In Situ EDR Algorithm Standards Analyses

In August 2014, the Federal Aviation Administration (FAA) provided an initial set of in situ Eddy Dissipation Rate (EDR) algorithm standards recommendations to the RTCA and FAA Flight Standards governance authorities. In situ EDR is the estimation of turbulence values from an aircraft in-flight, where the turbulence metric, EDR, is intended to be an aircraft-independent, universal measure of turbulence based on the rate at which energy dissipates in the atmosphere. Since 2014, user performance objectives for peak EDR have become better understood. This information has now been leveraged and incorporated into an updated peak EDR algorithm performance standards recommendation. Furthermore, additional validation through exercising existing EDR algorithms has been performed to include: a range of turbulence intensities and types, as well as multiple airframe types and varied aircraft sensor and avionics noise levels.