Wind direction and wind speed are an important part of the natural climate. Its existence is not only a response to the characteristics of atmospheric circulation, but also a parameter index and energy source for climate comparison in different places. Observations of wind speed and wind direction, due to differences in the use of wind direction anemometers and equipment used by manpower, observation methods, and measurement principles, differences in observations between them are inevitable. The reason for this difference and its difference is worth exploring.
In the automated process of atmospheric exploration, parallel observations are required for a certain period of time. Under the principle of unified climate data archiving and management, the quality of observation data is evaluated to ensure the homogeneity of historical data. In many causes of non-uniformity of the climate data sequence, changes in the wind anemometer are important factors. Automatically higher than the manual observations averaged 0.46ms-1; automatically compared with manual observations, consistent with the total number of effective comparisons of 5.52%, greater than 72.42% of the total number of effective comparisons.
Both the reference climatological station wind direction anemometer and the laboratories conduct regular observations 24 times a day. The automatic station uses a fast response and starts the determination of the wind direction anemometer, and manually uses the electric wind direction anemometer. The wind anemometer and the artificial observation sensor are installed in the same observation field and arranged in rows. The east-west distance is 20m apart and they are on the wind bar or wind tower with an altitude of 10-12m.
For wind speed anemometer, the statistics of automatic contrast and manual observation average contrast difference of each wind speed item can be seen that each wind speed item is an automatic observation value higher than the manual observation value, and the high value is 0.06-0.46ms-1. Between the wind speed measurement accuracy and the accuracy of the deviation range; wind anemometer observations greater than the manual observations accounted for most of the observation and comparison samples, wind anemometer and artificial observation of wind speed values ​​consistent and less than a low proportion. This is an important comparative test for the accuracy of the application of wind anemometer.
In the automated process of atmospheric exploration, parallel observations are required for a certain period of time. Under the principle of unified climate data archiving and management, the quality of observation data is evaluated to ensure the homogeneity of historical data. In many causes of non-uniformity of the climate data sequence, changes in the wind anemometer are important factors. Automatically higher than the manual observations averaged 0.46ms-1; automatically compared with manual observations, consistent with the total number of effective comparisons of 5.52%, greater than 72.42% of the total number of effective comparisons.
Both the reference climatological station wind direction anemometer and the laboratories conduct regular observations 24 times a day. The automatic station uses a fast response and starts the determination of the wind direction anemometer, and manually uses the electric wind direction anemometer. The wind anemometer and the artificial observation sensor are installed in the same observation field and arranged in rows. The east-west distance is 20m apart and they are on the wind bar or wind tower with an altitude of 10-12m.
For wind speed anemometer, the statistics of automatic contrast and manual observation average contrast difference of each wind speed item can be seen that each wind speed item is an automatic observation value higher than the manual observation value, and the high value is 0.06-0.46ms-1. Between the wind speed measurement accuracy and the accuracy of the deviation range; wind anemometer observations greater than the manual observations accounted for most of the observation and comparison samples, wind anemometer and artificial observation of wind speed values ​​consistent and less than a low proportion. This is an important comparative test for the accuracy of the application of wind anemometer.
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