undef

s1a-ew-grd-vv-20201103t103118-20201103t103222-035083-041800-001_filter

s1a-ew-grd-vh-20201103t103118-20201103t103222-035083-041800-002_filter

s1a-ew-grd-vh-20201103t103118-20201103t103222-035083-041800-002_winddir

s1a-ew-grd-vv-20201103t103118-20201103t103222-035083-041800-001_winddir