undef

s1b-iw-grd-vh-20211025t165544-20211025t165609-029295-037eff-002_filter

s1b-iw-grd-vv-20211025t165544-20211025t165609-029295-037eff-001_filter

s1b-iw-grd-vv-20211025t165544-20211025t165609-029295-037eff-001_winddir

s1b-iw-grd-vh-20211025t165544-20211025t165609-029295-037eff-002_winddir