Dehydration potential of ultrathin clouds at the tropical tropopause (Articolo in rivista)

Type
Label
  • Dehydration potential of ultrathin clouds at the tropical tropopause (Articolo in rivista) (literal)
Anno
  • 2003-01-01T00:00:00+01:00 (literal)
Alternative label
  • Luo, B. P., Th. Peter, H. Wernli, S. Fueglistaler, M. Wirth, C. Kiemle, H. Flentje, V. A. Yushkov, V. Khattatov, V. Rudakov, A. Thomas, S. Borrmann, G. Toci, P. Mazzinghi, J. Beuermann, C. Schiller, F. Cairo, G. DiDonfrancesco, A. Adriani, C. M. Volk, J. (2003)
    Dehydration potential of ultrathin clouds at the tropical tropopause
    in Geophysical research letters
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Luo, B. P., Th. Peter, H. Wernli, S. Fueglistaler, M. Wirth, C. Kiemle, H. Flentje, V. A. Yushkov, V. Khattatov, V. Rudakov, A. Thomas, S. Borrmann, G. Toci, P. Mazzinghi, J. Beuermann, C. Schiller, F. Cairo, G. DiDonfrancesco, A. Adriani, C. M. Volk, J. (literal)
Pagina inizio
  • 1557 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 30 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Istituto di Fisica Applicata \"Nello Carrara\",Firenze, Italy Institute for Atmospheric and Climate Science, Swiss Federal Institute of Technology, Zurich, Switzerland Institute for Atmospheric Physics, Deutches Zentrum für Luft- und Raumfahrt, Oberpfaffenhofen, Germany Central Aerological Observatory, Moscow, Russia Institute for Atmospheric Physics, University of Mainz, Mainz, Germany Institute for Atmospheric Physics, University of Mainz, Mainz, Germany Quantum Electronics Institute, Istituto di Elettronica Quantistica, Consiglio Nazionale delle Ricerche, Florence, Italy National Institute of Applied Optics, Florence, Italy Institute I: Stratosphere, Forschungszentrum Jülich, Jülich, Germany Istituto di Fisica dell'Atmosfera, Consiglio Nazionale delle Ricerche, Rome, Italy Ente per le Nuove Tecnologie, l'Energia e l'Ambiente-Casaccia, Rome, Italy Institut für Meteorologie und Geophysik, University of Frankfurt, Frankfurt, Germany Institute of Applied Environmental Research, Stockholm University, Stockholm, Sweden Department of Meteorology, Stockholm University, Stockholm, Sweden Observatoire Cantonal, Neuchâtel, Switzerland Environmental Science Department, Lancaster University, Lancaster, UK School of the Environment, University of Leeds, Leeds, UK Institute of Meteorology, University of Leipzig, Leipzig, Germany Istituto di Ricerca Onde Elettromagnetiche, Consiglio Nazionale delle Ricerche “Nello Carrara”, Firenze, Italy (literal)
Titolo
  • Dehydration potential of ultrathin clouds at the tropical tropopause (literal)
Abstract
  • We report on the first simultaneous in situ and remote measurements of subvisible cirrus in the uppermost tropical troposphere. The observed cirrus, called UTTCs (ultrathin tropical tropopause clouds), are the geometrically (200–300 m) and optically (Ä=10^-4) thinnest large-scale clouds ever sampled (=10^5 km^22). UTTCs consist of only a few ice particles per liter with mean radius =5 micromm, containing only 1–5 % of the total water. Yet, brief adiabatic cooling events only 1–2 K below mean ambient temperature destabilize UTTCs, leading to large sedimenting particles (r = 5 microm). Due to their extreme altitude above 17 km and low particle number density, UTTCs may efficiently dehydrate air during its last encounter with the ice phase before entering the stratosphere. (literal)
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