VOLATILE ORGANIC-COMPOUNDS
; PHYTOPLANKTON
; EMISSIONS
; AEROSOLS
; PHOTOOXIDATION
; BROMOFORM
; MODEL
; OCEAN
; EAST
WOS学科分类:
Ecology
; Geosciences, Multidisciplinary
WOS研究方向:
Environmental Sciences & Ecology
; Geology
英文摘要:
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 similar to 5.0, similar to 0.9 and similar to 5.2 ppb, 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.
1.Univ Kebangsaan Malaysia, Fac Sci & Technol, Sch Environm & Nat Resource Sci, Bangi 43600, Selangor, Malaysia 2.Univ Kebangsaan Malaysia, Inst Climate Change, Ctr Trop Climate Change Syst, Bangi 43600, Selangor, Malaysia 3.Univ Kebangsaan Malaysia, Fac Hlth Sci, Sch Diagnost Sci & Appl Hlth, Environm Hlth & Ind Safety Program, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia 4.Univ Cambridge, Dept Chem, Ctr Atmospher Sci, Cambridge CB2 1EW, England 5.Univ Nottingham Malaysia Campus, Sch Biosci, Jalan Broga, Semenyih 43500, Selangor, Malaysia 6.RV Australis, 6-6 Ormond St, Bondi Beach, NSW 2026, Australia 7.Univ Kebangsaan Malaysia, Inst Environm & Dev LESTARI, Bangi 43600, Selangor, Malaysia 8.Univ Malaya, Natl Antarctic Res Ctr, IPS Bldg, Kuala Lumpur 50603, Malaysia 9.Cranfield Univ, Ctr Environm & Agr Informat, Cranfield MK43 0AL, Beds, England 10.Sultan Mizan Antarctic Res Fdn, 902-4 Jalan Tun Ismail, Kuala Lumpur 50480, Malaysia 11.Enviro Exceltech Sdn Bhd, Lot 3271,Tingkat 1&2, Seri Kembangan 43300, Selangor, Malaysia 12.Univ Sains Malaysia, Ctr Marine & Coastal Studies, Minden 11800, Penang, Malaysia 13.CESIRI, Port Harcourt, Rivers State, Nigeria 14.Univ Malaya, Inst Ocean & Earth Sci, Kuala Lumpur 50603, Malaysia 15.Univ Malaysia Terengganu, Sch Fisheries & Aquaculture Sci, Kuala Terengganu 21030, Terengganu, Malaysia 16.Univ Putra Malaysia, Fac Environm Studies, Serdang 43400, Malaysia 17.Minist Educ & Sci Ukraine, Natl Antarctic Sci Ctr, Taras Shevchenko Blvd 16, UA-01601 Kiev, Ukraine 18.NAS Ukraine, Inst Mol Biol & Genet, Zabolotnogo Str 150, UA-03680 Kiev, Ukraine 19.Univ Kebangsaan Malaysia, Fac Islamic Studies, Dept Theol & Philosophy, Bangi 43600, Selangor, Malaysia 20.Univ Kebangsaan Malaysia, Fac Sci & Technol, Sch Biosci & Biotechnol, Bangi 43600, Selangor, Malaysia 21.Univ Kebangsaan Malaysia, Inst Climate Change, Space Sci Ctr ANGKASA, Level 5,Res Complex Bldg, Bangi 43600, Selangor, Malaysia 22.Int Islamic Univ Malaysia, Kulliyyah Sci, Dept Marine Sci, Jalan Sultan Ahmad Shah, Kuantan 25200, Pahang, Malaysia 23.Univ Malaya, Fac Arts & Social Sci, Dept Geog, Kuala Lumpur 50603, Malaysia 24.Univ Tekn Malaysia Melaka UTeM, Fac Elect & Comp Engn, Durian Tunggal 76100, Melaka, Malaysia 25.Univ Kebangsaan Malaysia, Fac Sci & Technol, Sch Math Sci, Bangi 43600, Selangor, Malaysia 26.Univ Oxford, Oxford Martin Sch, 34 Broad St, Oxford OX1 3BD, England 27.Univ Kebangsaan Malaysia, Fac Sci & Technol, Marine Ecosyst Res Ctr, Bangi 43600, Selangor, Malaysia 28.Univ Sains Malaysia, Ctr Policy Res & Int Studies, Minden 11800, Penang, Malaysia 29.Natl Cent Univ, Dept Atmospher Sci, Cloud & Aerosol Lab, Zhongli 32001, Taiwan 30.Univ Malaysia Kelantan, Fac Bioengn & Technol, Jeli Campus,Locked Bag 100, Jeli 17600, Kelantan, Malaysia 31.Portland State Univ, Dept Biol, Ctr Life Extreme Environm, POB 751, Portland, OR 97207 USA 32.Univ Malaya, Dept Chem, Fac Sci, Kuala Lumpur 50603, Malaysia
Recommended Citation:
Nadzir, M. S. M.,Cain, M.,Robinson, A. D.,et al. Isoprene hotspots at the Western Coast of Antarctic Peninsula during MASEC ' 16[J]. POLAR SCIENCE,2019-01-01,20:63-74