Uncertainty analysis of total ozone derived from direct solar irradiance spectra in the presence of unknown spectral deviations

Anna Vaskuri, Petri Kärhä, Luca Egli, Julian Gröbner, Erkki Ikonen

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)

Abstract

We demonstrate the use of a Monte Carlo model to estimate the uncertainties in total ozone column (TOC) derived from ground-based direct solar spectral irradiance measurements. The model estimates the effects of possible systematic spectral deviations in the solar irradiance spectra on the uncertainties in retrieved TOC. The model is tested with spectral data measured with three different spectroradiometers at an intercomparison campaign of the research project "Traceability for atmospheric total column ozone" at Izaña, Tenerife on 17 September 2016. The TOC values derived at local noon have expanded uncertainties of 1.3% (3.6 DU) for a high-end scanning spectroradiometer, 1.5% (4.4 DU) for a high-end array spectroradiometer, and 4.7% (13.3 DU) for a roughly adopted instrument based on commercially available components and an array spectroradiometer when correlations are taken into account. When neglecting the effects of systematic spectral deviations, the uncertainties reduce by a factor of 3. The TOC results of all devices have good agreement with each other, within the uncertainties, and with the reference values of the order of 282DU during the analysed day, measured with Brewer spectrophotometer #183.

Original languageEnglish
Pages (from-to)3595-3610
Number of pages16
JournalAtmospheric Measurement Techniques
Volume11
Issue number6
DOIs
Publication statusPublished - 20 Jun 2018
MoE publication typeA1 Journal article-refereed

Fingerprint

total ozone
uncertainty analysis
irradiance
ozone
effect

Cite this

Vaskuri, Anna ; Kärhä, Petri ; Egli, Luca ; Gröbner, Julian ; Ikonen, Erkki. / Uncertainty analysis of total ozone derived from direct solar irradiance spectra in the presence of unknown spectral deviations. In: Atmospheric Measurement Techniques. 2018 ; Vol. 11, No. 6. pp. 3595-3610.
@article{a551b99e175c4046897aa5c156e10652,
title = "Uncertainty analysis of total ozone derived from direct solar irradiance spectra in the presence of unknown spectral deviations",
abstract = "We demonstrate the use of a Monte Carlo model to estimate the uncertainties in total ozone column (TOC) derived from ground-based direct solar spectral irradiance measurements. The model estimates the effects of possible systematic spectral deviations in the solar irradiance spectra on the uncertainties in retrieved TOC. The model is tested with spectral data measured with three different spectroradiometers at an intercomparison campaign of the research project {"}Traceability for atmospheric total column ozone{"} at Iza{\~n}a, Tenerife on 17 September 2016. The TOC values derived at local noon have expanded uncertainties of 1.3{\%} (3.6 DU) for a high-end scanning spectroradiometer, 1.5{\%} (4.4 DU) for a high-end array spectroradiometer, and 4.7{\%} (13.3 DU) for a roughly adopted instrument based on commercially available components and an array spectroradiometer when correlations are taken into account. When neglecting the effects of systematic spectral deviations, the uncertainties reduce by a factor of 3. The TOC results of all devices have good agreement with each other, within the uncertainties, and with the reference values of the order of 282DU during the analysed day, measured with Brewer spectrophotometer #183.",
author = "Anna Vaskuri and Petri K{\"a}rh{\"a} and Luca Egli and Julian Gr{\"o}bner and Erkki Ikonen",
year = "2018",
month = "6",
day = "20",
doi = "10.5194/amt-11-3595-2018",
language = "English",
volume = "11",
pages = "3595--3610",
journal = "Atmospheric Measurement Techniques",
issn = "1867-1381",
publisher = "European Geosciences Union",
number = "6",

}

Uncertainty analysis of total ozone derived from direct solar irradiance spectra in the presence of unknown spectral deviations. / Vaskuri, Anna; Kärhä, Petri; Egli, Luca; Gröbner, Julian; Ikonen, Erkki.

In: Atmospheric Measurement Techniques, Vol. 11, No. 6, 20.06.2018, p. 3595-3610.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Uncertainty analysis of total ozone derived from direct solar irradiance spectra in the presence of unknown spectral deviations

AU - Vaskuri, Anna

AU - Kärhä, Petri

AU - Egli, Luca

AU - Gröbner, Julian

AU - Ikonen, Erkki

PY - 2018/6/20

Y1 - 2018/6/20

N2 - We demonstrate the use of a Monte Carlo model to estimate the uncertainties in total ozone column (TOC) derived from ground-based direct solar spectral irradiance measurements. The model estimates the effects of possible systematic spectral deviations in the solar irradiance spectra on the uncertainties in retrieved TOC. The model is tested with spectral data measured with three different spectroradiometers at an intercomparison campaign of the research project "Traceability for atmospheric total column ozone" at Izaña, Tenerife on 17 September 2016. The TOC values derived at local noon have expanded uncertainties of 1.3% (3.6 DU) for a high-end scanning spectroradiometer, 1.5% (4.4 DU) for a high-end array spectroradiometer, and 4.7% (13.3 DU) for a roughly adopted instrument based on commercially available components and an array spectroradiometer when correlations are taken into account. When neglecting the effects of systematic spectral deviations, the uncertainties reduce by a factor of 3. The TOC results of all devices have good agreement with each other, within the uncertainties, and with the reference values of the order of 282DU during the analysed day, measured with Brewer spectrophotometer #183.

AB - We demonstrate the use of a Monte Carlo model to estimate the uncertainties in total ozone column (TOC) derived from ground-based direct solar spectral irradiance measurements. The model estimates the effects of possible systematic spectral deviations in the solar irradiance spectra on the uncertainties in retrieved TOC. The model is tested with spectral data measured with three different spectroradiometers at an intercomparison campaign of the research project "Traceability for atmospheric total column ozone" at Izaña, Tenerife on 17 September 2016. The TOC values derived at local noon have expanded uncertainties of 1.3% (3.6 DU) for a high-end scanning spectroradiometer, 1.5% (4.4 DU) for a high-end array spectroradiometer, and 4.7% (13.3 DU) for a roughly adopted instrument based on commercially available components and an array spectroradiometer when correlations are taken into account. When neglecting the effects of systematic spectral deviations, the uncertainties reduce by a factor of 3. The TOC results of all devices have good agreement with each other, within the uncertainties, and with the reference values of the order of 282DU during the analysed day, measured with Brewer spectrophotometer #183.

UR - http://www.scopus.com/inward/record.url?scp=85048900611&partnerID=8YFLogxK

U2 - 10.5194/amt-11-3595-2018

DO - 10.5194/amt-11-3595-2018

M3 - Article

VL - 11

SP - 3595

EP - 3610

JO - Atmospheric Measurement Techniques

JF - Atmospheric Measurement Techniques

SN - 1867-1381

IS - 6

ER -