Aerosol‐radiation interaction in the cloudless atmosphere during LACE 98 1. Measured and calculated broadband solar and spectral surface insolations
Identifieur interne : 000945 ( Main/Exploration ); précédent : 000944; suivant : 000946Aerosol‐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.
Url:
DOI: 10.1029/2000JD000226
Affiliations:
- Allemagne, Royaume-Uni
- Bavière, Berlin, Brême (Land), District de Haute-Bavière, District de Leipzig, Saxe (Land)
- Berlin, Brême, Leipzig, Munich
- Université Louis-et-Maximilien de Munich
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xml:lang="fr">Allemagne</country><wicri:regionArea>Meteorological Institute, University of Munich, Munich</wicri:regionArea><placeName><region type="land" nuts="1">Bavière</region><region type="district" nuts="2">District de Haute-Bavière</region><settlement type="city">Munich</settlement></placeName><orgName type="university">Université Louis-et-Maximilien de Munich</orgName></affiliation></author><author><name sortKey="Armbruster, Wolfgang" sort="Armbruster, Wolfgang" uniqKey="Armbruster W" first="Wolfgang" last="Armbruster">Wolfgang Armbruster</name><affiliation wicri:level="3"><country xml:lang="fr">Allemagne</country><wicri:regionArea>Institute for Space Research, Free University of Berlin, Berlin</wicri:regionArea><placeName><region type="land" nuts="3">Berlin</region><settlement type="city">Berlin</settlement></placeName></affiliation><affiliation wicri:level="1"><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><wicri:noRegion>Ettlingen</wicri:noRegion><wicri:noRegion>Ettlingen</wicri:noRegion></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="3"><country xml:lang="fr">Allemagne</country><wicri:regionArea>Institute for Remote Sensing, University of Bremen, Bremen</wicri:regionArea><placeName><region type="land" nuts="3">Brême (Land)</region><settlement type="city">Brême</settlement></placeName></affiliation></author><author><name sortKey="Leiterer, Ulrich" sort="Leiterer, Ulrich" uniqKey="Leiterer U" first="Ulrich" last="Leiterer">Ulrich Leiterer</name><affiliation wicri:level="1"><country xml:lang="fr">Allemagne</country><wicri:regionArea>Meteorological Observatory, German Weather Service, Lindenberg</wicri:regionArea><wicri:noRegion>Lindenberg</wicri:noRegion><wicri:noRegion>Lindenberg</wicri:noRegion></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><affiliations><list><country><li>Allemagne</li><li>Royaume-Uni</li></country><region><li>Bavière</li><li>Berlin</li><li>Brême (Land)</li><li>District de Haute-Bavière</li><li>District de Leipzig</li><li>Saxe (Land)</li></region><settlement><li>Berlin</li><li>Brême</li><li>Leipzig</li><li>Munich</li></settlement><orgName><li>Université Louis-et-Maximilien de Munich</li></orgName></list><tree><country name="Allemagne"><region name="Saxe (Land)"><name sortKey="Wendisch, Manfred" sort="Wendisch, Manfred" uniqKey="Wendisch M" first="Manfred" last="Wendisch">Manfred Wendisch</name></region><name sortKey="Armbruster, Wolfgang" sort="Armbruster, Wolfgang" uniqKey="Armbruster W" first="Wolfgang" last="Armbruster">Wolfgang Armbruster</name><name sortKey="Armbruster, Wolfgang" sort="Armbruster, Wolfgang" uniqKey="Armbruster W" first="Wolfgang" last="Armbruster">Wolfgang Armbruster</name><name sortKey="Fiebig, Markus" sort="Fiebig, Markus" uniqKey="Fiebig M" first="Markus" last="Fiebig">Markus Fiebig</name><name sortKey="Freudenthaler, Volker" sort="Freudenthaler, Volker" uniqKey="Freudenthaler V" first="Volker" last="Freudenthaler">Volker Freudenthaler</name><name sortKey="Keil, Andreas" sort="Keil, Andreas" uniqKey="Keil A" first="Andreas" last="Keil">Andreas Keil</name><name sortKey="Leiterer, Ulrich" sort="Leiterer, Ulrich" uniqKey="Leiterer U" first="Ulrich" last="Leiterer">Ulrich Leiterer</name><name sortKey="Muller, Dorthe" sort="Muller, Dorthe" uniqKey="Muller D" first="Dörthe" last="Müller">Dörthe Müller</name><name sortKey="Petzold, Andreas" sort="Petzold, Andreas" uniqKey="Petzold A" first="Andreas" last="Petzold">Andreas Petzold</name><name sortKey="Stifter, Armin" sort="Stifter, Armin" uniqKey="Stifter A" first="Armin" last="Stifter">Armin Stifter</name><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><name sortKey="Wandinger, Ulla" sort="Wandinger, Ulla" uniqKey="Wandinger U" first="Ulla" last="Wandinger">Ulla Wandinger</name><name sortKey="Wendling, Peter" sort="Wendling, Peter" uniqKey="Wendling P" first="Peter" last="Wendling">Peter Wendling</name><name sortKey="Wiegner, Matthias" sort="Wiegner, Matthias" uniqKey="Wiegner M" first="Matthias" last="Wiegner">Matthias Wiegner</name></country><country name="Royaume-Uni"><noRegion><name sortKey="Keil, Andreas" sort="Keil, Andreas" uniqKey="Keil A" first="Andreas" last="Keil">Andreas Keil</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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