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Schröder, F.P. und Kärcher, B. und Petzold, A. und Baumann, R. und Busen, R. und Hoell, C. und Schumann, U. (1998) Ultrafine Aerosol Particles in Aircraft Plumes: In Situ Observations. Geophysical Research Letters, 25, Seiten 2789-2792.
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Offizielle URL: http://www.agu.org/journals/gl/
Kurzfassung
Measurements of ultrafine particles in the near field of the DLR research aircraft ATTAS using low (0.02 g/kg fuel) and high (2.7g/kg) fuel sulfur contents (FSCs) are presented. Soot emissions of ∼ 10<sup>15</sup>/kg show no significant dependence on FSC. Strong evidence is found that ∼ 1/3 of the soot particles must be involved in ice nucleation in contrails, in addition to freezing of newly formed volatile particles. In the absence of contrails, numbers of volatile particles with diameters D > 5 nm reach ∼ 10<sup>17</sup>/kg for high FSC, and still reach ∼ 10<sup>16</sup>/kg for low FSC. A clear contribution of H2SO4 to volatile particle growth is observed. If growth is exclusively linked to H2SO4, the S to H2SO4 conversion efficiency increases with decreasing FSC. Depletion of ultrafine particles is observed in contrails, very likely due to scavenging by contrail ice crystals.
| elib-URL des Eintrags: | https://elib.dlr.de/8949/ | ||||||||||||||||||||||||||||||||
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| Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||||||||||||||
| Titel: | Ultrafine Aerosol Particles in Aircraft Plumes: In Situ Observations | ||||||||||||||||||||||||||||||||
| Autoren: |
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| Datum: | 1998 | ||||||||||||||||||||||||||||||||
| Erschienen in: | Geophysical Research Letters | ||||||||||||||||||||||||||||||||
| Open Access: | Ja | ||||||||||||||||||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||||||||||||||||||
| In SCOPUS: | Nein | ||||||||||||||||||||||||||||||||
| In ISI Web of Science: | Nein | ||||||||||||||||||||||||||||||||
| Band: | 25 | ||||||||||||||||||||||||||||||||
| Seitenbereich: | Seiten 2789-2792 | ||||||||||||||||||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||||||||||||||||||
| Stichwörter: | ultrafine aerosols, aircraft, particle formation | ||||||||||||||||||||||||||||||||
| HGF - Forschungsbereich: | Verkehr und Weltraum (alt) | ||||||||||||||||||||||||||||||||
| HGF - Programm: | Weltraum (alt) | ||||||||||||||||||||||||||||||||
| HGF - Programmthema: | W EO - Erdbeobachtung | ||||||||||||||||||||||||||||||||
| DLR - Schwerpunkt: | Weltraum | ||||||||||||||||||||||||||||||||
| DLR - Forschungsgebiet: | W EO - Erdbeobachtung | ||||||||||||||||||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | W - Vorhaben Atmosphären- und Klimaforschung (alt) | ||||||||||||||||||||||||||||||||
| Standort: | Oberpfaffenhofen | ||||||||||||||||||||||||||||||||
| Institute & Einrichtungen: | Institut für Physik der Atmosphäre | ||||||||||||||||||||||||||||||||
| Hinterlegt von: | Löb, Ute | ||||||||||||||||||||||||||||||||
| Hinterlegt am: | 16 Sep 2005 | ||||||||||||||||||||||||||||||||
| Letzte Änderung: | 31 Jul 2019 19:14 |
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