undef

s1b-ew-grd-vh-20210929t220406-20210929t220436-028919-037380-002_filter

s1b-ew-grd-vv-20210929t220406-20210929t220436-028919-037380-001_filter

s1b-ew-grd-vv-20210929t220406-20210929t220436-028919-037380-001_winddir

s1b-ew-grd-vh-20210929t220406-20210929t220436-028919-037380-002_winddir