Satellite mapping, bolstered by algorithmic assessment, provides an indispensable view of Earth’s canopy covering. The fraction of ground covered by tree crowns serves as a critical parameter for measuring forest ecosystems and potential carbon sinks. The maps are typically assessed by visually reviewing the satellite images or by cross-examining overlapping views but are rarely confirmed via field observations due to the sheer size of coverage and difficult terrain. Now, with the advent of unmanned aerial vehicles (UAV) equipped with high-resolution cameras, researchers are getting a better look at the greenery and calling the maps’ accuracy into question.
Click here for original story, Forest canopy covers ‘obviously’ underestimated by current assessments, researchers find
Source: Phys.org