Acoustic travel-time tomography of the atmospheric surface layer (ASL) is based on measurements of travel time of sound impulse propagation between different pairs of sources (speakers) and receivers (microphones), which constitute the tomography array. Then, the temperature and wind velocity fields inside the tomography array are reconstructed with inverse algorithms. Improved knowledge about these fields is important in many applications: validation and input data for atmospheric models, studies of turbulence over complex topography and heterogeneous surfaces, input data for wave propagation models, etc.
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