undef

s1a-ew-grd-hv-20171122t161526-20171122t161550-019380-020dcc-002_filter

s1a-ew-grd-hh-20171122t161526-20171122t161550-019380-020dcc-001_filter

s1a-ew-grd-hv-20171122t161526-20171122t161550-019380-020dcc-002_winddir

s1a-ew-grd-hh-20171122t161526-20171122t161550-019380-020dcc-001_winddir