NERC upper troposphere, lower stratosphere ozone programme The University of Reading




Intercontinental Transport of Ozone and its Precursors -

Forecast Trajectories
 

ITOP Plots of the Day
Selected plots are posted here daily by the ITOP-UK group. They are intended as discussion points for flight planning purposes.

In addition you can view forward trajectories from the P3, DC8 and BA146 flight tracks during the ICARTT experiment.

Posted 31/7/04.
Figure 1
Fig.1: European domain at 12UT 31 July. NOx emissions tracer on 275hPa (FL320). The cross marks the pollution exported within the WCB.

Figure 2
Fig.2: Section along the dashed line in Fig.1 showing accumulated NOx. The part of the WCB sampled by the BA146 on 29 July is at FL250-FL300 (the lowest portion).

Figure 3
Fig.3: Back trajectories in the WCB (the cross on Fig. 1). Join the dots between Pease, Faial and Creil!

Figure 4
Fig.4: Latitude of trajectory origins 7 days before arrival. Air from over Canada containing forest fire emissions is marked by the cross (FL280-FL320). The part sampled by the BA146 on 29 July would be at FL280.

Figure 5
Fig.5: Back trajectories from the cross in Fig.4 tracing back towards Northern Territories where forest fires are burning.




Previous plots of the day

Posted 26/5/04
Posted 27/5/04
Posted 28/5/04
Posted 2/6/04
Posted 3/6/04
Posted 15/6/04
Posted 16/6/04
Posted 18/6/04
Posted 25/6/04
Posted 29/6/04
Posted 6/7/04
Posted 7/7/04
Posted 11/7/04
Posted 14/7/04
Posted 21/7/04
Posted 22/7/04
Posted 26/7/04
Posted 27/7/04



Links

Home page
ITOP main page at the BADC
ICARTT forecasting page and bulletin board
NOAA Aeronomy Lab forecast products
John Methven's home page
Dr. John Methven,
Department of Meteorology,

University of Reading,
Earley Gate, PO Box 243,
Reading, RG6 6BB, UK.
Tel: +44 (0) 118 378 6015
Fax: +44 (0) 118 378 8905
Questions to
J.Methven@reading.ac.uk