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NOAA's Space Weather Prediction Center

Space Weather Prediction Center Education and Outreach

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Space Weather refers to variations in the space environment between the sun and Earth (and throughout the solar system) that can affect technologies in space and on Earth. Space weather is primarily driven by solar storm phenomenon that include coronal mass ejections, solar flares, solar particle events and solar wind. These phenomena can occur in various regions on the sun’s surface, but only Earth directed solar storms are potential drivers of space weather events on Earth. An understanding of solar storm phenomena is an important component to developing accurate space weather forecasts (event onset, location, duration, and magnitude).

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Effect of Solar Wind on the Geomagnetic Field

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To monitor changes in the earth’s magnetic field and relate these changes to solar events such as
flares. Many variations of this design are in use by amateurs because of its simplicity, but now with the availability of inexpensive and sensitive Hall-effect sensors that easily interface to home computers, it should be possible to make more quantitative measurements of changes in the geomagnetic field due to solar wind. By monitoring changes in the geomagnetic field, aurorae and related effects can be forecast and studied.

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