Summary for Field Activity Number 1979-025-FA

Alternate Leg ID: 79-6

Area of Operations: Escollo de Arenas, Isla de Vieques, Puerto Rico, Caribbean Sea, United States, North America, North Atlantic

Dates: August 20, 1979 to August 24, 1979

Objectives: Measure currents over Escollo de Arenas, a large sand body northwest of Vieques, Puerto Rico.

Type of Activity: Current velocities

Information to be derived: Time series data

Summary: Owing to last minute changes in the scientific party, the cruise went off with a bare minimum of personnel. The crew of the R/V JEAN A, however, freely offered their assistance and the offer was gratefully accepted. Their help greatly increased the amount of data we were able to collect in the short time we were out. Tides over the escollo are semidiurnal. Current drogue studies conducted during daylight hours monitored water velocities between low flood and low ebb maximums for 3 consecutive days (8/21 - 8/23). On the 23rd, the JEAN A anchored over the middle of the escollo and monitored currents at a stationary site using a hand-held current meter with deck readout. Current drogue data: 3 days; Hand-held current meter data: 1 day.

USGS Project Number: PR CO-OP

Contact: Kurt Grove ()