DOI: 10.1002/grl.50097
论文题名: Estimation of 2006 Northern Hemisphere contrail coverage using MODIS data
作者: Duda D.P. ; Minnis P. ; Khlopenkov K. ; Chee T.L. ; Boeke R.
刊名: Geophysical Research Letters
ISSN: 0094-9344
EISSN: 1944-9075
出版年: 2013
卷: 40, 期: 3 起始页码: 612
结束页码: 617
语种: 英语
英文关键词: contrail coverage
Scopus关键词: Aircraft detection
; Atmospheric radiation
; Clouds
; Optical properties
; Satellite imagery
; Spectrometers
; Commercial aircraft
; contrail coverage
; Contrail detection algorithms
; Global climate model
; Moderate res-olution imaging spectrometers
; Northern Hemispheres
; Radiative forcings
; Southern Hemisphere
; Estimation
; aircraft
; Aqua (satellite)
; cirrus
; climate modeling
; contrail
; MODIS
; Northern Hemisphere
; satellite data
; Southern Hemisphere
; spatiotemporal analysis
; Atlantic Ocean
; Atlantic Ocean (North)
英文摘要: A modified automated contrail detection algorithm (CDA) using five infrared channels available from the Moderate Resolution Imaging Spectrometer onboard the Aqua satellite is used to determine linear contrail coverage over the Northern Hemisphere during 2006. Commercial aircraft flight data are employed to filter false contrail detections by the CDA. The Northern Hemisphere annual mean linear contrail coverage ranges from 0.07% to 0.40% for three different CDA sensitivities. Based on visual analyses, the medium sensitivity CDA provides the best estimate of linear contrail coverage, which averages 0.13%. If scaled to the Southern Hemisphere, the global mean coverage would be 0.07%. Coverage is greatest during winter and least during the summer with maximum coverage over the North Atlantic. Less coverage is observed over heavy European and American traffic areas, likely as a result of difficulties in detecting linear contrails that overlap with each other and with older contrail cirrus. These results are valuable for evaluating the representation of contrails and contrail cirrus within global climate models and for retrieving contrail optical properties and radiative forcing. Key Points The first global estimate of contrail coverage with a single satellite imager First use of flight track data to reduce false detections in coverage estimate Less coverage observed over heavy air traffic areas with overlapping contrails ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84878195681&doi=10.1002%2fgrl.50097&partnerID=40&md5=908a3c46e914f617e9e32a3af513202a
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6608
Appears in Collections: 气候减缓与适应
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作者单位: Science Systems and Applications, Inc., 1 Enterprise Parkway, Hampton, VA 23666, United States
Recommended Citation:
Duda D.P.,Minnis P.,Khlopenkov K.,et al. Estimation of 2006 Northern Hemisphere contrail coverage using MODIS data[J]. Geophysical Research Letters,2013-01-01,40(3).