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4. Groundtruthing The groundtruthing team used a combination of Ikonos imagery (provided by CORALINA) and Digital Globe’s WorldView 2 imagery to identify features of interest and to navigate through the study area. The total amount of imagery purchased is shown in Table 7. Table 7. Total area of WorldView 2 4 band multispectral satellite imagery acquired for this project. Location

Site

COLOMBIA

All Serranilla Bajo Nuevo Alice Shoals

Polygon area  (sq km) 

3198 2387.4 369.72 440.27

During surveys at Alice, the team collected a total of 69 Dropcam videos and 226473 depth soundings. The groundtruthing track is shown in Fig.4. During surveys at Bajo Nuevo the team collected a total of 108 Dropcam videos and 60227 depth soundings. The groundtruthing track is shown in Fig. 5. During surveys at Serranilla the team collected a total of 70 Dropcam videos and 78071 depth soundings. The groundtruthing track is shown in Fig. 6.  

Fig. 4. Route taken by the twin V (yellow line) on Alice Bank and location of drop camera deployments (red dots) during groundtruthing efforts.   48   

Profile for Khaled bin Sultan Living Oceans Foundation

Global Reef Expedition Final Report: Colombia  

In April of 2012, scientists on the Global Reef Expedition conducted habitat mapping and coral reef assessments in the San Andres Archipelag...

Global Reef Expedition Final Report: Colombia  

In April of 2012, scientists on the Global Reef Expedition conducted habitat mapping and coral reef assessments in the San Andres Archipelag...

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