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231226s2022 xx |||||o 00| ||eng c |
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|a 10.1029/2022JD036733
|2 doi
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|a pubmed24n1524.xml
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|a eng
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|a Holopainen, E
|e verfasserin
|4 aut
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|a Insect Herbivory Caused Plant Stress Emissions Increases the Negative Radiative Forcing of Aerosols
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 05.09.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2022. The Authors.
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|a Plant stress in a changing climate is predicted to increase plant volatile organic compound (VOC) emissions and thus can affect the formed secondary organic aerosol (SOA) concentrations, which in turn affect the radiative properties of clouds and aerosol. However, global aerosol-climate models do not usually consider plant stress induced VOCs in their emission schemes. In this study, we modified the monoterpene emission factors in biogenic emission model to simulate biotic stress caused by insect herbivory on needleleaf evergreen boreal and broadleaf deciduous boreal trees and studied the consequent effects on SOA formation, aerosol-cloud interactions as well as direct radiative effects of formed SOA. Simulations were done altering the fraction of stressed and healthy trees in the latest version of ECHAM-HAMMOZ (ECHAM6.3-HAM2.3-MOZ1.0) global aerosol-climate model. Our simulations showed that increasing the extent of stress to the aforementioned tree types, substantially increased the SOA burden especially over the areas where these trees are located. This indicates that increased VOC emissions due to increasing stress enhance the SOA formation via oxidation of VOCs to low VOCs. In addition, cloud droplet number concentration at the cloud top increased with increasing extent of biotic stress. This indicates that as SOA formation increases, it further enhances the number of particles acting as cloud condensation nuclei. The increase in SOA formation also decreased both all-sky and clear-sky radiative forcing. This was due to a shift in particle size distributions that enhanced aerosol reflecting and scattering of incoming solar radiation
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|a Journal Article
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|a aerosol‐cloud interactions
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| 650 |
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|a global modeling
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| 650 |
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|a plant stress
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| 650 |
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4 |
|a radiative forcing
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| 650 |
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|a secondary organic aerosol
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| 650 |
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4 |
|a volatile organic compound
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| 700 |
1 |
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|a Kokkola, H
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Faiola, C
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Laakso, A
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kühn, T
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Journal of geophysical research. Atmospheres : JGR
|d 1998
|g 127(2022), 13 vom: 16. Juli, Seite e2022JD036733
|w (DE-627)NLM098183494
|x 2169-897X
|7 nnns
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| 773 |
1 |
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|g volume:127
|g year:2022
|g number:13
|g day:16
|g month:07
|g pages:e2022JD036733
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| 856 |
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|u http://dx.doi.org/10.1029/2022JD036733
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