undef

s1b-ew-grd-vv-20190306t135326-20190306t135430-015234-01c808-001_filter

s1b-ew-grd-vh-20190306t135326-20190306t135430-015234-01c808-002_filter

s1b-ew-grd-vv-20190306t135326-20190306t135430-015234-01c808-001_winddir

s1b-ew-grd-vh-20190306t135326-20190306t135430-015234-01c808-002_winddir