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Instantaneous fluctuations of temperature and moisture in the upper troposphere and tropopause region. Part 1: Probability densities and their variability

Gierens, Klaus Martin and Kohlhepp, Regina and Dotzek, Nikolai and Smit, Herman G.J. (2007) Instantaneous fluctuations of temperature and moisture in the upper troposphere and tropopause region. Part 1: Probability densities and their variability. Meteorologische Zeitschrift, 16 (2), pp. 221-231. DOI: 10.1127/0941-2948/2007/0197.

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Abstract

Using nine years (1995--2003) of MOZAIC temperature and humidity data, we analyse the statistics of instantaneous fluctuations of temperature, relative and absolute humidity with various spatial resolutions. We determine the probability density functions (p.d.f.s), their low order moments up to kurtosis, and study how these quantities vary with spatial resolution and with the background mean relative humidity. Seasonal and geographical variations are considered. Bivariate distributions of joint fluctuations of temperature and relative humidity are presented as well. These investigations are thought to provide an observational basis for the validation of statistical cloud schemes for large--scale models. For instance, we can show that temperature fluctuations cannot be neglected in such a scheme and that the bivariate distributions of simultaneous fluctuations of temperature and humidity have to be taken into account.

Document Type:Article
Title:Instantaneous fluctuations of temperature and moisture in the upper troposphere and tropopause region. Part 1: Probability densities and their variability
Authors:
AuthorsInstitution or Email of Authors
Gierens, Klaus MartinUNSPECIFIED
Kohlhepp, ReginaUNSPECIFIED
Dotzek, NikolaiUNSPECIFIED
Smit, Herman G.J.FZ Jülich
Date:2007
Journal or Publication Title:Meteorologische Zeitschrift
Volume:16
DOI:10.1127/0941-2948/2007/0197
Page Range:pp. 221-231
Status:Published
Keywords:Upper troposphere, temperature, humidity, fluctuations
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Projekt Partikel und Zirren II (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics
Institute of Atmospheric Physics > Atmospheric Dynamics
Deposited By: Dr.rer.nat. Klaus Martin Gierens
Deposited On:11 May 2007
Last Modified:12 Dec 2013 20:24

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