undef

s1b-iw-grd-vv-20180516t100011-20180516t100040-010945-01408f-001_filter

s1b-iw-grd-vh-20180516t100011-20180516t100040-010945-01408f-002_filter

s1b-iw-grd-vv-20180516t100011-20180516t100040-010945-01408f-001_winddir

s1b-iw-grd-vh-20180516t100011-20180516t100040-010945-01408f-002_winddir