Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.1016/j.atmosenv.2020.117533 |
| Aerosol absorption over the Aegean Sea under northern summer winds | |
| Methymaki, Georgia1; Bossioli, Elissavet1; Kalogiros, John2; Kouvarakis, Giorgos3; Mihalopoulos, Nikolaos2,3; Nenes, Athanasios4,5; Tombrou, Maria1 | |
| 通讯作者 | Methymaki, Georgia |
| 来源期刊 | ATMOSPHERIC ENVIRONMENT
 |
| ISSN | 1352-2310 |
| EISSN | 1873-2844 |
| 出版年 | 2020 |
| 卷号 | 231 |
| 英文摘要 | In this modelling study, the absorption influence on radiation, apart from scattering, is studied above the Aegean Sea (Eastern Mediterranean) under a typical warm 13-day period with northern winds, transporting polluted air masses. The simulated (WRF-Chem) forcing caused by the total absorption is estimated along with black carbon (BC), dust, and sea salt contributions, 1.3, 1.2, 0.1 and nearly zero W m(-2), accordingly. As dust and sea salt influence is negligible, the main focus is on BC. BC absorption reduces downward shortwave irradiance reaching the ground by up to 5.2 W m(-2) and the upward part by up to 1.7 W m(-2). The downward and the upward longwave irradiances are augmented by up to 2.3 and 1.2 W m(-2), accordingly. Even though the cloud formation is not favoured during the study period, BC absorption reduces overall the cloud water mixing ratio by 10% (semi-direct effect). However, during specific days and over limited cloudy areas, the semi-direct effect reduces low level clouds up to 20% while in case of higher clouds the reduction reaches up to similar to 29%. In order to examine the physical mechanisms below semi-direct effect, all modelled heating rates are analysed. Radiation direct absorption increases the air temperature with a rate up to 0.2 K day(-1), with an exception inside the surface layer, where unexpectedly longwave cooling prevails. The heating of the surface layer is mainly attributed to the advection process, as more heated air masses are transported over the Aegean Sea. |
| 英文关键词 | Aerosol absorption Black carbon absorption WRF-Chem Direct effect Semi-direct effect heating rate Mediterranean Aerosol-radiation interaction |
| 类型 | Article |
| 语种 | 英语 |
| 国家 | Greece ; Switzerland |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000541247800014 |
| WOS关键词 | OPTICAL-PROPERTIES ; AIR-POLLUTION ; HYGROSCOPIC PROPERTIES ; MEDITERRANEAN CLIMATE ; RADIATIVE-TRANSFER ; ABSORBING AEROSOL ; BOUNDARY-LAYER ; DESERT DUST ; MODEL ; SHORTWAVE |
| WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
| WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/319432 |
| 作者单位 | 1.Natl & Kapodistrian Univ Athens, Dept Phys, Athens 15772, Greece; 2.Natl Observ Athens, Inst Environm Res & Sustainable Dev, Athens 15236, Greece; 3.Univ Crete, Dept Chem, Iraklion 70013, Greece; 4.Ecole Polytech Fed Lausanne, Lab Atmospher Proc & Their Impacts, Sch Architecture Civil & Environm Engn, CH-1015 Lausanne, Switzerland; 5.Fdn Res & Technol Hellas, Inst Chem Engn Sci, Patras 26504, Greece |
| 推荐引用方式 GB/T 7714 | Methymaki, Georgia,Bossioli, Elissavet,Kalogiros, John,et al. Aerosol absorption over the Aegean Sea under northern summer winds[J],2020,231. |
| APA | Methymaki, Georgia.,Bossioli, Elissavet.,Kalogiros, John.,Kouvarakis, Giorgos.,Mihalopoulos, Nikolaos.,...&Tombrou, Maria.(2020).Aerosol absorption over the Aegean Sea under northern summer winds.ATMOSPHERIC ENVIRONMENT,231. |
| MLA | Methymaki, Georgia,et al."Aerosol absorption over the Aegean Sea under northern summer winds".ATMOSPHERIC ENVIRONMENT 231(2020). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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