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Sources of HO x and production of ozone in the upper troposphere over the United States
(Wiley-Blackwell, 1998)
The sources of HOx (OH+peroxy radicals) and the associated production of ozone at 8–12 km over the United States are examined by modeling observations of OH, HO2, NO, and other species during the SUCCESS aircraft campaign ...
Origin of tropospheric ozone at remote high northern latitudes in summer
(Wiley-Blackwell, 1996)
We quantify the tropospheric ozone budget over remote high northern latitudes in summer using chemical and meteorological measurements between 0 and 6-km made during the summer of 1990 Arctic Boundary Layer Expedition (ABLE ...
Export of reactive nitrogen from North America during summertime: Sensitivity to hydrocarbon chemistry
(Wiley-Blackwell, 1998)
The global influence on tropospheric chemistry of nitrogen oxides (NOx = NO + NO2) emitted by fossil fuel combustion may be strongly modulated by nonmethane hydrocarbon (NMHC) chemistry taking place in the continental ...
Pacific Exploratory Mission in the tropical Pacific: PEM-Tropics A, August-September 1996
(Wiley-Blackwell, 1999)
The NASA Pacific Exploratory Mission to the Pacific tropics (PEM-Tropics) is the third major field campaign of NASA's Global Tropospheric Experiment (GTE) to study the impact of human and natural processes on the chemistry ...
Sources and sinks of formic, acetic, and pyruvic acids over central Amazonia: 2. Wet season
(Wiley-Blackwell, 1990)
We have determined the gas phase concentrations of formic (HCOOH), acetic (CH3COOH), and pyruvic (CH3C(O)COOH) acids in the forest canopy, boundary layer, and free troposphere over the central Amazon Basin during the ...
Atmosphere-biosphere exchange of CO 2 and O 3 in the central Amazon Forest
(Wiley-Blackwell, 1990)
Measurements of vertical fluxes for CO2 and O3 were made at a level 10 m above the canopy of the Amazon forest during the wet season, using eddy correlation techniques. Vertical profiles of CO2 and O3 were recorded ...
A global three-dimensional model of tropospheric sulfate
(Wiley-Blackwell, 1996)
A three-dimensional model is used to simulate the global tropospheric distributions of dimethylsulfide (DMS), SO2, SO42−, and methanesulfonic acid (MSA). The model uses meteorological input from a general circulation model ...
Passive tracer transport relevant to the TRACE A experiment
(Wiley-Blackwell, 1996)
This paper explores some of the mechanisms governing the accumulation of passive tracers over the tropical southern Atlantic Ocean during the northern hemisphere fall season. There has been a pioneering observation regarding ...
Reactive nitrogen oxides and ozone above a taiga woodland
(Wiley-Blackwell, 1994)
Measurements of reactive nitrogen oxides (NOₓ and NO{sub y}) and ozone (O₃) were made in the planetary boundary layer (PBL) above a taiga woodland in northern Quebec, Canada, during June-August, 1990, as part of NASA Arctic ...
Anthropogenic and natural contributions to tropospheric sulfate: A global model analysis
(Wiley-Blackwell, 1996)
A global three-dimensional model is used to examine the export of anthropogenic sulfur from northern midlatitude continents and to assess the relative importance of anthropogenic and natural sources to sulfate levels in ...