undef

s1a-ew-grd-vv-20190311t024414-20190311t024514-026284-02f003-001_filter

s1a-ew-grd-vh-20190311t024414-20190311t024514-026284-02f003-002_filter

s1a-ew-grd-vh-20190311t024414-20190311t024514-026284-02f003-002_winddir

s1a-ew-grd-vv-20190311t024414-20190311t024514-026284-02f003-001_winddir