Search results for "AIRBORNE OBSERVATIONS"

showing 2 items of 2 documents

Observed versus simulated mountain waves over Scandinavia – improvement of vertical winds, energy and momentum fluxes by enhanced model resolut…

2017

Abstract. Two mountain wave events, which occurred over northern Scandinavia in December 2013 are analysed by means of airborne observations and global and mesoscale numerical simulations with horizontal mesh sizes of 16, 7.2, 2.4 and 0.8 km. During both events westerly cross-mountain flow induced upward-propagating mountain waves with different wave characteristics due to differing atmospheric background conditions. While wave breaking occurred at altitudes between 25 and 30 km during the first event due to weak stratospheric winds, waves propagated to altitudes above 30 km and interfacial waves formed in the troposphere at a stratospheric intrusion layer during the second event. Global an…

Atmospheric Science010504 meteorology & atmospheric sciencesairborne observationsFlow (psychology)Mesoscale meteorologygravity waves010502 geochemistry & geophysicsAtmospheric sciences01 natural sciencesPhysics::GeophysicsTropospherelcsh:ChemistryGW-LCYCLE IPhysics::Atmospheric and Oceanic Physics0105 earth and related environmental sciencesMomentum (technical analysis)Institut für Physik der AtmosphäreLidarTurbulent diffusionVerkehrsmeteorologieBreaking wavelcsh:QC1-999WavelengthAmplitudenumerical modelinglcsh:QD1-999Geologylcsh:PhysicsAtmospheric Chemistry and Physics
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Advances in understanding mineral dust and boundary layer processes over the Sahara from Fennec aircraft observations

2015

Abstract. The Fennec climate programme aims to improve understanding of the Saharan climate system through a synergy of observations and modelling. We present a description of the Fennec airborne observations during 2011 and 2012 over the remote Sahara (Mauritania and Mali) and the advances in the understanding of mineral dust and boundary layer processes they have provided. Aircraft instrumentation aboard the UK FAAM BAe146 and French SAFIRE (Service des Avions Français Instrumentés pour la Recherche en Environnement) Falcon 20 is described, with specific focus on instrumentation specially developed for and relevant to Saharan meteorology and dust. Flight locations, aims and associated met…

Atmospheric Science010504 meteorology & atmospheric sciencesMeteorologyPlanetary boundary layerCONVECTIVE SYSTEMEnvironmental Sciences & EcologyAEROSOL OPTICAL-PROPERTIESMineral dust010502 geochemistry & geophysicsAtmospheric sciences01 natural sciencesCOARSE MODElcsh:ChemistryHaboobDust storm0201 Astronomical and Space SciencesMeteorology & Atmospheric SciencesSatellite imagerySOUTHERN MOROCCO0105 earth and related environmental sciences[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph]GBScience & TechnologyHEAT LOWAIRBORNE OBSERVATIONSRETRIEVAL PRODUCTSOzone depletionlcsh:QC1-999PARTICLE-SIZEAERONETBoundary layerlcsh:QD1-99913. Climate action[SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/ClimatologyPhysical SciencesWEST-AFRICAN MONSOONEnvironmental science0401 Atmospheric SciencesNORTH-ATLANTIC OCEANLife Sciences & Biomedicinelcsh:PhysicsEnvironmental SciencesAtmospheric Chemistry and Physics
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