undef

s1b-ew-grd-vh-20190331t004928-20190331t005033-015591-01d3a6-002_filter

s1b-ew-grd-vv-20190331t004928-20190331t005033-015591-01d3a6-001_filter

s1b-ew-grd-vh-20190331t004928-20190331t005033-015591-01d3a6-002_winddir

s1b-ew-grd-vv-20190331t004928-20190331t005033-015591-01d3a6-001_winddir