WEBVTT FILE 1 00:00:00.000 --> 00:00:04.330 I can’t really name anyone that has so much integrity as she does to the things she’s accomplishing. It’s pretty amazing 2 00:00:04.330 --> 00:00:08.530 to the things she’s accomplishing. It’s pretty amazing 3 00:00:08.530 --> 00:00:26.850 4 00:00:26.850 --> 00:00:30.690 Having Claire as a role model, just a strong woman in science 5 00:00:30.690 --> 00:00:36.030 and just so smart and so kind. It’s just a huge confidence booster 6 00:00:36.030 --> 00:00:41.630 it just, hey I could do that too. That’s possible, that’s successful, that’s what I want to do. 7 00:00:41.630 --> 00:00:44.430 I would characterize her as a pioneer in the field. 8 00:00:44.430 --> 00:00:49.570 The amount and quality of the work she’s put out, is second to none. 9 00:00:49.570 --> 00:00:54.150 I know people who have a lot of tenacity, I know people who have integrity. 10 00:00:54.150 --> 00:00:59.420 But it’s rare that people have both together in that combination that Claire does. 11 00:00:59.420 --> 00:01:00.080 12 00:01:00.080 --> 00:01:06.320 Every morning, Dr. Claire Parkinson gets up before sunrise and runs two miles to work. 13 00:01:06.320 --> 00:01:10.340 She hasn’t missed a day in nearly forty years. 14 00:01:10.340 --> 00:01:11.960 15 00:01:11.960 --> 00:01:16.510 NASA Explorers 16 00:01:16.510 --> 00:01:19.110 17 00:01:19.110 --> 00:01:21.940 Cryosphere 18 00:01:21.940 --> 00:01:25.240 Ice Odyssey 19 00:01:25.240 --> 00:01:28.340 Episode Three 20 00:01:28.340 --> 00:01:32.190 21 00:01:32.190 --> 00:01:37.390 To know the evolution of sea ice and how we observe it from space, is to know Claire. 22 00:01:37.390 --> 00:01:40.530 This year, she celebrating forty years at NASA. 23 00:01:40.530 --> 00:01:51.340 When I arrived at Goddard, which was in July 1978, it was an incredibly exciting period here. 24 00:01:51.340 --> 00:01:57.590 Satellites were pretty new, but a lot of data had been collected. 25 00:01:57.590 --> 00:02:03.100 NASA scientists were inundated with information and Claire was in a cohort looking at sea ice, 26 00:02:03.100 --> 00:02:07.820 trying to make sense of a jumble of very raw, very new data. 27 00:02:07.820 --> 00:02:12.330 It was around that time, that Claire and her team, at the time led by Dr. Jay Zwally 28 00:02:12.330 --> 00:02:16.530 created the principle sea ice record that we use today. 29 00:02:16.530 --> 00:02:21.130 How does something like that record help you do your job? 30 00:02:21.130 --> 00:02:26.500 Oh, that record is fundamental to understanding sea ice. 31 00:02:26.500 --> 00:02:30.640 So without it, we wouldn’t know how rapidly it's changing. 32 00:02:30.640 --> 00:02:43.580 33 00:02:43.580 --> 00:02:47.450 You may not realize it, but Claire’s work studying the changing extent 34 00:02:47.450 --> 00:02:52.440 of the ice caps deeply affected our understanding of climate change and relatedly, 35 00:02:52.440 --> 00:02:56.720 our understanding of how climate change affects life on Earth. 36 00:02:56.720 --> 00:02:58.900 37 00:02:58.900 --> 00:03:05.870 One of the clearest signals for climate change that resonates with people 38 00:03:05.870 --> 00:03:10.630 has been the shrinking of this polar ice cap in the summer 39 00:03:10.630 --> 00:03:14.620 that we’re able to see because of Claire’s work. 40 00:03:14.620 --> 00:03:20.620 After we had a record that was about fifteen to twenty years long, 41 00:03:20.620 --> 00:03:28.900 we started noticing that the extent of sea ice in the Arctic was getting smaller over time. 42 00:03:28.900 --> 00:03:30.760 43 00:03:30.760 --> 00:03:33.530 Sea ice is formed on the surface of the ocean 44 00:03:33.530 --> 00:03:36.250 and therefore is made from sea water. 45 00:03:36.250 --> 00:03:38.610 The biggest concentration is in the Arctic. 46 00:03:38.610 --> 00:03:42.850 And it’s also where the biggest loss in sea ice is occurring. 47 00:03:42.850 --> 00:03:47.890 Every year NASA reports on the sea ice minimum and maximum extents. 48 00:03:47.890 --> 00:03:51.220 As expected, the data is concerning. 49 00:03:51.220 --> 00:03:58.030 By now, not only has this trend toward lesser ice continued, 50 00:03:58.030 --> 00:04:06.340 but it’s even accelerated so that now the decreases are greater than what they had been. 51 00:04:06.340 --> 00:04:10.500 52 00:04:10.500 --> 00:04:14.350 These trends are deeply troubling, but one thing’s for sure: 53 00:04:14.350 --> 00:04:15.260 54 00:04:15.260 --> 00:04:19.630 our awareness of shrinking sea ice extent due to climate change was propelled 55 00:04:19.630 --> 00:04:23.710 faster and further after Claire Parkinson arrived at NASA. 56 00:04:23.710 --> 00:04:30.170 I mean, she takes her job seriously and the health and welfare of those instruments in space. 57 00:04:30.170 --> 00:04:33.850 Yup, she’s on it. You know it’s one of the things you don’t worry about, 58 00:04:33.850 --> 00:04:37.560 because Claire’s in the loop on these things. It’s gonna be fine. 59 00:04:37.560 --> 00:04:38.440 60 00:04:38.440 --> 00:04:41.570 In science, we stand on the shoulders of giants, 61 00:04:41.570 --> 00:04:45.150 on the shoulders of those who explored before us. 62 00:04:45.150 --> 00:04:51.190 But then some among us are giants. 63 00:04:51.190 --> 00:04:54.420 64 00:04:54.420 --> 00:04:56.630 On the next episode of Cryosphere 65 00:04:56.630 --> 00:05:00.020 For a scientist, its incredibly exciting to be studying these 66 00:05:00.020 --> 00:05:01.590 glaciers and ice sheets right now because 67 00:05:01.590 --> 00:05:05.170 they're doing something that hasn't happened in thousands of years. 68 00:05:05.170 --> 00:05:11.380 We're watching changes take place that haven't happened since the end of last ice age. 69 00:05:11.380 --> 00:05:14.800 Episode Four: Glaciers and Ice Sheets 70 00:05:14.800 --> 00:05:16.950