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Project Number:
 
14-007
Title:
 
Improved Analysis of VOC, NO2, SO2 and HCHO data from SOF, mobile DOAS and MW-DOAS during DISCOVER-AQ
Lead PI:
 
Johan Mellqvist
Institution(s) Represented:
 
Chalmers University - Johan Mellqvist, University of Houston - Barry Leffer
AQRP Project Manager:
 
David Sullivan
TCEQ Project Liaison:
 
John Jolly
Awarded Amount:
 
$97,260.00

Abstract
Improved Analysis of VOC, NO2, SO2 and HCHO data from SOF,
mobile DOAS and MW-DOAS during DISCOVER-AQ
 
Mobile optical remote sensing measurements by the SOF and mobile DOAS techniques were carried out in the Houston area during September 2013 as part of the NASA Discover Air Quality experiment. Atmospheric gas column measurements of SO2, NO2, HCHO and VOCs were carried out in a box around the Houston Ship channel, in parallel with flights by two aircraft from NASA. In this project the collected optical remote sensing data will be reanalyzed, improved and compared to other data. In particular, the investigators will work with radiative transfer modeling to minimize cloud effects.
In addition, during the 2013 field campaign a new VOC sensor was used to map ratios of the ground concentrations of alkanes and aromatic VOCs downwind of various industries. In this project the investigators will refine the spectral analysis for measurements of the aromatic VOCs from this sensor and compare the data to parallel measurements with other techniques and write a scientific paper.
This project will support the AQRP priority research area: "Improving the understanding of ozone and particulate matter (PM) formation, and quantifying the characteristics of emissions in Texas through analysis of data collected during the DISCOVER-AQ and SEAC4RS campaigns."




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