Method and device using dropping sounding to measure atmosphere vertical wind

Abstract

The invention provides a method and device for using dropping sounding to measure atmosphere vertical wind. The device for using the dropping sounding to measure the atmosphere vertical wind comprises a sounding balloon, a timing cutter, a hard shell ball, a short rope, a long rope and a GPS sound; the sounding balloon is connected to the hard shell ball through the short rope; the timing cutter is installed above the hard shell ball; the hard shell ball is connected to the GPS sound through the long rope; after the sounding balloon is elevated to a certain altitude, the timing cutter is started to cut the short rope, and the hard shell ball, the long rope and the GPS sound fall off as a dropping system. The method and device of the invention obtain atmosphere horizontal wind field information through releasing the sounding balloon from the ground and can calculate more accurately. The GPS sound is compact in design and small in volume and an area of a wind-facing section of the GPS sound is only 0.003m2, and has an effect on a resistance coefficient no more than 0.005. In a process of dropping sounding, the hard shell ball is used as a drag parachute. The hard shell ball is a three-dimensional symmetrical body, which simplifies a process of solving the resistance coefficient and avoids analysis of complex motions like swinging and rotating.

Description

technical field [0001] The invention relates to the technical field of atmospheric physics, in particular to a method and a device for measuring atmospheric vertical wind by using dropsonde. Background technique [0002] The vertical motion of the atmosphere is mainly caused by factors such as thermal, dynamic conditions and topographic fluctuations in the atmosphere. Systematic vertical motion often occurs in the convergence and divergence areas of horizontal airflow and near the fronts of cold and warm masses, clouds and precipitation in the troposphere. The phenomenon is often related to the vertical motion of the atmosphere. [0003] Because of the effects of vertical air motion on clouds, precipitation, and gravitational waves, the understanding of vertical air motion is of great significance to both meteorological and climatological research, so it is necessary to obtain vertical motion information at various scales. However, in relatively stable large and mesoscale a...

AI Technical Summary

Problems solved by technology

[0011] The shortcoming of the detection method of atmospheric vertical wind in the above-mentioned prior art is: if want to form a kind of practical technology, need C d and A b is a constant

However, the parachute as the main deceleration device of the system is an indeterminate shape (not fully inflated), and its shape is complex, and its cross-section is not consistent when driven by horizontal wind and vertical wind, so taking these two items as constants will introduce errors that are not easy to estimate

[0012] In addition, directly using w 1 with w 0 The difference is regarded as the vertical wind w a The algorithm has oversimplified the classical mechanics and fluid mechanics, it is difficult to obtain accurate results, and the error of the measurement results is relatively large.

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