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Activity Number: 453
Type: Contributed
Date/Time: Wednesday, August 6, 2008 : 2:00 PM to 3:50 PM
Sponsor: Section on Statistics and the Environment
Abstract - #300486
Title: It Really Is Getting Warmer
Author(s): Jun Lu*+ and Anton Kliewer and Clyde Martin+
Companies: Texas Tech University and Texas Tech University and Texas Tech University
Address: Department of Mathematics and Statistics, Lubbock, TX, 79409, Dept. of Mathematics and Statistics, Lubbock, TX, 79409,
Keywords: Climate change ; Time Series Data ; Loess Smoother ; Extreme Value Theory
Abstract:

Global warming is gaining attention as a major threat. This paper focuses on weather data collected for one city, Lubbock, Texas, over a time period of 93 years. New temperature records are being set every year in Lubbock and our goal was to determine if these records are typical or a byproduct of a warming climate. To answer these question two different methods were employed to investigate the available data. The first was to fit the data to the Generalized Extreme Value distribution. This method produced inconclusive results but did give the impression that warming exists. To check this belief, a second method involved a time series data processing technique known as "Loess" Smoother to determine the magnitude of the increasing daily temperatures over time. The results suggest a three degree temperature increase in Lubbock over the last 93 years.


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Revised September, 2008