Physics
Scientific paper
Jan 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006georl..3302602s&link_type=abstract
Geophysical Research Letters, Volume 33, Issue 2, CiteID L02602
Physics
2
Atmospheric Processes: Mesoscale Meteorology, Atmospheric Processes: Remote Sensing, Oceanography: Physical: Air/Sea Interactions (0312, 3339), Oceanography: Physical: Surface Waves And Tides (1222)
Scientific paper
We investigate fetch-limited wind-wave development under alternating coastal wind jets and wakes induced by orographic effects. Synthetic Aperture Radar and scatterometer resolve wind jets and wakes with widths of 5-40 km. Using the wind field and a third-generation wave model, we simulate the nearshore wave field. As a result, broader directional wave spectra are seen in wakes while we can find evolution of the directional wave spectrum with offshore distance in both wind jets and wakes. Especially within the offshore distance of 40 km, directional wave spectra have two peaks. These characteristics are well reflected in the overall directional spreading field. The overall directional spreading closely corresponds to the wind speed distribution, and is small/large in wind jet/wake region. The results mean that wave energies that come from neighboring wind jet regions cross in wake regions and combine with wave energy generated by local wind in wake regions.
Kawamura Hiroshi
Shimada Teruhisa
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