Comparison between Measurements Obtained with a Meteorological Mast and a Rass Sodar
نویسندگان
چکیده
Data of wind speed, wind direction and temperature obtained from a meteorological mast and a RASS sodar are contrasted. Wind data were compared at a height of 100 m and temperature at 51 and 100 m. 10 minute averages during the month of April 2001 were used. Wind speeds showed satisfactory correlation and the temperature fit was better at 100 m than at 51 m. Mast data were steadier than those from the RASS sodar. The probability density functions of the wind direction specified the prevailing directions: 66, 220 and 272o for the mast and 59 and 253o for the sodar. The strength of the association between both circular variables was verified by means of the T-linear association. Finally, the differences between both devices showed a clear hourly evolution, where the greatest dispersions were found during daylight.
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