Remote Sensing Data

Remote sensing instruments can measure the characteristics of objects without contacting with them. Based on the principle that different objects have different responses to electromagnetic waves, remote sensing instruments collect data on the ground, detect the nature of surface objects, and identify various types of ground objects by sensors boarded on different platforms (tower, balloon, aircraft, rocket, manmade Earth satellite, spacecraft, space shuttle, etc.) above the ground. Remote sensing is the systematic integration of technologies for detecting and monitoring the Earth’ s resources and environment, including the process of detecting electromagnetic waves (radiation and scattering) on the Earth’s surface, transmitting information, processing, and interpretation. After decades of development, remote sensing technology has been widely used in resource management, environmental studies, hydrology, meteorology, geology, urban studies, agriculture, forestry, surveying and mapping, disaster analysis, and other fields.