Articles

A black and white dot map of all the centers of ZIP codes in the continental United States.

ZIP Codes in the United States

Caitlin Dempsey

It’s likely that if you routinely send mail to a location within the United States, you know how critical it ...

Screenshot showing how to import an Esri layer package into QGIS from Finder.

How to Import an Esri Layer Package in QGIS

Caitlin Dempsey

While QGIS cannot directly read an Esri layer package, there is a simple technique to unpack the file and import it into this GIS software.

A satellite image of the state of Iowa against a black background with the state flag and USGS and NASA logos in the upper right and left corners.

Geography of Iowa

Marques Hayes

Iowa is a state with many distinct geographies.

Strong winds blew across North and West Africa, picking up massive amounts of dust from the Sahara Desert and transporting it across the Atlantic Ocean as seen in this series of satellite imagery from NASA. captured March 26, March 27, March 28, and March 29, 2018. Image: NASA.

Geography of Saharan Dust: Where and How Does it Travel?

Julian Marks

The Saharan Desert produces vast amounts of atmospheric dust, which is carried and deposited thousands of kilometers away by strong winds traveling over great distances.

Two maps showing chloride water sample levels.

Kriging in Geography

Mark Altaweel

Spatial kriging is a commonly used interpolation technique for estimating raster values.

An artistic rendering of a weather satellite in space.

GOES-T: Next Generation Weather and Space Monitoring

Mark Altaweel

The launch of the GOES-T (GOES-18) satellite provides coverage for the United States' West Coast, Hawaii, and Alaska.

California poppy (Eschscholzia californica). Photo: Caitlin Dempsey.

Endemic, Native, Non-native, and Invasive Species

Caitlin Dempsey

Learn what the terms endemic, native, non-native, or invasive mean for animals and plants.

Low lying clouds over a forest.

Study: Afforestation Can Lead to More Cloud Cover

Caitlin Dempsey

Increased forest cover can lead to more low lying clouds which helps to cool the Earth.

A colored woodcut map from 1550 of the Western Hemisphere.

First Maps

Caitlin Dempsey

These maps are the earliest known representations of a particular geography, name, or geographical phenomenon.

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 choropleth map showing states in light orange that are single landlocked, medium orange that are double landlocked, and dark orange that are triple landlocked.

Which U.S. States are Landlocked?

Caitlin Dempsey

There are 27 states in the United States that are single, double, or triple landlocked.

False color satellite image of Anchorage, Alaska .

Landsat 9 Data Released

Mark Altaweel

Landsat 9 satellite imagery and data has been made publicly available.

Providing a Voice Interface for Geospatial Data

Eric van Rees

Qwhery CEO Matt Pietryszyn discusses his smart speaker application Q11, that uses voice assistant technology to answer geospatial data queries.

A Photochrom print of an isle in the Atlantic Ocean taken in 1905.

Curling Stones Come from Two Quarries in the World

Caitlin Dempsey

Almost all of the granite harvested to create curling stones comes from a small isle off the coast of mainland Scotland.

Map of the world showing methane emissions from fossil fuels.

Detecting Methane With Satellites

Mark Altaweel

Satellite technology plays an important role in pinpointing sources of methane emissions, a vital step in mitigating this greenhouse gas.

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.

Satellite image of a half frozen lake in the shape of a heart.

Hearts on Earth

Caitlin Dempsey

Geographers have a spatial way to celebrate Valentine's Day with these natural heart-shaped land features.

A view across a forest with dead trees from a prolonged drought in California.

How a Changing Climate is Affecting Forests in the Western United States

Katarina Samurović

Drought, more intense fires, and invasive species are changing the forest landscapes in Western United States.

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 simply diagram showing the location of three populations with red dots. The background is light gray with a blue line for river and green shaded areas for parks.

Distance Decay in Geography

Caitlin Dempsey

Distance decay between two groups of people gives rise to things like languages and regional customs, and distance decay across biomes contributes to the earth's natural diversity.

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

Test Your Knowledge of World Geography with these Online Games

Caitlin Dempsey

Geoguesser is an online game that uses images from Google Street View to display a small section of the world.

A view from the International Space Station showing frozen glacial lakes in the Tibetan Plateau.

Largest Plateau in the World

Caitlin Dempsey

The Qinghai–Tibet Plateau is the world's largest plateau.

A view of the Arctic Ocean and sky. Sea ice is floating on top of the ocean.

Arctic Circle

Caitlin Dempsey

The Arctic Circle is a circle of latitude encompassing the northernmost pole of the Earth and is located at approximately 66°33′45.6″ north of the Equator.

A lightning bolt branches across the night sky during a storm. A darkened tree is in the lower right corner of the photo.

Remote Sensing of Lightning

Mark Altaweel

Satellites and remote sensing tools are providing a way to better forecast and determine the severity of lightning.

How Big Was the Tonga Volcanic Eruption?

Caitlin Dempsey

Tonga was rocked by an undersea volcano eruption on January 15, 2022, which sent shockwaves throughout the planet.

Cloud streets over the Great Lakes, February 110, 2016. NASA image by Jeff Schmaltz, LANCE/EOSDIS Rapid Response.

Cloud Streets

Caitlin Dempsey

Cloud streets are cumulus clouds that form in long bands along cylinders of rotating air and are roughly parallel to the ground.

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