undef

s1a-iw-grd-vv-20211219t105555-20211219t105620-041077-04e146-001_filter

s1a-iw-grd-vh-20211219t105555-20211219t105620-041077-04e146-002_filter

s1a-iw-grd-vv-20211219t105555-20211219t105620-041077-04e146-001_winddir

s1a-iw-grd-vh-20211219t105555-20211219t105620-041077-04e146-002_winddir