|
TERMS OF USE:
This free image can only be used for non-commercial, personal
website use only. THIS IMAGE CANNOT BE
used in galleries, downloaded to your computer, posted on sites for
others to use, manipulated, downsized, or upsized. If you are confused about the
terms of use or have any questions then contact us before using the image.
Free Picture: Lake Balbina
|
Description
These two images show exactly the same area, Lake Balbina near Manaus, Brazil. The image on the left was created using the best global topographic data set previously available, the U.S. Geological Survey's GTOPO30. In contrast, the much more detailed image on the right was generated with data from the Shuttle Radar Topography Mission, which collected enough measurements to map 80 percent of Earth's landmass at this level of precision. Lake Balbina is a man-made reservoir created to supply hydroelectric power to the city of Manaus, located 125 kilometers (77 miles) to the south. The reservoir is located on the Uatuma River and drains a 19,100-square-kilometer (7,340-square-mile) basin of mostly upland topography where the relief extends from 30 meters (98 feet) to 200 meters(650 feet) in elevation. The lake includes a cluster of approximately 1,500 islands separated by submerged, shallow valleys within a flooded water-surface area of 2,400 square kilometers (920 square miles). Prior to the dam closure on October 1, 1987, the annually averaged flow on thriver was about 450 cubic meters (16,000 cubic feet) per second. Water depths in the full reservoir average 7.4 meters (24 feet). Because the vegetation was not cleared before filling, the lake consists mostly of forest and inundated trunks of dead, leafless trees.
Keywords
brazil, geography, jpl, manaus, nasa, uatuma river, lake balbina, free photography, free photo, free photos, free picture, free pictures, free image, free images
|
Similar Free geography Pictures
|
|
|
|
