Diurnal variation of spatial structure of katabatic wind over the coastal region of the Antarctic ice-sheet

第6回極域科学シンポジウム[OM] 極域気水圏11月16日（月）　国立極地研究所１階交流アトリウ

TRANSPORT OF PINATUBO AEROSOLS TO THE ARCTIC REGION : LIDAR MEASUREMENTS IN ALASKA, WINTER 1991/1992

The concentration of stratospheric aerosols observed with a lidar in Alaska increased from December 1991 to March 1992. The measurements suggested that particulate matter injected into the stratosphere through the eruption of Pinatubo (Philippines, June 1991) was transported to high latitudes and descended there. The speed of descending motion of the aerosol layer in Alaska was about 50 m/day, larger than the value in mid-latitudes