Secondary organic aerosol formation from hydroxyl radical oxidation and ozonolysis of monoterpenes [PDF]
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 +14 more
doaj +1 more source
Investigation of potential interferences in the detection of atmospheric ROx radicals by laser-induced fluorescence under dark conditions [PDF]
Direct detection of highly reactive, atmospheric hydroxyl radicals (OH) is widely accomplished by laser-induced fluorescence (LIF) instruments. The technique is also suitable for the indirect measurement of HO2 and RO2 peroxy radicals by chemical ...
H. Fuchs +11 more
doaj +1 more source
OH regeneration from methacrolein oxidation investigated in the atmosphere simulation chamber SAPHIR [PDF]
Hydroxyl radicals (OH) are the most important reagent for the oxidation of trace gases in the atmosphere. OH concentrations measured during recent field campaigns in isoprene-rich environments were unexpectedly large.
H. Fuchs +16 more
doaj +1 more source
Measurements of hydroperoxy radicals (HO2) at atmospheric concentrations using bromide chemical ionisation mass spectrometry [PDF]
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 +7 more
doaj +1 more source
Global Warming and Mass Extinctions Associated With Large Igneous Province Volcanism
Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
David P. G. Bond, Yadong Sun
wiley +6 more sources
A linear CO chemistry parameterization in a chemistry-transport model: evaluation and application to data assimilation [PDF]
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
Attie, J. -L. +13 more
core +5 more sources
Effects of NOx and SO2 on the secondary organic aerosol formation from photooxidation of α-pinene and limonene [PDF]
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 +18 more
doaj +1 more source
Nitric acid scavenging by mineral and biomass burning aerosols [PDF]
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 +8 more
core +2 more sources
A Climatology of Tropospheric Zonal-Mean Water Vapor Fields and Fluxes in Isentropic Coordinates [PDF]
Based on reanalysis data for the years 1980–2001 from the European Centre for Medium-Range Weather Forecasts (ERA-40 data), a climatology of tropospheric zonal-mean water vapor fields and fluxes in isentropic coordinates is presented.
O'Gorman, Paul A. +3 more
core +1 more source
Disquisitions Relating to Principles of Thermodynamic Equilibrium in Climate Modelling
We revisit the fundamental principles of thermodynamic equilibrium in relation to heat transfer processes within the Earth’s atmosphere. A knowledge of equilibrium states at ambient temperatures (T) and pressures (p) and deviations for these p-T states ...
Leslie V. Woodcock
doaj +1 more source

