undef

s1b-ew-grd-vh-20190330t135323-20190330t135427-015584-01d369-002_filter

s1b-ew-grd-vv-20190330t135323-20190330t135427-015584-01d369-001_filter

s1b-ew-grd-vv-20190330t135323-20190330t135427-015584-01d369-001_winddir

s1b-ew-grd-vh-20190330t135323-20190330t135427-015584-01d369-002_winddir