undef

s1a-iw-grd-vv-20190912t055248-20190912t055313-028984-034991-001_filter

s1a-iw-grd-vh-20190912t055248-20190912t055313-028984-034991-002_filter

s1a-iw-grd-vv-20190912t055248-20190912t055313-028984-034991-001_winddir

s1a-iw-grd-vh-20190912t055248-20190912t055313-028984-034991-002_winddir