TY - GEN
T1 - A case study on swell modulation caused by surface winds using spaceborne synthetic aperture radar
AU - Sun, Jian
AU - Kawamura, Hiroshi
PY - 2007
Y1 - 2007
N2 - In an ERS-SAR image of the sea off Kii Peninsula on 30 March 1996, we found an atmospheric front formed by the sheltering effect of land topography and swell modulation in the sheltered/non-sheltered areas. From the SAR image, high-resolution wind speed and SAR-wave spectrum are retrieved. In the frequency range higher than the peak frequency, the SAR-spectra of the non-sheltered area have energy density higher than that of the sheltered area. The difference between the spectra of sheltered/non-sheltered areas is well explained by the simulated SAR spectra using the SAR-derived winds and a wind wave development formula suggest that the observed swell modulation is caused by the surface wind. This is a preliminary report and a full paper will appear elsewhere.
AB - In an ERS-SAR image of the sea off Kii Peninsula on 30 March 1996, we found an atmospheric front formed by the sheltering effect of land topography and swell modulation in the sheltered/non-sheltered areas. From the SAR image, high-resolution wind speed and SAR-wave spectrum are retrieved. In the frequency range higher than the peak frequency, the SAR-spectra of the non-sheltered area have energy density higher than that of the sheltered area. The difference between the spectra of sheltered/non-sheltered areas is well explained by the simulated SAR spectra using the SAR-derived winds and a wind wave development formula suggest that the observed swell modulation is caused by the surface wind. This is a preliminary report and a full paper will appear elsewhere.
KW - JONSWAP
KW - S-SWi (Swell -Surface Wind interaction)
KW - SAR
KW - Surface winds
KW - Swell
UR - http://www.scopus.com/inward/record.url?scp=82355186376&partnerID=8YFLogxK
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U2 - 10.1109/IGARSS.2007.4422962
DO - 10.1109/IGARSS.2007.4422962
M3 - Conference contribution
AN - SCOPUS:82355186376
SN - 1424412129
SN - 9781424412129
T3 - International Geoscience and Remote Sensing Symposium (IGARSS)
SP - 975
EP - 978
BT - 2007 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2007
T2 - 2007 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2007
Y2 - 23 June 2007 through 28 June 2007
ER -