I noticed some strips in a Sentinel-1 EW image acquired on 2015-03-30 over Lake Superior. This strips are visible only in HV band and are in the near range.

What are they and how can I get rid of them?

This is my code.

var geometry = ee.Geometry.Point([-89.90, 47.350])
var water = ee.Image('JRC/GSW1_3/GlobalSurfaceWater');

var image = ee.ImageCollection("COPERNICUS/S1_GRD")
          .filter(ee.Filter.eq('orbitProperties_pass', 'ASCENDING'))  
          .filter(ee.Filter.listContains('transmitterReceiverPolarisation', 'HH'))

Map.addLayer(image,{min:-20,max:0,bands:'HH'},'Sentinel-1 EW HH')
Map.addLayer(image,{min:-30,max:-5,bands:'HV'},'Sentinel-1 EW HV')

This is the image enter image description here

This is the link to the script. https://code.earthengine.google.com/a476c3dfd87741ff1c6cb6097942c7fa



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