WEBVTT FILE

1
00:00:00.000 --> 00:00:00.030


2
00:00:00.050 --> 00:00:05.190
Farming data from space: where water flows and crops grow

3
00:00:05.210 --> 00:00:11.310
NASA's fleet of satellites helps scientists track water use from space.

4
00:00:11.330 --> 00:00:17.430
This allows scientists to see how irrigation changes over the years,

5
00:00:17.450 --> 00:00:19.680


6
00:00:19.700 --> 00:00:24.020
calculate how much water is used to irrigate crops,

7
00:00:24.040 --> 00:00:25.320


8
00:00:25.340 --> 00:00:27.380
Scientists can even monitor changes in rain

9
00:00:27.400 --> 00:00:29.480
snowfall,

10
00:00:29.500 --> 00:00:31.980
and soil moisture

11
00:00:32.000 --> 00:00:37.490
to estimate how our water supply shifts from year to year.

12
00:00:37.510 --> 00:00:39.790


13
00:00:39.810 --> 00:00:45.480
This information helps farmers grow more crops with less water.

14
00:00:45.500 --> 00:00:48.840


15
00:00:48.860 --> 00:00:53.380
With Landsat's 48 years of agricultural data, scientists can predict yield for crops like

16
00:00:53.400 --> 00:00:54.980
Cotton

17
00:00:55.000 --> 00:00:56.880
Rice

18
00:00:56.900 --> 00:00:59.080
Soy

19
00:00:59.100 --> 00:01:00.180
Corn

20
00:01:00.200 --> 00:01:03.980
Wheat

21
00:01:04.000 --> 00:01:05.380


22
00:01:05.400 --> 00:01:12.130
Even though the Landsat satellites orbit 438 miles above the Earth,

23
00:01:12.150 --> 00:01:19.980
farmers can analyze individual fields to figure out when crops will be ready to harvest.

24
00:01:20.000 --> 00:01:21.630
Red areas peak early,

25
00:01:21.650 --> 00:01:23.830
blue areas peak late.

26
00:01:23.850 --> 00:01:26.790


27
00:01:26.810 --> 00:01:29.480
With Landsat data, we can learn about the Earth

28
00:01:29.500 --> 00:01:32.380
how it sustains us, and how to cultivate it.

29
00:01:32.400 --> 00:01:41.463