undef

s1a-ew-grd-vh-20180914t095035-20180914t095139-023693-029526-002_filter

s1a-ew-grd-vv-20180914t095035-20180914t095139-023693-029526-001_filter

s1a-ew-grd-vv-20180914t095035-20180914t095139-023693-029526-001_winddir

s1a-ew-grd-vh-20180914t095035-20180914t095139-023693-029526-002_winddir