Academic Journal
Decomposing the effective radiative forcing of anthropogenic aerosols based on CMIP6 Earth system models
| العنوان: | Decomposing the effective radiative forcing of anthropogenic aerosols based on CMIP6 Earth system models |
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| المؤلفون: | A. Kalisoras, A. K. Georgoulias, D. Akritidis, R. J. Allen, V. Naik, C. Kuo, S. Szopa, P. Nabat, D. Olivié, T. van Noije, P. Le Sager, D. Neubauer, N. Oshima, J. Mulcahy, L. W. Horowitz, P. Zanis |
| المصدر: | Atmospheric Chemistry and Physics, Vol 24, Pp 7837-7872 (2024) |
| بيانات النشر: | Copernicus Publications |
| سنة النشر: | 2024 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | Physics, QC1-999, Chemistry, QD1-999 |
| الوصف: | Anthropogenic aerosols play a major role in the Earth–atmosphere system by influencing the Earth's radiative budget and precipitation and consequently the climate. The perturbation induced by changes in anthropogenic aerosols on the Earth's energy balance is quantified in terms of the effective radiative forcing (ERF). In this work, the present-day shortwave (SW), longwave (LW), and total (i.e., SW plus LW) ERF of anthropogenic aerosols is quantified using two different sets of experiments with prescribed sea surface temperatures (SSTs) from Earth system models (ESMs) participating in the Coupled Model Intercomparison Project Phase 6 (CMIP6): (a) time-slice pre-industrial perturbation simulations with fixed SSTs (piClim) and (b) transient historical simulations with time-evolving SSTs (histSST) over the historical period (1850–2014). ERF is decomposed into three components for both piClim and histSST experiments: (a) ERF ARI , representing aerosol–radiation interactions; (b) ERF ACI , accounting for aerosol–cloud interactions (including the semi-direct effect); and (c) ERF ALB , which is due to temperature, humidity, and surface albedo changes caused by anthropogenic aerosols. We present spatial patterns at the top-of-atmosphere (TOA) and global weighted field means along with inter-model variability (1 standard deviation) for all SW, LW, and total ERF components ( ERF ARI , ERF ACI , and ERF ALB ) and for every experiment used in this study. Moreover, the inter-model agreement and the robustness of our results are assessed using a comprehensive method as utilized in the IPCC Sixth Assessment Report. Based on piClim experiments, the total present-day (2014) ERF from anthropogenic aerosol and precursor emissions is estimated to be − 1.11 ± 0.26 W m −2 , mostly due to the large contribution of ERF ACI to the global mean and to the inter-model variability. Based on the histSST experiments for the present-day period (1995–2014), similar results are derived, with a global mean total aerosol ERF of − 1.28 ± 0.37 W m ... |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 1680-7316 1680-7324 |
| Relation: | https://acp.copernicus.org/articles/24/7837/2024/acp-24-7837-2024.pdf; https://doaj.org/toc/1680-7316; https://doaj.org/toc/1680-7324; https://doaj.org/article/59c85e3680af4c63af1bcbc074ccb781 |
| DOI: | 10.5194/acp-24-7837-2024 |
| الاتاحة: | https://doi.org/10.5194/acp-24-7837-2024 https://doaj.org/article/59c85e3680af4c63af1bcbc074ccb781 |
| رقم الانضمام: | edsbas.E687B584 |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 16807316 16807324 |
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| DOI: | 10.5194/acp-24-7837-2024 |