1 00:00:06,950 --> 00:00:04,630 hi i'm bob ben chadler i'm a scientist 2 00:00:09,110 --> 00:00:06,960 at nasa's goddard space flight center i 3 00:00:11,190 --> 00:00:09,120 study ice i'm a glaciologist and i've 4 00:00:19,910 --> 00:00:11,200 been doing it here for almost 30 years 5 00:00:24,070 --> 00:00:21,670 west antarctica 6 00:00:26,790 --> 00:00:24,080 pine island glacier drains into an ice 7 00:00:28,950 --> 00:00:26,800 shelf and the satellite data tell us 8 00:00:31,589 --> 00:00:28,960 that's the spot that's the spot where 9 00:00:34,069 --> 00:00:31,599 the ice is thinning very rapidly it's 10 00:00:36,630 --> 00:00:34,079 doubled at speed in less than 10 years 11 00:00:39,830 --> 00:00:36,640 right now it's moving a foot an hour 12 00:00:41,830 --> 00:00:39,840 this ice is racing into the ocean 13 00:00:43,510 --> 00:00:41,840 faster and faster and we need to know 14 00:00:46,630 --> 00:00:43,520 why 15 00:00:50,869 --> 00:00:49,190 two months ago i was able to stand on 16 00:00:52,790 --> 00:00:50,879 the ice shelf 17 00:00:54,549 --> 00:00:52,800 there was debate in our community you 18 00:00:56,790 --> 00:00:54,559 can't even land on the ice shelf it's 19 00:00:58,630 --> 00:00:56,800 too heavily crevassed but again with 20 00:01:01,029 --> 00:00:58,640 satellite imagery we were able to 21 00:01:03,270 --> 00:01:01,039 identify a spot that we thought we could 22 00:01:05,270 --> 00:01:03,280 land and we did 23 00:01:07,510 --> 00:01:05,280 we're in the sweet spot on the ice shelf 24 00:01:09,270 --> 00:01:07,520 about the only place you can land 25 00:01:11,510 --> 00:01:09,280 that was the good news the bad news was 26 00:01:12,789 --> 00:01:11,520 the surface was so hard that the 27 00:01:16,630 --> 00:01:12,799 airplane 28 00:01:19,109 --> 00:01:16,640 again and again and again with with 29 00:01:24,149 --> 00:01:19,119 heavy cargo lows so we couldn't put our 30 00:01:27,510 --> 00:01:25,910 because we couldn't land on the ice 31 00:01:29,190 --> 00:01:27,520 shelf what we were going to do we still 32 00:01:31,350 --> 00:01:29,200 had some instruments we set these 33 00:01:34,149 --> 00:01:31,360 instruments up as close to the ice shelf 34 00:01:36,149 --> 00:01:34,159 as we could an automatic weather station 35 00:01:38,550 --> 00:01:36,159 fairly complex it took us about three 36 00:01:40,310 --> 00:01:38,560 days to set it all up but it's there 37 00:01:42,630 --> 00:01:40,320 it's working it's going to operate we 38 00:01:44,870 --> 00:01:42,640 hope all the way through the the dark 39 00:01:47,190 --> 00:01:44,880 cold antarctic winter helping us to 40 00:01:49,109 --> 00:01:47,200 prepare for the next time we're going to 41 00:01:52,310 --> 00:01:49,119 go to the ice shelf 42 00:01:54,550 --> 00:01:52,320 we also set up some two gps receivers 43 00:01:57,590 --> 00:01:54,560 that tell us how fast the ice is going 44 00:02:00,789 --> 00:01:57,600 and if there are any changes that also 45 00:02:03,510 --> 00:02:00,799 bones its data back by a satellite phone 46 00:02:05,590 --> 00:02:03,520 so we can receive these data right now 47 00:02:08,550 --> 00:02:05,600 in as we prepare for the next field 48 00:02:10,309 --> 00:02:08,560 season 49 00:02:13,030 --> 00:02:10,319 we'll go back we'll go back with