Abstract by Brandon Cook
Spatial Modeling of Dune Width on Titan
Saturn’s largest moon Titan has a dense atmosphere with equatorial winds that create particle dunes. The Cassini-Huygens fly-by in 2004 collected data and sent back high-resolution images of these surface features. From the image, we have measurements of width, spacing, distance from sand sea border, and elevation at 90,000 dune locations.
We are interested in estimating the structure of dune widths and spacing across Titan’s sand seas. In order to accomplish this, we explore spatial methods that allow for large sample spatial prediction, anisotropy, and long range dependence. We are also interested in determining if there is a relationship between the response variables (width and spacing) and covariates (elevation and distance from the sand sea border) using spatial regression models.