Ultraviolet: Proxy

The ionosphere—the layer of the atmosphere that reflects radio signals—is created by solar UV radiation stripping electrons from atoms. By monitoring proxies, telecommunications companies and GPS providers can predict signal disruptions caused by solar-induced ionospheric storms. Climate and Ozone Monitoring

While the oldest and simplest proxy, sunspot counts remain relevant. A higher number of sunspots typically correlates with higher UV and X-ray output, though it is a "coarser" metric compared to F10.7 or Mg II. Applications: Why This Data Matters ultraviolet proxy

Understanding the Ultraviolet Proxy: A Window into Solar Health and Atmospheric Impact The ionosphere—the layer of the atmosphere that reflects

We have ground-based proxy data (like sunspot counts) dating back centuries, whereas satellite data only spans a few decades. Common Types of Ultraviolet Proxies ultraviolet proxy