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A case study of the radiative forcing of persistent contrails evolving into contrail-induced cirrus
 

Summary: A case study of the radiative forcing of persistent contrails evolving
into contrail-induced cirrus
James M. Haywood,1
Richard P. Allan,2
Jorge Bornemann,1
Piers M. Forster,3
Peter N. Francis,1
Sean Milton,1
Gaby Ra¨del,4
Alexandru Rap,3
Keith P. Shine,4
and Robert Thorpe1
Received 11 June 2009; revised 17 September 2009; accepted 24 September 2009; published 19 December 2009.
[1] The radiative forcing due to a distinct pattern of persistent contrails that form into
contrail-induced cirrus near and over the UK is investigated in detail for a single case
study during March 2009. The development of the contrail-induced cirrus is tracked using
a number of high-resolution polar orbiting and lower-resolution geostationary satellite
instruments and is found to persist for a period of around 18 h, and at its peak, it covers
over 50,000 km2
. The shortwave (SW) and longwave (LW) radiative forcing of the

  

Source: Allan, Richard P. - Department of Meteorology, University of Reading

 

Collections: Geosciences