| It is a well established fact that ozone depletion events, or ODEs, are seen every spring in the coastal Antarctic boundary layer. Ozone flux data were recorded for a period of several weeks via the eddy covariance method, during the WINFLY campaign in the austral spring of 2004. This was done in an effort to determine whether the snow pack may be responsible for the uptake and destruction of ozone. Using a newly developed, fast response ozone instrument, and a 3D sonic anemometer, 10 Hz measurements were logged. Once the data were taken, a reasonably fast, working algorithm to process it was needed. In order to create this algorithm and ensure that it worked correctly, it was necessary to run flux tests on an atmospheric constituent that would give a large, well understood signal. For this reason, carbon dioxide flux measurements were made and analyzed using the new algorithm that was created in the IDL language. This project outlines the steps taken during the creation and testing of the algorithm, for both the carbon dioxide and ozone fluxes. Data from two different days of the WINFLY 2004 campaign are presented---one day with low horizontal wind speeds, and one with high horizontal wind speeds, to show that the ozone flux signal being received on low wind days is not from advection. The results of the low wind speed data set are then compared to tethered ozone sonde measurements taken on the same day. |
