Results 41 to 50 of about 49,964 (180)

Investigation of the β-pinene photooxidation by OH in the atmosphere simulation chamber SAPHIR [PDF]

Atmospheric Chemistry and Physics, 2017
Besides isoprene, monoterpenes are the non-methane volatile organic compounds (VOCs) with the highest global emission rates. Due to their high reactivity towards OH, monoterpenes can dominate the radical chemistry of the atmosphere in forested areas ...
M. Kaminski, M. Kaminski, H. Fuchs, I.-H. Acir, I.-H. Acir, B. Bohn, T. Brauers, T. Brauers, H.-P. Dorn, R. Häseler, A. Hofzumahaus, X. Li, X. Li, A. Lutz, S. Nehr, S. Nehr, F. Rohrer, R. Tillmann, L. Vereecken, R. Wegener, A. Wahner   +20 more
doaj   +1 more source

A linear CO chemistry parameterization in a chemistry-transport model: evaluation and application to data assimilation [PDF]

, 2010
This paper presents an evaluation of a new linear parameterization valid for the troposphere and the stratosphere, based on a first order approximation of the carbon monoxide (CO) continuity equation. This linear scheme (hereinafter noted LINCO) has been
Massart, S., Edwards, D. P., B. Josse, El Amraoui, Laaziz, A. Piacentini, P. Ricaud, Claeyman, M., M. Claeyman, H. Teyssèdre, Cammas, J. -P., Teyssedre, H., N. J. Livesey, Josse, B., Cammas, Jean-Pierre, Livesey, N.J., Pumphrey, Hugh, El Amraoui, L., Livesey, N. J., J.-L. Attié, Piacentini, A., L. El Amraoui, D. Cariolle, D. P. Edwards, Peuch, Vincent-Henri, H. C. Pumphrey, J.-P. Cammas, Peuch, V. -H., Attié, Jean-Luc, V.-H. Peuch, Ricaud, P., Cariolle, D., Attie, J. -L., Josse, Béatrice, S. Massart, Pumphrey, H.C., Edwards, D.P.   +35 more
core   +2 more sources

Atmospheric transport and critical layer mixing in the troposphere and stratosphere [PDF]

, 2012
This thesis aims to improve the understanding of transport and critical layer mixing in the troposphere and stratosphere. A dynamical approach is taken based on potential vorticity which has long been recognised as the essential field inducing the flow ...
Smy, Louise Ann
core   +2 more sources

Tropospheric ozone and its global budgets [PDF]

, 2008
We present the chemistry-climate model UMCAM in which a relatively detailed tropospheric chemical module has been incorporated into the UK Met Office's Unified Model version 4.5. We obtain good agreements between the modelled ozone/nitrogen species and a
Zeng, Guang, Pyle, J. A., Young, P. J.
core   +4 more sources

MieAI: a neural network for calculating optical properties of internally mixed aerosol in atmospheric models

npj Climate and Atmospheric Science
Aerosols influence weather and climate by interacting with radiation through absorption and scattering. These effects heavily rely on the optical properties of aerosols, which are mainly governed by attributes such as morphology, size distribution, and ...
Pankaj Kumar, Heike Vogel, Julia Bruckert, Lisa Janina Muth, Gholam Ali Hoshyaripour   +4 more
doaj   +1 more source

Metrology of Nanoparticles

CHIMIA
In the past decades, several measurement techniques have been developed and continuously optimized to specifically analyze airborne nanoparticles. Nanoparticles have gained significant importance in fields such as air quality research, climate studies ...
Oliver F. Bischof, Heinz Burtscher, Martin Fierz   +2 more
doaj   +1 more source

Retrieval of upper tropospheric water Retrieval of upper tropospheric water Retrieval of upper tropospheric water [PDF]

, 2005
Abstract. A regression method was developed to retrieve upper tropospheric water vapor (UTWV in kg/m2) and upper tropospheric humidity (UTH in %RH) from radiances measured by the Advanced Microwave Sounding Unit (AMSU). In contrast to other UTH retrieval methods, UTH is defined as the average relative humidity between 500 and 200 hPa, not as a Jacobian
Houshangpour, A., John, V. O., Buehler, S. A.   +2 more
openaire   +2 more sources

Considerations on the dynamics of a cold spell over Greece

Meteorologische Zeitschrift, 1995
A cold spell was observed in March 1987 over Greece, which was characterised by extremely low temperatures and heavy snowfall. The dynamic and thermodynamic characteristics of this rather unusual event are investigated using ECMWF analyses.
Helena A. Flocas, Theodore S. Karacostas, Brian D. Giles, Apostolos A. Flocas   +3 more
doaj   +1 more source

Климатическая изменчивость стратосферно-тропосферных взаимодействий, наблюдаемая в последние десятилетия

Vestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2021
В данной работе показано, как изменялось взаимодействие между тропосферой и стратосферой в последние десятилетия. Также оценено влияние таких явлений, как квазидвухлетнее колебание (КДК) на данное взаимодействие.
Диденко, К.А., Ермакова, Т.С., Погорельцев, А.И., Ракушина, Е.В.   +3 more
doaj   +1 more source

Use of wind profiler in severe weather monitoring

Meteorologische Zeitschrift, 1998
A 1299 MHz wind profiler was acquired to monitor low level winds near the Hong Kong International Airport. It was found that the equipment was also capable of yielding quality data to support the study of severe weather.
K. K. Yeung
doaj   +1 more source