Aerosols
; Atmospheric aerosols
; Gas emissions
; Gas industry
; Meteorology
; Natural gas fields
; Offshore gas fields
; Oil field development
; Oil fields
; Sea ice
; Size distribution
; Air mass trajectories
; Anthropogenic activity
; Arctic aerosols
; Cloud condensation nuclei
; Particle growth
; Particle number concentration
; Particle number size distribution
; Prudhoe Bay
; Climate change
; ozone
; aerosol
; climate change
; concentration (composition)
; condensation
; emission
; gas field
; human activity
; oil field
; particle size
; sea ice
; size distribution
; trajectory
; aerosol
; air
; Alaska
; Arctic
; Article
; bay
; boundary layer
; growth rate
; particle size
; priority journal
; seasonal variation
; solar radiation
; Alaska
; Arctic Ocean
; Barrow
; Prudhoe Bay
; 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 Arctic is a rapidly changing ecosystem, with complex aerosol-cloud-climate feedbacks contributing to more rapid warming of the region as compared to the mid-latitudes. Understanding changes to particle number concentration and size distributions is important to constraining estimates of the effect of anthropogenic activity on the region. During six years of semi-continuous measurements of particle number size distributions conducted near Utqiaġvik (Barrow), Alaska, 37 particle-growth events were observed. The majority of events occurred during spring and summer with a monthly maximum in June, similar to other Arctic sites. Based on backward air mass trajectory analysis, similar numbers of particle-growth events were influenced by marine (46%) and Prudhoe Bay air masses (33%), despite air primarily coming from the Arctic Ocean (75���2% of days) compared to Prudhoe Bay (8���2% of days). The corresponding normalized particle-growth event frequency suggests that emissions from Prudhoe Bay could induce an average of 92 particle-growth events, more than all other air mass sources combined, at Barrow annually. Prudhoe Bay is currently the third largest oil and gas field in the United States, and development in the Arctic region is expected to expand throughout the 21st century as the extent of summertime sea ice decreases. Elevated particle number concentrations due to human activity are likely to have profound impacts on climate change in the Arctic through direct, indirect, and surface albedo feedbacks, particularly through the addition of cloud condensation nuclei. � 2016 Elsevier Ltd
Department of Chemistry, University of Michigan, Ann Arbor, MI, United States; National Atmospheric and Oceanic Administration & Cooperative Institute for Research in Environmental Sciences, Boulder, CO, United States; Leibniz Institute for Tropospheric Research, Leipzig, Germany; Department of Earth & Environmental Sciences, University of Michigan, Ann Arbor, MI, United States; Department of Earth and Environmental Sciences, University of Illinois at Chicago, Chicago, IL, United States
Recommended Citation:
Kolesar K,R,, Cellini J,et al. Effect of Prudhoe Bay emissions on atmospheric aerosol growth events observed in Utqiaġvik (Barrow), Alaska[J]. Atmospheric Environment,2017-01-01,152