Applications of GIS
A Geographic Information System is a computer system for storing, capturing, analyzing, querying, and displaying data which has been geographically referenced. The data which has been geographically referenced describes both the characteristics and locations of spatial features. It is also referred to as geospatial data. The history of GIS is about 4 decades.
Websites such as map blast, mapquest, provides fast and simple maps. On these maps, the users can type in points of interest and location address to obtain the desired result, for example, data about nearby churches and schools.
The following are the applications of GIS
During dry periods, wetlands retain water and contribute to a healthy environment, thus keeping the water table relatively stable and high. They act to reduce flood levels during the flooding and to trap attached nutrients and suspended solids. GIS mapping software provide alternatives for wetland mapping and quickly design projects for conservation of wetland with the assistance of GIS. A combination of Remote Sensing data aids the completion of wetland mapping on different scale. Through the use of GIS map spices, information can be used to create a wetland digital data bank.
Management of Natural Resources
Through the help of GIS software applications, the water, agricultural, and forest resources can be well managed and maintained. Forest condition can be easily monitored by foresters. Agricultural land includes monitoring crop rotation, managing crop yield, etc. Water is one of the most vital constituents of the environment. The geographical distribution of water resources can be analyzed with the use of GIS. They are related to each other, i.e. tree canopy stores about 215,000 tons of carbon, and forest cover lowers the storm water runoff. GIS is also applied in aforestation.
This provides resourceful information about a particular area. It helps in understanding the suitability of soil for different land use activities. It is vital for the prevention of environmental deterioration related with the wrong use of land. GIS aids in identifying types of soil in an area and to clearly describe soil boundaries. It is used for the classification and identification of soil. Soil mapping is widely used by farmers in advanced countries to earn maximum yield and retain soil nutrients.
The other uses include, transport applications, emergency, crime analysis records management, planning, land market analysis.
The combination of GIS software with wireless technology, global positioning system (GPS), and the internet has led to the introduction of new and amazing applications. In-vehicle navigation system, vehicle drivers can locate the shortest possible routes.
The rise in demand for spatial data technology can only be satisfied with the use of computers. GIS is a representation of the simplified perception of the earth.
A GIS, unlike the traditional paper maps, can offer detailed information of features such as streams, buildings, roads, etc. In addition, the computers can quickly analyze and search the features of a map and their attributes. These advantages cannot be gotten from traditional maps.
All the data objects are represented by lines, points, and areas. Each of the spatial data has the intrinsic coordinate value.