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          Institute: MPI für Meteorologie     Collection: Climate Processes     Display Documents

ID: 255816.0, MPI für Meteorologie / Climate Processes
Impact of ship emissions on cloud properties over coastal areas
Authors:Devasthale, Abhay; Krüger, Olaf; Graßl, Hartmut
Date of Publication (YYYY-MM-DD):2006
Title of Journal:Geophysical Research Letters
Journal Abbrev.:Geophys. Res. Letts.
Sequence Number of Article:L02811
Review Status:not specified
Audience:Not Specified
Abstract / Description:Although land based emissions in Europe are decreasing, ship emissions continue to grow. The main emissions from ships can modulate cloud properties of coastal areas and are of direct relevance to the earth radiation budget. In this context, satellite data from AVHRR onboard NOAA-14 are evaluated for six years (1997–02) in order to assess impact of ship emissions on cloud properties over coastal areas. Study area was chosen in such a way that it includes the English Channel and top three polluting harbours in Europe. Results present first evidence of possible impact of ship emissions on both cloud albedo and cloud top temperature over coastal areas using long-term satellite measurements. Increase in cloud albedo (with corresponding decrease in cloud top temperature) and higher variability are observed over coastal areas. This effect is more pronounced for areas over and around harbours and the English Channel. It also confirms indirect aerosol effects.
Free Keywords:0305 Atmospheric Composition and Structure: Aerosols and particles (0345, 4801, 4906); 0320 Atmospheric Composition and Structure: Cloud physics and chemistry; 0345 Atmospheric Composition and Structure: Pollution: urban and regional (0305, 0478, 4251); 0480 Biogeosciences: Remote sensing.
External Publication Status:published
Document Type:Article
Affiliations:MPI für Meteorologie/Climate Processes (-2005)
MPI für Meteorologie/IMPRS Earth System Modelling
External Affiliations:Meteorological Institute, University of Hamburg
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