Now showing items 1-10 of 131
Modelling of Ozone Formation at a Rural Site in Southern Ontario
A one-dimensional time-dependent photochemical diffusion model has been used to simulate the chemical and vertical transport processes occurring at a rural location within Southern Ontario. The model output has been compared ...
Vertical column abundances and seasonal cycle of acetylene, C2H2, above the Jungfraujoch station, derived from IR solar observations
(Springer-The Netherlands, 1991)
Monthly mean total vertical column abundances of acetylene have been determined from series of infrared solar spectra recorded at the Jungfraujoch station, Switzerland, between June 1986 and April 1991. The data have been ...
Measurements of Carbon Monoxide and Nonmethane Hydrocarbons During POPCORN
(Springer Netherlands, 1998)
During the field campaign POPCORN (Photo oxidant formation by plant emitted compounds and OH radicals in North-eastern Germany) in Pennewitt (Mecklenburg-Vorpommern, Germany) in August 1994, carbon monoxide and nonmethane ...
Trace gas measurements during the oxidizing capacity of the tropospheric atmosphere campaign 1993 at Izana
As part of the Oxidizing Capacity of the Tropospheric Atmosphere (OCTA) project, an intensive measurement campaign was conducted in July/August 1993 at the high‐altitude observatory Izaña, Tenerife. Measurements of NO, ...
A Comparison of Measured OH Concentrations with Model Calculations
The influence of chemical precursors and sunlight on the atmospheric OH abundance is investigated by a comparison of locally measured tropospheric OH with model calculations. The latter are based on the gas phase reaction ...
Four-laser airborne infared spectrometer for atmospheric trace gas measurements
(Optical Society of America, 1996)
Micrometeorological measurement and source region analysis of nitrous oxide emissions from an agricultural soil
Nitrous oxide (N2O) fluxes were measured by eddy correlation during a field experiment in August 1993. The measurements took place on a harvested wheat field located in northwest Sealand (Denmark). A. tunable diode laser ...
Measurements of photolyzable halogen compounds and bromine radicals during the Polar Sunrise Experiment 1997
(Springer Verlag, 1999)
As part of the Polar Sunrise Experiment (PSE) 1997, concentrations of halogen species thought to be involved in ground level Arctic ozone depletion were made at Alert, NWT, Canada (82.5°N, 62.3°W) during the months of March ...
The Southern Ontario Oxidant Study (SONTOS): Overview and Case Studies for 1992
The southern Ontario oxidant study (SONTOS) is one of the scientific responses to the problem of ozone exceedences in the Windsor/Quebec City corridor, the strip extending from Windsor in the extreme southwest of Ontario, ...
Sensitivity of Ozone Concentrations to VOC and NOx Emissions in the Canadian Lower Fraser Valley
The SAPRC90 chemical mechanism module implemented in CALGRID is updated for the specific emissions and applications of the Lower Fraser Valley (LFV) of British Columbia, Canada. The kinetic and mechanistic parameters of ...