[null,null,[],[[["GTOPO30 is a global digital elevation model (DEM) with a 30 arc-second resolution (approximately 1 kilometer)."],["It was developed by the USGS in collaboration with NASA and other organizations, completed in 1996."],["GTOPO30 provides elevation data derived from various sources and is freely available for use without restrictions."],["The dataset can be accessed and analyzed using Google Earth Engine."]]],["The core content details the GTOPO30 dataset, a global digital elevation model (DEM) provided by the U.S. Geological Survey. This dataset, finalized in 1996, offers elevation data with approximately 1-kilometer horizontal grid spacing. It was made available via Earth Engine. The dataset ranges from -407 to 8752 meters in elevation. Users can freely use the data with no restrictions. The Earth Engine code snippet provided enables direct data access and visualization.\n"]]