On the effect of moisture on the detection of tropospheric turbulence from in situ measurements
| Autor: | Francis Dalaudier, Hubert Luce, Richard Wilson, Hiroyuki Hashiguchi, Masato Shiotani |
|---|---|
| Přispěvatelé: | TROPO - LATMOS, Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de sondages électromagnétiques de l'environnement terrestre (LSEET), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), Research Institute for Sustainable Humanosphere (RISH), Kyoto University [Kyoto], STRATO - LATMOS, Kyoto University |
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph]
Atmospheric Science Moisture 010504 meteorology & atmospheric sciences Chemistry Turbulence 010505 oceanography lcsh:TA715-787 lcsh:Earthwork. Foundations Atmospheric sciences 01 natural sciences law.invention lcsh:Environmental engineering Troposphere law 13. Climate action Potential temperature Radar lcsh:TA170-171 Adiabatic process Saturation (chemistry) Water vapor 0105 earth and related environmental sciences |
| Zdroj: | Atmospheric Measurement Techniques, Vol 6, Iss 3, Pp 697-702 (2013) Atmospheric Measurement Techniques Atmospheric Measurement Techniques, European Geosciences Union, 2013, 6 (3), pp.697-702. ⟨10.5194/amt-6-697-2013⟩ Atmospheric Measurement Techniques, 2013, 6 (3), pp.697-702. ⟨10.5194/amt-6-697-2013⟩ |
| ISSN: | 1867-8548 1867-1381 |
| Popis: | The present note addresses the detection of turbulence based on the Thorpe (1977) method applied to an atmosphere where saturation of water vapor occurs. The detection method proposed by Thorpe relies on the reordering in ascending order of a measured profile of a variable conserved through adiabatic processes (e.g. potential temperature). For saturated air, the reordering should be applied to a moist-conservative potential temperature, θm, which is analogous to potential temperature for a dry (subsaturated) atmosphere. Here, θm is estimated from the Brunt-Väisälä frequency derived by Lalas and Einaudi (1974) in a saturated atmosphere. The application to balloon data shows that the effective turbulent fraction of the troposphere can dramatically increase when saturation is taken into account. Preliminary results of comparisons with data simultaneously collected from the VHF Middle and Upper atmosphere radar (MUR, Japan) seem to give credence to the proposed approach. |
| Databáze: | OpenAIRE |
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