Through satellites orbiting as high as
thousands of miles from the earth's surface, the form of the earth from a
distance can be imaged in a digital image. Satellite imagery is useful for
monitoring the condition of a post-disaster area. One of these resulting
distribution of volcanic ash eruption Kelud, Kediri, East Java, some time ago.
But unfortunately, to be able to get a
satellite image of Indonesia still have to rely on the space agencies of other
countries. Though not all the data was obtained for free.
"So the fact that the satellite imagery
had a strange yes. We pay some sort of subscription fee to obtain such data.
Which Land-SAT we cooperation with the Americans, the French SPOT us,"
said Head of Data Bank of the National Aeronautics and Space Agency (Lapan)
Rubini Jusuf when talking with Liputan6.com in Jakarta, Sunday (23/02/2014).
"There is also the Modis have also
foreigners, but we can receive the data free of charge."
With the image of the function, Lapan can
analyze the distribution of volcanic ash from the eruption of Mount Kelud in
East Java to West Java. The results of the analysis and then proceed to the
agency that handles disaster. It is presented the Head of Production
Information Utilization Data Center Space agency Winanto.
"The eruption of Mount Kelud is one
example, we recorded before and after Kelud erupted and also through the
MTSAT-2 and Atmospheric Lapan pendalam team we inform the distribution of
volcanic ash carried by the wind to the west," said Winanto.
Satellite Domestic Production
However, Rubini resume, Lapan currently has
succeeded in making useful satellite for disaster mitigation functions. His
name, Satelite Lapan A2. Unfortunately, the planned A2 Lapan slide since 2012
from Sriharikota, India, until now has not been flown. This is because India
must await the development of satellite Astrosat finish.
"If the satellite itself may be more
palatable yes, Mas. Problem of continuity of data, including the resolution
sat-sualnya. Because we want the data available it can then get the data in
more detail and so on," please Rubini.
For observation, this time in cooperation
with some countries Lapan. To use such a low-resolution Satellite Imagery,
RI-SAT Land holding of the United States which has a wide scope 185x185 km with
a spatial resolution of 30 meters. For medium resolution, we have cooperated
with the French SPOT Satellite 5 and 6.
"If the SPOT satellites that we received
no SPOT 6 and SPOT 5. Luasannya For the SPOT 5 65x65 km, he detailed resolution
(SPOT 6) can record from a spatial resolution of 2.5 meters. SPOT 6 If the
shift that he could receive he had konspelasi with the next generation, he
could receive SPOT 7 shifts every day because she can by order by order,
"said Rubini.
Winanto continued exposure Rubini. As for
high-resolution, according Winanto, use for commercial needs such as Quickbirds
satellite, WorldView-2 and IKONOS belonging to the United States. For the
analysis of natural disasters most commonly used IKONOS satellite.
"Spatial resolution of 1 meter IKONOS,
WorldView was 60 cm, 40 cm Quickbirds, the satellites developed
countries," concludes Winanto.
Besides being used for observation of the
disaster, the use of satellite imagery has been far-reaching, such as natural resources,
environment, population, transportation, up to the field of defense. Satellite
Lapan A2 and LAPAN new development, namely Lapan A3 notebene work of the nation
can afford to help the communication and dissemination of information about
disasters and other fields.
Source: http://news.liputan6.com
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