undef

s1a-ew-grd-vh-20210307t144524-20210307t144624-036893-0456e5-002_filter

s1a-ew-grd-vv-20210307t144524-20210307t144624-036893-0456e5-001_filter

s1a-ew-grd-vh-20210307t144524-20210307t144624-036893-0456e5-002_winddir

s1a-ew-grd-vv-20210307t144524-20210307t144624-036893-0456e5-001_winddir