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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 ...
On the origin of tropospheric ozone and NOx over the tropical South Pacific
(Wiley-Blackwell, 1999)
The budgets of ozone and nitrogen oxides (NOx = NO + NO2) in the tropical South Pacific troposphere are analyzed by photochemical point modeling of aircraft observations at 0–12 km altitude from the Pacific Exploratory ...
Concentrations and snow-atmosphere fluxes of reactive nitrogen at Summit, Greenland
(Wiley-Blackwell, 1999)
Concentrations and fluxes of NOy (total reactive nitrogen), ozone concentrations and fluxes of sensible heat, water vapor, and momentum were measured from May 1 to July 20, 1995 at Summit, Greenland. Median NOy concentrations ...
Convective injection and photochemical decay of peroxides in the tropical upper troposphere: Methyl iodide as a tracer of marine convection
(Wiley-Blackwell, 1999)
The convective injection and subsequent fate of the peroxides H2O2 and CH3OOH in the upper troposphere is investigated using aircraft observations from the NASA Pacific Exploratory Mission-Tropics A (PEM-Tropics A) over ...
Effect of rising Asian emissions on surface ozone in the United States
(Wiley-Blackwell, 1999)
The effect of increasing fossil fuel combustion in eastern Asia on surface O3 air pollution in the United States is examined with a global three-dimensional tropospheric chemistry model. Tripling of Asian anthropogenic ...
Reactive nitrogen budget during the NASA SONEX Mission
(Wiley-Blackwell, 1999)
The SASS Ozone and Nitrogen Oxides Experiment (SONEX) over the North Atlantic during October/November 1997 offered an excellent opportunity to examine the budget of reactive nitrogen in the upper troposphere (8–12 km ...
Global impact of fossil fuel combustion on atmospheric NOx
(Wiley-Blackwell, 1999)
Fossil fuel combustion is the largest global source of NOx to the troposphere. This source is concentrated in polluted continental boundary layers, and the extent to which it impacts tropospheric chemistry on a global scale ...
Tropospheric sulfur simulation and sulfate direct radiative forcing in the Goddard Institute for Space Studies general circulation model
(Wiley-Blackwell, 1999)
Global simulations of tropospheric sulfur are performed in the Goddard Institute for Space Studies (GISS) general circulation model (GCM) and used to calculate anthropogenic sulfate direct radiative forcing. Prognostic ...
OH and HO 2 chemistry in the North Atlantic free troposphere
(Wiley-Blackwell, 1999)
Interactions between atmospheric hydrogen oxides and aircraft nitrogen oxides determine the impact of aircraft exhaust on atmospheric chemistry. To study these interactions, the Subsonic Assessment: Ozone and Nitrogen Oxide ...
Ozone production in the upper troposphere and the influence of aircraft during SONEX: approach of NO x -saturated conditions
(Wiley-Blackwell, 1999)
During October/November 1997, simultaneous observations of NO, HO2 and other species were obtained as part of the SONEX campaign in the upper troposphere. We use these observations, over the North Atlantic (40–60°N), to ...