DOI: 10.1002/jgrd.50713
论文题名: Multiplatform analysis of the radiative effects and heating rates for an intense dust storm on 21 June 2007
作者: Naeger A.R. ; Christopher S.A. ; Johnson B.T.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 16 起始页码: 9316
结束页码: 9329
语种: 英语
Scopus关键词: Atmospheric aerosols
; Heating rate
; Optical radar
; Storms
; Aerosol optical depths
; Aerosol optical property
; Aerosol robotic networks
; Aircraft observations
; Atmospheric heating rate
; Cloud-aerosol lidar and infrared pathfinder satellite observations
; Radiative transfer model
; Vertical structures
; Dust
; aerosol
; air temperature
; airborne survey
; CALIPSO
; CloudSat
; dust
; dust storm
; energy budget
; ground-based measurement
; heating
; optical depth
; radiative forcing
; radiative transfer
; satellite data
; top of atmosphere
; Sahara
英文摘要: Dust radiative effects and atmospheric heating rates are investigated for a Saharan dust storm on 21 June 2007 using a combination of multiple satellite data sets and ground and aircraft observations as input into a delta-four stream radiative transfer model (RTM). This combines the strengths of the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations and CloudSat satellites and in situ aircraft data to characterize the vertical structure of the dust layers (5 km in height with optical depths between 1.5 and 2.0) and underlying low-level water clouds. These observations were used, along with Aerosol Robotic Network retrievals of aerosol optical properties, as input to the RTM to assess the surface, atmosphere, and top of atmosphere (TOA) shortwave aerosol radiative effects (SWAREs). Our results show that the dust TOA SWARE per unit aerosol optical depth was -56 W m-2 in cloud-free conditions over ocean and +74 W m-2 where the dust overlay low-level clouds, and show heating rates greater than 10 K/d. Additional case studies also confirm the results of the 21 June case. This study shows the importance of identifying clouds beneath dust as they can have a significant impact on the radiative effects of dust, and hence assessments of the role of dust aerosol on the energy budget and climate. © 2013. Her Majesty the Queen in Right of Canada. American Geophysical Union. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63400
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Department of Atmospheric Sciences, University of Alabama in Huntsville, 320 Sparkman Dr., Huntsville, AL 35805, United States; Earth System Science Center, University of Alabama in Huntsville, Huntsville, AL, United States; Met Office, Exeter, United Kingdom
Recommended Citation:
Naeger A.R.,Christopher S.A.,Johnson B.T.. Multiplatform analysis of the radiative effects and heating rates for an intense dust storm on 21 June 2007[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(16)