Aerosol‐radiation interaction in the cloudless atmosphere during LACE 98 1. Measured and calculated broadband solar and spectral surface insolations
Identifieur interne : 001474 ( Main/Curation ); précédent : 001473; suivant : 001475Aerosol‐radiation interaction in the cloudless atmosphere during LACE 98 1. Measured and calculated broadband solar and spectral surface insolations
Auteurs : Manfred Wendisch [Allemagne] ; Andreas Keil [Allemagne, Royaume-Uni] ; Dörthe Müller [Allemagne] ; Ulla Wandinger [Allemagne] ; Peter Wendling [Allemagne] ; Armin Stifter [Allemagne] ; Andreas Petzold [Allemagne] ; Markus Fiebig [Allemagne] ; Matthias Wiegner [Allemagne] ; Volker Freudenthaler [Allemagne] ; Wolfgang Armbruster [Allemagne] ; Wolfgang Von Hoyningen Uene [Allemagne] ; Ulrich Leiterer [Allemagne]Source :
- Journal of Geophysical Research: Atmospheres [ 0148-0227 ] ; 2002-11-16.
Abstract
Vertical profile measurements of aerosol particle size distributions and of meteorological parameters (obtained from aircraft, radiosondes, and lidar) are used as input to a spectral radiative transfer model to calculate broadband solar and spectral surface insolations. The calculated values are compared to measured ones gathered with broadband solar pyranometers and pyrheliometers, and a fixed‐grating photodiode array spectroradiometer with 512 spectral channels between 500 and 920 nm wavelength. The measurements were obtained during the joint field campaign Lindenberg Aerosol Characterization Experiment (LACE) 98 near Berlin/Germany in the summer of 1998. Two cases (days with high and low aerosol loading, respectively) are investigated in detail. Furthermore, a measurement‐based sensitivity analysis was carried out focusing on the influence of particle composition (complex refractive index) and of microphysical and humidity growth uncertainties on the calculated surface insolations. Assuming a spectral refractive index of ammonium sulfate for the aerosol particles, on average the global component of the broadband solar surface insolations is 11–20 W m−2 (2–3%) greater than the measured values; the direct portion is 17–28 W m−2 (4–5%) higher, and its diffuse component is 6–7 W m−2 (4–10%) lower in comparison to the measurements. The measured and calculated spectral surface insolations (global portion) agree well in the central visible spectral region (500–600 nm wavelength). Toward larger wavelengths (near infrared) the calculated spectral surface insolations are increasingly higher than the measured ones.
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DOI: 10.1029/2000JD000226
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Measured and calculated broadband solar and spectral surface insolations</title><author><name sortKey="Wendisch, Manfred" sort="Wendisch, Manfred" uniqKey="Wendisch M" first="Manfred" last="Wendisch">Manfred Wendisch</name><affiliation wicri:level="1"><mods:affiliation>Institute for Tropospheric Research, Leipzig, Germany</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Institute for Tropospheric Research, Leipzig</wicri:regionArea></affiliation></author><author><name sortKey="Keil, Andreas" sort="Keil, Andreas" uniqKey="Keil A" first="Andreas" last="Keil">Andreas Keil</name><affiliation wicri:level="1"><mods:affiliation>Institute for Tropospheric Research, Leipzig, Germany</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Institute for Tropospheric Research, Leipzig</wicri:regionArea></affiliation><affiliation wicri:level="1"><mods:affiliation>Now at Met Office, Farnborough, UK.</mods:affiliation><country xml:lang="fr" 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Research Society for Applied Natural Sciences, Ettlingen, Germany.</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Now at Department of Optics of the Atmosphere and Meteorology. Research Society for Applied Natural Sciences, Ettlingen</wicri:regionArea></affiliation></author><author><name sortKey="Von Hoyningen Uene, Wolfgang" sort="Von Hoyningen Uene, Wolfgang" uniqKey="Von Hoyningen Uene W" first="Wolfgang" last="Von Hoyningen Uene">Wolfgang Von Hoyningen Uene</name><affiliation wicri:level="1"><mods:affiliation>Institute for Remote Sensing, University of Bremen, Bremen, Germany</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Institute for Remote Sensing, University of Bremen, Bremen</wicri:regionArea></affiliation></author><author><name sortKey="Leiterer, Ulrich" sort="Leiterer, Ulrich" uniqKey="Leiterer U" first="Ulrich" last="Leiterer">Ulrich Leiterer</name><affiliation wicri:level="1"><mods:affiliation>Meteorological Observatory, German Weather Service, Lindenberg, Germany</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Meteorological Observatory, German Weather Service, Lindenberg</wicri:regionArea></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:E56D5E66F1B57EC4A80FBA5AD64DA2EE12767F47</idno><date when="2002" year="2002">2002</date><idno type="doi">10.1029/2000JD000226</idno><idno type="url">https://api.istex.fr/document/E56D5E66F1B57EC4A80FBA5AD64DA2EE12767F47/fulltext/pdf</idno><idno type="wicri:Area/Main/Corpus">001555</idno><idno type="wicri:Area/Main/Curation">001474</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Aerosol‐radiation interaction in the cloudless atmosphere during LACE 98 1. Measured and calculated broadband solar and spectral surface insolations</title><author><name sortKey="Wendisch, Manfred" sort="Wendisch, Manfred" uniqKey="Wendisch M" first="Manfred" last="Wendisch">Manfred Wendisch</name><affiliation wicri:level="1"><mods:affiliation>Institute for Tropospheric Research, Leipzig, Germany</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Institute for Tropospheric Research, Leipzig</wicri:regionArea></affiliation></author><author><name sortKey="Keil, Andreas" sort="Keil, Andreas" uniqKey="Keil A" first="Andreas" last="Keil">Andreas Keil</name><affiliation wicri:level="1"><mods:affiliation>Institute for Tropospheric Research, Leipzig, Germany</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Institute for Tropospheric Research, Leipzig</wicri:regionArea></affiliation><affiliation wicri:level="1"><mods:affiliation>Now at Met Office, Farnborough, UK.</mods:affiliation><country xml:lang="fr" wicri:curation="lc">Royaume-Uni</country><wicri:regionArea>Now at Met Office, Farnborough</wicri:regionArea></affiliation></author><author><name sortKey="Muller, Dorthe" sort="Muller, Dorthe" uniqKey="Muller D" first="Dörthe" last="Müller">Dörthe Müller</name><affiliation wicri:level="1"><mods:affiliation>Institute for Tropospheric Research, Leipzig, Germany</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Institute for Tropospheric Research, Leipzig</wicri:regionArea></affiliation></author><author><name sortKey="Wandinger, Ulla" sort="Wandinger, Ulla" uniqKey="Wandinger U" first="Ulla" last="Wandinger">Ulla Wandinger</name><affiliation wicri:level="1"><mods:affiliation>Institute for Tropospheric Research, Leipzig, Germany</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Institute for Tropospheric Research, Leipzig</wicri:regionArea></affiliation></author><author><name sortKey="Wendling, Peter" sort="Wendling, Peter" uniqKey="Wendling P" first="Peter" last="Wendling">Peter Wendling</name><affiliation wicri:level="1"><mods:affiliation>Institute for Physics of the Atmosphere, Oberpfaffenhofen, Germany</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Institute for Physics of the Atmosphere, Oberpfaffenhofen</wicri:regionArea></affiliation></author><author><name sortKey="Stifter, Armin" sort="Stifter, Armin" uniqKey="Stifter A" first="Armin" last="Stifter">Armin Stifter</name><affiliation wicri:level="1"><mods:affiliation>Institute for Physics of the Atmosphere, Oberpfaffenhofen, Germany</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Institute for Physics of the Atmosphere, Oberpfaffenhofen</wicri:regionArea></affiliation></author><author><name sortKey="Petzold, Andreas" sort="Petzold, Andreas" uniqKey="Petzold A" first="Andreas" last="Petzold">Andreas Petzold</name><affiliation wicri:level="1"><mods:affiliation>Institute for Physics of the Atmosphere, Oberpfaffenhofen, Germany</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Institute for Physics of the Atmosphere, Oberpfaffenhofen</wicri:regionArea></affiliation></author><author><name sortKey="Fiebig, Markus" sort="Fiebig, Markus" uniqKey="Fiebig M" first="Markus" last="Fiebig">Markus Fiebig</name><affiliation wicri:level="1"><mods:affiliation>Institute for Physics of the Atmosphere, Oberpfaffenhofen, Germany</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Institute for Physics of the Atmosphere, Oberpfaffenhofen</wicri:regionArea></affiliation></author><author><name sortKey="Wiegner, Matthias" sort="Wiegner, Matthias" uniqKey="Wiegner M" first="Matthias" last="Wiegner">Matthias Wiegner</name><affiliation wicri:level="1"><mods:affiliation>Meteorological Institute, University of Munich, Munich, Germany</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Meteorological Institute, University of Munich, Munich</wicri:regionArea></affiliation></author><author><name sortKey="Freudenthaler, Volker" sort="Freudenthaler, Volker" uniqKey="Freudenthaler V" first="Volker" last="Freudenthaler">Volker Freudenthaler</name><affiliation wicri:level="1"><mods:affiliation>Meteorological Institute, University of Munich, Munich, Germany</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Meteorological Institute, University of Munich, Munich</wicri:regionArea></affiliation></author><author><name sortKey="Armbruster, Wolfgang" sort="Armbruster, Wolfgang" uniqKey="Armbruster W" first="Wolfgang" last="Armbruster">Wolfgang Armbruster</name><affiliation wicri:level="1"><mods:affiliation>Institute for Space Research, Free University of Berlin, Berlin, Germany</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Institute for Space Research, Free University of Berlin, Berlin</wicri:regionArea></affiliation><affiliation wicri:level="1"><mods:affiliation>Now at Department of Optics of the Atmosphere and Meteorology. Research Society for Applied Natural Sciences, Ettlingen, Germany.</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Now at Department of Optics of the Atmosphere and Meteorology. Research Society for Applied Natural Sciences, Ettlingen</wicri:regionArea></affiliation></author><author><name sortKey="Von Hoyningen Uene, Wolfgang" sort="Von Hoyningen Uene, Wolfgang" uniqKey="Von Hoyningen Uene W" first="Wolfgang" last="Von Hoyningen Uene">Wolfgang Von Hoyningen Uene</name><affiliation wicri:level="1"><mods:affiliation>Institute for Remote Sensing, University of Bremen, Bremen, Germany</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Institute for Remote Sensing, University of Bremen, Bremen</wicri:regionArea></affiliation></author><author><name sortKey="Leiterer, Ulrich" sort="Leiterer, Ulrich" uniqKey="Leiterer U" first="Ulrich" last="Leiterer">Ulrich Leiterer</name><affiliation wicri:level="1"><mods:affiliation>Meteorological Observatory, German Weather Service, Lindenberg, Germany</mods:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Meteorological Observatory, German Weather Service, Lindenberg</wicri:regionArea></affiliation></author></analytic><monogr></monogr><series><title level="j">Journal of Geophysical Research: Atmospheres</title><title level="j" type="abbrev">J. Geophys. Res.</title><idno type="ISSN">0148-0227</idno><idno type="eISSN">2156-2202</idno><imprint><publisher>Blackwell Publishing Ltd</publisher><date type="published" when="2002-11-16">2002-11-16</date><biblScope unit="volume">107</biblScope><biblScope unit="issue">D21</biblScope><biblScope unit="page" from="LAC 6-1">LAC 6-1</biblScope><biblScope unit="page" to="LAC 6-20">LAC 6-20</biblScope></imprint><idno type="ISSN">0148-0227</idno></series><idno type="istex">E56D5E66F1B57EC4A80FBA5AD64DA2EE12767F47</idno><idno type="DOI">10.1029/2000JD000226</idno><idno type="ArticleID">2000JD000226</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0148-0227</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract">Vertical profile measurements of aerosol particle size distributions and of meteorological parameters (obtained from aircraft, radiosondes, and lidar) are used as input to a spectral radiative transfer model to calculate broadband solar and spectral surface insolations. The calculated values are compared to measured ones gathered with broadband solar pyranometers and pyrheliometers, and a fixed‐grating photodiode array spectroradiometer with 512 spectral channels between 500 and 920 nm wavelength. The measurements were obtained during the joint field campaign Lindenberg Aerosol Characterization Experiment (LACE) 98 near Berlin/Germany in the summer of 1998. Two cases (days with high and low aerosol loading, respectively) are investigated in detail. Furthermore, a measurement‐based sensitivity analysis was carried out focusing on the influence of particle composition (complex refractive index) and of microphysical and humidity growth uncertainties on the calculated surface insolations. Assuming a spectral refractive index of ammonium sulfate for the aerosol particles, on average the global component of the broadband solar surface insolations is 11–20 W m−2 (2–3%) greater than the measured values; the direct portion is 17–28 W m−2 (4–5%) higher, and its diffuse component is 6–7 W m−2 (4–10%) lower in comparison to the measurements. The measured and calculated spectral surface insolations (global portion) agree well in the central visible spectral region (500–600 nm wavelength). Toward larger wavelengths (near infrared) the calculated spectral surface insolations are increasingly higher than the measured ones.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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