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Mapping Heatwaves from Space: How Extreme Temperatures Are Modeled

The Goddard Earth Observing System (GEOS) model can help researchers predict and map heatwaves around the world.

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physical geography

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An annotated satellite image of a white icy area.

Understanding Fast Ice in Polar Ecosystems and Climate Dynamics

Fast ice, found in both polar regions, is sea ice that attaches to coasts, icebergs, ice shelves, or the ocean floor.

Colorful tropical fish swim underwater around a reef.

Mapping Coral Reef Health with Sound

Scientists use AI and passive acoustic monitoring to map coral reef health by analyzing ocean sounds.

View of the Manu'a Islands with the volcanic islands of Ofu and Olosega (background), and Ta'u (foreground). Image, NPS, public domain

A Guide to the Geography of U.S. National Parks

Find out the answers to geography trivia questions and more in this article about the geography of U.S. National Parks.

A rocky outcrop of a mountain completely surrounded by glaciers.

Nunataks: Glacial Islands

Nunataks are isolated mountain peaks emerging above ice sheets in polar and high-altitude regions.

A colored map showing major and minor tectonic plates on Earth.

Understanding the Earth’s Structure: A Guide to Tectonic Plates

The Earth’s lithosphere is divided into tectonic plates, which are in constant motion. Learn where to find GIS data on tectonic plates.

Human Geography

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Photo of the Espada Acequia in San Antonio, Texas.

Acequias in the Southwest U.S.

In New Mexico and other Southwestern states, acequias are channels that are dug to divert water from snow runoff and rivers in order to irrigate fields.

A small brown bird holding a small caterpillar.

How Inequality Affects Urban Wildlife

More access to green space and mature trees in wealthier neighborhoods in the United States has also led to a greater diversity of wildlife in those areas.