Sample interview questions: Can you discuss the challenges of applying remote sensing in land cover change detection in savannah ecosystems?
Sample answer:
Challenges in Applying Remote Sensing for Land Cover Change Detection in Savannah Ecosystems:
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Spectral Variability: Savannah ecosystems exhibit high spectral variability due to the presence of diverse vegetation types (e.g., trees, grasses, shrubs) and varying canopy structures. This variability makes it challenging to distinguish between different land cover classes.
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Subtle Transitions: Land cover changes in savannahs often involve gradual transitions, where one vegetation type progressively replaces another. Remote sensing sensors may struggle to capture these subtle changes, leading to potential false positives or negatives in detection.
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Atmospheric Interference: Savannahs are often characterized by high levels of atmospheric aerosols and haze. These factors can interfere with the radiance received by remote sensing sensors, potentially obscuring land cover features.
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Sensor Resolution: The spatial resolution of remote sensing sensors can impact the ability to detect land cover changes. Coarse-resolution imagery may miss small-scale changes or inaccuracies in boundary delineation.
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Temporal Availability: Cloud cover and atmospheric conditions can limit the availability of cloud-free imagery, especially… Read full answer
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