Mean Significant Wave Height, Amplitude of the its Annual Cycle and Mean Wave Energy Flux from Jason-1 and -2 (2001-2016)

This dataset contains the results of the accepted Nature Communications manuscript entitled "Global coastal attenuation of wind-waves observed with radar altimetry", with the following abstract:

Coastal studies of wave climate and evaluations of wave energy resources are mainly regional and based on the use of computationally very expensive models or a network of in-situ data. Considering the significant wave height, satellite radar altimetry provides an established global and relatively long-term source, whose coastal data are nevertheless typically flagged as unreliable within 30 km of the coast. This study exploits the reprocessing of the radar altimetry signals with a dedicated fitting algorithm to retrieve several years of significant wave height records in the coastal zone. We show significant variations in annual cycle amplitudes and mean state in the last 30 km from the coastline compared to offshore, in areas which were up to now not observable with standard radar altimetry. Consequently, a decrease of the average wave energy flux is observed. Globally, we found that the mean significant wave height at 3 km off the coast is on average 22% smaller than offshore, the amplitude of the annual cycle is reduced on average by 14% and the mean energy flux loses 38% of its offshore value.

Disciplines

Physical oceanography, Cross-discipline, Environment

Keywords

Wave Height, Wave Energy, Wave Power, Oceanography, Satellite Altimetry, Coast

Location

90N, -90S, 180E, -180W

Data

FileSizeFormatProcessingAccess
Mean Significant Wave Height (m)
18 MoTEXTProcessed data
Amplitude of the Annual Cycle of the Significant Wave Height (m)
18 MoTEXTProcessed data
Mean Wave Energy Flux (kW/m)
18 MoTEXTProcessed data
How to cite
Passaro Marcello, Schwatke Christian, Dettmering Denise, Seitz Florian (2021). Mean Significant Wave Height, Amplitude of the its Annual Cycle and Mean Wave Energy Flux from Jason-1 and -2 (2001-2016). SEANOE. https://doi.org/10.17882/80341
In addition to properly cite this dataset, it would be appreciated that the following work(s) be cited too, when using this dataset in a publication :
Passaro Marcello, Hemer Mark A., Quartly Graham D., Schwatke Christian, Dettmering Denise, Seitz Florian (2021). Global coastal attenuation of wind-waves observed with radar altimetry. Nature Communications, 12 (1), -. https://doi.org/10.1038/s41467-021-23982-4

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