基于高光谱遥感的GIS舱室 PM_2.5 质量浓度垂直分布研究

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文章编号：1674-6139（2026）04-0115-05

中图分类号：X87文献标志码：B

Research on Vertical Distribution of PM2.5 Mass Concentration in GIS Cabins Based on Hyperspectral Remote Sensing

MeiBowen，WangXianlin

（School of MachineryandAutomation，Wuhan Universityof Scienceand Technology，Wuhan 43OoOo，China）

Abstract：To analyze the spatial distribution characteristics and diffusion rules of PM2.5 ina closed GIS cabin，the vertical distribution characteristics of PM2.5 in the GIS cabin were explored through hyperspectral remote sensing technology.Hyperspectral remote sensingequipmentwasusedtoobtainremotesensingdata.TheQDOASsoftwarewasemployedtoanalyzethesedatatocalculatethediagonal column concentration of PM2.5 .The HEIPRO inversion algorithm was adopted to calculate the concentration distribution profile of PM2，5 in the vertical direction.The test results show that the concentration of PM2.5 is distributed ina gradient with height，being higher near the ground and lower far from it.Hyperspectral data is closely related to PM2，5 concentration. The reflectance is affected by wavelength and concentration．When the wind is strong in spring，the PM2.5 in the upper air is low，and the ground concentration rises during the evening peak.Itislowthroughoutthedayinsummerandlightlyhigherinthafteroon.Theconcentrationofburedcropsroseduringthelate autumnrushhour.Theconcentrationishighduringthemiddayandeveningrushhoursinwinter，anditdifusesintothupperatmosphere when there is no wind.

Key words：hyperspectral remote sensing；GIS installation；internal environment; PM2.5 ；mass concentration

前言

PM2.5 颗粒物因其直径小于2.5微米，能够在空气中长时间漂浮，并深入人体呼吸道和肺部，对人体健康产生严重影响[1]。（剩余5054字）