Success Stories

Southern ocean sea surface roughness

Back to article

Sea surface roughness

Title: Southern ocean sea surface roughness


Copernicus Sentinel-1A images, acquired on 3 May 2016 at 10:55 (a) and 20 October 2016 at 00:44 (b) in the Amundsen Sea in ice covered waters, showing ocean waves propagating underneath sea ice.

On the left (a), example of rapid attenuation within a single image located 130 km into the ice. The top left corner of the image is closest to the ice edge with a wave height of 1.25 m, wavelength of 230 m, and propagating from the Northwest.

After several kilometres (range=14, azimuth=12~km), the wave height decreases to 0.4 m and the waves nearly vanish in the bottom right of the image. This example shows stronger wave decay than previously observed.

On the right (b), a uniform swell observed 150 km into the ice. The wave height is nearly uniform at 0.5 m with a wavelength of 330 m propagating from the North. Using the off-ice wave height, the decay is similar to what has been observed by previous studies.

Copyright: Contains modified Copernicus Sentinel data (2018)/ processed by the Laboratory of Ocean Physics and Satellite remote sensing (LOPS)

Back to article

Initial Floating Portlet

See messages from the community

Sentiboard is an open digital platform facilitating sharing of information related to the users and usage of Copernicus Sentinel data
Go to sentiboard