Digital Earth

Digital Earth is a digital reproduction and understanding of the unity of the real Earth and its related phenomena. Its core idea has two points: first, to use digital means to unify the handling of Earth issues; The second is to maximize the utilization of information resources. The development and application of remote sensing technology, geographic information systems (GIS), global positioning systems (GPS), and cloud computing provide powerful technical support for the construction of a digital earth. Through these technologies, we can obtain various information about the Earth's surface in real time, display real-time dynamic images of the Earth, and achieve comprehensive, multi-level, and multi-disciplinary observation and research of the Earth.

The unit is designed for unsupervised public use: controls are recessed or shielded, moving parts are enclosed, and the interface is operable by a child of about six with no instruction. Where a screen is used, the language can be switched without changing the hardware, and the content can be replaced on site.

The climate system of the Earth is very complex. One of the factors that have a significant regulatory effect on global temperature and water vapor is the warm and cold currents in the ocean. These global warm and cold currents drive the flow of seawater worldwide. The temperature and water vapor of the Earth will also change worldwide with the flow of ocean currents. In December 1999, more than 500 scientists, engineers, educators, managers, and entrepreneurs from 20 countries gathered in Beijing and issued the famous "Digital Earth Beijing Declaration" on the occasion of the first International Digital Earth Conference. The declaration points out that the 21st century is an era of global knowledge economy supported by information and space technology, emphasizing the importance of integrating global Earth observation systems, global spatial data infrastructure, global navigation and positioning systems, Earth space information infrastructure, and dynamic process monitoring; Recognizing that the digital earth can help respond to various challenges faced by humanity; Advocate for government and science.