undef

s1a-ew-grd-vh-20220219t013628-20220219t013732-041975-04ffb8-002_filter

s1a-ew-grd-vv-20220219t013628-20220219t013732-041975-04ffb8-001_filter

s1a-ew-grd-vh-20220219t013628-20220219t013732-041975-04ffb8-002_winddir

s1a-ew-grd-vv-20220219t013628-20220219t013732-041975-04ffb8-001_winddir