Landsat in Action - Monitoring Crop Land with Martha Anderson

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Detailed Description

Martha Anderson with the US Department of Agriculture talks about the value of Landsat and its thermal data in studying agricultural land.
 

Details

Image Dimensions: 1280 x 720

Date Taken:

Length: 00:01:28

Location Taken: Sioux Falls, SD, US

Video Credits

Producer: Steve Young

Transcript

My name is Martha Anderson,
and I work for the US

Department of Agriculture.
And I'm in the agricultural

research service.

When I started working with
Landsat, we could make

an individual map, maybe
if we're lucky a couple of

maps during a whole year
at a site. And it was very

laborious and it was very
expensive to work that way.

Since the opening of the
Landsat archive, I think

that's been one of the big
benefits, we can get every

image over multiple years
and construct these

kind of almost animations
of how water use has

changed during a given year
but also from year to year

as land use has changed,
how has the water use

responded to this. Even
over 15 years that the

landscape has just changed
tremendously.

So with the Landsat
thermal band we can map

out land surface temperature.
And with Landsat we can see

temperature of individual
fields and how it varies

from field to field. The
temperature of the land

surface gives us a good
indication of how rapidly

water is evaporating off
that surface. And this is

really important for knowing
how healthy the crops are

and also for supplying
information for irrigators.

How much water was used
last week and how much

did they have to replenish
in the current week to

keep the crops healthy.