shi kuang 1, mike newchurch 1,john burris 2, wesley cantrell 1, patrick cullis 3, ed eloranta 4,...
TRANSCRIPT
Shi Kuang1, Mike Newchurch1 ,John Burris2, Wesley Cantrell1, Patrick Cullis3, Ed Eloranta4, Guanyu Huang1, Bryan Johnson3, Kevin Knupp1, Lihua Wang1 1U. Of Alabama-Huntsville, 2NASA/GSFC, 3NOAA/ESRL, 4U. of Wisconsin-Madison
http://nsstc.uah.edu/atmchem/lidar/DIAL_data.html [email protected] AGU Fall Meeting, 9-13 Dec. 2013, San Francisco, CA
Ozone Observations at Huntsville during the 2013 SENEX and SEAC4RS Campaigns
SENEXAir Quality and Climate in the Southeast US, A13A-0170
JPLESRL
UAHLaRC
GSFC
In the summer of 2013, the UAH Atmospheric Chemistry group measured ozone, aerosol, and meteorological data (Table 1) supporting the SENEX and SEAC4RS campaigns. The UAH ozone Differential Absorption Lidar (DIAL) measured vertical ozone profiles with a 2 or 10 min resolution between 0.1 and ~12 km during both daytime and nighttime whenever weather allowed. Daily ozonesonde were launched during the SEAC4RS field survey. We also hosted the HSRL from the University of Wisconsin at Madison (collocated with the ozone DIAL from June to September 2013) for obtaining additional aerosol information. Table 2 summarizes the dates for which we coordinated ground-based and airborne measurements above Huntsville.
In this poster, we present these ozone and aerosol data as well as their preliminary analysis. Ozone lidar data can be accessed at http://nsstc.uah.edu/atmchem/lidar/DIAL_data.html. HRSL data is available at http://hsrl.ssec.wisc.edu/. Ozonesonde data is achieved at the SEACIONS (led by Anne Thompson) web site (http://ozone.met.psu.edu/dev/research/seacions/quicklooks.php).
1. Introduction
O3 Lidar Ozonesonde Wind Doppler HSRLDays/hrs in SENEX* 20/193 8/NA 27/648 30/720Days/hrs in SEAC4RS** 18/178 32/NA 44/933 41/984
*SEAC4RS counted from 8/8 to 9/24.**SENEX counted from 5/28 to 7/20.
Table 1. Instrument operation summary for SENEX and SEAC4RS
UAH Robert Cramer Research Hall
Figure 1a. the Atmospheric Science Department of UAH
Figure 1b. The UAH ozone DIAL system
Figure 1c. Ozonesonde measurement at UAH
2. Measurements during SENEX
6/8 6/9
6/4 6/5
6/10
3. Measurements during SEAC4RS
Low O3, likely southern transport
Clouds
Both strato source, but diff air mass
Rain
STE impact on PBL and surface
Ozonesonde Strato source Low O3 at near surface after raining
6/11Figure 2. Ozone lidar measurements (in ppbv) in the first half of June 2013 showing a large influence of stratospheric sources on the mid/low tropospheric ozone variations.
6/1
Nocturnal enhancement due to transport?
6/12Figure 3. Coincident airborne and ground-based measurements on June 29 suggesting that upper-air ozone at Huntsville were affected by both STE and pollution transport.
Fog
Forest fireAircraft missed this alt.Urban.
O3 DIAL
HSRL
Note the ML height evolution
O3 by NOAA P3 CO by NOAA P3Lidar at 2100
P3 at 22:00
Sonde at 18:30
wind
Insufficient mixing with SI air
5km affected by both SI and pollution
P3 O3 digital data from Ilana Pollack and Thomas Ryerson; CO data from John S Holloway
MOZART CO fire tracer at 900hPa, 20130629 00Z
GOES 7.0um, mid-trop moist, 20130629 00Z
8/8 8/9
8/12
8/208/19
8/158/148/13
8/21 8/22
8/27 8/28 8/30
Upper- air anti-cyclone and surface pre-frontal system
Ozonesonde
Idaho smoke, ~15ppb enhancement
Enhanced O3 after cold front passing
Cloudy, moist PBL and reduced upper-tropo O3
~25ppb enhancement
UW-HSRL
Smoke detected by NASA DC8 HSRL 532 backscatter, courtesy of John Hair
Aug. 14
Rising PBL height (also P/T) after 8/18 front passage; moist PBL with low O3
High upper-tropo O3
Strato source
Higher PBL O3, broad high, high surface T
Wave breaking?
Figure 4. UAH ozone lidar observations in Aug. showing frequent enhanced upper-tropospheric ozone and low PBL ozone associated with upper-air circulations, surface meteorological conditions, convective dynamics, and aerosol transport.
Date Objective8/12 Birmingham plume, SEUS biogenics8/14 Biomass burning8/21 PBL profiles8/30 SEUS (close to Huntsville)
9/6 SEUS, NAM9/11 Convection outflow9/16 Atlanta plume, fires (close to Huntsville)
Table 2. Dates for DC8 overpassing Huntsville during SEAC4RS
4. Link with the ozone climatology
Boulder, CO
Huntsville, AL
<70ppb
Average up to 2002, [Newchurch et al., 2003]
Average up to 2012
Figure 5. Comparison of monthly mean ozone at Boulder with Huntsville using weekly ozonesonde measurements.
?
1. Ozone lidar retrievals generally agree with sondes within 10%.
2. Lidar and ozonesonde obs. show the large influence of STE on troposphere in early summer and significant biomass burning transport throughout summer. Ozone generally shows a +10ppbv enhancement associated with smoke or pollution.
3. Recent ozonesonde climatology confirms a persistent enhanced upper-tropospheric ozone at SEUS, suggested previously by Li et al. 2005 and Cooper et al. 2007. Any new evidence, anti-cyclone, wave breaking, lightning, or transport?
4. How representative for the 2013 summertime ozone?
5. Conclusions and future plan
Lidar Hatch
TOLNet