undef

s1a-ew-grd-hh-20150708t114942-20150708t115042-006719-008fec-001_filter

s1a-ew-grd-hv-20150708t114942-20150708t115042-006719-008fec-002_filter

s1a-ew-grd-hv-20150708t114942-20150708t115042-006719-008fec-002_winddir

s1a-ew-grd-hh-20150708t114942-20150708t115042-006719-008fec-001_winddir