DOI: 10.1016/j.atmosenv.2017.10.015
Scopus记录号: 2-s2.0-85032014195
论文题名: Simulations of the effect of intensive biomass burning in July 2015 on Arctic radiative budget
作者: Markowicz K ; M ; , Lisok J ; , Xian P
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 171 起始页码: 248
结束页码: 260
语种: 英语
英文关键词: Aerosol
; Biomass burning
; Radiative forcing
; Radiative forcing efficiency
; Single scattering albedo
; Smoke
Scopus关键词: Aerosols
; Atmospheric aerosols
; Atmospheric radiation
; Biomass
; Budget control
; Radiative transfer
; Satellite imagery
; Smoke
; Solar radiation
; Transport properties
; Aerosol optical property
; Biomass-burning
; Particle concentrations
; Radiative forcing efficiency
; Radiative forcings
; Radiative transfer model
; Single scattering albedo
; Top of the atmospheres
; Optical properties
; aerosol
; albedo
; biomass burning
; clear sky
; optical property
; polar region
; radiation budget
; radiative forcing
; radiative transfer
; scattering
; smoke
; top of atmosphere
; vertical profile
; albedo
; Arctic
; arctic climate
; Article
; atmospheric deposition
; biomass burning
; biotechnological procedures
; budget
; calculation
; cloud
; optical depth
; priority journal
; radiative forcing
; simulation
; Alaska
; Arctic
; Greenland
; North America
; Svalbard
; Svalbard and Jan Mayen
; United States
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: The impact of biomass burning (BB) on aerosol optical properties and radiative budget in the polar region following an intense boreal fire event in North America in July 2015 is explored in this paper. Presented data are obtained from the Navy Aerosol Analysis and Prediction System (NAAPS) reanalysis and the Fu-Liou radiative transfer model. NAAPS provides particle concentrations and aerosol optical depth (AOD) at 1° x 1° spatial and 6-hourly temporal resolution, its AOD and vertical profiles were validated with field measurements for this event. Direct aerosol radiative forcings (ARF) at the surface, the top of the atmosphere (TOA) and within the atmosphere are calculated for clear-sky and all-sky conditions, with the surface albedo and cloud properties constrained by satellite retrievals. The mean ARFs at the surface, the TOA, and within the atmosphere averaged for the north pole region (latitudes north of 75.5N) and the study period (July 5–15, 2015) are −13.1 ± 2.7, 0.3 ± 2.1, and 13.4 ± 2.7 W/m2 for clear-sky and −7.3 ± 1.8, 5.0 ± 2.6, and 12.3 ± 1.6 W/m2 for all-sky conditions respectively. Local ARFs can be a several times larger e.g. the clear-sky surface and TOA ARF reach over Alaska −85 and −30 W/m2 and over Svalbard −41 and −20 W/m2 respectively. The ARF is found negative at the surface (almost zero over high albedo region though) with the maximum forcing over the BB source region, and weaker forcing under all-sky conditions compared to the clear-sky conditions. Unlike the ARFs at the surface and within the atmosphere, which have consistent forcing signs all over the polar region, the ARF at the TOA changes signs from negative (cooling) over the source region (Alaska) to positive (heating) over bright surfaces (e.g., Greenland) because of strong surface albedo effect. NAAPS simulations also show that the transported BB particle over the Arctic are in the low-to-middle troposphere and above low-level clouds, resulting in little difference in ARFs at the TOA between clear- and all-sky conditions over the regions with high surface albedo. Over dark surfaces, the negative TOA forcing increases with AOD about 50% slower under all-sky conditions compared to clear-sky case. The boreal BB event resulted in large magnitude of ARFs and the high variabilities of the forcings over the polar region has a significant impact on the polar weather conditions and important implications for the polar climate. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82158
Appears in Collections: 气候变化事实与影响
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作者单位: Institute of Geophysics, Faculty of Physics, University of Warsaw, Warsaw, Poland; Naval Research Laboratory, Marine Meteorology Division, Monterey, United States
Recommended Citation:
Markowicz K,M,, Lisok J,et al. Simulations of the effect of intensive biomass burning in July 2015 on Arctic radiative budget[J]. Atmospheric Environment,2017-01-01,171