undef

s1a-iw-grd-vv-20200516t232006-20200516t232031-032597-03c684-001_filter

s1a-iw-grd-vh-20200516t232006-20200516t232031-032597-03c684-002_filter

s1a-iw-grd-vh-20200516t232006-20200516t232031-032597-03c684-002_winddir

s1a-iw-grd-vv-20200516t232006-20200516t232031-032597-03c684-001_winddir