Long-Term Shoreline Change at Kailua, Hawaii, Using Regularized Single Transect

Abstract (from http://www.bioone.org/doi/abs/10.2112/JCOASTRES-D-13-00202.1): Traditional long-term (decadal) and large-scale (hundreds of kilometers) shoreline change modeling techniques, known as single transect, or ST, often overfit the data because they calculate shoreline statistics at closely spaced intervals along the shore. To reduce overfitting, recent work has used spatial basis functions such as polynomials, B splines, and principal components. Here, we explore an alternative to such basis functions by using regularization to reduce the dimension of the ST model space. In our regularized-ST method, traditional ST is an end member of a continuous spectrum of models. We use an evidence information criterion...

Categories: Publication; Types: Citation; Tags: B splines, Data Visualization & Tools, Pacific Islands CASC, Science Tools For Managers, Sea-Level Rise and Coasts, All tags... Shoreline change rates, Tikhonov regularization, Water, Coasts and Ice, beaches, coastal erosion, sediment processes, Fewer tags