Articles

Landsat 8 imagery of Kangaroo Island showing damage from wildfires. Acquirered January 9, 2020.

Satellite Imagery Shows Fire Damage to Australia’s Kangaroo Island

Caitlin Dempsey

Like parts of mainland Australia, Kangaroo Island has been devastated by bushfires fueled by drought and intense temperatures.

Map showing the location of Iran in the Middle East. Map from Equal Earth, public domain.

Physical Geography Facts About Iran

Caitlin Dempsey

Iran, known officially as the Islamic Republic of Iran, is a country located in the Middle East.  

Predicting a pedestrian's future path and activity: The green and yellow line show two possible future trajectories and two possible activities are shown in the green and yellow boxes. Depending on the future activity, the person (top right) may take different paths, e.g. the yellow path for “loading” and the green path for “object transfer”. Source: Liang et al., 2019.

Predicting Future Movements of Pedestrians and Autonomous Vehicles

Mark Altaweel

As driverless cars and motion detection technologies are increasingly integrated into our everyday lives, applications are now being developed to help with predicting movements undertaken by both pedestrians and vehicles.

Hoodoos at Bryce Canyon National Park. Photo: Bryce Canyon NPS, Public domain.

The World’s Highest Concentration of Hoodoos

Caitlin Dempsey

Hoodoos are tall, thin rock spires that occur all around the world.

Tallest mountain on each continent. Graph adapted from Cmglee, Wikimedia, CC BY-SA 3.0

Seven Summits: The Tallest Mountain on Each Continent

Caitlin Dempsey

Listed here are the tallest mountains based on summit elevation for each of the seven continents.

What is Snapping in GIS?

Caitlin Dempsey

Snapping involves connecting a geometric vertex or edges of one feature to another when editing a GIS dataset.

The Reference Elevation Model of Antarctica (REMA).

The Highest Continent

Caitlin Dempsey

"The land of snow and ice" is the highest continent on Earth.

Three moments in a tumultuous year for farming north of St. Louis, MO, as seen in NASA-USGS Landsat 8 data. On the left is May 7, 2019, as heavy rains delayed planting for many farms. Sept 12, 2019, in the middle, shows bright green signifying growing vegetation, although with a fair amount of brown, bare fields. On the right, Oct. 14, 2019, the light brown indicates harvested fields while darker brown are fields that have not been seeded or fallow all summer. Credits: NASA

Monitoring Crop Production Via Satellite

Elizabeth Borneman

To cope with ever-changing agricultural needs and conditions, the USDA’s National Agricultural Statistics Service (or NASS) uses data from Landsat to monitor crops in the contiguous United States.

Null Island: Where Geocoding Errors Go to Live

Caitlin Dempsey

Null Island, a fictional location at the confluence of the Equator and the Prime Meridian, is used for troubleshooting purposes as a way to flag geocoding failures.

A long-term habitat connectivity experiment. Source: Damschen et al., 2019.

Connecting Fragmented Habitat Improves Biodiversity

Elizabeth Borneman

Researchers found that connecting natural corridors of habitat to one another promotes biodiversity in the plants and animals that are able to thrive in those locations.

Examples of city climate adaptation action themes. The size of the circle is proportional to the number of actions listed in the 80 city plans analysed, for each of the ten categories, from largest to smallest: physical infrastructure (73 actions); management and planning (62); green infrastructure (57); practice and behaviour (55); technology (52); policy (49); information (45); capacity building (40); warning or observing (22); financing (20). Source: Butt et al., 2018.

Biodiversity and Climate Change Adaptation

Mark Altaweel

Many cities globally are forging ahead with climate change adaptation.

Dumbo octopus. Source: NOAA.

Life at the Entrance to the Arctic Ocean

Caitlin Dempsey

Researchers traveled to the Chukchi Borderlands to learn more about deep ocean life at the entrance to the Arctic Ocean.

A view of Greenland

The Greenland Ice Sheet Has Lost 3.8 Trillion Tons of Ice

Caitlin Dempsey

A new report analyzed 26 satellite datasets to track ice loss for the Greenland Ice Sheet.

Automated Remote Sensing of Underground Features

Mark Altaweel

Below ground mapping can now better utilize remotely sensed data to create more accurate maps.

Open Repository for Geospatial Training Data Released

Caitlin Dempsey

Radiant Earth has launched Radiant MLHub, a cloud-based open library for training geospatial data used by machine learning algorithms.

High tide flooding in Port Orchard, Washington, on Jan. 6, 2010. (Ray Garrido, courtesy of Washington Department of Ecology)

Sunny Day Flooding is Increasing

Elizabeth Borneman

Research has shown that the instances of tidal flooding have increased on the Atlantic, Pacific, and Gulf coasts of the United States.

Review | The Citizen’s Guide to Climate Success

G.T. Dempsey

This is a most useful primer on climate change and its consequences.

Satellite Data Shows That Tilling Less Leads to Healthier Soils

Caitlin Dempsey

Researchers applied machine learning to satellite-derived datasets to to analyze tillage practices and crop yields in the US Corn Belt between 2005 and 2017. 

There are Four Trillion Measurements in this Global Sea Surface Temperature Dataset

Caitlin Dempsey

Researchers have compiled an enormous global dataset with over four trillion satellite-based measurements of sea surface temperature.

Do Bison Influence the Spring Season?

Caitlin Dempsey

Researchers took a look at the foraging behavior of Yellowstone’s bison (Bison bison) to see how well their grazing behavior fits with the Green Wave Hypothesis.

MERIT Hydro: A High-Resolution Global Hydrography GIS Dataset

Caitlin Dempsey

Researchers have developed a high-resolution GIS dataset of river systems using remotely sensed data and OpenStreetMap data.

EarthPy: Python Package for Plotting and Working with Spatial Data

Mark Altaweel

A Python language spatial package, called EarthPy, has been released for free download for working with GIS data.

How Wildfires are Changing Boreal Forests and Increasing Emissions

Katarina Samurović

Boreal forests are changing along with our climate.

Mapping Plant Stress With Remote Sensing

Elizabeth Borneman

NASA researchers are able to map out plant stress using a remote sensing from ECOsystems Spaceborne Thermal Radiometer Experiment on Space Station, or ECOSTRESS.

Lowest Natural Point in Japan

Caitlin Dempsey

At 4 m (13 ft), Lake Hachirō  in Akita Prefecture in northern Japan is the lowest natural point in Japan.

A map showing with icons the locations of GIS companies.

Map of Geospatial Companies Around the World

Caitlin Dempsey

Christoph Rieke has assembled a growing list of commercial geospatial companies with offices located all around the world.