1 00:00:05,090 --> 00:00:10,250 [Michael Studinger] I'm Michael Stundinger and I'm the 2 00:00:10,270 --> 00:00:15,300 project scientist for Operation IceBridge. 3 00:00:15,320 --> 00:00:20,440 [music] In the particular upcoming campaign, we will focus on 4 00:00:20,460 --> 00:00:25,630 measuring ice surface elevations over Antarctica with a laser scanner 5 00:00:25,650 --> 00:00:30,740 we have mounted on the DC-8 aircraft. And we will also look into measuring 6 00:00:30,760 --> 00:00:35,930 the surface elevation and surface characteristics of the sea ice that surrounds 7 00:00:35,950 --> 00:00:41,000 Antarctica and the Southern Ocean. Since we have this opportunity with a big aircraft 8 00:00:41,020 --> 00:00:46,130 that can carry many different instruments that not only measure the ice surface 9 00:00:46,150 --> 00:00:51,320 but we have also ice-penetrating radar instruments on the aircraft that 10 00:00:51,340 --> 00:00:56,420 allow us to actually look through the ice and find out how thick the ice is over the interior of Antarctica. 11 00:00:56,440 --> 00:01:01,610 This is something we need to know in great detail in order to 12 00:01:01,630 --> 00:01:06,670 have better ice sheet models that will allow us to characterize how much sea level 13 00:01:06,690 --> 00:01:11,810 will rise in the next decades. 14 00:01:11,830 --> 00:01:16,990 About the time we started flying in Antarctica last year in October, ICESat 15 00:01:17,010 --> 00:01:22,100 stopped collecting data. The follow-up mission, ICESat-II, will launch 16 00:01:22,120 --> 00:01:27,280 in 2015. In order to fill this gap, NASA 17 00:01:27,300 --> 00:01:32,350 has launched Operation IceBridge. We're looking back through ten years 18 00:01:32,370 --> 00:01:37,490 of weather history to come up with a certain estimate of how many flights, depending on