Hi My Friends: A VUELO DE UN QUINDE EL BLOG., The Paraná River cuts through this image of southern Brazil from the Envisat satellite.
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The Paraná River cuts through this image of southern Brazil, acquired by
the MERIS instrument on Envisat on 19 March. In the area pictured, the
river marks the borders of the Brazilian states of Mato Grosso do Sul to
the north and west, São Paulo to the east and Paraná to the south.
Agricultural structures are evident in the surrounding land. Near the
centre of the image, smoke from a fire was captured blowing southwest
from its source.
Credits: ESA
The Paraná River cuts through this image of southern Brazil from the Envisat satellite.
In the area pictured, the river marks the borders of the Brazilian states of Mato Grosso do Sul to the north and west, São Paulo to the east and Paraná to the south.
In the area pictured, the river marks the borders of the Brazilian states of Mato Grosso do Sul to the north and west, São Paulo to the east and Paraná to the south.
The river along with its tributaries creates a massive watershed that
spreads throughout much of the south central part of the continent.
Agricultural structures are evident in the surrounding land. The area is known as a large producer of coffee.
Near the centre of the image, smoke from a fire was captured blowing southwest from its source.
Major fires are visible from space – satellites detect not only the
smoke billowing from major conflagrations but also the burn scars left
in their wake and even the fires themselves – appearing as hotspots when
scanning Earth’s surface in thermal-infrared wavelengths.
Envisat’s Advanced Along-Track Scanning Radiometer was like a
thermometer, measuring thermal-infrared radiation to take the
temperature of Earth’s land and sea surfaces.
Prior to the end of the Envisat mission in April, the radiometer data contributed to the ATSR World Fire Atlas.
Temperatures exceeding about 39ºC were classed as burning fires by the
instrument, which was capable of detecting fires as small as gas flares
from industrial sites because of their high temperature. Fires are
detected best during local night, when the surrounding land is cooler.
This image was acquired by the MERIS instrument on Envisat on 19 March.
The Image of the Week is featured on ESA Web-TV, broadcast online every Friday at 10:00 CEST.
ESA
Guillermo Gonzalo Sánchez Achutegui
ayabaca@gmail.com
ayabaca@hotmail.com ayabaca@yahoo.com
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