WEBVTT FILE 1 00:00:00.020 --> 00:00:04.180 Interviewer: Joining us now from NASA's Goddard Space Flight Center in Greenbelt, MD is 2 00:00:04.200 --> 00:00:08.190 Dr. Doug Morton who's going to talk to us about wild fires. Lets talk about 3 00:00:08.210 --> 00:00:12.230 this years wild fire season, what have you seen so far? 4 00:00:12.250 --> 00:00:16.310 Doug: The 2013 fire season has been a pretty active year across the western U.S. We got an 5 00:00:16.330 --> 00:00:20.330 early start in Southern California with fires in May. And that's just continued straight on 6 00:00:20.350 --> 00:00:24.340 through with damaging wild fires across parts of Arizona and 7 00:00:24.360 --> 00:00:28.400 Colorado some of the most damaging in history in terms of the loss of property. 8 00:00:28.420 --> 00:00:32.590 This fire season actually represents a some what average fire year when you look at the 9 00:00:32.610 --> 00:00:36.780 total amount of burned area and that's something we can do using NASA satellites to look at how 10 00:00:36.800 --> 00:00:40.790 this year compares to previous years over the last 40 years. 11 00:00:40.810 --> 00:00:44.970 Interviewer: So NASA has been monitoring fires from space for about 3 decades, what are some of the 12 00:00:44.990 --> 00:00:49.160 trends you are seeing. Doug: Across the United States we've seen a large increase 13 00:00:49.180 --> 00:00:53.340 in the total amount of burning over the last 30 years. When we look globally 14 00:00:53.360 --> 00:00:57.340 we see a singular trend with an increasing number of fires across areas 15 00:00:57.360 --> 00:01:01.350 like Southern Africa, the Amazon Brazilian Deforestation 16 00:01:01.370 --> 00:01:05.540 Arc as well as areas in Siberia. So these large wild fires 17 00:01:05.560 --> 00:01:09.730 are something we can see with the variety of satellites we have here at NASA 18 00:01:09.750 --> 00:01:13.730 from space. Interviewer: What do your projections show for the future ? 19 00:01:13.750 --> 00:01:17.820 Doug: Hot and dry conditions are really needed to have a large wild fire 20 00:01:17.840 --> 00:01:21.840 and as we look out using the latest generation of climate models we see areas of the United 21 00:01:21.860 --> 00:01:25.960 States that are already prone to fires getting hotter and dryer, here 22 00:01:25.980 --> 00:01:30.160 showing shades of red. As well as the fact that we see areas that today 23 00:01:30.180 --> 00:01:34.250 aren't at risk of large wild fires becoming a greater risk of those fires by the end 24 00:01:34.270 --> 00:01:38.260 of this century, areas like the upper Midwest or the Great Plains. 25 00:01:38.280 --> 00:01:42.440 Interviewer: So how are NASA satellites flying, 26 00:01:42.460 --> 00:01:46.610 How are NASA satellites flying some 400 miles above the earth 27 00:01:46.630 --> 00:01:50.610 used to detect and monitor wild fires? Doug: At NASA we have 28 00:01:50.630 --> 00:01:54.620 14 different satellites that are observing the earth at all times. Those satellites give 29 00:01:54.640 --> 00:01:58.710 us an opportunity to study fires globally. Satellites like NASA's LANDSAT 30 00:01:58.730 --> 00:02:02.710 series allow us to look at a detailed opportunity of mapping 31 00:02:02.730 --> 00:02:06.740 out individual fires and their burn scars, other satellites are used to actively 32 00:02:06.760 --> 00:02:10.920 detect those fires and distribute that information in near real time. We even use 33 00:02:10.940 --> 00:02:15.000 other satellite sensors to study the smoke that gets released by those fires and we can combine 34 00:02:15.020 --> 00:02:19.190 all that information into a global model that allows us to look at where fires are burning 35 00:02:19.210 --> 00:02:23.200 and how the aerosols, smoke and particulate matter that gets released from those fires 36 00:02:23.220 --> 00:02:27.200 mixes into our atmosphere and helps us understand the Earth as a system. 37 00:02:27.220 --> 00:02:31.200 Interviewer: Learn 38 00:02:31.220 --> 00:02:35.220 and see more? Doug: This information and much more 39 00:02:35.240 --> 00:02:39.230 is available at nasa./gov/fires with additional information about 40 00:02:39.250 --> 00:02:43.250 the individual satellites and the scientists that use the data form those satellites to better 41 00:02:43.270 --> 00:02:47.250 understand how fires are changing our natural ecosystems and our human societies. 42 00:02:47.270 --> 00:02:51.270 43 00:02:51.290 --> 00:02:55.270 44 00:02:55.290 --> 00:02:59.290 45 00:02:59.310 --> 00:03:03.470 46 00:03:03.490 --> 00:03:07.480 47 00:03:07.500 --> 00:03:11.500 48 00:03:11.520 --> 00:03:15.042