Investigating Stratosphere-Troposphere-Intrusion by Ozonesonde and TES data

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Investigating Stratosphere-Troposphere-Intrusion
by Ozonesonde and TES data

• Huixia He, D.W. Tarasick, W. Hocking
• Environment Canada
• University of Western Ontario
• Jan 8, 2009

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Acknowledgement

• TES Science Team
• ICARTT-IONS06 Science team
• Trevor K. Carey-Smith (NIWA, New Zealand)
• D. Jones (UofT)

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What we hope to do

• Investigating stratosphere-troposphere-intrusions
  (STI) using tropospheric emission spectrometer
  (TES) data, ozonesonde data and the GEM-Flexpart
  model.

Ozonesonde
GEM-Flexpart
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What we hope to do

• Investigating stratosphere-troposphere-intrusions
  (STI) using tropospheric emission spectrometer
  (TES) data, ozonesonde data and the GEM-Flexpart
  model.

Ozonesonde
GEM-Flexpart
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What we hope to do

• Investigating stratosphere-troposphere-intrusions
  (STI) using tropospheric emission spectrometer
  (TES) data, ozonesonde data and the GEM-Flexpart
  model.

Ozonesonde
GEM-Flexpart
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What we hope to do

• Investigating stratosphere-troposphere-intrusions
  (STI) using tropospheric emission spectrometer
  (TES) data, ozonesonde data and the GEM-Flexpart
  model.

Ozonesonde
GEM-Flexpart

• Incorporating new GEM-MACH air quality prediction
  model to study character of STI.

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GEM-Flexpart

• GEM-v3.2.0, the Canadian forecast model, coving
  North America with 58 vertical levels.
• Lagrangian particle dispersion model, Flexpart.

0.5 x 0.5o resolution
Both plots cited from Trevors draft for JGR
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Ozonesonde

• balloon-borne instruments, GPS with EN-SCI model
  2Z-ECC ozonesondes and Vaisala RS80 radiosonde.
• Temporally dense ozonesonde launches (daily).

2 x 1o resolution Usually late afternoons or
nights
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TES

• High resolution Fourier transform spectrometer
  (FTS) on Aura satellite.
• launched 2004 July 15, 705 km sun-synch orbit.
• Nadir footprint 5.3km x 8.3km.

O3 Similar
Worden, Bowman, Noone, et al. (2006).
2 x 1o resolution Early mornings (6-8) or late
afternoons (17-19)
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GEM-Flexpart Ozonesonde TES

Unit ppb (intrusion from stratosphere) ppb observation values ppb observation values
Time 1200 UT Usually 1700-2300 UT 600-800 UT or 1700-1900 UT
Altitude 1km Approximate 1km 0.9,1.1km
Resolution 0.5 x 0.5o 2 x 1o 2 x 1o
longitude 240E300E latitude 28N58N same same
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April 30, 2006
GEM-Flexpart
IONS-Ozonesonde
TES
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May 1, 2006
GEM-Flexpart
IONS-Ozonesonde
TES
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May 2, 2006
GEM-Flexpart
IONS-Ozonesonde
TES
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May 3, 2006
GEM-Flexpart
IONS-Ozonesonde
TES
UV g Ozone
Carbon monoxide Organic gases

Nitrogen oxides
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May 4, 2006
GEM-Flexpart
IONS-Ozonesonde
TES
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May 5, 2006
GEM-Flexpart
IONS-Ozonesonde
TES
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May 6, 2006
GEM-Flexpart
IONS-Ozonesonde
TES
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Summary for 2006 Spring Cases

• Getting started
• Combination IONS data, TES data, Flexpart model,
  Brewer data, radar data and AQ models.
• A larger picture of STE.