June 20, 2023 - Southern California could lose many of its beaches in the coming decades. A recent study by the U.S. Geological Survey shows that up to two thirds of Southern California’s beaches could disappear by 2100 if sea levels rise 3 to 6 feet, which according to the State of California Sea-Level Rise Guidance Document is likely.

2024年5月21日 · A recent study by the U.S. Geological Survey shows that up to two thirds of Southern California's beaches could disappear by 2100 if sea levels rise 3 to 6 feet, which according to the State...

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.

2023年6月8日 · With a sea-level rise of one meter (~3 feet)—considered likely by 2100 by the State of California—a quarter of the state's coastline would see significant erosion where the beach would be completely drowned. A more extreme, low-probability rise of 3.0 meters could lead to the loss of up to three quarters of beaches.

Now scientists are predicting that between one-third to two-thirds of the beaches in Southern California will suffer such extreme erosion that they will be completely gone in the coming decades. In other words, the rising ocean will be slamming waves on cliffs and bluffs instead of rolling in and out on sandy beaches.

2022年12月12日 · Part 1: Beach erosion, largely driven by the force of the ocean and a failure to resupply sand, is changing the character of some coastal communities — possibly forever. Part 2: A beach city...

2021年12月7日 · Investigating 29 beaches along the U.S. West Coast from Washington to southern California, researchers found that winter beach erosion was 76 percent above normal, by far the highest ever recorded, and most beaches in …

2024年2月23日 · A new study predicts that, with limited human intervention, 24 to 75% of Southern California beaches could completely erode back to coastal infrastructure or sea cliffs by the year 2100.

2023年6月2日 · A new study from the U.S. Geological Survey (USGS) has found that 25% to 70% of California’s beaches could disappear by the end of this century. It follows a similar study from 2017 that found 31% to 67% of beaches in Southern California were at risk.

2023年1月1日 · Accretion and erosion hotspots are persistent, 6 years before and after nourishment. A simple drift divergence model that captures refraction over an ebb shoal describes the alongshore variable sand volume trends.