In general, bottom roughness for spatial frequencies greater than 0.044 cycles/cm completely decorrelated within 20-30 h. However, this gradual trend was also marked by acute and transitory changes in ...

This paper proposes a new geometry-based channel model for shallow-water ocean environments, in which the ocean bottom can slope gently down/up. The need for developing such an underwater acoustic ...

Pacific island nations tap indigenous know-how to safeguard ocean health Among the measures being taken are a ban on fishing and mining activities in vast marine protected areas Reading Time:5 minutes ...

The Trump administration is considering a first-of-its kind mining project at the bottom of the Pacific Ocean. But deep-sea mining has raised major environmental questions.

SYDNEY, June 26 (Reuters) - Leaders of the four biggest Pacific Islands nations have delayed adopting a joint security strategy that could provide an opening for Beijing, against a backdrop of ...