undef

s1b-iw-grd-vv-20211112t174503-20211112t174528-029558-03870a-001_filter

s1b-iw-grd-vh-20211112t174503-20211112t174528-029558-03870a-002_filter

s1b-iw-grd-vv-20211112t174503-20211112t174528-029558-03870a-001_winddir

s1b-iw-grd-vh-20211112t174503-20211112t174528-029558-03870a-002_winddir