undef

s1a-ew-grd-vh-20181110t020115-20181110t020219-024519-02b0a7-002_filter

s1a-ew-grd-vv-20181110t020115-20181110t020219-024519-02b0a7-001_filter

s1a-ew-grd-vh-20181110t020115-20181110t020219-024519-02b0a7-002_winddir

s1a-ew-grd-vv-20181110t020115-20181110t020219-024519-02b0a7-001_winddir