EarthLabs > Climate and the Cryosphere > Lab 1: Getting to Know the Cryosphere

Getting to Know the Cryosphere

Introduction

The Earth's surface contains many forms of snow and ice, including sea ice, lake and river ice, snow cover, glaciers, ice caps and sheets, and frozen ground. Together, these features are known as the cryosphere. Snow and ice are a vital part of the global climate system because they influence air temperatures, sea levels, ocean currents, and storm patterns all over the world. Life on Earth depends on the cryosphere for many different things. In Arctic regions, sea ice provides a home for animals like seals and polar bears, feeding and breeding areas for a variety of migrating species, and hunting grounds for local communities. Much of the world depends on the cryosphere for fresh drinking water, while others use it for recreationwithout the cryosphere, there would be no skiing, sledding, or snowball fights!

Although concentrated in the polar regions, parts of the cryosphere can be found at nearly all latitudes, which make them useful indicators of global climate and climate change. Different parts of the cryosphere change on different timescales ranging from less than a day to more than a millennium, as shown in the figure below. Scientists keep a close watch on the cryosphere and patterns in how the cryosphere changes over time to find important clues about the health of our planet.

In Part A of this lab, you will learn about the different components that make up the cryosphere and where they can be found on Earth. In Part B, you will be introduced to some of the ways climate and the cryosphere influence one another, as well as how and why scientists study changes in our planet's snow and ice. In Part C, you will learn about some of the ways that humans, plants, and animals are connected to and affected by the cryosphere.

After completing this investigation, you should be able to:


Keeping Track of What You Learn

Throughout these labs, you will find two kinds of questions. Your teacher will let you know which answers you should record and turn in.

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