👉 The Zone Fluid, also known as Zone Plasma, is a type of plasma that forms in the ionosphere and upper atmosphere, characterized by its ability to modulate radio wave propagation. It consists of regions with varying electron densities, creating distinct zones where the plasma's properties change significantly. These zones are typically categorized into several layers based on altitude and electron density, such as the D, E, F1, and F2 regions. Each zone has unique characteristics that affect radio wave frequencies differently; for instance, the F2 region, which is the lowest and densest, can significantly absorb or reflect certain frequencies, making it crucial for understanding and predicting radio communication disruptions during solar events.