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[NASA] GLOBE Expands with Landsat Land Cover Comparisons

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The Global Learning and Observations to Benefit the Environment (GLOBE) Program has launched a new feature that connects citizen scientists directly to Landsat observations. Through GLOBE, volunteers around the world collect environmental data in support of Earth system science, including land observations. GLOBE land cover observations may include photos of the landscape and a classification of the land cover, providing a valuable dataset of ground-truth observations.

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GLOBE Land Cover is an app-based tool where users can document land cover through photographs. Users can classify their observations, compare them to a satellite image, and note any differences.
GLOBE Observer

As of September, when volunteers submit land cover observations to GLOBE, they will receive an email comparing their findings to Landsat and Sentinel-2 satellite observations of the same location in the same timeframe. This direct comparison helps bridge the gap between space-based remote sensing and ground-based observations, building on the successful legacy of GLOBE cloud observations that have been matched with satellite data for years.

Why Is GLOBE Including Land Cover?

Land cover classification plays a crucial role in understanding and managing our environment. This information is essential for risk analysis related to natural disasters such as floods, wildfires, and landslides. It also enables scientists to track the impacts of land use changes over time and create detailed maps of wildlife habitats. Landsat is a key dataset in many national and global land cover classification products such as the

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GLOBE land cover allows anyone, from a highschooler to a university professor, to contribute to our understanding of Earth’s changing surface.

For more information about Landsat’s new role in GLOBE, read GLOBE’s

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