1 00:00:00,000 --> 00:00:04,000 [slate] 2 00:00:04,000 --> 00:00:08,000 [slate] 3 00:00:08,000 --> 00:00:12,000 [slate] 4 00:00:12,000 --> 00:00:16,000 So I think of Landsat as something like the Earth’s family photo album. You can go back 5 00:00:16,000 --> 00:00:20,000 in time and see the progressive changes that have occurred over the last 6 00:00:20,000 --> 00:00:24,000 50 years. And when we think about all of the 7 00:00:24,000 --> 00:00:28,000 changes in forcing that have occurred - the rise 8 00:00:28,000 --> 00:00:32,000 in global population, climate change. It’s very 9 00:00:32,000 --> 00:00:36,000 important to have this sort of long-term record to see how Earth’s 10 00:00:36,000 --> 00:00:40,000 vegetation, ice sheets, coastal areas, coral 11 00:00:40,000 --> 00:00:44,000 reefs are being affected by both human activity and natural changes 12 00:00:44,000 --> 00:00:48,000 And so it’s incredibly valuable to have 13 00:00:48,000 --> 00:00:52,000 this archive and continue with it. 14 00:00:52,000 --> 00:00:56,000 [slate] 15 00:00:56,000 --> 00:01:00,000 [slate] So first I'm really 16 00:01:00,000 --> 00:01:04,000 looking forward to a successful launch. You know when you’ve worked on a project like this for 6 years 17 00:01:04,000 --> 00:01:08,000 hundreds of people have contributed to the mission success. And so 18 00:01:08,000 --> 00:01:12,000 we’re really looking forward to seeing Landsat 9 achieve orbit 19 00:01:12,000 --> 00:01:16,000 become power positive when the solar panels deploy 20 00:01:16,000 --> 00:01:20,000 and acquire its first imagery successfully. 21 00:01:20,000 --> 00:01:24,000 After that over the next 10 years I’m really looking forward to 22 00:01:24,000 --> 00:01:28,000 having two observatories on orbit at once providing really high-quality 23 00:01:28,000 --> 00:01:32,000 data. Um, what’s really gratifying is to see when 24 00:01:32,000 --> 00:01:36,000 land managers, scientists take 25 00:01:36,000 --> 00:01:40,000 advantage of the data that we’ve worked hard to provide. And that’s what really gratifying 26 00:01:40,000 --> 00:01:44,000 That’s what’s really gratifying about the Landsat program. It continues to provide benefits 27 00:01:44,000 --> 00:01:48,000 five decades into the mission. [slate] 28 00:01:48,000 --> 00:01:52,000 [slate] 29 00:01:52,000 --> 00:01:56,000 Satellites provide a key vantage point for monitoring 30 00:01:56,000 --> 00:02:00,000 the Earth and changes on the Earth. For one thing they can cover a lot of 31 00:02:00,000 --> 00:02:00,000 ground very quickly. 32 00:02:00,000 --> 00:02:04,000 We image all of the Earth’s land area 33 00:02:04,000 --> 00:02:08,000 with two Landsat satellites every 8 days. And it's 34 00:02:08,000 --> 00:02:12,000 very difficult to do that with ground observations. In addition 35 00:02:12,000 --> 00:02:16,000 we can see parameters that are difficult to measure from 36 00:02:16,000 --> 00:02:20,000 the ground. We see a variety of wavelengths going out into the infrared with Landsat. 37 00:02:20,000 --> 00:02:24,000 Other satellites that NASA and other space agencies 38 00:02:24,000 --> 00:02:28,000 have launched see other aspects as well. They use radar 39 00:02:28,000 --> 00:02:32,000 or measure gravity. So it really provides a comprehensive view 40 00:02:32,000 --> 00:02:36,000 of the planet and with great frequency 41 00:02:36,000 --> 00:02:40,000 every few days for example. 42 00:02:40,000 --> 00:02:44,000 [slate] 43 00:02:44,000 --> 00:02:39,000 [slate] 44 00:02:39,000 --> 00:02:43,000 [slate] 45 00:02:43,000 --> 00:02:47,000 Landsat supports a variety of 46 00:02:47,000 --> 00:02:51,000 applications that help with agriculture and food security. 47 00:02:51,000 --> 00:02:55,000 First of all we can identify the types the crops 48 00:02:55,000 --> 00:02:59,000 that are growing both nationally world-wide really at the field scale. 49 00:02:59,000 --> 00:03:03,490 um, So we can basically create a crop inventory 50 00:03:03,490 --> 00:03:07,000 every year and understand how the types of crops that we grow 51 00:03:07,000 --> 00:03:11,490 have changed. We can also monitor crop health on a field scale 52 00:03:11,490 --> 00:03:15,490 and so we can look at areas that may be affected by disease 53 00:03:15,490 --> 00:03:19,490 or drought and get an early warning of that. 54 00:03:19,490 --> 00:03:23,000 And then finally Landsat is used to look at the 55 00:03:23,000 --> 00:03:27,000 water consumption of crops with the 56 00:03:27,000 --> 00:03:31,000 thermal infrared channel we can actually measure the amount what we call evapotranspiration 57 00:03:31,000 --> 00:03:35,490 or the amount of water that is fed to the atmosphere from growing 58 00:03:35,490 --> 00:03:39,490 crops. And that again is an indicator of crop heath. 59 00:03:39,490 --> 00:03:43,339 as well as how the crops are being managed.