Low-frequency variations in sea level and currents in south San Francisco Bay

Journal Article · Thu Jul 01 04:00:00 EDT 1982 · J. Phys. Oceanogr.; (United States)

DOI:https://doi.org/10.1175/1520-0485(1982)012<0658:LFVISL>2.0.CO;2· OSTI ID:6709778

Walters, R A

In order to examine physical processes in the subtidal time range, sea-level and current meter data for south San Francisco Bay (South Bay) were filtered using a low-pass digital filter to remove tidal period variations, and then subjected to an empirical orthogonal function analysis. For the the sea-level data, there is one dominant empirical mode that is correlated with nonlocal coastal forcing. A small amount of the variance is associated with local wind setup. For the current meter data, there are two dominant empirical modes that correlate with local wind forcing and tidal forcing over the spring-neap cycle. In general, South Bay is dominated by coastal forcing on sea level during all seasons, and dominated by wind and tidal forcing on the residual currents during the summer.

• Research Organization: U.S. Geological Survey, Menlo Park, California 94025
• OSTI ID: 6709778
• Journal Information: J. Phys. Oceanogr.; (United States), Journal Name: J. Phys. Oceanogr.; (United States) Vol. 12:7; ISSN JPYOB
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
580500* -- Oceanography-- (1980-1989)
CURRENTS
LEVELS
PACIFIC OCEAN
SAN FRANCISCO BAY
SEA LEVEL
SEAS
SEASONAL VARIATIONS
SURFACE WATERS
TIDE
VARIATIONS
WATER CURRENTS
WIND