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Understanding the Increase in PyroCbs: Wildfire Thunderstorms

The phenomenon of fire-triggered thunderstorms is called pyroCbs, which is short for pyrocumulonimbus clouds.

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physical geography

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Side by side photos of a great egret (left) and American white pelican (right).

Birds in Flight: Great Egret Versus American White Pelican

Learn how to tell the difference between a great egret and an American white pelican in flight by examining their size, beaks, wings, and flight patterns.

A chestnut-backed chickadee on a redwood branch.

Number of “Dees” in a Chickadee’s Alarm Call is Related to the Danger Level of Nearby Predators

The number of “dees” in a chickadee’s alarm call correlates with the size and threat level of the predator.

A black and white dragonfly resting on a blade of grass.

Tracking Mercury With Dragonflies

Research on mercury levels in dragonfly larvae from 73 U.S. national parks reveals insights into mercury deposition patterns.

Gravity wave clouds over a forest on a bright sunny day.

How Undular Bores Show Up in the Clouds

Undular bores create distinctive wave-like cloud patterns, such as morning glory clouds, by pushing warm air upward.

A giant sequoia tree at Yosemite National Park's Mariposa Grove of Big Trees.

Geography of Giant Sequoias

Giant sequoias are one of the longest lived tree species, with the oldest giant sequoia living an estimated 3,400 years.

Human Geography

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The Diomedes Islands mark the closest point between Russia and the United States.

These Two Countries are Separated by 2.4 Miles and 21 Hours

There exists a geographic point where two of the largest countries in the world are only separated by a 2.4 miles but are 21 hours apart.

A small child riding a kids red play scooter on a sidewalk.

Using GIS to Design Child-Friendly Cities

Using GIS, cities can design child-friendly pedestrian pathways that prioritize children’s interests and safety, promoting urban living and sustainability.