Raindrop measuring method and solid-state area array laser raindrop spectrometer

Abstract

The invention discloses a raindrop measuring method and a solid-state area array laser raindrop spectrometer, belongs to the field of rainfall measurement, and aims to solve the problems that the use environment is limited and the measurement accuracy of part of scenes is reduced due to the fact that a sampling area of an existing raindrop spectrometer cannot be adjusted and sensor transmitting and receiving ends are different. The solid-state area array laser radar sensor adopting the same transmitting-receiving end is provided, the sampling area can be adjusted within the measurement range of the sensor to meet the measurement requirements in different scenes, the size of the sensor can be effectively reduced through the sensor at the same transmitting-receiving end, installation, use and maintenance are facilitated, and the detection requirements of different scenes are met. Through the sensor, high-resolution three-dimensional point cloud data can be obtained, microscopic characteristic quantities of raindrops such as the axial ratio, the equivalent diameter, the volume and the speed can be obtained, a raindrop spectrum is calculated, and the raindrop spectrum is used for rainfall macroscopic characteristic quantities and fitting of a Z-I relation.

Description

technical field [0001] The invention belongs to the field of precipitation measurement, and relates to a raindrop measurement method and a solid-state array laser raindrop spectrometer. Background technique [0002] Precipitation includes rain, snow, hail, etc., and rain is the most common in most regions of the world. The microscopic characteristics of raindrops include axial ratio, equivalent diameter, volume, and velocity. Accurate measurement of raindrops can help to improve the understanding of microphysical processes in the process of rainfall formation and development, deepen the understanding of the impact of the environment on raindrops, and improve the quality of rainfall. Measurement precision and numerical prediction accuracy. [0003] The raindrop spectrum is the relationship between the number concentration of raindrops and the diameter. Through the raindrop spectrum, the macroscopic characteristics of rainfall such as rain intensity (I), radar reflectivity fa...

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Problems solved by technology

[0005] The present invention mainly aims at the problems of the existing raindrop spectrometer, such as the limited use environment caused by the non-adjustable sampling area and the heresy of the sensor sending and receiving, and the reduced measurement accuracy of some scenes, etc., and proposes a raindrop measurement method with an adjustable sampling area and a solid-state array laser raindrop spectrometer

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