undef

s1b-ew-grd-vh-20190803t032349-20190803t032443-017416-020c12-002_filter

s1b-ew-grd-vv-20190803t032349-20190803t032443-017416-020c12-001_filter

s1b-ew-grd-vv-20190803t032349-20190803t032443-017416-020c12-001_winddir

s1b-ew-grd-vh-20190803t032349-20190803t032443-017416-020c12-002_winddir