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 What is passive remote sensing? 2 What is active remote sensing? 3 What is 'remote sensing'? 4 Why do polar orbiting satellites take clearer images? 5 Why are geostationary satellites better at monitoring a specific region? 6 What does the acronym EO stand for? 7 Why is it important to to track trace gases? Because they are hovering over the same spot on the equator. The process in which satellites emits its own signal to capture reflected measurements. The process in which satellites detects reflected light or radiation. Earth observation. It is observing and gathering data from afar. Because they influence air quality, human health, and climate. Because they are closer to Earth. 1 Sentinel-2 2 Sentinel-3 3 Sentinel-1 4 Sentinel-4 5 Sentinel-5P This satellite uses radar imaging to monitor land subsidence, urban deformation, and forest changes. 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 captures high resolution optical images of Earth's surface. This satellites measures air quality and trace gases on a global scale. 1 Landsat 2 Biomass 3 PROBA-V 4 Envisat 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. Is the longest-running satellite program, used to provide data to help land managers and policy makers. When launched, this satellite will give provide detailed information on forest height and above-ground biomass.
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