2010/04/27 data 1. 2 mpr data, courtesy of dr. kevin knupp
TRANSCRIPT
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2010/04/27 data
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MPR data, Courtesy of Dr. Kevin Knupp
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Cloud
Cloud
No data
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302
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Note this high
Almost cutoff low
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NAM RH, pressure-time cross section above HSV
lat:34.73, long: -86.65
http://nomads.ncdc.noaa.gov/
12Z 4/26 ~ 00Z 4/30, 100-1000hpaNote the starting time
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NAM wind speed above HSV
The direction of the axis is north-south.
60m/s=216km/hour
Subtropical jet
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Nov. 4, 2010 case
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11/3
11/611/5
11/4
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1. Comparison of the CMAQ ozone simulation and the lidar measurement for a STE event
Lidar O3
CMAQ O3
Sonde
The CMAQ model is able to capture most of the tropospheric ozone variability caused by this STE event [manuscript in prep., Arastoo et al.] and simulates extremely well the subsiding tongue-shaped ozone layer.
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13
298
Low PBL O3 due to the precipitation on 11/3 and 4,
There high RH looks wrong
Also, these should be much lower (<5%), possibly interfered by the high RH at lower alt.
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No high surface ozone, here the high index (e.g., later than 11/9) is due to PM, not ozone (check ‘ozone peak and ‘Particle peak’)
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300hpa 12Z http://www.spc.nssl.noaa.gov/obswx/maps11/3 11/4
11/5 11/6
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RH and isotachs
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Note the very broad low RH, different with other cases
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http://cimss.ssec.wisc.edu/mesoscale_winds/archive/05Nov10/
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Apr. 5, 2011 case
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Apr. 2 ozonesonde3/31 GOME
4/1 GOME
tropopause
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Sonde4/2 sonde
4/5 sonde (lower tropopause)
Low RH, likely strato O3
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4/5 sonde 4/9 sonde
3/26 sonde 4/2 sonde
3/26 RH has problem.
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Guess
Sunrise ~6:30LT Sunset ~19:15LT
FT-to-PBL transport after sunset
52ppbv 63ppbv 63ppbvEPA Daily surface max
11 increase is a evidence of STE influence on surface?
Also strato O3
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GOME total ozone
4/5 GOME 4/6 GOME
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OMI
http://toms.gsfc.nasa.gov/ozone/ozone_v8.html
http://www.temis.nl/protocols/o3col/o3col_menu_omi.php?Year=2011&Month=04&Day=03OMI can be also downloaded here
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300hpa 12Z4/3
4/64/5
4/4
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500-hpa contour
4/5 12:00UTC 4/6 12:00UTC
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4/5 12Z
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Profiler showing the jet
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Profiler (no 4/7 data)
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Cold front pass
Rain
STE airSI
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May reach ground
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4/4 4/5
4/6 4/7Rain
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2011 8/29 STE
8/20 and 8/27 sondeNote there is no ceilometer data for 8/25 26 ozone curtain.
Should be summer, not autumn
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326318
The summer theta for STT is higher, averagely peaked at 315~330K, see Wernli 2002.
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Low tropopause, STE before the lidar observation
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2011/9/30
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2012/1/4 data
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Low WV, SI
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2012/4/6-7 data
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302
318
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Intrusion is here
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2012/4/23-25 data
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Note, very likely the MPR is not able to retrieve the low tropopause, also based on the 10/04/27 case
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2012/5/10 data
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have 5/11 data
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A little close to summer, so tropopause theta is high