DOI: 10.1016/j.atmosenv.2016.11.061
Scopus记录号: 2-s2.0-85005943962
论文题名: Impact of anomalous forest fire on aerosol radiative forcing and snow cover over Himalayan region
作者: Bali K ; , Mishra A ; K ; , Singh S
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 150 起始页码: 264
结束页码: 275
语种: 英语
英文关键词: Biomass-burning
; Black carbon
; Forest fire
; Himalayas
; Organic carbon
; Surface darkening
Scopus关键词: Aerosols
; Atmospheric radiation
; Biomass
; Budget control
; Climate change
; Deforestation
; Ecology
; Ecosystems
; Fire hazards
; Forestry
; Meteorology
; Organic carbon
; Radiometers
; Satellite imagery
; Snow
; Aerosol radiative forcing
; Aerosol vertical profiles
; Atmospheric radiation budgets
; Biomass-burning
; Black carbon
; Cloud-aerosol lidar and infrared pathfinder satellite observations
; Forest fires
; Himalayas
; Fires
; black carbon
; organic carbon
; aerosol
; biomass burning
; black carbon
; CALIPSO
; climate change
; ecosystem dynamics
; forest fire
; hydrological cycle
; MODIS
; organic carbon
; radiation budget
; radiative forcing
; snow cover
; aerosol
; altitude
; Article
; atmospheric radioactivity
; climate change
; data analysis
; forest dynamics
; priority journal
; radiative forcing
; snow cover
; Himalayas
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: Forest fires are very common in tropical region during February–May months and are known to have significant impact on ecosystem dynamics. Moreover, aerosols emitted from these burning activities significantly modulate the Earth's radiation budget. In present study, we investigated the anomalous forest fire events and their impact on atmospheric radiation budget and glaciated snow cover over the Himalayan region. We used multiple dataset derived from satellites [Moderate Resolution Spectroradiometer (MODIS) and Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO)] and reanalysis models [Global Fire Assimilation System (GFAS), Second Modern-Era Retrospective analysis for Research and Application (MERRA-2) and ERA-interim] to evaluate the effect of biomass burning aerosols on radiation budget. April 2016 is associated with anomalous fire activities over lower Himalayan region in the last fourteen years (2003–2016). The model estimated organic carbon (OC) and black carbon (BC) emission reaches up to ∼3 × 104 and ∼2 × 103 μg/m2/day, respectively during the biomass burning period of April 2016. The meteorological data analysis accompanied with CALIOP aerosol vertical profile shows that these carbonaceous aerosols could reach up to ∼5–7 km altitude and could be transported towards glaciated region of upper Himalayas. The large amount of BC/OC from biomass burning significantly modulates the atmospheric radiation budget. The estimated columnar heating rate shows that these carbonaceous aerosols could heat up the atmosphere by ∼0.04–0.06 K/day in April-2016 with respect to non-burning period (2015). The glaciated snow cover fractions are found to be decreasing by ∼5–20% in 2016 as compared to long term mean (2003–2016). The combined analyses of various climatic factors, fires and associated BC emissions show that the observed snow cover decrease could be results of increased surface/atmospheric temperature due to combined effect of large scale climatic changes and BC absorption. Our results suggest that biomass burning can have significant effects on the Himalayan region, particularly in view of its importance in hydrological cycle and ecosystem. © 2016 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82271
Appears in Collections: 气候变化事实与影响
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作者单位: Environmental and Biomedical Metrology Division, CSIR-National Physical Laboratory, Dr KS Krishnan Road, New Delhi, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-National Physical Laboratory Campus, New Delhi, India
Recommended Citation:
Bali K,, Mishra A,K,et al. Impact of anomalous forest fire on aerosol radiative forcing and snow cover over Himalayan region[J]. Atmospheric Environment,2017-01-01,150