undef

s1a-iw-grd-vh-20190920t222107-20190920t222132-029111-034df5-002_filter

s1a-iw-grd-vv-20190920t222107-20190920t222132-029111-034df5-001_filter

s1a-iw-grd-vh-20190920t222107-20190920t222132-029111-034df5-002_winddir

s1a-iw-grd-vv-20190920t222107-20190920t222132-029111-034df5-001_winddir