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Understanding Geographic Information Systems (GIS)

Pengertian Sistem Informasi Geografis (SIG)

In this current era, as we all know, technology is increasingly developing, changing and of course becoming more sophisticated, even now technological sophistication has penetrated into various fields.

Of course, the presence of this technology will make it easier for humans to carry out all their activities and needs. Therefore, on this occasion I will present information to all of you regarding Geographic Data Systems (GIS) in information technology.

Of course, this topic is interesting to discuss because most of us may not understand GIS, even though this is a technology that is often used in everyday life. The following is an explanation of Geographic Information Systems (GIS).

Understanding Geographic Information Systems (GIS)

Geographic Information System (GIS) or often called Geography Information System (GIS) is an information technology system that can be accessed using electronic devices such as cellphones and computers. This GIS functions to process, analyze and present geographic data. GIS provides a very sophisticated visual style for presenting information visually or in the form of images to users, making it easier both in understanding and as a follow-up to a decision. The presence of this technology can also enable users to analyze geographic data for an area interactively, add new data and create new maps.

From the explanation above, it can be concluded that GIS is a technology that is able to present geographical visuals to its users, they can also manage and analyze existing data visually. Well, small examples of the use of Geographic Information Systems (GIS) in our daily lives can be found, namely: As a forecast map for weather, wind, sea or Digital Maps or often called Google Maps. So, talking about Maps, surely you are familiar with this Maps application, right? Yep, this application is often used to find exact travel routes. With a map design that is so interactive, this map is often also used by online motorcycle taxi drivers, couriers, even those of you who are looking for certain locations or routes. In the maps you will be presented with important information, for example: Area names, roads, entertainment venues, places to eat, places of worship and others. Not only that, the role of digital maps is often used for state interests, such as military interests. These maps are an example of the development of Geographic Information Systems (GIS) which is very important in today's digital world.

Various Technologies (GIS)

The following are several types of technology or components that are often used in (GIS), including:

1. Digital Map

As discussed previously digital maps are visual representations of geographic data that can be accessed electronically. Digital maps can be created using a combination of GIS software, such as ArcGIS or QGIS. Digital maps can display geographic information in a visual form that is easy to understand, such as locations, area boundaries, roads, or building locations. Apart from that, you can also find many other benefits from this digital map. With this map, users can add and create new data on maps. This component is the most important one which has a big influence because it can display data from the results of several supporting components.

2. Remote sensing

Remote sensing is a sensor  usually installed on aircraft, satellites or drones to collect geographic data from the earth's surface. Data generated from remote sensing can be in the form of images or other special data, such as elevation data or vegetation density data. However, the benefits of Remote Sensing that can be felt by everyone are remote sensing on satellites that are transmitted to earth.

This remote sensing can be used to obtain geographic information from areas that are difficult to reach directly, such as wilderness or remote areas. Remote sensing can also obtain geographic data with high resolution, so it can be used to identify small details of the earth's surface.

Remote sensing can also be used in various fields, such as regional planning, land management, transportation, agriculture, forestry, and many more. Data generated from remote sensing can be used to create digital maps or to manage, analyze, and visualize geographic data in Geographic Information Systems (GIS).

3. Geocoding

Geocoding is the process of converting addresses or place names into geographic coordinates that can be displayed on a map. These geographic coordinates are usually expressed in latitude and longitude format, which represent position

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