GIS and Geospatial Technologies

Articles focusing on the application of geographic information systems (GIS), geospatial technologies, remote sensing, LiDAR, and Global Positioning System (GPS). These technologies serve as critical tools for understanding and interacting with our physical environment. GIS allows for the mapping and analysis of spatial data Geospatial technologies refer to the various tools used to measure and analyze Earth’s lands and resources. Remote sensing provides a way to collect data from a distance, often via satellites or high-flying aircraft, and is commonly used for environmental monitoring and military applications.

GIS subcategories :

GIS Career | GIS Data | GIS Industry | GIS Learning | GIS Software | GPS | Remote Sensing | Spatial Analysis

A basic map showing cities with a bar graph icon for each of the cities.

Using GIS to Map Trends in Employment

Maptitude

This tutorials shows users how to analyze ACS data from the US Census Bureau to calculate employment shift-share and location quotient using Maptitude.

A grayscale map with dots to show the locations within the United States that are mapping urban heat.

Mapping Heat in U.S. Cities

Mark Altaweel

NOAA has been coordinating an effort to map urban heat islands in cities across the United States.

Screenshot showing a watershed boundary with lines showing the density of water flow on top of a base map.

How to Map Watersheds Using ArcGIS Pro: A Step-by-Step Guide

Jeff Oppong

This tutorial shows you how to use ArcGIS Pro to delineate watersheds and drainage paths from elevation data.

Growth of GIS job listings with the term open source.

Five Reasons to Start Using QGIS

Caitlin Dempsey

Here are five compelling reasons to start using the open-source GIS platform QGIS, a free and open source software.

A globe of the world with quotation marks.

GIS and Cartography Quotes

Caitlin Dempsey

Looking for a memorable GIS quote? Check out this growing collection of interesting and notable quotes relating to GIS, cartography, maps, and geography.

Marina del Rey area on a county map of the state of California.

A Guide to Understanding Map Scale in Cartography

Caitlin Dempsey

Map scale refers to the ratio between the distance on a map and the corresponding distance on the Earth's surface.

A series of three images: top is a gray shaded relief, middle is a black and white contour image, and the bottom is a digital elevation model in shades of red with darker red indicating higher elevation.

Overview of Elevation Data

Jeff Oppong

This article reviews some of terminology and types of elevation based datasets available to GIS.

Pom-pom anemone on the Pacific Ocean floor off California.

Highly Detailed Seafloor Maps

Mark Altaweel

Researchers from MBARI have developed methods to map the ocean floor at incredibly high resolution.

Side by side maps showing land cover and a suitability map showing areas where cocoa can be planted.

How to Use the Suitability Modeler in ArcGIS Pro

Jeff Oppong

Learn how to use the suitability modeler in ArcGIS Pro to map out suitable areas given a set of criteria.

A light aqua blue background gradient with the words "GIS and map competitions" with stars that have different kinds of maps embedded in them.

GIS and Map Contests

Caitlin Dempsey

Current map and GIS related competitions listed in order of the competition deadline.

Forecasting Wildfire Behavior: Earth Observation and GIS

Mark Altaweel

Advances in GIS, remote sensing, and machine learning are leveraging land and weather data to improve fire prediction models.

R Packages for Spatial Analysis

Caitlin Dempsey

Looking for R spatial packages? Listed here is a brief look some of the spatial packages in R that are available.

Grayscale map of the world with a question mark inside of a magnifying glass.

Where Should You Ask Your GIS Questions?

Caitlin Dempsey

Here are some excellent resources for you to get peer assistance for your GIS related questions.

A screenshot of a map showing the results of a location allocation analysis in ArcGIS Pro.

How to Perform Location Allocation Analysis in ArcGIS Pro

Jeff Oppong

This ArcGIS Pro tutorial uses hospital and fire station GIS data to analyze services areas and location allocation.

An image that says "GIS certification" in black letters with a trophy that is tipped over with gold stars spilling out the top with a light blue background.

Certification in GIS

Caitlin Dempsey

GIS certification is a professional credential that validates an individual's proficiency in using and understanding geographic information systems.

A screenshot of a map showing the results of a location allocation analysis in ArcGIS Pro.

Basic Uses of GIS

Caitlin Dempsey

What are the basic uses of GIS? This article reviews some of the most common and basic users of GIS including mapping data, proximity analysis, buffers, cluster mapping, and querying a geographic area for features.

Side by side satellite images, one before a tornado, and one after a tornado.

Mapping Tornado Tracks with Satellite Data

Mark Altaweel

Researchers used satellite imagery and remote sensing to map tornado tracks.

Map within ArcGIS Pro showing the results of a calculation of which populations are at risk of air pollution in Florida.

How to Use ArcGIS Pro to Determine the Population Impacted by Air Pollution

Jeff Oppong

Learn to estimate air pollution's impact on people with geospatial methods using ArcGIS Pro and data from Toxic Release Inventory, Worldpop, and ArcGIS Hub.

Free Ways to Learn QGIS

Caitlin Dempsey

If you want to start learning how to use QGIS, a free and open source GIS software package, there are some excellent free resources out there. 

Laptop with QGIS, a desktop GIS software program

Networking in GIS: Peer-to-Peer Support in the GIS Community

Caitlin Dempsey

List of peer-to-peer resources that GIS professionals can tap into for assistance with their technical queries and to connect with others in the field.

Laptop with QGIS, a desktop GIS software program

Learn GIS for Free

Caitlin Dempsey

There are a few online options to learn GIS for free. Take advantage of resources that provide you access to free courses from some of the world's best universities and institutions.

QGIS on a laptop. Image: Caitlin Dempsey

How to Learn GIS

Caitlin Dempsey

There are many ways to learn GIS. Listed here are guides to learn GIS in a classroom, online, or through self-guided methods.

Finding the Right GIS Program

Caitlin Dempsey

Choosing the right GIS educational program to set you on the right path towards a GIS career, so be sure to consider all your options before making a decision.

Laptop with QGIS, a desktop GIS software program

How to Find Internships in GIS

Caitlin Dempsey

Tips for finding a GIS internship: check job boards and internship websites, reach out to local employers, attend career fairs and events, and network.

Half of the Earth shown in a map.

A Guide to Understanding Map Projections

Caitlin Dempsey

Map projections are techniques used to transform the Earth's three-dimensional surface onto a two-dimensional plane, inevitably introducing some distortion in area, shape, distance, direction, or scale.

Screenshot showing the mapping of the real-time location of the International Space Station.

Real-time Satellite Tracking

Caitlin Dempsey

N2YO.com is an online service that offers satellite tracking and information in real-time.