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Activity Number: 446
Type: Contributed
Date/Time: Tuesday, August 2, 2016 : 2:00 PM to 3:50 PM
Sponsor: Section on Statistics and the Environment
Abstract #319894
Title: An Estimation of the Variogram of Temperature Anomalies on the Earth
Author(s): Jacob Shields* and Chunfeng Huang and Scott Robeson
Companies: and Indiana University and Indiana University
Keywords: spatial ; covariance ; stationary ; spherical harmonics
Abstract:

Climate change research has progressed from estimating global averages to emphasizing spatial dependence and modeling spatial processes. Researchers model these processes using random functions over the terrestrial domain; common approaches utilize classical methods based on Euclidean geometry and stationarity assumptions. A more approporiate approach should utilize geodesics and basis function detrending in the spherical domain. We estimate the variogram of temperature anomaly data in degrees Celsius from the month of December 2009, demonstrate the necessity and functional form of a new variogram model, and fit our new model to the variogram estimates.


Authors who are presenting talks have a * after their name.

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