Tilt-correction algorithms for 3D sonic anemometers The present Matlab code includes some algorithms to correct tilt angle errors from sonic anemometers, including the method by Wilczak et al. [1]. Other methods are the double and triple rotation algorithm. The present submission contains : 4 example files: one for the planar fit algorithm, one for the double rotation, one for the triple rotation and one for the estimation of the friction velocity with the different retrieval algorithms. The function tiltCorrection.m The function friction_velocity.m the file data.mat that includes simulated wind data Any comment, question or suggestion to improve the algorithm is warmly welcomed. Reference: [1] Wilczak, J. M., Oncley, S. P., & Stage, S. A. (2001). Sonic anemometer tilt correction algorithms. Boundary-Layer Meteorology, 99(1), 127-150.