Intercomparison of aerosol optical depth from brewer ozone spectrophotometers and CIMEL sunphotometers measurements

A. Cheymol, L. Gonzalez Sotelino, K. S. Lam, Jhoon Kim, V. Fioletov, A. M. Siani, H. De Backer

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The Langley plot method applied on the Brewer Ozone measurements can provide accurate Aerosol Optical Depth (AOD) in the UV-B. We present seven intercomparisons between AOD retrieved from Brewer Ozone measurements at 320 nm and AOD measured by CIMEL sunphotometer at 340 nm or 440 nm (shifted to 320 nm in using the Angstr̈om's law), which are stored in the international AERONET database. Only the intercomparisons between co-located instruments can be used to validate the Langley Plot Method applied to the Brewer measurements: in this case, all the correlation coefficients are above 0.82. If the instruments are not at the same site, the correlation between the AOD retrieved by both instruments is much lower. In applying the Angstr̈om's law the intercomparison is improved compared to previous study.

Original languageEnglish
Pages (from-to)733-741
Number of pages9
JournalAtmospheric Chemistry and Physics
Volume9
Issue number2
DOIs
Publication statusPublished - 2009 Jan 16

Fingerprint

optical depth
ozone
aerosol
method

All Science Journal Classification (ASJC) codes

  • Atmospheric Science

Cite this

Cheymol, A. ; Sotelino, L. Gonzalez ; Lam, K. S. ; Kim, Jhoon ; Fioletov, V. ; Siani, A. M. ; Backer, H. De. / Intercomparison of aerosol optical depth from brewer ozone spectrophotometers and CIMEL sunphotometers measurements. In: Atmospheric Chemistry and Physics. 2009 ; Vol. 9, No. 2. pp. 733-741.
@article{3975c499c84442c8bf4e49d93c5f6bb2,
title = "Intercomparison of aerosol optical depth from brewer ozone spectrophotometers and CIMEL sunphotometers measurements",
abstract = "The Langley plot method applied on the Brewer Ozone measurements can provide accurate Aerosol Optical Depth (AOD) in the UV-B. We present seven intercomparisons between AOD retrieved from Brewer Ozone measurements at 320 nm and AOD measured by CIMEL sunphotometer at 340 nm or 440 nm (shifted to 320 nm in using the Angstr̈om's law), which are stored in the international AERONET database. Only the intercomparisons between co-located instruments can be used to validate the Langley Plot Method applied to the Brewer measurements: in this case, all the correlation coefficients are above 0.82. If the instruments are not at the same site, the correlation between the AOD retrieved by both instruments is much lower. In applying the Angstr̈om's law the intercomparison is improved compared to previous study.",
author = "A. Cheymol and Sotelino, {L. Gonzalez} and Lam, {K. S.} and Jhoon Kim and V. Fioletov and Siani, {A. M.} and Backer, {H. De}",
year = "2009",
month = "1",
day = "16",
doi = "10.5194/acp-9-733-2009",
language = "English",
volume = "9",
pages = "733--741",
journal = "Atmospheric Chemistry and Physics",
issn = "1680-7316",
publisher = "European Geosciences Union",
number = "2",

}

Intercomparison of aerosol optical depth from brewer ozone spectrophotometers and CIMEL sunphotometers measurements. / Cheymol, A.; Sotelino, L. Gonzalez; Lam, K. S.; Kim, Jhoon; Fioletov, V.; Siani, A. M.; Backer, H. De.

In: Atmospheric Chemistry and Physics, Vol. 9, No. 2, 16.01.2009, p. 733-741.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Intercomparison of aerosol optical depth from brewer ozone spectrophotometers and CIMEL sunphotometers measurements

AU - Cheymol, A.

AU - Sotelino, L. Gonzalez

AU - Lam, K. S.

AU - Kim, Jhoon

AU - Fioletov, V.

AU - Siani, A. M.

AU - Backer, H. De

PY - 2009/1/16

Y1 - 2009/1/16

N2 - The Langley plot method applied on the Brewer Ozone measurements can provide accurate Aerosol Optical Depth (AOD) in the UV-B. We present seven intercomparisons between AOD retrieved from Brewer Ozone measurements at 320 nm and AOD measured by CIMEL sunphotometer at 340 nm or 440 nm (shifted to 320 nm in using the Angstr̈om's law), which are stored in the international AERONET database. Only the intercomparisons between co-located instruments can be used to validate the Langley Plot Method applied to the Brewer measurements: in this case, all the correlation coefficients are above 0.82. If the instruments are not at the same site, the correlation between the AOD retrieved by both instruments is much lower. In applying the Angstr̈om's law the intercomparison is improved compared to previous study.

AB - The Langley plot method applied on the Brewer Ozone measurements can provide accurate Aerosol Optical Depth (AOD) in the UV-B. We present seven intercomparisons between AOD retrieved from Brewer Ozone measurements at 320 nm and AOD measured by CIMEL sunphotometer at 340 nm or 440 nm (shifted to 320 nm in using the Angstr̈om's law), which are stored in the international AERONET database. Only the intercomparisons between co-located instruments can be used to validate the Langley Plot Method applied to the Brewer measurements: in this case, all the correlation coefficients are above 0.82. If the instruments are not at the same site, the correlation between the AOD retrieved by both instruments is much lower. In applying the Angstr̈om's law the intercomparison is improved compared to previous study.

UR - http://www.scopus.com/inward/record.url?scp=74549149324&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=74549149324&partnerID=8YFLogxK

U2 - 10.5194/acp-9-733-2009

DO - 10.5194/acp-9-733-2009

M3 - Article

VL - 9

SP - 733

EP - 741

JO - Atmospheric Chemistry and Physics

JF - Atmospheric Chemistry and Physics

SN - 1680-7316

IS - 2

ER -