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The impact of solar radiation on polar mesospheric ice particle formation

Nachbar, Mario and Wilms, Henrike and Duft, Denis and Aylett, Tasha and Kitajima, Kensei and Majima, Takuya and Plane, John M. C. and Rapp, Markus and Leisner, Thomas (2019) The impact of solar radiation on polar mesospheric ice particle formation. Atmospheric Chemistry and Physics, 19 (7), pp. 4311-4322. Copernicus Publications. DOI: 10.5194/acp-19-4311-2019 ISSN 1680-7316

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Official URL: http://dx.doi.org/10.5194/acp-19-4311-2019


Mean temperatures in the polar summer mesopause can drop to 130 K. The low temperatures in combination with water vapor mixing ratios of a few parts per million give rise to the formation of ice particles. These ice particles may be observed as polar mesospheric clouds. Mesospheric ice cloud formation is believed to initiate heterogeneously on small aerosol particles (r < 2nm) composed of recondensed meteoric material, so-called meteoric smoke particles (MSPs). Recently, we investigated the ice activation and growth behavior of MSP analogues under realistic mesopause conditions. Based on these measurements we presented a new activation model which largely reduced the uncertainties in describing ice particle formation. However, this activation model neglected the possibility that MSPs heat up in the low-density mesopause due to absorption of solar and terrestrial irradiation.

Item URL in elib:https://elib.dlr.de/127066/
Document Type:Article
Title:The impact of solar radiation on polar mesospheric ice particle formation
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Nachbar, MarioKIT, KarlsruheUNSPECIFIED
Duft, DenisKIT, KarlsruheUNSPECIFIED
Aylett, TashaUniversity of Leeds, Leeds, UKUNSPECIFIED
Kitajima, KenseiKyoto University, Kyoto, JapanUNSPECIFIED
Majima, TakuyaKyoto University, Kyoto, JapanUNSPECIFIED
Plane, John M. C.University of Leeds, Leeds, UKUNSPECIFIED
Rapp, MarkusDLR, IPAhttps://orcid.org/0000-0003-1508-5900
Leisner, ThomasKIT, KarlsruheUNSPECIFIED
Journal or Publication Title:Atmospheric Chemistry and Physics
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:Yes
DOI :10.5194/acp-19-4311-2019
Page Range:pp. 4311-4322
Publisher:Copernicus Publications
Keywords:Ice Particle, mesoscheric ice cloud, solar radiation
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):Vorhaben Mittlere Atmosphäre
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Transport Meteorology
Institute of Atmospheric Physics
Deposited By: Ziegele, Brigitte
Deposited On:05 Apr 2019 07:48
Last Modified:02 May 2019 14:05

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