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Remote Sensing of Mangrove Areas on the Brazilian Coast
Remote sensing techniques are compared when applied on the survey of mangrove areas. The use of LANDSAT MSS scenes from channels 5 and 7, processed by interactive analyzer, allowed the...

Calendar: A 1985 Calendar of Bridge Photographs
Featured bridges are: Golden Gate Bridge (CA); Richmond . San Rafael Bridge (CA); Market Street Bridge (PA); Alsea Bay Bridge (OR); Longview Bridge (WA); Tyrone Bridge (KY); Newport Bridge...

Making Maps by Computer�City and Utilities Team Up in Pioneer Effort
There is heavy duplication of map making and maintenance�as many as 68 different maps of the same area were counted in the Vancouver, Canada, suburb of Burnaby. This, and the fact that...

Aerial Photography�� From Balloon to Rocket
Aerial photography began long before the Wright brothers first flew an airplane in 1903. Lifted aloft by balloons and/or kites, cameras snapped aerial photos of Paris and Boston as early...

Hydrographic Surveying Turns to Electronics
Traditional technique for measuring water depth is to use a lead-weighted line. The tag line, stretched along the water surface so soundings are made in orderly fashion, can be dangerous....

 

 

 

 

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