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Archive > Volume 33 Issue 4 > 2007,33(4):97-101. DOI:10.7519/j.issn.1000-0526.2007.04.017 Prev Next

Selection of Onthespot Calibration Time Interval for Various Meteorologica l Elements of AWS

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    Abstract:
    On the basis of the 9month observational data from five representative AWS in 2005, daily extremum distributions of main meteorological elements were obtained by the statistical method. Calibration period of various meteorological element s is studied by analyzing calibration time span and data transmitting schedule. The results show that the optimal calibration period of various meteorological e lements is as follows: humidity:8:00-11:00, fleet soil temperature:14:00-17:30, deepseated soil temperature:8:00-11:30, wind direction and wind speed:8:00 -9:3 0 or 16:30-18:00, barometric pressure:11:00-12:30,evaporation:8:00-8:30 or 17:30 -18:00. These results will help to revise the schedule of onthespot calibra tion of AWS, and reduce the influence of calibration operation on AWS observatio n.

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