DOI: 10.1016/j.atmosenv.2017.04.022
Scopus记录号: 2-s2.0-85018521054
论文题名: Selection of suitable wavelengths for estimating total ozone column with multifilter UV radiometers
作者: Piedehierro A ; A ; , Cancillo M ; L ; , Serrano A ; , Antón M ; , Vilaplana J ; M
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 160 起始页码: 124
结束页码: 131
语种: 英语
英文关键词: Multichannel radiometer
; Multifilter radiometer
; Ozone
; Response-weighted irradiance
; Spectral global irradiance
; Spectral response functions
Scopus关键词: Computer system recovery
; Estimation
; Ozone
; Radiative transfer
; Radiometers
; Global irradiance
; Multichannel
; Multifilter radiometer
; Response-weighted irradiance
; Spectral response functions
; Ozone layer
; ozone
; irradiance
; radiative transfer
; radiometer
; recovery
; spectral analysis
; total ozone
; ultraviolet radiation
; wavelength
; Article
; atmosphere
; controlled study
; methodology
; ozone layer
; priority journal
; radiation detector
; reference value
; sensitivity analysis
; simulation
; solar radiation
; spectral sensitivity
; ultraviolet radiation
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: The complete recovery of the ozone layer is expected by mid-century but projections depend on the greenhouse scenario and the possible interaction with other atmospheric constituents. Therefore, enlarging the ground-based measuring network is necessary in order to accurately monitor the foreseeable recovery of the ozone layer in the next decades. Multifilter instruments can be used to complement the networks of Dobson and Brewer spectroradiometers. Total ozone column (TOC) can be retrieved from spectral or narrowband global ultraviolet (UV) measurements by comparing the ratio of two close wavelengths with significantly different ozone cross-sections against ratios simulated using a radiative transfer code. This methodology has been widely applied to multifilter radiometers but some unsolved discrepancies between the analyses of different authors regarding which pair of channels to use still remain, even for studies involving the same instrument. The present work aims to analyze TOC estimations derived using different pairs of wavelengths in the UV range (spectral and weighted by the filter response) as it would be recorded by the two main families of multifilter instruments (NILU-UV and GUV). Their spectral responses have been used for determining the response-weighted quantities from Brewer spectra. Validation against TOC values retrieved from direct solar measurements by a reference Brewer spectroradiometer shows that 340:305 wavelengths/channels result in the most accurate TOC estimations. According to our results, TOC values retrieved using response-weighted irradiance are more robust than those obtained using spectral irradiances at certain nominal wavelengths. This finding suggests calibrating multifilter radiometers towards the accurate measurement of response-weighted irradiances, being necessary to characterize the spectral response of each channel. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82286
Appears in Collections: 气候变化事实与影响
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作者单位: Departamento de Física, Universidad de Extremadura, Av. de Elvas s/n, Badajoz, Spain; Instituto Universitario de Investigación del Agua, Cambio Climático y Sostenibilidad (IACYS), Universidad de Extremadura, Spain; Departamento de Observación de la Tierra, Teledetección y Atmósfera, Estación de Sondeos Atmosféricos “El Arenosillo”, INTA, Carretera San Juan del Puerto-Matalascañas km 33, Mazagón, Huelva, Spain
Recommended Citation:
Piedehierro A,A,, Cancillo M,et al. Selection of suitable wavelengths for estimating total ozone column with multifilter UV radiometers[J]. Atmospheric Environment,2017-01-01,160