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Turbulence dissipation is an important process affecting the energy balancein molecular clouds, the birth place of stars. Previously, the rate ofturbulence dissipation is often estimated with semi-analytic formulae fromsimulation. Recently we developed a data analysis technique calledcore-velocity-dispersion (CVD), which, for the first time, provides directmeasurements of the turbulence dissipation rate in Taurus, a star formingcloud. The thus measured dissipation rate of $(0.45\pm 0.05)\times 10^{33} {\rmerg\ s^{-1}}$ is similar to those from dimensional analysis and also consistentwith the previous energy injection rate based on molecular outflows andbubbles.

Studies of Turbulence Dissipation in Taurus Molecular Cloud with Core Velocity Dispersion (CVD)