undef

s1b-ew-grd-vh-20181005t215009-20181005t215113-013023-0180e1-002_filter

s1b-ew-grd-vv-20181005t215009-20181005t215113-013023-0180e1-001_filter

s1b-ew-grd-vh-20181005t215009-20181005t215113-013023-0180e1-002_winddir

s1b-ew-grd-vv-20181005t215009-20181005t215113-013023-0180e1-001_winddir