(KNMI) (OZON)

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My research focused on the modelling of long-range and convective transport of chemical species in the troposphere and lower stratosphere and is part of project CARIBIC. For this, I calculated (backward) trajectories based on the position of the aircraft and analysed the meteorological situation during the flight. Some of the results can be found below.


Meteorological analyses of more recent flights have been made by by Peter van Velthoven




Trajectories:



This figure shows 5 days backward trajectories ending at the flight track of June 4, 1998 (thick black line).
Each trajectory is colored according to its pressure level (intervals indicated in the header).

Overview

Trajectory overview plots (for the whole flight track) can be found here.
- CA_yymmdd.ps shows all trajectories at yymmdd in one plot.

1997
(o) CA_971125.ps (o) CA_971126.ps (o) FW_97112600.gif (o) FW_97112612.gif
(o) CA_971216.ps (o) CA_971217.ps (o) FW_97121700.gif (o) FW_97121712.gif
Note: flight track "971126" has been extended using positions of flight "971217"

1998
(o) CA_980108.ps (o) CA_980109.ps (o) FW_98010900.gif (o) FW_98010912.gif
(o) CA_980122.ps (o) CA_980123.ps (o) FW_98012300.gif (o) FW_98012312.gif
(o) CA_980604.ps (o) CA_980605.ps (o) FW_98060500.gif (o) FW_98060512.gif
(o) CA_980702.ps (o) CA_980703.ps (o) FW_98070300.gif (o) FW_98070312.gif
(o) CA_980806.ps (o) CA_980807.ps (o) FW_98080700.gif (o) FW_98080712.gif

1999
(o) CA_990313.ps (o) CA_990314.ps (o) FW_99031400.gif (o) FW_99031412.gif
(o) CA_990327.ps (o) CA_990328.ps (o) FW_99032800.gif (o) FW_99032812.gif
(o) CA_990502.ps (o) CA_990503.ps (o) FW_99050218.gif (o) FW_99050312.gif
(o) CA_990706.ps (o) CA_990707.ps (o) FW_99070700.gif (o) FW_99070712.gif
(o) CA_990731.ps (o) CA_990801.ps (o) FW_99080100.gif (o) FW_99080112.gif
(o) CA_990905.ps (o) (o) FW_99090512.gif (o) FW_99090518.gif

WAS-periods

Trajectory plots confined to the WAS-periods can be found here.
- WAS_yymmdd.ps shows all WAS-periods at yymmdd in one plot.
(o)
WAS_971126.ps
Note: flight track "971126" has been extended using positions of flight "971217"
(o)
WAS_971217.ps
(o)
WAS_980109.ps
(o)
WAS_980123.ps
(o)
WAS_980605.ps
(o)
WAS_980703.ps
(o)
WAS_980807.ps
(o)
WAS_990313.ps
(o)
WAS_990503.ps
(o)
WAS_990707.ps
(o)
WAS_990801.ps
(o)
WAS_990905.ps


Further information:

The plots below show the potential vorticity (PV) the aircraft encountered during its flight. The PV at the aircrafts' position (every 2-3 minutes) is obtained by interpolation (in space and time) from 1° x 1°, 6 hourly ECMWF-data. The tropopause is at the 2 PVU-level.

1997
(o) PV_971125.ps (o) PV_971126.ps
(o) PV_971216.ps (o) PV_971217.ps

1998
(o) PV_980108.ps (o) PV_980109.ps
(o) PV_980122.ps (o) PV_980123.ps
(o) PV_980604.ps (o) PV_980605.ps
(o) PV_980702.ps (o) PV_980703.ps
(o) PV_980806.ps (o) PV_980807.ps

1999
(o) PV_990313.ps (o) PV_990314.ps
(o) PV_990327.ps (o) PV_990328.ps
(o) PV_990502.ps (o) PV_990503.ps
(o) PV_990706.ps (o) PV_990707.ps
(o) PV_990731.ps (o) PV_990801.ps
(o) PV_990905.ps


19980605
(o) PV&pot.temp_OLD (o) PV&pot.temp_NEW (o) Part_B.8days
(o) NOAA.ch4_980528 (o) NOAA.ch4_980529


19990707
(o) Equiv.pot.temp (o) Pot. temp
(o) Vert. wind (o) Spec. Hum. (o) Rel. Hum.
(o) Traj_990707 (o) P(t)_990707
(o) Domain_total (o) Domain_south (o) Domain_north
(o) Domain_west (o) Domain_easth (o) Domain_top (o) Domain_bottom


Link(s) to other CARIBIC topics:

(o)
Oral presentation at the IGAC-SPARC-GAW Conference on Global Measurement Systems for Atmospheric Composition, Toronto, Ontario, CANADA, May 20-22, 1997.
(o)
Oral presentation at the EGS - XXIV General Assembly, The Hague, The Netherlands, 19-23 April, 1999.


Recent flights by Peter van Velthoven


A. Zahn - plots: click here


W. Asman - plot:

AS_96010206_TR.ps


(Mailme)     Please mail any comments or questions to:
Peter van Velthoven since Hans Cuijpers has left KNMI.