Isoprene hotspots at the Western Coast of Antarctic Peninsula during MASEC′16

Isoprene (C⁠5H⁠8) plays an important role in the formation of surface ozone (O3) and the secondary organic aerosol (SOA) which contributed to the climate change. This study aims to determine hourly distribution of tropospheric isoprene over the Western Coast of Antarctic Peninsula (WCAP) during the...

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Main Authors: Mohd Nadzir, Mohd Shahrul, Cain, Michelle, Robinson, Andrew D., Bolas, Conor Gordon, Harris, Neil R.P., Parnikoza, Ivan Yu, Salimun, Ester, Mustafa, Emienour Muzalina, Alhasa, Kemal Maulana, Sabuti, Asnor Azrin
Format: Article
Language:English
English
English
Published: Elsevier B.V. 2019
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Online Access:http://irep.iium.edu.my/70768/
http://irep.iium.edu.my/70768/
http://irep.iium.edu.my/70768/
http://irep.iium.edu.my/70768/1/70768_Isoprene%20hotspots%20at%20the%20Western_article.pdf
http://irep.iium.edu.my/70768/2/70768_Isoprene%20hotspots%20at%20the%20Western_scopus.pdf
http://irep.iium.edu.my/70768/3/70768_Isoprene%20hotspots%20at%20the%20Western_wos.pdf
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spelling iium-707682019-11-20T00:45:44Z http://irep.iium.edu.my/70768/ Isoprene hotspots at the Western Coast of Antarctic Peninsula during MASEC′16 Mohd Nadzir, Mohd Shahrul Cain, Michelle Robinson, Andrew D. Bolas, Conor Gordon Harris, Neil R.P. Parnikoza, Ivan Yu Salimun, Ester Mustafa, Emienour Muzalina Alhasa, Kemal Maulana Sabuti, Asnor Azrin Q Science (General) QD Chemistry Isoprene (C⁠5H⁠8) plays an important role in the formation of surface ozone (O3) and the secondary organic aerosol (SOA) which contributed to the climate change. This study aims to determine hourly distribution of tropospheric isoprene over the Western Coast of Antarctic Peninsula (WCAP) during the Malaysian Antarctic Scientific Expedition Cruise 2016 (MASEC′16). In-situ measurements of isoprene were taken using a custom-built gas chromatography with photoionization detector, known as iDirac. Biological parameters such as chlorophyll a (chl-a) and particulate organic carbon (POC) were compared to the in-situ isoprene measurements. Significant positive correlation was observed between isoprene and POC concentrations (r2=0.67, p<0.001), but not between isoprene and chl-a. The hotspots of isoprene over maritime Antarctic were then were investigated using NAME dispersion model reanalysis. Measurements showed that isoprene mixing ratio were the highest over region of King George Island, Deception Island and Booth Island with values of ∼5.0, ∼0.9 and ∼5.2ppb, respectively. Backward trajectory analysis showed that air masses may have lifted the isoprene emitted by marine algae. We believe our findings provide valuable data set of isoprene estimation over the under sampled WCAP. Elsevier B.V. 2019-06 Article PeerReviewed application/pdf en http://irep.iium.edu.my/70768/1/70768_Isoprene%20hotspots%20at%20the%20Western_article.pdf application/pdf en http://irep.iium.edu.my/70768/2/70768_Isoprene%20hotspots%20at%20the%20Western_scopus.pdf application/pdf en http://irep.iium.edu.my/70768/3/70768_Isoprene%20hotspots%20at%20the%20Western_wos.pdf Mohd Nadzir, Mohd Shahrul and Cain, Michelle and Robinson, Andrew D. and Bolas, Conor Gordon and Harris, Neil R.P. and Parnikoza, Ivan Yu and Salimun, Ester and Mustafa, Emienour Muzalina and Alhasa, Kemal Maulana and Sabuti, Asnor Azrin (2019) Isoprene hotspots at the Western Coast of Antarctic Peninsula during MASEC′16. Polar Science, 20. pp. 63-74. E-ISSN 1873-9652 https://www.sciencedirect.com/science/article/pii/S1873965218301014?via%3Dihub 10.1016/j.polar.2018.12.006
repository_type Digital Repository
institution_category Local University
institution International Islamic University Malaysia
building IIUM Repository
collection Online Access
language English
English
English
topic Q Science (General)
QD Chemistry
spellingShingle Q Science (General)
QD Chemistry
Mohd Nadzir, Mohd Shahrul
Cain, Michelle
Robinson, Andrew D.
Bolas, Conor Gordon
Harris, Neil R.P.
Parnikoza, Ivan Yu
Salimun, Ester
Mustafa, Emienour Muzalina
Alhasa, Kemal Maulana
Sabuti, Asnor Azrin
Isoprene hotspots at the Western Coast of Antarctic Peninsula during MASEC′16
description Isoprene (C⁠5H⁠8) plays an important role in the formation of surface ozone (O3) and the secondary organic aerosol (SOA) which contributed to the climate change. This study aims to determine hourly distribution of tropospheric isoprene over the Western Coast of Antarctic Peninsula (WCAP) during the Malaysian Antarctic Scientific Expedition Cruise 2016 (MASEC′16). In-situ measurements of isoprene were taken using a custom-built gas chromatography with photoionization detector, known as iDirac. Biological parameters such as chlorophyll a (chl-a) and particulate organic carbon (POC) were compared to the in-situ isoprene measurements. Significant positive correlation was observed between isoprene and POC concentrations (r2=0.67, p<0.001), but not between isoprene and chl-a. The hotspots of isoprene over maritime Antarctic were then were investigated using NAME dispersion model reanalysis. Measurements showed that isoprene mixing ratio were the highest over region of King George Island, Deception Island and Booth Island with values of ∼5.0, ∼0.9 and ∼5.2ppb, respectively. Backward trajectory analysis showed that air masses may have lifted the isoprene emitted by marine algae. We believe our findings provide valuable data set of isoprene estimation over the under sampled WCAP.
format Article
author Mohd Nadzir, Mohd Shahrul
Cain, Michelle
Robinson, Andrew D.
Bolas, Conor Gordon
Harris, Neil R.P.
Parnikoza, Ivan Yu
Salimun, Ester
Mustafa, Emienour Muzalina
Alhasa, Kemal Maulana
Sabuti, Asnor Azrin
author_facet Mohd Nadzir, Mohd Shahrul
Cain, Michelle
Robinson, Andrew D.
Bolas, Conor Gordon
Harris, Neil R.P.
Parnikoza, Ivan Yu
Salimun, Ester
Mustafa, Emienour Muzalina
Alhasa, Kemal Maulana
Sabuti, Asnor Azrin
author_sort Mohd Nadzir, Mohd Shahrul
title Isoprene hotspots at the Western Coast of Antarctic Peninsula during MASEC′16
title_short Isoprene hotspots at the Western Coast of Antarctic Peninsula during MASEC′16
title_full Isoprene hotspots at the Western Coast of Antarctic Peninsula during MASEC′16
title_fullStr Isoprene hotspots at the Western Coast of Antarctic Peninsula during MASEC′16
title_full_unstemmed Isoprene hotspots at the Western Coast of Antarctic Peninsula during MASEC′16
title_sort isoprene hotspots at the western coast of antarctic peninsula during masec′16
publisher Elsevier B.V.
publishDate 2019
url http://irep.iium.edu.my/70768/
http://irep.iium.edu.my/70768/
http://irep.iium.edu.my/70768/
http://irep.iium.edu.my/70768/1/70768_Isoprene%20hotspots%20at%20the%20Western_article.pdf
http://irep.iium.edu.my/70768/2/70768_Isoprene%20hotspots%20at%20the%20Western_scopus.pdf
http://irep.iium.edu.my/70768/3/70768_Isoprene%20hotspots%20at%20the%20Western_wos.pdf
first_indexed 2023-09-18T21:40:27Z
last_indexed 2023-09-18T21:40:27Z
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