2017年5月31日 · Southern California could lose up to two-thirds of its beaches by 2100, if sea level rises 3 to 6 feet (0.9 to 1.8 meters) and human intervention is limited, according to a study conducted at the U.S. Geological Survey and recently published in the Journal of Geophysical Research–Earth Surface.

2020年6月1日 · Two widely used process-based numerical models, XBeach and CShore, were used to simulate morphological evolution of two southern California beaches, Cardiff and Torrey Pines. The model predictions were compared to beach profile observations for six wave events of varying duration and characteristics of typical winter storms; long period swell ...

Six events with varying duration, wave intensity and beach slopes are used to calibrate and assess two process-based cross-shore models, CShore and XBeach, at two southern California beaches.

2020年6月1日 · Six events with varying duration, wave intensity and beach slopes are used to calibrate and assess two process-based cross-shore models, CShore and XBeach, at two southern California beaches. Model performance is quantitatively evaluated using high resolution spatiotemporal survey observations along with Brier Skill Scores (BSS) and a Beach ...

2017年3月15日 · We apply CoSMoS-COAST to simulate sandy shoreline evolution along 500 km of coastline in Southern California, which hosts complex mixtures of beach settings variably backed by dunes, bluffs, cliffs, estuaries, river mouths, and urban infrastructure, providing applicability of the model to virtually any coastal setting.

information exists regarding the nature of beach use within the state. The purpose of this study was to develop profiles of beach users and non-beach users within southern California, and to develop a predictive model that demonstrates how demographics and activity preferences affect participation and non-participation at southern California ...

The natural patterns of beach evolution have been significantly and permanently altered in California (and elsewhere) by sea walls, jetties, harbors, lagoon management, and inland flood control and land use.

2019年7月26日 · The Coastal Storm Modeling System for Southern California (CoSMoS 3.0) provides detailed predictions of coastal flooding due to both future sea-level rise and storms, integrated with predictions of long-term coastal evolution (beach changes and coastal cliff retreat) for the Southern California region, from Point Conception (Santa Barbara ...

WASHINGTON, DC— Using a newly-developed computer model called “CoSMoS-COAST” (Coastal Storm Modeling System – Coastal One-line Assimilated Simulation Tool) scientists predict that with limited human intervention, 31 to 67 percent of Southern California beaches may become completely eroded (up to existing coastal infrastructure or sea ...

2018年10月9日 · Flood risk is directly related to beach state (e.g., width, elevation, saturation). Currently however, even the highest quality numerical models often assume a non-evolving beach. Southern California beaches exhibit a strong seasonal signal, from narrow, rocky beaches in winter to a wide, sandy beach in summer.