undef

s1b-ew-grd-hv-20170624t135217-20170624t135321-006193-00ae19-002_filter

s1b-ew-grd-hh-20170624t135217-20170624t135321-006193-00ae19-001_filter

s1b-ew-grd-hv-20170624t135217-20170624t135321-006193-00ae19-002_winddir

s1b-ew-grd-hh-20170624t135217-20170624t135321-006193-00ae19-001_winddir