undef

s1b-ew-grd-vv-20181004t093611-20181004t093712-013001-018034-001_filter

s1b-ew-grd-vh-20181004t093611-20181004t093712-013001-018034-002_filter

s1b-ew-grd-vv-20181004t093611-20181004t093712-013001-018034-001_winddir

s1b-ew-grd-vh-20181004t093611-20181004t093712-013001-018034-002_winddir