1. Measurements at Whistler Peak Intex-B, Spring 2006

7. Participants Environment Canada
Kurt Anlauf, Richard Leaitch, Anne Marie Macdonald
Peter Liu, Dave Halpin, John Deary, Desiree Toom-Sauntry
Sandy Steffan, Sangeeta Sharma, Art Tham
John Liggio, Shao-Meng Li, Kathy Hayden
SUNY and UC
Qi Zhang, Mike Cubison
Aerodyne
Doug Worsnop
Whistler-Blackcomb
Anton Horvath, Juniper Buller

8. Overview Instrumentation Met Parameters Gas-phase species
Particle distributions
Particle composition (filter packs)
Periods of interest
How to proceed from here …

9. Intercontinental Chemical Transport Experiment (Intex-B)
April 18 – May 18, 2006
Whistler Peak: Instrumentation
Trace Gases: O3, CO, Hg (Tekran)
Particle Physics:
Particle distributions from 10nm to 20 μm
TSI SMPS (10 nm to 500 nm), Grimm OPC (400 nm to 20 μm)
Particle Chemistry:
Filter packs (inorganics, OC/EC)
WTOF-AMS
Moudi impactor samples (inorganics, metals (ICP, XRF))
Particle Light Scattering and Absorption
Nephelometer, PSAP
Temperature, Dew point, Winds
Indicates additions during the INTEX intensive

11. Pressure and Relative Humidity at Whistler Peak

12. CO at Whistler Peak

13. Ozone

14. CO and Mercury

15. CO and Mercury – April

16. Particle distributions – 10 nm to 20 microns
dV/dlogD (um3/cm3)
Diameter (um)

17. Particle composition – from filter packs, < 2 microns

18. Ammonium vs sulphate in filter samples; sulphate is neutralized
(NH4)2 SO4

19. Particle composition – from filter packs, < 2 microns

20. Calcium at Whistler – 2002 to 2006

21. Sulphate at Whistler, 2002 to 2006

22. Dust Event – Late April

23. April 22, 2006
NAAPS NRL Model

24. April 18, 2006

25. May

26. May 10
May 16

27. Next steps:
- complete analysis of Moudi impactor samples
- write up late April transport event
- integrate ground-based temperature data (every 300 m up mountain) with aircraft profiles

29. Whistler Peak – Intex B Particle chemistry from Filter Packs and AMS
April 23 – May 17, 2006
Particle chemistry from Filter Packs and AMS
Organics dominate early in period;
Sulphate episode mid-May