Relier Pairs Test your satellite knowledge!Version en ligne Different satellites have different jobs and monitor different parts of the Earth, match the answers to the questions par Kirsty Shakespeare 1 Why is it important to to track trace gases? 2 What is 'remote sensing'? 3 Why are geostationary satellites better at monitoring a specific region? 4 What does the acronym EO stand for? 5 What is active remote sensing? 6 Why do polar orbiting satellites take clearer images? 7 What is passive remote sensing? Because they are hovering over the same spot on the equator. The process in which satellites detects reflected light or radiation. It is observing and gathering data from afar. The process in which satellites emits its own signal to capture reflected measurements. Because they are closer to Earth. Because they influence air quality, human health, and climate. Earth observation. 1 Sentinel-3 2 Sentinel-2 3 Sentinel-1 4 Sentinel-4 5 Sentinel-5P This satellites measures air quality and trace gases on a global scale. This satellite measures air quality and trace gases in real time on a regional scale. This satellite uses multiple sensors to measure sea surface topography, temperatures, and surface colours. This satellite uses radar imaging to monitor land subsidence, urban deformation, and forest changes. This satellite captures high resolution optical images of Earth's surface. 1 Biomass 2 Envisat 3 PROBA-V 4 Landsat Is the biggest satellite ever flown, it monitored the Earth’s land, atmosphere, oceans and ice caps. A miniaturised satellite, equipped with a specialised vegetation instrument to provide global vegetation cover. When launched, this satellite will give provide detailed information on forest height and above-ground biomass. Is the longest-running satellite program, used to provide data to help land managers and policy makers.
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