Coastal Change and Beach Ridges along the Northwest Coast of Peru: Image and GIS Analysis of the Chira, Piura, and Colán Beach-Ridge Plains.Published in:Journal of Coastal Research, 2004, v. 20, n. 4, p. 1102By:Rogerst, Stacy Shafer;Sandweiss, Daniel H.;Maasch, Kirk A.;Beiknap, Daniel F.;Agouris, PeggyPublication type:Article