[1] We present a numerical investigation of longshore currents driven by breaking waves on barred beaches. Alongshore inhomogeneity in the wave envelope or bathymetry leads to the generation of strong dipolar structures when the waves are breaking. The dynamics of these structures transfer momentum from the bar of the beach into the trough. This study is pursued using a new model that allows lo...

The major element composition, including two kinds of clay minerals and moisture content of sound-producing sand are reported for the first time. Sand from 33 beaches in Japan has been found to make sound. Ten sound-producing beaches were selected to compare with silent beach sand. Both sound-producing sand and silent beach sand are mostly composed of quartz and feldspar. The range of SiO2 cont...

Erosion is a major threat for coasts worldwide, beaches in particular, which constitute one of the most valuable coastal landforms. Vulnerability assessments related to beach erosion may contribute to planning measures to counteract erosion by identifying, quantifying and ranking vulnerability. Herein, we present a new index, the Beach Vulnerability Index (BVI), which combines simplicity in cal...

Lake Michigan is a critical resource for the residents of Chicago, providing drinking water to its 9+ million area residents. Along Chicago׳s 26 miles of public beaches the populous urban environment and this freshwater environment meet. While city-led monitoring initiatives investigate pathogenic bacteria in these nearshore waters, very little is known about other microbial species present. We...

It has been analyzed 36 samples of water proceeding from beach shower facilities: 7 of these were found to be contaminated with Legionella (19.44%). In three showers, L. pneumophila 1 was reported, in two L. pneumophila 2-14; in another two cases L. pneumophila 2-14 was found together with Legionella sp. and L. pneumoplhila 1 together with L. pneumophila 2-14. This study, which confirms the cir...

In 2007, diseases caused by Vibrio vulnificus and other Vibrio species became nationally notifiable in the United States because of the potential severity of bloodstream infections. Direct contact of open wound with seawater and the ingestion of contaminated oysters are the principal modes of transmission. Presently, no clear environmental predictors of oyster contamination are known. This stud...

The Deepwater Horizon (DWH) accident spilled over 785 million liters of crude oil into the Gulf Mexico (GOM). A substantial fraction impacted northern GOM shoreline, including Alabama beaches. beached was in form brownish-orange, water-in-oil emulsion, commonly known as mousse. Although significant remediation efforts were undertaken to clean contaminated beaches, residues tarballs continue con...