Caitlin Dempsey
Largest Dome Volcano in the World
Lassen Peak is the world's largest dome volcano with a height of 10,457 feet (3,187 meters).
Third Order Islands
Islands with lakes or ponds that contain smaller islands within them are called recursive islands.
A Harbor in the Center of a Volcano
Deception Island is one of the only places in the world where ships can sail directly into the middle of an active volcano.
Where is the World’s Largest Salt Flat?
Salar de Uyuni in Bolivia, is the largest salt flat in the world and one of the world's largest reservoirs of lithium.
Geography Facts about the World’s Continents
Continents are defined as the largest continuous landmasses on earth.
Five Reasons to Start Using QGIS
Here are five compelling reasons to start using the open-source GIS platform QGIS, a free and open source software.
What are Graduated Symbols in GIS?
Graduated symbols is one way of visualizing data that can be quantified on a map in GIS.
GIS and Cartography Quotes
Looking for a memorable GIS quote? Check out this growing collection of interesting and notable quotes relating to GIS, cartography, maps, and geography.
A Guide to Understanding Map Scale in Cartography
Map scale refers to the ratio between the distance on a map and the corresponding distance on the Earth's surface.
Timing Mismatch is Resulting in Fewer Birds
A study has found that shifts in the timing of spring seasons, linked to climate change, are impacting bird breeding patterns and leading to less offspring.
Interesting Geography Facts About Florida
Show off your knowledge about Florida's geography with these fun and amazing facts.
Wildfires in Canada
Canada's boreal forests are facing a strong start to the 2023 wildfire season in Alberta and British Columbia.
Wildfires in Hawaii
Fueled by high winds and drought, a wildfire has destroyed much of Lahaina on the Hawaiian island of Maui.
Phytoplankton Blooms in the Northeast Pacific Ocean
During summer in the Northeast Pacific Ocean, phytoplankton blooms proliferate due to the nutrient-rich upwelling along the continental shelf.
2023 Wildfires in the Western United States
So far in early August of 2023, the wildfire season in the western United States has not been as intense as prior years when a years-long drought was raging.
World’s Largest Freshwater Wind Farm
The world's largest freshwater wind farm is the 89-turbine installation in Lake Ijssel located south of the Wadden Sea in the Netherlands.
Five Basic Types of Sand Dunes
Sand dunes are mounds, hills, or ridges of sand built by wind. Learn about the five basic types of sand dunes.
GIS and Map Contests
Current map and GIS related competitions listed in order of the competition deadline.
R Packages for Spatial Analysis
Looking for R spatial packages? Listed here is a brief look some of the spatial packages in R that are available.
El Niño Has Arrived
After a triple dip of La Niña conditions spanning three years, researchers have officially declared the onset of El Niño on June 8, 2023.
Where Should You Ask Your GIS Questions?
Here are some excellent resources for you to get peer assistance for your GIS related questions.
Causes of Wildfires in the United States
Every year, thousands of wildfires rage across the United States, consuming millions of acres.
Wildfire Smoke From Canada is Affecting Parts of the United States
Smoke from the June 2023 Canadian wildfires is affecting the Midwest and northern regions of the United States.
Chaparral in California
Chaparral ecosystems in California are characterized by dense shrubs and rocky terrains and span from maritime zones to mountain slopes.
Blue Carbon Explained
Blue carbon is the carbon captured and stored by the world's oceanic and coastal ecosystems.
Certification in GIS
GIS certification is a professional credential that validates an individual's proficiency in using and understanding geographic information systems.