undef

s1a-ew-grd-vh-20201027t103902-20201027t104006-034981-04147d-002_filter

s1a-ew-grd-vv-20201027t103902-20201027t104006-034981-04147d-001_filter

s1a-ew-grd-vh-20201027t103902-20201027t104006-034981-04147d-002_winddir

s1a-ew-grd-vv-20201027t103902-20201027t104006-034981-04147d-001_winddir