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Comparing the Importance of Iodine and Isoprene on Tropospheric Photochemistry

التفاصيل البيبلوغرافية
العنوان: Comparing the Importance of Iodine and Isoprene on Tropospheric Photochemistry
المؤلفون: R. J. Pound, D. P. Durcan, M. J. Evans, L. J. Carpenter
المصدر: Geophysical Research Letters, Vol 50, Iss 8, Pp n/a-n/a (2023)
بيانات النشر: Wiley, 2023.
سنة النشر: 2023
المجموعة: LCC:Geophysics. Cosmic physics
مصطلحات موضوعية: iodine, isoprene, ozone, natural emissions, Geophysics. Cosmic physics, QC801-809
الوصف: Abstract Isoprene, arguably the most studied biogenically emitted gas, is thought to have a large impact on tropospheric composition. Other naturally emitted species have been considered to play a less important role. Here the GEOS‐Chem model is used to compare the impacts of isoprene and iodine emissions on present‐day tropospheric composition. Removing isoprene emissions leads to a 3.4% decrease in tropospheric O3 burden, a smaller absolute change than the 5.9% increase from removing iodine emissions. Iodine has a negligible impact on global mean OH concentrations and methane lifetime (+0.6% and +0.05%) whereas isoprene has a substantial impact on both (−4.3% and −4.2%). Isoprene emissions and chemistry are seen as essential for tropospheric chemistry models, but iodine is often not. We suggest that iodine should receive greater attention in model development and experimental research to allow improved predictions of past, present, and future tropospheric O3.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1944-8007
0094-8276
73398446
العلاقة: https://doaj.org/toc/0094-8276Test; https://doaj.org/toc/1944-8007Test
DOI: 10.1029/2022GL100997
الوصول الحر: https://doaj.org/article/d67ffde733984469835f3af6f1438ff6Test
رقم الانضمام: edsdoj.67ffde733984469835f3af6f1438ff6
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:19448007
00948276
73398446
DOI:10.1029/2022GL100997