Geo Contributor

Screenshot from the city-regions explorer online mapping application.

Explore the City-Regions Dataset from FAO

Geo Contributor

FAO’s global dataset maps access to towns and cities of all sizes within reasonable travel times, identifying patterns of urban interconnectedness.

An aerial image with white dots showing the location of planted trees.

Mapping Trees During Planting

Geo Contributor

STA Logger, developed by TerraLab, can be fitted with tree planters to map the location of newly planted trees.

Examples of topological errors in GIS that can occur during data creation/digitization. Image: Caitlin Dempsey

GIS Data: A Look at Accuracy, Precision, and Types of Errors

Geo Contributor

What are the types of error found in GIS data? This article reviews the difference between accuracy and precision and explains the most common types of error found in GIS data.

Screenshot from a GIS software program showing an aerial image with geospatial data overlays for Missouri.

Finding GIS Data and Using QGIS to Map Caves

Geo Contributor

Dackery Geiman outlines the challenges he encountered finding geospatial data about caves and using QGIS to map cave density in Missouri.

Elevation map with shades of green.

GIS in Land Use Planning and Surveying

Geo Contributor

Michael Parks explains how he used GIS data and imagery to develop geospatial analysis and maps to recommend potential base camp sites.

A detailed map showing a shaded relief area and a popup with attribute data about a fly fishing shop.

Using GIS to Map Fly Fishing Destinations

Geo Contributor

William Bakemeyer describes how he used QGIS and open source data to create a fly fishing map.

Two images - one from 2013 and one from 2021 showing changes in orange in the coastline of an area.

QGIS from a Graduate Student’s Perspective

Geo Contributor

Kent Campbell writes about how he has come to view the benefits of using QGIS as a graduate student.

A screenshot showing a transparent green polygon on top of a purple polygon with a dark grey 3D geographic background.

Crowdsourcing Archaeological Data with Participatory GIS

Geo Contributor

People with little or no training in archaeology or geographic computing systems can build GIS data using Humap's Placemaker.

Six topographic surfaces compared.

FABDEM: 30 Meter Resolution Bare Earth DEM from Fathom

Geo Contributor

FABDEM is the first global Digital Elevation Model (DEM) with forests and buildings removed at a 30m resolution.

Screenshot from a video with a man looking at the screen and the text "How do I get these GIS jobs" written in blue against a yellow background.

The State of GIS Jobs in 2022

Geo Contributor

Andres Abeyta, Director of Bootcamp GIS reports about the state of GIS jobs as he looks at what skills and experiences job seekers need.

Screenshot of a map visualizing hurricane wind speeds.

Fluid Earth: Open-source Visualization of Weather and Climate Data

Geo Contributor

Fluid Earth is a web visualization tool developed by The Ohio State University's Byrd Polar and Climate Research Center (BPCRC) that enables users to view weather and climate patterns.

A map of underwater ocean sounds created by commercial ships in the North Atlantic. The darker orange areas are higher levels of noise.

Mapping the Sounds of the Ocean

Geo Contributor

Using hydrophones, scientists convert sound waves to electrical signals to create images of underwater ocean environments.

An aerial image of a port showing rows and rows of shipping containers. An edge of the ocean is the the left of the containers.

The Many Uses of Aerial Imagery

Geo Contributor

Nearmap's Tony Agresta outlines the many applications of aerial imagery, including assessing damage after a disaster, reducing crime, valuing properties, and more.

A screenshot from the Google Earth web map interface that shows a heart-shaped lake from a satellite image.

The Role of UX and UI in GIS

Geo Contributor

Jeff Siarto of Element 84 talks with the MapScaping Podcast about the evolving role of design in the geospatial industry.

A picture of an arm holding a smartphone against the background of a hilly landscape with a picture of that landscape on the phone.

A Look at 3 Trends Shaping Remote Sensing in the Next 5 Years

Geo Contributor

Ian Berdie of NV5 Geospatial, discusses three trends that will reshape use of remote sensing over the next five years.

Screenshot showing the mask and crop option in the QGIS plugin Mapflow.

AI-assisted Mapping of Crop Fields Using Free Sentinel Imagery

Geo Contributor

Mapflow offers an AI-driven process to map crop fields in QGIS.

A collage of satellite imagery showing a river in Peru, global land surface temperatures, a cyclone over the Pacific Ocean, and vegetation across Africa.

How to Create a Time-lapse of Satellite Imagery With Google Earth Engine and Streamlit

Geo Contributor

Qiusheng Wu explains how to make a 60-second satellite timelapse of any location on the globe.

Screenshot showing the mapped locations of US airport on top of Google Maps.

A Guide to Building Interactive Google Maps with R Shiny

Geo Contributor

Dario Radečić demonstrates how to build interactive Google Maps with R, and how to include them in R Shiny dashboards.

A firefly map showing world population by cities using QGIS.

How to Create Firefly Cartography with QGIS

Geo Contributor

Firefly cartography is a cartographic style used to create maps that glow. Learn how to make a firefly map using QGIS.

Banner Mentoring concept with English keywords.

Mentoring in the Geospatial Industry

Geo Contributor

Opeyemi Kazeem-Jimoh of the Geospatially Africa Podcast spoke to Sharon Omoja, a regional ambassador for Women in Geospatial+  about her personal experience in volunteering and mentoring women in the geospatial industry.

Laptop with QGIS, a desktop GIS software program

Enhance Your GIS Opportunities in Africa

Geo Contributor

Olufemi Damilola from Africa GeoConvo Podcast discusses information about employment options as a GIS enthusiast or student, as well as a curated list of African organizations that employ GIS practitioners.

Hurricane Ida just before landfall on the Louisiana coast on Aug. 29, 2021. NOAA.

How Did Ida Turn Into Such a Strong Hurricane?

Geo Contributor

Oceanographer Nick Shay explains how eddies, part of what’s known as the Loop Current, help storms rapidly intensify into monster hurricanes.

Figure 6: Groundwater Potential Map.

Mapping Groundwater Potential in a Desert using Geospatial Technology

Geo Contributor

Anindita Ghosh discusses her study that used GIS tools and analysis to map out areas with groundwater potential in a desert.

Hurricane Ida just before landfall on the Louisiana coast on Aug. 29, 2021. NOAA.

4 Things to Learn About Hurricane Ida

Geo Contributor

These four resources explain why the New Orleans area is at high risk for severe hurricanes and what role climate change plays in these devastating storms.

Screenshot showing building detection using MapFlow in QGIS.

Run AI-Mapping in QGIS over high-resolution satellite imagery

Geo Contributor

Mapflow is a QGIS plugin that lets users extract real-world objects from satellite imagery.

flowchart that summarizes the whole learning guide to become a Web GIS developer

Open-Source Web-GIS Development Roadmap

Geo Contributor

This article will provide a step-by-step learning guide to support your Web-GIS development journey, based on the authors' years of experience and extensive research.

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