undef

s1a-iw-grd-vh-20190920t130548-20190920t130613-029105-034dbe-002_filter

s1a-iw-grd-vv-20190920t130548-20190920t130613-029105-034dbe-001_filter

s1a-iw-grd-vh-20190920t130548-20190920t130613-029105-034dbe-002_winddir

s1a-iw-grd-vv-20190920t130548-20190920t130613-029105-034dbe-001_winddir