Image manipulation tools such as GDAL can read the image information, but there also is georeferenced data in the navigational charts.
22.
She has relied on resources like faded navigational charts and has canoed to islands that have no means of public access.
23.
"We're using navigational charts from surveys done in 1908, " says Kombe, who has been a lake captain for 12 years.
24.
Ideally these lines would be at right angles to the first, producing a 2D grid that could be printed on navigational charts.
25.
Problems found on unsafe ships included defective fire safety equipment, inadequate navigational charts, corrosion, unusable lifeboats and poor ventilation in engine rooms.
26.
The house's exact construction date is unknown; it is assumed to be the single house located on Moose Island on a 1781 navigational chart.
27.
Taking a fix is accomplished by making two such measurements with different pairs of stations, and then looking up both curves on a navigational chart.
28.
This light continues to serve as the front light of the Brewerton Channel Range, but it no longer is given a name in navigational charts.
29.
Some organized track systems are fixed and appear on navigational charts ( e . g ., the NOPAC tracks over the Northern Pacific Ocean ).
30.
A report issued in May 2008, stated that tracing paper ( used to protect navigational charts ) had obscured vital data during a training exercise.
