Aerial digital survey technology can provide 1.5-cm resolution or better photography of the sea surface or land surface, providing species-level identifications enabling characterization of marine and terrestrial wildlife.
Collecting wildlife data over large areas of land or water is challenging using traditional boat-based and aerial visual surveys. Aerial digital surveys are an innovative approach to collecting large-scale wildlife data (not subject to observer biases among biologists or repulsion biases from the survey vehicle) and providing an archive of information that may be revisited.
High-resolution aerial digital surveys provide images that permit species-level identifications in a terrestrial or offshore environment. Large camera arrays are mounted to dual-engine aircraft that can fly at altitudes above 1,300 feet to minimize disturbance to wildlife below.
Aerial digital surveys can provide valuable baseline data on preconstruction wildlife distributions off shore by providing spatially explicit species-specific identifications. Designed appropriately, these data can be compared to post-construction surveys to evaluate distribution shifts and displacement impacts from project structures.
The costs of aerial digital surveys are highly dependent on the size of the surveyed area and the design and purpose of the survey, as these factors affect the time needed to complete the survey, analyze the data, and identify all targets.
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