Quelle utilisation des satellites géostationnaires dans l'intérêt de l'humanité ?
Quelle utilisation des satellites géostationnaires dans l'intérêt de l'humanité ?
Outre sa position fixe par rapport à la surface de la planète, le satellite géostationnaire présente l'avantage, du fait de l'altitude élevée, que ses instruments peuvent communiquer/observer pratiquement un tiers de la planète. Avec trois satellites on peut ainsi assurer une couverture de l'ensemble de la planète.
What can we learn from the Terra satellite?
- Data from the satellite helps scientists better understand the spread of pollution around the globe. Studies have used instruments on Terra to examine trends in global carbon monoxide and aerosol pollution. The data collected by Terra will ultimately become a new, 15-year global data set.
What is real-time satellite data?
- Real-time data is received, decoded and displayed within seconds of the satellite imaging an area. This means that every area of land on Earth is imaged at least once every 16 days. The satellite orbits at an altitude of 705 kilometers above the Earth in a near polar orbit (around the Earth from North Pole to South Pole).
Where can I find live satellite images of the Earth?
- NASA-NOAA satellite Suomi-NPP, and MODIS Aqua and Terra provide continuous imagery for “AM” at local 10:30am, and “PM” at local 1:30pm. Near real-time (live) images are captured by NOAA NESDIS GOES-East via Esri, and are updated every 10 minutes.
When was the first Earth observation satellite made?
- For 20 years, Terra, the flagship Earth observing satellite, has chronicled changes on Earth. Designed and built in the 1980s and 90s, NASA and Lockheed Martin engineers set out to build a satellite that could take simultaneous measurements of Earth’s atmosphere, land, and water.
