Eleven years ago, a group of technicians of different areas, began to study the possibilities of
the application of the Satellite Remote Sensing in our region. That group today is TELEDET.
During this lapse we work in several projects of Remote Sensing
application, particularly focused to the agricultural activity. These studies
were made not only for clients in our country, but also for foreign companies (Ex. the USA, Zimbabwe, Brazil), involving subjects such as
the tobacco culture and forestry.
From 1999 we have a satelite ground station (first of these characteristics in our country) in
the zone of "El Pinar", Canelones, Uruguay, with which we can obtain realtime images of
satellites such as NOAA, GOES and METEOSAT. In addition, for works that imply greater precision,
we are working with images of high resolution satellites. We obtain these images
from different international suppliers (see
satellite images). We have also new generation software and hardware tools, which we use
for the intention of our studies. In this site, You will find a series of images and examples of
Satellite Remote Sensing application. As we see, the diversity of applications (proven and
potential) of this discipline is enormous, and is very probable that a possible problem that You
wish to solve, (or that can be very onerous using classic technics) it
isn't contemplating in this site. Being thus, please contact us, in order to evaluate the possibilities that this
technology offer to the solution of your problem. Next we offer a pair of examples of the
advantages cost benefit of the satellite remote sensing.
See also: How to begin a project using satellite
images: the viability study
Satellite Remote Sensing benefits and comparative advantages With respect to the classic
Example #1: Forestry
We will propose as first example an area dedicated to the forestry in Uruguay. Let us suppose as
the objective of the study is the creation of a forest inventory, that includes the meassurement
of the total surface for the different planted species, its different ages and their diverses
cultural handlings. Once let us suppose that during the year, you needs to update
this forest inventory including a calculation of the surface harvested in that
period for each species, as well as, how many hectares has been transplanted during the same lapse. Finally, we suppose that
the area covered by this forestry is 4,000 hectares or more. Which is the cost of
making annually an analysis of this nature using field classic techniques? (take in mind the supposed surface).
Which is the cost of updating annually this forest inventory contracting aerial photography
The benefit that the satellite remote sensing proposes for the forestry industry bases on the
viability to make this kind of studies with a sensibly smaller cost than the classic techniques
and/or of aerial photography, and with a much greater update frequency (semestrally, for
Example #2: Rice culture
Let us suppose that it's desired to make a prognosis of the yields of the rice in a certain
influence in Uruguay.
Which is the cost of make a study if de development of the differents rice cultures contracting
aerial photography services of all "Rio Olimar" basin, for example? However, the experience show
us that to analyze the variables that can determine the yield of any short period culture (case
of the rice), is essential to make a multitemporal monitoring. This supposes that we need
to make not less than two samplings during that period, with the purpose of studying the culture
How much it would cost to make two aerial photography samplings for the area before mentioned?
The magnitude and cost of this task discard the use of the aerial photography in the analysis of
this kind of culture. A multispectral satellite image Landsat cover an area of 185x185 kilometers, whereas a
subquadrant of this image covers an area of 90x90 kilometers. The spatial cover of these images,
as weel as their versatility as far as processing and analysis, does perfectly viable this kind
of studies as far as the low cost.
On the other hand, the multispectral nature of these images allow us to reach analytical results
impossible to obtain with the classic aerial photography.
We don't try to disqualify tthe traditiona panchromatic aerial photography as a remote sensing
tool. Simply we want to exemplify the advantages that the satellite offers in certain kind of
SATELLITE IMAGES OF WORLD CAPITALS
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OF HIGH AND LOW RESOLUTION
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