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Current estimates of biogenic emissions from eucalypts uncertain for southeast Australia

التفاصيل البيبلوغرافية
العنوان: Current estimates of biogenic emissions from eucalypts uncertain for southeast Australia
المؤلفون: K. M. Emmerson, I. E. Galbally, A. B. Guenther, C. Paton-Walsh, E.-A. Guerette, M. E. Cope, M. D. Keywood, S. J. Lawson, S. B. Molloy, E. Dunne, M. Thatcher, T. Karl, S. D. Maleknia
المصدر: Atmospheric Chemistry and Physics, Vol 16, Pp 6997-7011 (2016)
بيانات النشر: Copernicus Publications, 2016.
سنة النشر: 2016
المجموعة: LCC:Physics
LCC:Chemistry
مصطلحات موضوعية: Physics, QC1-999, Chemistry, QD1-999
الوصف: The biogenic emissions of isoprene and monoterpenes are one of the main drivers of atmospheric photochemistry, including oxidant and secondary organic aerosol production. In this paper, the emission rates of isoprene and monoterpenes from Australian vegetation are investigated for the first time using the Model of Emissions of Gases and Aerosols from Nature version 2.1 (MEGANv2.1); the CSIRO chemical transport model; and atmospheric observations of isoprene, monoterpenes and isoprene oxidation products (methacrolein and methyl vinyl ketone). Observations from four field campaigns during three different seasons are used, covering urban, coastal suburban and inland forest areas. The observed concentrations of isoprene and monoterpenes were of a broadly similar magnitude, which may indicate that southeast Australia holds an unusual position where neither chemical species dominates. The model results overestimate the observed atmospheric concentrations of isoprene (up to a factor of 6) and underestimate the monoterpene concentrations (up to a factor of 4). This may occur because the emission rates currently used in MEGANv2.1 for Australia are drawn mainly from young eucalypt trees (
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1680-7316
1680-7324
Relation: https://www.atmos-chem-phys.net/16/6997/2016/acp-16-6997-2016.pdf; https://doaj.org/toc/1680-7316; https://doaj.org/toc/1680-7324
DOI: 10.5194/acp-16-6997-2016
URL الوصول: https://doaj.org/article/83dea01708824f859a374365cd217978
رقم الانضمام: edsdoj.83dea01708824f859a374365cd217978
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:16807316
16807324
DOI:10.5194/acp-16-6997-2016