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| Format: | Artículo científico |
| Language: | en |
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Universidad Autónoma de Baja California
2014
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| Online Access: | https://www.redalyc.org/articulo.oa?id=48031366003 |
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| _version_ | 1866585467242151936 |
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| author | Vladimir G. Toro |
| author_facet | Vladimir G. Toro |
| contents | Analysis of fetch-limited wave growth using high-frequency radars in the Gulf of Tehuantepec Vladimir G. Toro Francisco J. Ocampo-Torres Pedro Osuna Héctor García-Nava Xavier Flores-Vidal Reginaldo Durazo Ciencias de la Tierra high fetch swell ASIS buoy frequency ra dars Fetch-limited wave grow th was analyzed using high spatial and temporal resolution measurements obt ained with high-frequency (HF) radars. To calculate the wave spectrum, the second-order echo ( S 2 N ) was extracted from the Doppler spectrum and mapped to the wave frequency domain. The conversion of S 2 N to the wave frequency spectrum was carried out us ing a linear parametric model dependent on wind speed. Wave growth, represented by the dime nsionless energy and peak frequency as a f unction of dimensionles s fetch, was determ ined from the spectra calculated for 25 cells (~400 km 2 ) in the vicinity of a moored Air–Sea Interacti on Spar buoy. The buoy data were used as reference and to provide the wind informa tion required for the wave growth analysis. The simultaneous data from the buoy and HF radars sh owed a suitable agreement with the wave growth curves. The analysis of the 25 cells showed an adequate agreement and certain dispersio n around the growth curves. Possible causes of this disp ersion are related to errors in the est imation of the frequency spectrum and fetch, and the assumption of homogeneous wind conditions. Fr om the limited data set used, it was not possible to prove any impact of swell on wave growth ; however, it is possible that analysis over a wider range of swell heights may provide this evidence. Neverthe less, the results suggest that the linear parametric model is able to re produce fetch-limited wave growth. This work represents th e first effort focu sed on fetch-limited wave growth using HF radars. 2014 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48031366003 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.2 Vol.40 |
| format | Artículo científico |
| id | redalyc_48031366003 |
| language | en |
| publishDate | 2014 |
| publisher | Universidad Autónoma de Baja California |
| spellingShingle | Analysis of fetch-limited wave growth using high-frequency radars in the Gulf of Tehuantepec Vladimir G. Toro Ciencias de la Tierra high fetch swell ASIS buoy frequency ra dars Analysis of fetch-limited wave growth using high-frequency radars in the Gulf of Tehuantepec Vladimir G. Toro Francisco J. Ocampo-Torres Pedro Osuna Héctor García-Nava Xavier Flores-Vidal Reginaldo Durazo Ciencias de la Tierra high fetch swell ASIS buoy frequency ra dars Fetch-limited wave grow th was analyzed using high spatial and temporal resolution measurements obt ained with high-frequency (HF) radars. To calculate the wave spectrum, the second-order echo ( S 2 N ) was extracted from the Doppler spectrum and mapped to the wave frequency domain. The conversion of S 2 N to the wave frequency spectrum was carried out us ing a linear parametric model dependent on wind speed. Wave growth, represented by the dime nsionless energy and peak frequency as a f unction of dimensionles s fetch, was determ ined from the spectra calculated for 25 cells (~400 km 2 ) in the vicinity of a moored Air–Sea Interacti on Spar buoy. The buoy data were used as reference and to provide the wind informa tion required for the wave growth analysis. The simultaneous data from the buoy and HF radars sh owed a suitable agreement with the wave growth curves. The analysis of the 25 cells showed an adequate agreement and certain dispersio n around the growth curves. Possible causes of this disp ersion are related to errors in the est imation of the frequency spectrum and fetch, and the assumption of homogeneous wind conditions. Fr om the limited data set used, it was not possible to prove any impact of swell on wave growth ; however, it is possible that analysis over a wider range of swell heights may provide this evidence. Neverthe less, the results suggest that the linear parametric model is able to re produce fetch-limited wave growth. This work represents th e first effort focu sed on fetch-limited wave growth using HF radars. 2014 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48031366003 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.2 Vol.40 |
| title | Analysis of fetch-limited wave growth using high-frequency radars in the Gulf of Tehuantepec |
| topic | Ciencias de la Tierra high fetch swell ASIS buoy frequency ra dars |
| url | https://www.redalyc.org/articulo.oa?id=48031366003 |