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
Subjects:	Q Science (General) QD Chemistry
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
_version_	1777413104752132096

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

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