La Niña Hits Oklahoma
by Sarah Mason
Cordell Elementary School, Cordell, Oklahoma
(presented at the 1999 Earthstorm Science Fair)

I'm in 6th grade and I like to do Mesonet projects, basketball, and ballet. I'm a straight A student and enjoy all of my classes and all of my teachers. Since my last year's Mesonet Project was on El Niño, I wanted to expand it to cover this year's La Niña.

I kept up with El Niño on the news and weather before and after my project last year. In my research last year I learned that many times a La Niña follows an El Niño. I wanted to see if our drought in 1998 was due to the El Niño changing into a La Niña. I gathered precipitation data for the months of March 1998 through October 1998 for my hometown of Cordell, Okla., Climate Division #4. I also gathered data on the SST (Sea Surface Temperature) in the equatorial Pacific. I noticed there was a definite link between the SST in the Pacific changing to a La Niña and the drought that was in our climate division. My conclusion was that the transition between El Niño and La Niña was when the drought in Climate Division #4 occurred.

I learned that the ENSO (El Niño Southern Oscillation) is the most studied weather condition of all time. El Niño and La Niña have an enormous amount of research to study. It was hard just trying to narrow down what I needed to use.

My parents helped me with all the research. I would like to thank my parents and my teacher, Mrs. Johnson. I would like to do another Mesonet project to learn more.
 
 
Oklahoma Mesonet University of Oklahoma