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

OpenStreetMap relies on contributions from thousands of volunteers to contribute and edit GIS data. Screenshot taken 10-Feb-2021.

OpenStreetMap: One of the World’s Largest Collaborative Geospatial Projects

Mark Altaweel

OpenStreetMap is a community project with the goal of mapping the world using a crowdsourcing, collaborative method.

LST map of Connecticut, USA (Landsat 7).

How to Use ArcGIS Pro to Calculate Land Surface Temperature (LST) from Landsat Imagery

Jeff Oppong

This ArcGIS Pro tutorial utilizes spatial data science and remote sensing techniques to calculate land surface temperatures using Landsat imagery.

Picture with half of the earth, two satellites, and the Google Earth Engine text logo.

A Look at Google Earth Engine

Mark Altaweel

In a MapScaping podcast episode, Quisheng Wu discusses Google Earth Engine how it allows users to share and upload their own geospatial analyses.

Construction of the New Suez Canal. Satellite images of before and after: August 6, 2014 and April 5, 2016. Images: Landsat 8.

View From Space: Stuck in the Suez Canal

Caitlin Dempsey

Satellites have captured imagery of the Ever Given which is currently stuck in the Suez Canal.

Figure 11: Landslide susceptibility map of Greater Accra, Ghana

How to Use ArcGIS Pro to Assess Landslide Susceptibility

Jeff Oppong

This tutorial explains how landslide susceptibility can be assessed using ArcGIS Pro.

Screenshot from the GEOACE Item Report Dashboard.

Using ArcGIS Online to Manage Content

Geo Contributor

With the Item Report Dashboard from GEOACE, you can use out-of-the-box tools in ArcGIS Online to manage content within an organization.

Uplift and subsidence associated with a June 2007 earthquake swam on Kilauea Volcano are depicted in this ALOS PALSAR interferogram. Kilauea Volcano, located on the southeast portion of the island of Hawaii, has been erupting continuously since 1993. Credit: Zhong Lu, USGS.

Synthetic-Aperture Radar (SAR), Earth Observation, and Mapping

Mark Altaweel

Synthetic-Aperture Radar (SAR) is becoming more widely available and increasingly part of Earth observation satellites.

GIS Data for California Public Schools

Caitlin Dempsey

California School Campus Database (CSCD) offers a GIS dataset that contains all of the public school locations from K-12 grades for California.  

Python code on a screen.

From GIS Analyst to Software Engineer

Mark Altaweel

In a MapScaping podcast, Dan Mahr talks about how he was able to transition to a software engineer, but still use his GIS skills to benefit his career.

Screenshot of Mars from Esri's Explore Mars! site.

Using GIS to Explore Mars

Mark Altaweel

Esri’s Explore Mars site allows you to explore the surface of Mars and make some basic geospatial measurements.

Graphic showing building height data conceptualized.

Why the ‘One Map Fits All’ Approach Doesn’t Fit All

Geo Contributor

A custom map stack can help leverage maps in new exciting ways.

3D building visualisation using Kepler.gl. Image: GeoAlert.

Mapflow.ai — New Buildings Model and Kepler.gl Implementation

Geo Contributor

GeoAlert provides an overview of some of the features of its new Mapflow application.

Diagram showing the integration of radar data from UAVSAR flights in 2010, 2017, and 2020 over Angeles National Forest.

Monitoring Vegetation Regrowth After Fire With Remote Sensing

Mark Altaweel

Synthetic-aperture radar (SAR) is being used to map post-fire vegetation recovery.

VoxelMaps Vector Lane Model. Photo: VoxelMaps, used with permission.

Building a 4D World

Mark Altaweel

VoxelMaps describes how they are creating a global 4D map that can capture outdoor and indoor spaces at different spatial and temporal scales.

Screenshot from Kate Berg's GeoPortfolio. Taken 15-Feb-2021.

Highlight Your Skills with a GIS Portfolio

Caitlin Dempsey

A GIS portfolio is a way to digitally present GIS projects and maps that you have created.

A zoomed-in view of the Urban–Rural Catchment Areas (URCAs) GIS dataset.

New GIS Dataset on the Interconnection Between Urban Centers and Rural Areas

Geo Contributor

A freely downloadable GIS dataset – the Urban–Rural Catchment Areas (URCAs) – shows the diversity of urban-rural systems worldwide.

QGIS on a laptop. Image: Caitlin Dempsey

Mentoring, Leadership, and Building Skills in the Geospatial Community

Mark Altaweel

Leaders in the geospatial community can help to foster key skills through mentoring and developer a stronger community.

OpenStreetMap relies on contributions from thousands of volunteers to contribute and edit GIS data. Screenshot taken 10-Feb-2021.

The “Bystander Effect” With Crowdsourcing GIS Data

Mark Altaweel

A recent research article found that users are less inclined to contribute to crowdsourced geospatial sites like OpenStreetMap and Waze if they know others are already contributing.

Campaign GPS antenna on Kīlauea's south flank at Pu‘ukapukapu inside Hawai‘i Volcanoes National Park.

The Past, Present, and Future of GNSS

Mark Altaweel

The Global Navigation Satellite System (GNSS) has emerged as the standard navigation system that provides global positioning for devices we use every day.

The Atlas of the Human Planet 2020 has an interface for downloading free GIS data produced by the Global Human Settlement Layer. Screenshot from Atlas of the Human Planet.

Atlas of the Human Planet: Free GIS Data and Tools

Mark Altaweel

The Atlas of the Human Planet 2020 provides GIS Data for research, policy, and action that can be used to document the presence of humanity on Earth.

Quantarctica – Free GIS Data for QGIS

Caitlin Dempsey

Quantarctica is a collection of freely downloadable GIS data for Antartica.

NASA Earth Observatory maps by Joshua Stevens, using data from Sandwell, D. et al. (2014).

Mapping the Ocean Floor by 2030

Mark Altaweel

A MapScaping podcast episode with NOAA's Samuel Greenaway discusses how mapping the seafloor will be a major challenge this decade.

Areas shown in blue on this map are subsiding, with darker blue areas sinking faster than lighter blue ones. The areas shown in dark red are rising the fastest. The map was created by comparing thousands of scenes of synthetic aperture radar (SAR) data collected between 2007 and 2011 and 2014 and 2018.

Mapping Ground Subsidence

Mark Altaweel

Synthetic Aperture Radar (SAR) can map subtle differences in the rates of subsidence.

Diagram showing routing attributes from NextBillion AI.

NextBillion AI Solves HyperLocal Geospatial Infrastructures To Advance Mapping Ecosystems

Geo Contributor

NextBillion AI builds AI-based geospatial infrastructures to strengthen logistics, transportation, and supply chain services throughout the ecosystem.

Laptop with QGIS, a desktop GIS software program

The Geography Behind Being a GIS Professional

Mark Altaweel

In a recent GIS podcast, Sarah Taigel discusses how being a professional geographer can provide key advantages to using GIS analysis.

Connected vehicles. Photo: US Department of Transportation

Augmented Reality and Computer Vision in Navigation

Mark Altaweel

The use and field of AR and computer vision are rapidly changing in how these technologies are being used in navigation.