Method for obtaining surface layer meteorological element profile cross-sectional data based on remote control airship

Abstract

The invention relates to a method for obtaining surface layer meteorological element profile cross-sectional data based on a remote control airship. Through integrating the remote control airship and an meteorological element recorder, and combining with differential GPS space positioning technology, the horizontal route of the remote control airship is vertical to plot boundary lines of two land types, longitude and latitude coordinates of a plurality of horizontal routes arranged in the vertical direction are identical, through a common time item of a flight record and a measuring data, the meteorological element data is linked with the space position data. According to the delay time measured by the meteorological element recorder and combined with the flight speed data, the meteorological element measuring space position is corrected. The meteorological element vertical and horizontal profile data is sequentially processed by a mathematical curve fitting; through the uniformly-spaced dereferencing of the vertical and horizontal position variable, the meteorological element vertical and horizontal profile fitting curve is sequentially discretized. The invention can precisely and particularly obtain two-dimensional profile cross-sectional data in the vertical and the horizontal directions of the surface layer meteorological element.

Description

technical field [0001] The invention relates to a method for acquiring profile data of near-surface meteorological elements based on a remote-controlled airship, and a method for acquiring profile data of near-surface meteorological elements combined with a remote-controlled airship and a meteorological element recorder. Background technique [0002] The Earth's land surface is a complex system mosaiced by patches of different types, sizes, and shapes, such as forests, grasslands, farmlands, water bodies, wetlands, and towns. The spatial differences in the properties of the underlying surface will inevitably affect the near-surface atmospheric system. Therefore, the ability to obtain accurate and detailed vertical and horizontal two-dimensional profile data of near-surface meteorological elements will directly affect the research on the spatial variation of regional-scale meteorological elements, which is related to the accuracy of local weather forecasts. [0003] The conti...

AI Technical Summary

Problems solved by technology

[0004] Different combinations of meteorological element measurement platforms and meteorological element recorders constitute methods for obtaining meteorological element profile data with their own characteristics, mainly including the following methods: ① Meteorological observation towers measure vertical profile data of meteorological elements through different height recorders, but The height of measurement is limited; if you want to measure the profile data of meteorological elements, you need to install meteorological observation towers in different locations, so the observation cost is high, it is difficult to move in space, and the vertical profile data density of observations is also limited

②The tethered balloon can be lifted up to a height of one kilometer, but it is very difficult to fly the tethered balloon to carry out meteorological element observations in areas such as water bodies and wetlands, and the number of flying is limited, and it is difficult to ensure that multiple vertical profiles measured on the same section

③Sounding balloons and sounding rockets are mainly used to detect large-scale vertical profile data of meteorological elements from the ground to tens of kilometers in the stratosphere. Unable to generate profile profile data

④The altitude-fixed balloon can observe the profile data of meteorological elements in the horizontal direction, but it is usually located at the height of the stratosphere, and can only measure the horizontal profile data of meteorological elements, and it is difficult to control the altitude and horizontal movement direction of the air, so it cannot be used for the profile of meteorological elements near the surface. Fine measurement of line profile data

Due to the fast flight speed of UAVs, the horizontal profile data of meteorological elements formed is relatively rough; and most UAVs fly at the same horizontal altitude, it is difficult to generate vertical profile data of meteorological elements

[0005] To sum up, the existing measurement of meteorological element profile data is usually suitable for the observation of large and medium-scale atmospheric motion, and the vertical and horizontal directions are generally carried out separately, and there are low measurement density, high observation cost, and difficulty in implementation. Large and other shortcomings, unable to meet the needs of obtaining profile data of near-surface meteorological elements