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<br />Symbol <br /> <br />" <br /> <br />QE <br />QG <br />QH <br />QLt <br />QL+ <br /> <br />QR <br />QT <br />Rd <br /> <br />-r <br />r <br /> <br />T <br /> <br />'" <br /> <br />T <br />s <br /> <br />~ <br /> <br />t.t <br />, s <br /> <br />U Reference velocity <br /> <br />Time; sampling time <br /> <br />LIST OF SYMBOLS - (Continued) <br /> <br />Definition <br /> <br />Latent heat of evaporation and evapotranspiration <br /> <br />Transfer of heat through the ground <br /> <br />Turbulent transfer of sensible heat to the atmosphere <br /> <br />Long-wave radiation emitted by the surface <br /> <br />Long-wave radiation received by the surface from the <br />atmosphere <br /> <br />Short-wave radiation reflected from the earth <br /> <br />Short-wave radiation from sun and sky <br /> <br />Specific gas constant for dry air <br /> <br />Three dimensional vector for position <br /> <br />Temperature; travel time <br /> <br />Temperature of source material <br /> <br />U Mean wind speed effecting a dispersing tracer plume <br /> <br />U Freestream velocity <br />00 <br /> <br />-r <br />U <br /> <br />U, Velocity components in x, y and z directions <br />~ <br /> <br />Total velocity vector <br /> <br />-r <br />U <br />g <br /> <br />U*,u* <br /> <br />Geostrophic or freestream velocity <br /> <br />Friction velocity <br /> <br />u. Velocity fluctuations in x, y and z directions <br />~ <br /> <br />~ <br /> <br />w Source efflux velocity <br />s <br /> <br />Distances along longitudinal, lateral and vertical directions <br /> <br />x,y,z <br /> <br />. X;Z <br /> <br />-r <br />Z <br /> <br />Reference lengths; height of terrain <br /> <br />Three dimensional terrain <br /> <br />9 <br />