Device and method for measuring two-waveband cloud height of foundation

Abstract

The invention belongs to the field of atmospheric detection and particularly relates to a device and a method for measuring the two-waveband cloud height of a foundation. The device provided by the invention comprises a data processor, two visible light image sensors, an infrared sensor and a ground weather data receiving module, wherein the two visible light image sensors are respectively connected with the processor and used for obtaining and measuring the cloud images of a region sky; the infrared sensor is used for obtaining the air temperature of the region sky; the ground weather data receiving module is used for obtaining the ground weather data of a ground automatic weather station; and the processor computes the two-imaging cloud base height according to the image pair which is formed by the images, computes the vertical temperature descending gradient coefficients under the region cloud by combining the sky air temperature and the ground weather data to form a coefficient array and computes the region cloud height by selecting the multiple coefficient of the coefficient array. In the invention, a vertical temperature descending gradient coefficient array is formed by continuously obtaining and measuring the vertical temperature descending gradient coefficients under the region sky cloud, and the cloud height of the measured region sky is computed by selecting the multiple coefficients in the coefficient array, thereby greatly enhancing the accuracy that the infrared sensor measures the cloud height.

Description

technical field [0001] The invention relates to the field of atmospheric detection, in particular to a ground-based dual-band cloud height measuring device and method. Background technique [0002] Cloud height refers to the vertical distance from the cloud base to the ground, and the measurement of cloud height is of great significance to the field of aerospace. Cloud height measurement devices include laser cloud measuring instruments, infrared cloud measuring instruments, etc., and infrared cloud measuring devices are more advanced, including: the unitary ground-based all-sky thermal infrared cloud imager developed by the Institute of Atmospheric Physics, Chinese Academy of Sciences. The thermal infrared cloud imager is controlled by a servo motor to scan the whole sky every 15 minutes, using an infrared single-point probe to obtain the infrared radiation brightness temperature of each point in the sky, and then stitching together an infrared radiation image of the whole ...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a ground-based dual-band cloud height measurement device and method, aiming at solving the problem that the cloud height measured by the existing cloud height measurement technology is not very accurate, and at the same time, it is greatly affected by the environment and requires high protection measures. , and the problem of re-establishing models or parameters for different places

Images