Data Sources Archives - GIS Geography

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What is Geodata? A Guide to Geospatial Data

Geodata is location data stored in a Geographic Information System (GIS). By using geographic data, we better tackle problems that require spatial thinking.

Equal Area Projection Maps Advantages and Examples

The equal area projection retains the relative size of area throughout a map. So that means at any given region, it keeps the true size and area of features.

AVHRR: Advanced Very High Resolution Radiometer

AVHRR (Advanced Very High Resolution Radiometer) spatial resolution is actually very coarse at 1.1 km. But its revisit times are “very high” at just one day.

5 Free Historical Imagery Viewers to Leap Back in the Past

When you want historical imagery, the best web viewers are Google Earth, Esri’s Wayback Living Atlas, USGS LandLook, NASA Worldview and Planet’s Stories.

Mapping the Ocean Floor: Water Bathymetry Data

Have you ever wanted to look deep into the ocean and see its topography? Turns out, you actually can with this list of ocean bathymetry data.

NASA Earth Observatory: Global Environment and Climate Data

Since 1999, NASA Earth Observatory has kept a close eye on the environment and global climate change. If there’s a fire burning in California, you can see it for yourself from space.

OpenStreetMap Data: How to Download Crowd-Sourced OSM Data

OpenStreetMap is like the Wikipedia of maps. As open is its key philosophy, this is also true for OSM data. Here’s how to download OpenStreetMap data.

Planet Labs Imagery: The Entire Earth, Everyday

Planet Labs (or simply Planet) started with one main idea: To capture Earth… Every day. And Planet achieved this by designing an ultra-compact, inexpensive one (CubeSAT) which they could manufacture in bulk.

How to Download USGS Topo Maps for Free

If you’re looking for topographic maps (contours, place names & hydrography) for the United States, the first place to look is the USGS topo maps series.

Why Esri Tapestry Segmentation Provides Insights on Who & Where Your Customers Are

Esri’s tapestry segmentation data provides insights on lifestyle choices made by customers helping you make more informative business decisions.

Remote Sensing

50 Satellites You Need To Know: Earth Satellite List

Today I’m going to show you the largest Earth satellite list ever put together. From oceans to weather, here’s our list of the 50 most iconic satellites.
Software

The Hidden Powers of QGIS 3: 33 Truly Underappreciated Features and Plugins

When QGIS releases a new version, it’s kinda a big deal. Because the unsung heroes of open source GIS software are back! It’s their third big release. QGIS 3!
GIS Career

1000 GIS Applications & Uses – How GIS Is Changing the World

From over 50 industries, here are 1000 GIS applications to open your mind of our amazing planet, its interconnectivity with location intelligence in mind.

Maps & Cartography

Magnetic North vs Geographic (True) North Pole

The Magnetic North Pole is a point in Northern Canada where the northern lines of attraction enter the Earth. Compass needles point to the magnetic north.
Software

27 Differences Between ArcGIS and QGIS – The Most Epic GIS Software Battle in GIS History

It’s a head-to-head GIS software showdown with the star-studded lineup in the GIS industry- ArcGIS vs QGIS. Discover the differences between ArcGIS and QGIS
Software

13 Free GIS Software Options: Map the World in Open Source

There’s a bucket load of free GIS software packages available for you to map the world. Manage, visualize and edit GIS data with open source GIS software.

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