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Apr 6, 2024 · Google Earth uses digital elevation model (DEM) data collected by NASA’s Shuttle Radar Topography Mission (SRTM) to create a detailed and accurate representation of the Earth’s surface. The satellite imagery and aerial photography used in Google Earth are also sourced from various providers and are carefully calibrated to ensure accuracy.
Apr 15, 2024 · Landsat 8 is considered a multispectral satellite. It has 9 spectral bands from the Operational Land Imager (OLI) sensor. The OLI bands include coastal, blue, green, red, NIR, SWIR-1, SWIR-2, and cirrus. The ground resolution of these bands is 30 meters, except for the panchromatic band, which has a finer resolution of 15 meters.
5 days ago · Google Earth Engine (GEE) is a powerful platform that allows users to process and analyze large satellite datasets, such as Landsat 8 and 9, in a cloud-based environment. This article will focus on using GEE to perform Normalized Burn Ratio (NBR) calculations on Landsat 8/9 images.
Apr 17, 2024 · For over 50 years, NASA’s Landsat satellites have recorded our planet’s changing surface. Now, terraPulse Inc., a North Potomac, Maryland-based company, applies artificial intelligence to create meaningful maps to help academic institutions, nongovernmental organizations, and businesses understand the many impacts of climate change.
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Apr 8, 2024 · But it’s dark in polar regions much of the time. Therefore, a new acquisition scheme is adding more imagery of these dark, polar regions so these changes can be studied in more detail, even in polar twilight. In this episode of Eyes on Earth, we learn about this project, called the Landsat Extended Acquisition of the Poles (LEAP).
Apr 10, 2024 · Google Earth Engine combines a multi-petabyte catalog of satellite imagery and geospatial datasets with planetary-scale analysis capabilities. Scientists, researchers, and developers use Earth Engine to detect changes, map trends, and quantify differences on the Earth's surface.
