undef

s1b-ew-grd-hv-20170709t105929-20170709t110029-006410-00b44e-002_filter

s1b-ew-grd-hh-20170709t105929-20170709t110029-006410-00b44e-001_filter

s1b-ew-grd-hv-20170709t105929-20170709t110029-006410-00b44e-002_winddir

s1b-ew-grd-hh-20170709t105929-20170709t110029-006410-00b44e-001_winddir