Physical Geography

Physical geography focuses on geography as an Earth science (and is sometimes called Earth System Science).

Physical geography is a branch of geography that focuses on the study of the natural features and processes of the Earth’s surface. It includes the examination of landforms, climate, vegetation, soils, and water resources. Physical geographers use a range of scientific methods and tools to analyze and understand the complex interactions between the Earth’s physical systems.

Learn about the different branches of geography that fall under the physical geography category: climatology, geomorphology, biogeography, and more.

A view of a green covered mountain with misty clouds in the foreground.

What is England’s Highest Mountain?

Caitlin Dempsey

Found at 978 metres (3,209 ft) above sea level, Scafell Pike is located in Lake District National Park in Cumbria.  

A raft of sea otters. Photo: USFWS, public domain

Sea Otters are a Keystone Species

Caitlin Dempsey

Keystone species are plants or animals, like the sea otter, whose presence in an ecosystem plays a crucial role in its health.

A grayscale shaded relief map of the western part of Canada with red areas on top showing glaciers.

Mapping Glacier Loss in Western Canada

Caitlin Dempsey

Researchers are using remotely sensed data and satellite imagery to map glacier loss in Western Canada.

An oblique view of Hawaii showing two snow-capped volcanoes.

Snow in Hawaii

Caitlin Dempsey

Hawaii may be in the tropics, but it gets snow every year.

A shaded relief map centered on Antarctica with different colored circles for the different types of penguin nesting sites.

Geography of Penguins

Caitlin Dempsey

Penguin are agile swimming birds with habitat that ranges from Antarctica to the Galapagos Islands.

A natural shaded relief map of Antarctica showing in a bold line the 60° S extent of the Southern Ocean.

Geography Facts About the Southern Ocean

Caitlin Dempsey

The Southern Ocean is the Earth's windiest, southernmost ocean and plays a vital role in Earth's environmental health.

Double rainbow seen from Lower Mammoth in Yellowstone National Park. Photo: Dan Hottle/NPS, public domain.

Exploring Rainbows and Moonbows

Caitlin Dempsey

Rainbows and moonbows occur when light is refracted through drops of water in the sky.

An AI generated closeup of a red, orange, and yellow fall leaves with a dusting of snow.

What is Snowliage?

Caitlin Dempsey

Snowliage is when an early winter storm creates a bright white snowfall that contrasts with the red, oranges, and yellow fall foliage of trees.

A shaded relief map with labels of the highest point in each state.

Highest Point in Every U.S. State

Caitlin Dempsey

Discover the highest point in each U.S. state.

Graph with lines in 1,000 foot intervals with a mountain graphic and labels corresponding to the heights of the five tallest mountains in the United States.

The Highest 11 Mountains in the United States

Elizabeth Borneman

Learn about the highest 11 mountains in the United States.

A male Mexican wolf stands on a snow covered log.

Reintroduction of the Mexican wolf nears 25th anniversary

Mark Altaweel

Reintroduction efforts to improve Mexican wolf populations in the wild began in 1998 and recent populations now exceed 200 wolves.

Black and white graph showing the change in global temperatures against the average from 1951 to 1980.

When Will We Reach the 1.5°C Mark with Climate Change?

Mark Altaweel

The Earth is 1°C warmer than pre-industrial times, and it's unclear when we'll reach the 1.5°C climate threshold.

A clump of dried and browned leaves in a bright green leaved deciduous tree.

What are Those Clumps in Trees?

Caitlin Dempsey

A dense clump of dried leaves and twigs in a tree is mostly likely a squirrel's nest, known as a drey.

A cropped closeup view of the monarch butterflies.

Monarch Butterfly Overwintering in California

Caitlin Dempsey

November and December are the best times to see large clusters of monarch butterflies overwintering in the coastal groves of California.

A couple of small white boats on a hazy day out in the ocean with the coastline in the background.

Marine Spatial Planning Index

Mark Altaweel

The goal of marine spatial planning (MSP) is to balance ocean space use and environmental protection.

A shaded relief map of the United States with inset maps for Alaska and Hawaii with lowest points in each state marked with a small black dot and highest points in each state marked with a red diamond symbol.

U.S. States With the Most Extreme Elevation Spans

Caitlin Dempsey

Here are the states with the greatest difference in elevation between the highest and lowest points.

A diagram showing the formation of internal waves underneath the surface of the water.

The Role of Internal Waves in Climate Change

Mark Altaweel

Scientists from the UK and US have identified underwater internal waves as crucial in understanding and addressing climate change.

Southern California neighborhood scarred by wildfire. Photo: Jon Keeley, USGS Western Ecological Research Center. Public domain.

Study: More U.S. Homes Burn in Grassland and Shrubland Fires than Forest Wildfires

Caitlin Dempsey

A new study in Science reports that in the United States, grassland and shrubland fires tend to be more extensive and burn more houses than forest fires.

A diagram with shrubs and trees planted together to explain a Miyawaki Forest.

Benefits of Microforests

Katarina Samurović

Microforest projects use the Miyawaki method fast-track the growth of dense, biodiverse forests, aiming to achieve full growth in 20-30 years.

Two maps of the Los Angeles area showing changes in nitrogen dioxide over time.

Mapping Air Pollution in the United States

Mark Altaweel

NEMO and TEMPO are two scientific endeavors aimed at producing hourly air pollution maps of the United States.

What is the Difference Between a Crow and a Raven

Caitlin Dempsey

Here are some ways you can determine the difference between the common raven (Corvus corax) and the American crow (Corvus brachyrhynchos).

Three wolves eating a deer in the snow.

Study: Human Activities Have Changed How Wolves Hunt Deer

Caitlin Dempsey

Logging, linear features, and human infrastructure are changing where wolves hunt for deer.

A flooded street with buildings in the background.

Rising Sea Levels and Human Migration

Mark Altaweel

Researchers predict that by 2100 between 17 to 72 million people will migrate as a result of coastal land loss due to sea level rise.

A satellite image of a section of the ocean showing swirling colors of blues and greens.

Climate Change is Affecting the Color of the Ocean

Caitlin Dempsey

Researchers are using satellite data to analyzing the levels of phytoplankton in the oceans which are being affected by climate change.

A closeup of Klyuchevskoy volcano erupting surrounded by a dusting of snow.

Tallest Active Volcano in Eurasia

Caitlin Dempsey

With an elevation of 15,597 feet (4,754 meters) Klyuchevskoy is Eurasia's tallest active volcano.

A visualized view of the Earth looking at the Arctic in 2023.

Using Satellites to Map Arctic Amplification

Caitlin Dempsey

Scientists are using remotely sensed data from Earth observation satellites to map and study Arctic amplification.