undef

s1a-iw-grd-vh-20190613t011113-20190613t011138-027654-031f10-002_filter

s1a-iw-grd-vv-20190613t011113-20190613t011138-027654-031f10-001_filter

s1a-iw-grd-vh-20190613t011113-20190613t011138-027654-031f10-002_winddir

s1a-iw-grd-vv-20190613t011113-20190613t011138-027654-031f10-001_winddir