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| Title: | SWASH ZONE CHARACTERISTICS AT OCEAN BEACH, SAN FRANCISCO, CA | |
| DOI No: | 10.1142/9789812709554_0078 | |
| Source: | COASTAL ENGINEERING 2006 (pp 909-921) | |
| Author(s): | L. H. Erikson
G&G Environmental, 2601 Hambleton Lane, Santa Cruz, CA 95065 contracting to USGS, USA D. M. Hanes Coastal and Marine Geology Program, U.S. Geological Survey, 400 Natural Bridges Drive, Santa Cruz, CA, 95060, USA P. L. Barnard Coastal and Marine Geology Program, U.S. Geological Survey, 400 Natural Bridges Drive, Santa Cruz, CA, 95060, USA A. E. Gibbs Coastal and Marine Geology Program, U.S. Geological Survey, 400 Natural Bridges Drive, Santa Cruz, CA, 95060, USA |
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| Abstract: | Runup data collected during the summer of 2005 at Ocean Beach, San Francisco, CA are analyzed and considered to be typical summer swash characteristics at this site. Analysis shows that the beach was dissipative with Iribarren numbers between 0.05 and 0.4 and that infragravity energy dominated. Foreshore slopes were mild between 0.01 and 0.05 with swash periods on the order of a minute. Predicted runup heights obtained with six previously developed analytical runup formulae were compared to measured extreme runup statistics. Formulations dependent on offshore wave height, foreshore slope and deep water wavelength gave reasonable results. | |
| Full Text: | View full text in PDF format (1646KB) | |
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