Sentinel-2 derivatives are rewriting land-cover history
Keywords:
Sentinel-2, 10 m multispectral, Hi-resolution, Land coverAbstract
The terms, land-use, land-cover and change detection, gained their full meanings and came to researches’ attentions after NASA’s first Landsat, the Earth Resource Technology Satellite, was launched in July 1972, started monitoring the Earth and collecting data. Successional namesake satellites have continued Earth monitoring missions, even today. They have later been challenged by SPOT and IRS missions, being also continued by France’s and India’s respected institutions. Famous CORINE land cover maps which have been released by Copernicus Land Monitoring Service for five periods since 1990 primarily used the imagery captured by these missions. In the last coverage of 2018, though, a new imagery amassed by a completely new mission called Sentinel-2, has taken over the task only to be complemented by Landsat-8 for gap filling across the Europe. 10 m multispectral imagery has surpassed expectations in all arenas and has helped in the formation of new global land-cover datasets. This study aimed to present three new such global datasets, Dynamic World by World Research Institute, Google; World Cover by ESA and Land Use/Land Cover Time-series coverages by ESRI, their specifications and field verification results.
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