Spatial Analysis
The spatial analysis category looks at data manipulation techniques in GIS.
Is GIS Use in Crime Analysis Effective at Curbing Crime?
A new study by researchers at Sam Houston State University found that the use of GIS is widespread in analyzing crime ...
Some Common Spatial Analysis with Raster Data
Spatial coincidence, proximity, surface analysis, dispersion, and least-cost path analysis are some common spatial analysis done with raster GIS data.
Create Your Own Mental Maps with MindRider Helmets
A mapping application called MindRider hopes to improve biking experiences by creating mental maps of routes with the help of a special helmet.
A Spatial Analysis of Moscow’s Fuel Stations
Andrey Pirogov, a lecturer at the Lomonosov Moscow State University Business School, describes his project to map out and analyze fuel station locations in Moscow, Russia.
Binning in GIS
Binning in GIS helps group data into categories, making it easier to see patterns and densities on maps.
What is the Difference Between a Heat Map and a Hot Spot Map?
Learn about the difference between Heat Maps and Hot Spot Maps in GIS.
Using Unmanned Aircraft to Help Map Threatened Plant Species
Geography researchers at Central Michigan University have tested out the usability of UAVs in mapping out threatened plant species.
Evaluating Ecosystems from Space
The ESA has launched their Space for Ecosystem project in order to more accurately evaluate the benefits of a natural resource.
Verifying Ancient Roman History with GIS
Tom Whitley, an Assistant Professor of Archaeology at the University of Western Australia (UWA), used GIS to test population estimates and patterns of migration and war to see how the historical aspects known about the Gallic Wars measures up to geophysical evidence.
Remotely Tracking Growth of the Sugarcane Industry in São Paulo, Brazil
The use of remote sensing technologies to track the development of the sugarcane industry is a topic of much attention
ASTER and the Spectral Recipe for Finding Gold
In the last section of this series, we took a look at both the ASTER sensor and the vast library of ...
Overview of Public Health and GIS
This article provides an overview of the use of GIS as in public health. It includes a short history of its development as a tool in the field, explains how GIS is used, different data sources and how the privacy of sensitive health information is maintained. Examples of current research using GIS within the public health field are also provided.
Overview of Fuzzy Logic Site Selection in GIS
Site selection is a type of GIS analysis that is used to determine the best site for something and fuzzy logic is one site selection method. It assigns membership values to locations that range from 0 to 1 and is commonly used to find ideal habitat for plants and animals. This article examines fuzzy logic and explains how and when to use it.
Overview of Weighted Site Selection and Suitability Analysis
Site selection is a type of analysis used in GIS to determine the best place or site for something. Weighted site selection analysis is one type of site selection that allows users to rank raster cells and assign a relative importance value to each layer. This article examines weighted site selection by explaining how it works and when it should be used. It also provides an example of a weighted site selection project for reference.
Overview of Least Cost Path Analysis
This article presents a summary of least cost path analysis, an important tool in GIS. Least cost path analysis is a distance analysis tool within GIS that uses the least cost path (the path between two locations that costs the least to those travelling along it) to determine the most cost-effective route between a source and destination. This article provides an overview of that topic as well as the requirements and steps for creating a least cost path analysis.
Overview of Flow Mapping
Flow maps are a type of map used in cartography to show the movement of objects between different areas on the Earth’s surface.
The Rainforest Magician – Optical Illusions and the Spectra of the Canopy
The findings of a recent paper published in Nature found a sun-sensor geometry arrangement was the cause for historically high readings of green-ness in the rainforest canopy.
Danie Krige and Kriging
This article provides a biography of a Danie Krige, and presents a short overview of geostatistics and kriging.
Satellites Show the Thinning of Alaskan Ice
In general, climate change is a term that refers to the significant transformations in global weather patterns over an extended ...
Tracking Whales with Satellite Imagery
Researchers with the British Antarctic Survey have developed a methodology to use unsupervised classification to remotely identify and count right whale populations using Very High Resolution (VHR) satellite imagery.
Automated Generalization: The Holy Grail for National Mapping and Cadastral Agencies?
This guest article by Nicolas Regnauld, Product Manager at 1Spatial takes a look at automated generalization and how this holy grail has come closer for national mapping and cartographic agencies.
Shadows and Angles: Measuring Object Heights from Satellite Imagery
Because of the wonderful metadata that comes with satellite images, shadows can be employed to estimate the height of the objects which cast them.
Taking the Earth’s Temperatures by Satellite
Just like a physician measures a person’s temperature in order to check his or her health, a new project from ...
Saving Leatherback Turtles through Maps
Finding a balance between the needs of humans with those of the natural environment has always been a challenge. There ...
Visualizing American Migration Without a Map
As a cartographer, the display of spatial information is of great interest to me. I’ve been particularly intrigued by analysts ...
Managing Africa’s Water from Space
Water is a vital component for human life, and one of the major problems facing the continent of Africa is ...