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Contrail observations over Southern and Eastern Asia in NOAA/AVHRR data and comparisons to contrail simulations in a GCM

Meyer, Richard and Buell, Rüdiger and Leiter, Christian and Mannstein, Hermann and Pechtl, Susanna and Oki, Taikan and Wendling, Peter (2007) Contrail observations over Southern and Eastern Asia in NOAA/AVHRR data and comparisons to contrail simulations in a GCM. International Journal of Remote Sensing, 28 (9), pp. 2049-2069. DOI: 10.1080/01431160600641707.

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For the first time the contrail cover for a region covering Thailand and surrounding regions as well as for the region of Japan and its surroundings are determined by remote sensing observations. Locally received NOAA/AVHRR satellite data are analysed by a fully automated contrail detection algorithm. For both regions approx. 400 NOAA-14 satellite scenes from four months of the year 1998 were analysed. Both regions show sufficient air traffic to produce an observable amount of contrails. Thus we are able to measure for the first time contrail frequencies in the tropics and compare it to a nearby mid latitudinal region. The annual average of the daily mean contrail cloud coverage is 0.13% for the Thailand region and about 0.25% for the Japan region. For both regions the contrail cover is largest during spring. The daily cycle shows surprisingly high contrail coverage during night in spite of lower air traffic densities during night time. The satellite observed contrail cover is compared with simulations of contrails by use of the general circulation model ECHAM4 related to air traffic emissions of 1992. While the derived patterns of the regional contrail distributions agree well, the contrail coverage derived from satellite data is larger than the simulated coverage. This discrepancy appears to be mainly due to an increase in air traffic in the time period between the model study and the observations.

Document Type:Article
Title:Contrail observations over Southern and Eastern Asia in NOAA/AVHRR data and comparisons to contrail simulations in a GCM
AuthorsInstitution or Email of Authors
Meyer, RichardSunTechnics GmbH. Hamburg
Leiter, ChristianScience and Computing AG, München
Mannstein, HermannUNSPECIFIED
Pechtl, SusannaUniv. of Heidelberg, Heidelberg
Oki, TaikanUniv. of Tokyo, Tokyo, J
Wendling, PeterSunTechnics GmbH. Hamburg
Journal or Publication Title:International Journal of Remote Sensing
Refereed publication:Yes
In Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 2049-2069
Keywords:contrails, air traffic, Asia
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Atmosphären- und Klimaforschung (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Atmospheric Remote Sensing
Deposited By: Dr.rer.nat. Hermann Mannstein
Deposited On:25 Jun 2007
Last Modified:20 Oct 2014 14:31

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