In other words, data that is in some way referenced to locations on the earth. Coupled with this data is usually tabular data known as attribute data. Attribute data can be generally defined as additional information about each of the spatial features.
An example of this would be schools. The actual location of the schools is the spatial data. Additional data such as the school name, level of education taught, student capacity would make up the attribute data. It is the partnership of these two data types that enables GIS to be such an effective problem solving tool through spatial analysis. GIS is more than just software. GIS can be used as tool in both problem solving and decision making processes, as well as for visualization of data in a spatial environment.
Mapping where things are. We can map the spatial location of real-world features and visualize the spatial relationships among them.
Example: below we see a map of frac sand mine locations and sandstone areas in Wisconsin. We can see visual patterns in the data by determining that frac sand mining activity occurs in a region with a specific type of geology. Mapping quantities. People map quantities, such as where the most and least are, to find places that meet their criteria or to see the relationships between places. Example: below is a map of cemetery locations in Wisconsin. The map shows the cemetery locations as dots dot density and each county is color coded to show where the most and least are lighter blue means fewer cemeteries.
Mapping densities. Sometimes it is more important to map concentrations, or a quantity normalized by area or total number. Example: Below we have mapped the population density of Manhattan total population counts normalized by the area in sq.
Finding what is inside. We can determine the characteristics of "inside" by creating specific criteria to define an area of interest AOI.
Example: below is a map showing a flood event and the tax parcels and buildings in the floodway. We can use tools like CLIP to determine which parcels fall inside the flood event. This skips the traditional process of drawing a map, which can be time-consuming and expensive.
People working in many different fields use GIS technology. GIS technology can be used for scientific investigations, resource management , and development planning. Many retail businesses use GIS to help them determine where to locate a new store. Marketing companies use GIS to decide to whom to market stores and restaurants, and where that marketing should be.
Scientists use GIS to compare population statistics to resources such as drinking water. Biologists use GIS to track animal- migration patterns. City, state, or federal officials use GIS to help plan their response in the case of a natural disaster such as an earthquake or hurricane. GIS maps can show these officials what neighborhoods are most in danger, where to locate emergency shelters, and what routes people should take to reach safety.
Engineers use GIS technology to support the design, implementation, and management of communication networks for the phones we use, as well as the infrastructure necessary for internet connectivity. Other engineers may use GIS to develop road networks and transportation infrastructure. Illustration courtesy U. Government Accountability Office. Staff from the US Geological Survey USGS answer questions about aerial photographs, maps, satellite imagery, computer programs, data formats, data standards, and digital cartographic data.
Hurricanes are the same thing as typhoons, but usually located in the Atlantic Ocean region. In GIS, a closed shape on a map defined by a connected sequence of x, y coordinate pairs. Also called an electrical grid. Also called a transmission line. Also called natural resource management. Storm drains flow into local creeks, rivers, or seas. The audio, illustrations, photos, and videos are credited beneath the media asset, except for promotional images, which generally link to another page that contains the media credit.
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Search through these resources to discover more about unique landforms and landscapes around the world. Landforms are natural and distinctive features. Explore how they show up in various landscapes. These resources can be used to teach middle schoolers more about the natural world, its distinctive features, and landscapes.
They help us understand Earth and how its physical processes and features can shape human activity and vice versa. When data is organized by its locations, we can see geographic patterns that allow us to develop a better understanding of how systems work and interact with one another. Use this collection to provide learners with a deeper understanding of the nature and importance of maps, which have been illustrating places and people for thousands of years.
One of the oldest tenets of geography is the concept of place. Location is the position of a particular point on the surface of the Earth. Locale is the physical setting for relationships between people, such as the South of France or the Smoky Mountains. Finally, a sense of place is the emotions someone attaches to an area based on their experiences.
Place can be applied at any scale and does not necessarily have to be fixed in either time or space. Additionally, due to globalization, place can change over time as its physical setting and cultures are influenced by new ideas or technologies.
Learn more about the physical and human characteristics of place with this curated resource collection. Demography is the study of demographics, the social characteristics and statistics of a human population. This study of the size, age structures, and economics of different populations can be used for a variety of purposes. GIS delivers real-time situational awareness. This hurricane and cyclone map shows potential impact to people and businesses, probable track of storms, and storm surge.
Use GIS to forecast traffic. This map highlights challenges at an intersection in Fort Mitchell, Kentucky, where forecasting shows traffic is expected to worsen based on land use changes. GIS helps to set priorities based on spatial analysis. By analyzing crime patterns, public safety officials can identify target areas and assign officers in those areas.
GIS helps you gain insight into data that might be missed in a spreadsheet. This map measures job growth or losses in different industries and quantifies local competitive advantage. GIS technology applies geographic science with tools for understanding and collaboration.
It helps people reach a common goal: to gain actionable intelligence from all types of data. Modern GIS is about participation, sharing, and collaboration. Discover how the technology is strengthening relationships, driving efficiencies, and opening communications channels in your community. Discover the power of geography in this series of video shorts by National Geographic and Esri, featuring National Geographic Explorers who are using GIS to map a better future.
What is GIS? A spatial system that creates, manages, analyzes, and maps all types of data. How is GIS used? Identify problems Use GIS to illuminate issues that are driven by geography.
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