Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-19-3341-2019 |
Lidar observations of pyrocumulonimbus smoke plumes in the UTLS over Tomsk (Western Siberia, Russia) from 2000 to 2017 | |
Zuev, Vladimir V.1; Gerasimov, Vladislav V.1,2; Nevzorov, Aleksei V.3; Savelieva, Ekaterina S.1 | |
2019-03-14 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2019 |
卷号 | 19期号:5页码:3341-3356 |
文章类型 | Article |
语种 | 英语 |
国家 | Russia |
英文摘要 | Large volcanic eruptions with the volcanic explosivity index (VEI) >= 3 are widely known to be the strongest source of long-lived aerosol in the upper troposphere and lower stratosphere (UTLS). However, the latest studies have revealed that massive forest (bush) fires represent another strong source of short-term (but intense) aerosol perturbations in the UTLS if combustion products from the fires reach these altitudes via convective ascent within pyrocumulonimbus clouds (pyroCbs). PyroCbs, generated by boreal wildfires in North America and northeastern Asia and injecting smoke plumes into the UTLS, have been intensively studied using both ground-and space-based instruments since the beginning of the 21st century. In this paper, we focus on aerosol layers observed in the UTLS over Tomsk (56.48 degrees N, 85.05 degrees E, Western Siberia, Russia) that could be smoke plumes from such pyroCb events occurring in the 2000-2017 period. Using the HYSPLIT trajectory analysis, we have reliably assigned nine aerosol layers to 8 out of more than 100 documented pyroCb events, the aftereffects of which could potentially be detected in the UTLS over Tomsk. All the eight pyroCb events occurred in the USA and Canada: one event per year occurred in 2000, 2002, 2003, 2013, 2015, and 2016, whereas two events occurred in 2017. No plumes from pyroCbs originating in the boreal zone of Siberia and the Far East (to the east of Tomsk) were observed in the UTLS over Tomsk between 2000 and 2017. We conclude that the time durations for pyroCb plumes to be detected in the UTLS using ground-based lidars are less than about a month, i.e., plumes from pyroCbs generated by wildfires to the east of Tomsk can significantly diffuse before reaching the Tomsk lidar station by the westerly zonal transport of air masses. A comparative analysis of the contributions from pyroCb events and volcanic eruptions with VEI >= 3 to aerosol loading of the UTLS over Tomsk showed the following. Plumes from two or more pyroCbs that have occurred in North America in a single year are able to markedly increase the aerosol loading compared to the previous year. The annual average value of the integrated aerosol backscatter coefficient B-pi,532(a) increased by 14.8% in 2017 compared to that in 2016 due to multiple pyroCbs occurring in British Columbia (Canada) in August 2017. The aftereffects of pyroCb events are comparable to those of volcanic eruptions with VEI <= 3, but even multiple pyroCbs can hardly compete with volcanic eruptions with VEI = 4. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000461195400003 |
WOS关键词 | LONG-RANGE TRANSPORT ; FOREST-FIRE SMOKE ; STRATOSPHERIC AEROSOL LAYER ; MICROPHYSICAL PROPERTIES ; INJECTION HEIGHTS ; UPPER TROPOSPHERE ; CENTRAL-EUROPE ; CIRRUS CLOUDS ; EMISSIONS ; CONVECTION |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/30877 |
专题 | 地球科学 |
作者单位 | 1.RAS, Inst Monitoring Climat & Ecol Syst, SB, Tomsk 634055, Russia; 2.Tomsk State Univ, Fac Phys, Tomsk 634050, Russia; 3.RAS, SB, VE Zuev Inst Atmospher Opt, Tomsk 634055, Russia |
推荐引用方式 GB/T 7714 | Zuev, Vladimir V.,Gerasimov, Vladislav V.,Nevzorov, Aleksei V.,et al. Lidar observations of pyrocumulonimbus smoke plumes in the UTLS over Tomsk (Western Siberia, Russia) from 2000 to 2017[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(5):3341-3356. |
APA | Zuev, Vladimir V.,Gerasimov, Vladislav V.,Nevzorov, Aleksei V.,&Savelieva, Ekaterina S..(2019).Lidar observations of pyrocumulonimbus smoke plumes in the UTLS over Tomsk (Western Siberia, Russia) from 2000 to 2017.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(5),3341-3356. |
MLA | Zuev, Vladimir V.,et al."Lidar observations of pyrocumulonimbus smoke plumes in the UTLS over Tomsk (Western Siberia, Russia) from 2000 to 2017".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.5(2019):3341-3356. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论