What is meant by “T-web” in the context of aeronautical charts?

In the context of aeronautical charts, "T-web" refers to a terminal weather broadcast for pilots. This system provides crucial weather information that is relevant to flight planning and execution, especially during terminal operations. Pilots utilize T-web to access timely and localized weather data, which may include conditions such as visibility, wind speed, and precipitation, all of which are vital for safe takeoffs and landings. By receiving this information, pilots can make informed decisions regarding their flight paths and approaches, ensuring safety and efficiency during their operations.

The other options relate to various aviation technologies and systems, but they do not capture the specific function and purpose of T-web as a weather broadcast service. Understanding the role of T-web is essential for pilots, as it directly impacts their situational awareness and decision-making in flight operations.