Dynamic commodity risk indexing

List of Contents of this article:

• 1, What is the use of geographic information system
• 2、 What is the difference between geographic information system and general information system?
• 3, What is the geographic information system?
• 4, What are the main functions of geographic information system?

What is the use of geographic information system

1. Its basic functions include data collection, management, processing, analysis and output. At the same time, the geographic information system relies on these basic functions to further deduce and enrich relevant functions through the use of spatial analysis technology, model analysis technology, network technology and database integration technology to meet the broad needs of society and users.

2. The main functions of geographic information system: data acquisition, data analysis, decision-making application, etc. The main problems that can be solved include geospatial distribution and location analysis, trend analysis, pattern analysis, and simulation results.

3. Geographic information system is widely used in resource survey, environmental assessment and transportation, etc.The basic functions of geographic information system include: data acquisition function, data editing and processing, data storage, organization and management function, spatial query and spatial analysis function, and data output function.

4. Geographic information technology, also known as "3S" technology, includes Global Positioning System (GPS), Remote Sensing (RS) and Geographic Information System. It can obtain, process and analyze geographical time and space information.

5. GIS is a Geographic Information System (Geographic Information System or Geo-Information system, GIS). The role of GIS is to collect, store, manage, calculate, analyze, display and describe relevant geographical distribution data in entire or part of the earth's surface (including the atmosphere) space.

What is the difference between geographic information system and general information system?

Differences: Geographic information system is a software system composed of computer hardware, software and different methods. Geographic information system is used to support the collection, management, processing, analysis, modeling and display of spatial data in order to solve complex planning and management problems.

GIS is a computer system. Since it is a system, it must have the basic functions of the system, data collection, management, analysis and expression, so each GIS system is composed of several modules with certain functions.

Geographic information system and general computer application system have the following similarities and differences: difference: computer application system mainTo pay attention to the query retrieval and statistical analysis of information, most of the results processed are table data in some prescribed format.

The biggest difference may be that the geographic information system contains a large amount of spatial geographic information data and the combination of various attribute data, rather than a data processing mode that can be perfectly realized by a simple database connection. It requires more professional software or processing platform to realize data processing. .

This can be understood literally. Information system, of course, refers to a whole system formed by the interaction of information construction. Geographic information system, of course, refers to a confidence system composed of geographical confidence. That is to say, the information system includes geographic information system, and the scope and size of the two is different.

What is the geographic information system?

GIS concept of geographic information system: a computer system specialized in processing geographical data (space, attributes), called "GIS", or "GIS" for short. It has the advantages of graphics, visualization, etc., and benefits people scientifically.

For the purpose of geographical research and geographical decision-making, it is a human-computer interactive spatial decision-making support system.

Geographic Information System (Geo-Information System, GIS) is sometimes called "geological information system" or "resource and environmental information system". It is a specific and very important spatial information system.

What are the main functions of the geographic information system?

1. The functions of geographic information system include: data collection and editing are mainly used to obtain data to ensure the integrity of the data in the GIS database in content and space. The purpose of GIS system data conversion is to ensure the integrity of the content and logical consistency of the data when it is warehoused.

2. Data acquisition and input: Obtain geospatial data, including maps, satellite images, geographical location information, etc., and input them into the GIS system. Data storage and management: Store and manage the collected geospatial data, including the organization, classification, indexing and updating of the data.

3. The function of geographic information system: the basis of public geolocation. It has the ability to collect, manage, analyze and output a variety of geospatial information.The system is driven by analytical models, has strong spatial comprehensive analysis and dynamic prediction capabilities, and can generate high-level geographical information.

4. Data acquisition and processing: GIS obtains geospatial data in a variety of ways, using Global Positioning System (GPS), remote sensing technology, geographical investigation, etc. The collected data can be processed, integrated and cleaned up to ensure the accuracy and consistency of the data.