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GTFS Realtime (also known as GTFS-rt) is an extension to GTFS, in which public transport agencies share real-time vehicle locations, arrival time predictions, and alerts such as detours and cancellations via Protocol Buffers web server. [1] Realtime location data is created continuously by an agency from automatic vehicle location (AVL) systems ...
Ground track example from Heavens-Above.An observer in Sicily can see the International Space Station when it enters the circle at 9:26 p.m. The observer would see a bright object appear in the northwest, which would move across the sky to a point almost overhead, where it disappears from view, in the space of three minutes.
Global map of wind speed at 100 m above surface level. [11] Philippines wind power density map at 100 m above surface level. [11] In addition to the data available via the Global Wind Atlas website, users may also download poster maps, GIS data, and Generalized Wind Climate (GWC) files for use in commercial wind resource assessment software ...
A surface weather analysis for the United States on October 21, 2006. By that time, Tropical Storm Paul was active (Paul later became a hurricane). Surface weather analysis is a special type of weather map that provides a view of weather elements over a geographical area at a specified time based on information from ground-based weather stations.
NORAD updated its map in real time to show Santa's locations on his trip around the world. Santa's progress was shown on a live map on NORAD's website and updates are posted on the agency's ...
NASA World Wind, USGS topographic maps and several satellite and aerial image datasets, the first popular virtual globe along with Google Earth. World Wind is open-source software . NORC is a street view web service for Central and Eastern Europe. OpenWebGlobe, a virtual globe SDK written in JavaScript using WebGL.
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Surface wind direction and speed is also forecast on this type of chart. Wave prognostic charts show the expected sea state at some future time. [ 2 ] Low-level prognostic charts used by aviators show the forecast between the Earth's surface and 24,000 feet (7,300 m) above sea level over the next two days.