This means that during the next two weeks the twin engine Cessna
401, which is blue and white and has the identification number 6238Q on
its tail, will fly over Grenada, Carriacou and Petit Martinique.
The aerial survey is a major aspect of the remapping exercise
undertaken by the Agency for Reconstruction and Development (ARD) for
the Government of Grenada. The ARD has contracted TechMap of Georgia
USA to conduct the survey, with Aerial Survey Pilot Matt Boone in the
cockpit.
The survey has a ground preparation component, which requires
physically marking some 45 control points with white paint or plastic
sheeting, so that these points can be recorded by the camera on the
aircraft. The TechMap team arrived in Grenada on November 2nd and began
the ground preparation work on Saturday, November 4th.
ARD Housing Coordinator Kitwana Folkes and Assistant Surveyors
Kester Francis and Roy Rodd from the Lands and Surveys Department of
the Ministry of Agriculture are working with TechMap to mark each of
the 45 control points. Some of these points were marked by concrete
slabs and stakes the last time Grenada was aerial surveyed in the
1970s; however many of the markers have disappeared or are covered with
dirt and vegetation.
“We need to ensure that each point is clearly marked,” explained
TechMap Global Positioning System (GPS) Technician Dan Burke, in an
appeal to the public not to interfere with the markers.
TechMap Senior Camera Operator Jason Ellard is responsible for
ensuring the camera on the plane, which has a six-inch lens and runs
continuously, records everything. The survey will produce approximately
375 nine-inch square images. These images will be coordinated with the
45 control points when all the information is processed.
“When TechMap does the analysis of the film, they will zoom in on
these 45 points so that they can geo-reference the film to the existing
map grid,” Mr. Folkes added.