../ noaa21_viirs_AOD550_20260418_232616_alaska_pola..> 18-Apr-2026 23:59 23177635 noaa21_viirs_IceAge_20260418_232616_alaska_pola..> 18-Apr-2026 23:59 3516355 noaa21_viirs_IceConc_20260418_232616_alaska_pol..> 18-Apr-2026 23:59 22882811 noaa21_viirs_IceSrfTemp_20260418_232616_alaska_..> 18-Apr-2026 23:59 18528115 noaa21_viirs_IceThickness_20260418_232616_alask..> 18-Apr-2026 23:59 6306087