Application of geographic information technology

Application of geographic information technology;

1. application of remote sensing in resource investigation, environment and disaster monitoring

① General situation of resources: mineral resources, water, land, forest and grassland, wildlife resources, etc.

② Disaster monitoring: drought, flood, landslide, debris flow, earthquake, agricultural and forestry pests and diseases, forest fire, etc.

③ Environmental monitoring: desertification, soil salinization, environmental pollution, marine ecology, global climate change and its impact, vegetation change and iceberg drifting at sea.

Second, the global positioning system (GPS)

Application of global positioning system in positioning and navigation;

(1) Military is the earliest application field of GPS technology.

(2) Civil GPS is mainly used in traffic vehicle navigation management, aircraft positioning and navigation, as well as geodesy, field exploration, emergency rescue, tourism exploration, agricultural monitoring and ecological research.

(3) Navigation is the biggest user of GPS navigation application.

(4)GPS air navigation realizes the optimal airspace division and management, air traffic flow management and flight route management, and ensures the safety and flexibility of air traffic control.

(5)GPS can also be applied to tourism exploration.

Three. geographical information system (GIS)

The main functions of geographic information system are data collection, data analysis and decision application. The main problems that can be solved include spatial distribution and location analysis, trend analysis, pattern analysis and simulation results.