1 2024-05-12T08:08:20+00:00 Mineral dust transport to the Sierra Nevada, California: Loading rates and potential source areas Vicars, W.C Sickman, J. O. CLIPS, CHANG Laboratoire de glaciologie et géophysique de l'environnement (LGGE) Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG) Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Department of Environmental Sciences Riverside University of California Riverside (UC Riverside) University of California (UC)-University of California (UC)-University of California Riverside (UC Riverside) University of California (UC)-University of California (UC) Department of Environmental Sciences Riverside National Science Foundation 0614207 2011-02-17 https://insu.hal.science/insu-00605102 https://insu.hal.science/insu-00605102/document https://insu.hal.science/insu-00605102/file/2010JG001394.pdf https://doi.org/10.1029/2010JG001394 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2010JG001394 insu-00605102 https://insu.hal.science/insu-00605102 https://insu.hal.science/insu-00605102/document https://insu.hal.science/insu-00605102/file/2010JG001394.pdf doi:10.1029/2010JG001394 info:eu-repo/semantics/OpenAccess ISSN: 0148-0227 EISSN: 2156-2202 Journal of Geophysical Research https://insu.hal.science/insu-00605102 Journal of Geophysical Research, 2011, 116, pp.G01018. ⟨10.1029/2010JG001394⟩ Size Distribution Aerosol Samples Boundary-Layer Trace-Elements North-Atlantic Particulate Matter African Dust Long-Range Transport Western United-States Asian Dust [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2011 ftunigrenoble https://doi.org/10.1029/2010JG001394 2024-04-18T03:21:07Z International audience The transport and deposition of aeolian dust represents an important material input pathway for many marine and terrestrial ecosystems and may be an ecologically significant source of exogenous phosphorus (P) to alpine lakes. In order to assess the abundance and elemental composition of atmospheric mineral dust over the Sierra Nevada of California, we collected size-fractionated atmospheric particulate matter (PM) samples during July 2008 to March 2009 at a mixed conifer site located in Sequoia National Park. PM concentrations were at their highest levels during the dry season, averaging 8.8 +/- 3.7 and 11.1 +/- 7.5 mu g m(-3) for the coarse (1 mu m < D-a < 15 mm) and fine (D-a < 1 mu m) fractions, respectively, while winter months were characterized by low (< 1 mu g m(-3)) PM concentrations in both size fractions. Using Al as a diagnostic tracer for mineral aerosol, we observed a significant and uniform contribution (50-80%) from aeolian dust to the total coarse PM load, whereas submicron particles contained comparatively little crustal material (7-33%). The mass concentrations of elements (Fe, Ca, Mg, P, and V) in the coarse PM fraction were significantly correlated with Al throughout the study, and coarse PM exhibited elemental signatures that were temporally consistent and distinguishable from those of other sites. Conversely, higher elemental enrichments were observed in the fine PM fraction for Fe, V, and P, indicating a greater contribution from anthropogenic emissions to the fine particle load. Fe/Al and Fe/Ca ratios suggest a mixture of mineral dust from regional agricultural activities and long-range transport of mineral dust from Asia. Asian sources comprised 40-90% of mineral dust in July 2008 and then declined to between 10 and 30% in August and early September. Article in Journal/Newspaper North Atlantic Université Grenoble Alpes: HAL Journal of Geophysical Research 116 G1 |