undef

s1b-ew-grd-vh-20181005t020114-20181005t020215-013011-018087-002_filter

s1b-ew-grd-vv-20181005t020114-20181005t020215-013011-018087-001_filter

s1b-ew-grd-vh-20181005t020114-20181005t020215-013011-018087-002_winddir

s1b-ew-grd-vv-20181005t020114-20181005t020215-013011-018087-001_winddir