undef

s1a-iw-grd-vv-20190306t100129-20190306t100154-026216-02ed7c-001_filter

s1a-iw-grd-vh-20190306t100129-20190306t100154-026216-02ed7c-002_filter

s1a-iw-grd-vv-20190306t100129-20190306t100154-026216-02ed7c-001_winddir

s1a-iw-grd-vh-20190306t100129-20190306t100154-026216-02ed7c-002_winddir