Acoustic temperature field measurement in deep-sea hydrothermal vents and reconstruction algorithm

The basic principle of acoustic temperature field measurement in deep-sea hydrothermal vents is introduced. Based on single and double-peaked temperature field models, the reconstruction of the temperature fields using least square method is presented. The absolute error, relative error and root mean square error of the reconstructed temperature fields are given. Simulation result shows that least square method has good reconstruction accuracy in temperature field reconstruction. Furthermore, increasing acoustic measurement paths could improve the reconstruction accuracy effectively. Lake experiment result shows that least square method could reconstruct single-peaked temperature field in a hydrothermal vent.