Results 11 to 20 of about 106,382 (192)

A new plant chamber facility, PLUS, coupled to the atmosphere simulation chamber SAPHIR [PDF]

Atmospheric Measurement Techniques, 2016
A new PLant chamber Unit for Simulation (PLUS) for use with the atmosphere simulation chamber SAPHIR (Simulation of Atmospheric PHotochemistry In a large Reaction Chamber) has been built and characterized at the Forschungszentrum Jülich GmbH, Germany ...
T. Hohaus, U. Kuhn, S. Andres, M. Kaminski, F. Rohrer, R. Tillmann, A. Wahner, R. Wegener, Z. Yu, A. Kiendler-Scharr   +9 more
doaj   +1 more source

Secondary organic aerosol formation from hydroxyl radical oxidation and ozonolysis of monoterpenes [PDF]

Atmospheric Chemistry and Physics, 2015
Oxidation by hydroxyl radical (OH) and ozonolysis are the two major pathways of daytime biogenic volatile organic compound (BVOC) oxidation and secondary organic aerosol (SOA) formation.
D. F. Zhao, M. Kaminski, P. Schlag, H. Fuchs, I.-H. Acir, B. Bohn, R. Häseler, A. Kiendler-Scharr, F. Rohrer, R. Tillmann, M. J. Wang, R. Wegener, J. Wildt, A. Wahner, Th. F. Mentel   +14 more
doaj   +1 more source

Measurements of hydroperoxy radicals (HO₂) at atmospheric concentrations using bromide chemical ionisation mass spectrometry [PDF]

Atmospheric Measurement Techniques, 2019
Hydroxyl and hydroperoxy radicals are key species for the understanding of atmospheric oxidation processes. Their measurement is challenging due to their high reactivity; therefore, very sensitive detection methods are needed.
S. R. Albrecht, A. Novelli, A. Hofzumahaus, S. Kang, Y. Baker, T. Mentel, A. Wahner, H. Fuchs   +7 more
doaj   +1 more source

Seasonal variation in nitryl chloride and its relation to gas-phase precursors during the JULIAC campaign in Germany [PDF]

Atmospheric Chemistry and Physics, 2022
Ambient measurements of nitryl chloride (ClNO2) were performed at a rural site in Germany, covering three periods in winter, summer, and autumn 2019, as part of the JULIAC campaign (Jülich Atmospheric Chemistry Project) that aimed to understand the ...
Z. Tan, H. Fuchs, H. Fuchs, A. Hofzumahaus, W. J. Bloss, B. Bohn, C. Cho, T. Hohaus, F. Holland, C. Lakshmisha, L. Liu, P. S. Monks, A. Novelli, D. Niether, F. Rohrer, R. Tillmann, T. S. E. Valkenburg, V. Vardhan, V. Vardhan, A. Kiendler-Scharr, A. Kiendler-Scharr, A. Wahner, R. Sommariva, R. Sommariva   +23 more
doaj   +1 more source

Nitric acid scavenging by mineral and biomass burning aerosols [PDF]

, 1998
The abundance of gas phase nitric acid in the upper troposphere is overestimated by global chemistry-transport models, especially during the spring and summer seasons.
Chatfield, R B, Dibb, Jack E., Jacobson, M Z, Lin, J S, Singh, H B, Tabazadeh, A, Talbot, R., Thakur, A N, Toon, O Brian   +8 more
core   +2 more sources

Effects of NO_x and SO₂ on the secondary organic aerosol formation from photooxidation of α-pinene and limonene [PDF]

Atmospheric Chemistry and Physics, 2018
Anthropogenic emissions such as NOx and SO2 influence the biogenic secondary organic aerosol (SOA) formation, but detailed mechanisms and effects are still elusive.
D. Zhao, S. H. Schmitt, M. Wang, M. Wang, I.-H. Acir, I.-H. Acir, R. Tillmann, Z. Tan, Z. Tan, A. Novelli, H. Fuchs, I. Pullinen, I. Pullinen, R. Wegener, F. Rohrer, J. Wildt, A. Kiendler-Scharr, A. Wahner, T. F. Mentel   +18 more
doaj   +1 more source

Beryllium 7 and Lead 210 in the western hemisphere Arctic atmosphere: Observations from three recent aircraft-based sampling programs [PDF]

, 1992
Concentrations of the natural radionuclides 7Be and 210Pb were determined in aerosol samples collected in the western hemisphere Arctic during the recent NOAA Arctic Gas and Aerosol Sampling Program (AGASP 3) and NASA Global Tropospheric Experiment ...
Dibb, Jack E., Gregory, G L, Talbot, R.
core   +2 more sources

Identification of high-wind features within extratropical cyclones using a probabilistic random forest – Part 2: Climatology over Europe [PDF]

Weather and Climate Dynamics, 2023
Strong winds associated with extratropical cyclones are one of the most dangerous natural hazards in Europe. These high winds are mostly associated with five mesoscale features: the warm (conveyor belt) jet (WJ); the cold (conveyor belt) jet (CJ); cold ...
L. Eisenstein, B. Schulz, J. G. Pinto, P. Knippertz   +3 more
doaj   +1 more source

Sources and budgets for CO and O-3 in the northeastern Pacific during the spring of 2001: Results from the PHOBEA-II Experiment [PDF]

, 2003
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Bey, I., Evans, M. J., Jacob, D. J., Jaegle, L., Jaffe, D. A., Palmer, P. I., Price, H. U., Weiss-Penzias, P.   +7 more
core   +2 more sources

Impact of multiscale dynamical processes and mixing on the chemical composition of the upper troposphere and lower stratosphere during the Intercontinental Chemical Transport Experiment–North America [PDF]

, 2007
We use high-frequency in situ observations made from the DC8 to examine fine-scale tracer structure and correlations observed in the upper troposphere and lower stratosphere during INTEX-NA.
Al-Saadi, J, Avery, Melody A, Dibb, Jack E., Fairlie, T D, Pierce, R B, Sachse, G W   +5 more
core   +2 more sources