Which of the following is NOT a type of image provided by geostationary satellites?

Geostationary satellites are primarily designed to monitor and provide continuous data for weather forecasting and environmental monitoring. They operate at a fixed position relative to the Earth's surface, allowing them to capture images in real-time.

Visible images are commonly used for monitoring cloud cover and surface conditions, making them valuable for weather observation. Infrared images help in detecting temperature variations and identifying clouds, which is crucial for understanding weather systems. Water vapor images specifically target the moisture content in the atmosphere, providing important insights into weather patterns and potential storm development.

While ultraviolet imaging has applications in atmospheric research, it is not one of the main image types that geostationary satellites typically provide. This limitation comes from the fact that most geostationary satellites focus on visible, infrared, and water vapor imaging as they are vital for immediate weather assessment and forecasting needs. Thus, ultraviolet imaging is not a standard product of geostationary satellite data due to these operational focuses.