1 00:00:00,020 --> 00:00:04,210 Hi, it’s Greg Shirah from NASA’s Scientific Visualization Studio. 2 00:00:04,210 --> 00:00:08,400 We wanted to see if we could visualize the so-called ocean 3 00:00:08,400 --> 00:00:12,580 garbage patches. We start with data from floating, scientific buoys that 4 00:00:12,580 --> 00:00:16,770 NOAA has been distributing in the oceans for the last 35-years 5 00:00:16,770 --> 00:00:20,950 represented here as white dots. Let's speed up time to see where the buoys go... 6 00:00:20,950 --> 00:00:25,130 Since new buoys are 7 00:00:25,130 --> 00:00:29,310 continually released, it's hard to tell where older buoys move to. Let's clear the map 8 00:00:29,310 --> 00:00:33,480 and add the starting locations of all the buoys… Interesting patterns appear all 9 00:00:33,480 --> 00:00:37,660 over the place. Lines of buoys are due to ships and planes that released 10 00:00:37,660 --> 00:00:41,850 buoys periodically.If we let all of the buoys go 11 00:00:41,850 --> 00:00:46,060 at the same time, we can observe buoy migration patterns. The number of buoys 12 00:00:46,060 --> 00:00:50,230 decreases because some buoys don't last as long as others. The buoys 13 00:00:50,230 --> 00:00:54,430 migrate to 5 known gyres also called ocean garbage patches. 14 00:00:54,430 --> 00:00:58,610 15 00:00:58,610 --> 00:01:02,800 We can also see this in a computational model of 16 00:01:02,800 --> 00:01:07,010 ocean currents called ECCO-2.We release particles evenly around the world 17 00:01:07,010 --> 00:01:11,220 and let the modeled currents carry the particles. The particles from the model 18 00:01:11,220 --> 00:01:15,400 also migrate to the garbage patches. 19 00:01:15,400 --> 00:01:19,580 Even though the retimed buoys and 20 00:01:19,580 --> 00:01:23,770 modeled particles did not react to currents at the same times, the fact that the data 21 00:01:23,770 --> 00:01:27,970 tend to accumulate in the same regions show how robust the result is. 22 00:01:27,970 --> 00:01:28,989