Accession Number:

ADA280423

Title:

Index and Bulk Parameters for Frequency-Direction Spectra Measured at CERC Field Research Facility, September 1990 to August 1991.

Descriptive Note:

Final rept.,

Corporate Author:

COASTAL ENGINEERING RESEARCH CENTER VICKSBURG MS

Personal Author(s):

• Long, Charles E.
• Atmadja, Juliana

Report Date:

1994-05-01

Pagination or Media Count:

103.0

Abstract:

A multiyear series of wind wave frequency-direction spectral measurements has been undertaken at the Field Research Facility of the Coastal Engineering Research Center, U.S. Army Engineer Waterways Experiment Station. Cross-spectra of surface-corrected signals from a spatial array of 15 bottom- mounted pressure sensors have been used in conjunction with an iterative maximum likelihood algorithm to estimate frequency-direction spectra in about 8 m of water, approximately 900 m offshore. This report provides an index of and describes a means of access to 1,973 spectral observations obtained from September 1990 to August 1991. This period represents the fifth year of data collection. In addition to a list of data collection start times, a set of bulk parameters is provided to characterize the observations. Included are characteristic wave height, spectral peak frequency and corresponding peak period, peak wave direction, directional spread, and reflection coefficient. Time series graphs of these parameters, as well as local winds and currents, illustrate some of the salient climatology. Frequency-direction spectra, Wave database, Wave climate, Wind waves.

Descriptors:

• *OCEAN WAVES
• *WIND
• *OPTICAL STORAGE
• DATA BASES
• ALGORITHMS
• OCEAN SURFACE
• MAXIMUM LIKELIHOOD ESTIMATION
• RESEARCH FACILITIES
• PRESSURE MEASUREMENT
• SPECTRA
• WATERWAYS
• HEIGHT
• SEA STATES
• CLIMATOLOGY
• ARMY
• COASTAL ENGINEERING
• CLIMATE
• PRESSURE
• SIGNALS
• OFFSHORE
• BATHYMETRY
• REFLECTION
• ARRAYS
• GRAPHS
• ELECTROOPTICS
• FREQUENCY
• DATA PROCESSING

Subject Categories:

• Meteorology
• Physical and Dynamic Oceanography
• Electrooptical and Optoelectronic Devices

Distribution Statement:

APPROVED FOR PUBLIC RELEASE