A New Tool Gives Pilots an Edge Against Turbulence

Photo by Richard Horvath on Unsplash

One of the most unpredictable annoyances in commercial flight is turbulence. Even though modern airplanes are designed to safely endure even extreme turbulence, today’s pilots still prefer to steer clear when possible. The Graphical Turbulence Guidance Nowcast (GTGN), a new tool from the National Weather Service (NWS) and NOAA, is expected to make this easier.

The new technology from the GTGN began service this year and gives the aviation industry near-real-time turbulence analysis. Because GTGN updates every 15 minutes, crews and dispatchers can now keep an eye on quickly shifting atmospheric conditions.

Using the most recent pilot reports (PIREPs), automatic Eddy Dissipation Rate (EDR) measurements from aircraft, and turbulence data collected from radar, the system continuously updates its short-range Graphical Turbulence Guidance (GTG) forecasts. The mixed "nowcast" can depict atmospheric conditions nearly instantly.

The advantages are substantial for pilots on commercial airlines. Crews can choose smoother altitudes, enhance passenger ride quality, lower the risk of in-flight injuries, and limit needless fuel waste from frequent altitude changes by being more alert of developing turbulence. Additionally, before an aircraft encounters difficult air, dispatchers can use the improved information to suggest route changes and optimize flight planning. GTGN offers an extra decision-support tool for tactical flight operations, although it is not meant to take the place of official turbulence SIGMETs.

More precise and regularly updated guidelines are a positive development as clear-air turbulence becomes a growing business problem. The GTGN is an additional step toward data-driven flight operations, providing pilots with more information to help them make safer, more intelligent decisions. Although turbulence cannot be completely eradicated, having a better understanding of where it is occurring keeps crews ahead of the game and improves everyone's safety.