undef

s1b-ew-grd-hv-20170708t115652-20170708t115752-006396-00b3e7-002_filter

s1b-ew-grd-hh-20170708t115652-20170708t115752-006396-00b3e7-001_filter

s1b-ew-grd-hh-20170708t115652-20170708t115752-006396-00b3e7-001_winddir

s1b-ew-grd-hv-20170708t115652-20170708t115752-006396-00b3e7-002_winddir