Earth System Science Center and Department of Atmospheric Science at The University of Alabama in Huntsville

Next Seminar

NASA/UAH Atmospheric Science “Brown Bag” Seminar Program Presentation

Wednesday, April 2, 2014

12:45 pm;   Room 4065

Tennessee Valley Ozone Maxima Originating From Lightning NOx


Harold Peterson - NASA/MSFC-USRA


Kathy Jones - Air Pollution Control Bureau/Chattanooga, TN


The purpose of this project is to see whether ozone maxima measured by the DIfferential Absorption Lidar (DIAL) instrument in Huntsville, AL and by ambient ozone monitors in Chattanooga, TN may be traced back to lightning events occurring 24-48 hours beforehand.  The methodology is to start with lidar measurements of ozone from DIAL or surface ozone measurements depending whether the site of interest is Huntsville or Chattanooga, respectively.  The HYbrid Single Particle Lagrangian Integrated Trajectory (HYSPLIT) model is then used to determine the origin of these ozone maxima 24-48 hours prior.  Data from the National Lightning Detection Network (NLDN) are used to examine the presence/absence of lightning along the trajectory.  This type of analysis suggests that lightning-produced NOx may be responsible for some of the ozone maxima over the Tennessee Valley.


Visit Coordinator:  Harold Peterson – NASA/MSFC-USRA

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

Basic HTML is allowed. Your email address will not be published.

Subscribe to this comment feed via RSS


Get every new post delivered to your Inbox.

%d bloggers like this: