Search
Now showing items 1-10 of 10
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 ...
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 ...
Budgets of reactive nitrogen, hydrocarbons, and ozone over the Amazon forest during the wet season
(Wiley-Blackwell, 1990)
The atmospheric composition over the Amazon forest during the wet season is simulated with a onedimensional photochemical model for the planetary boundary layer (PBL) extending from the ground to 2000‐m altitude. The model ...
Atmospheric chemistry in the Arctic and subarctic: Influence of natural fires, industrial emissions, and stratospheric inputs
(Wiley-Blackwell, 1992)
Haze layers with perturbed concentrations of trace gases, believed to originate from tundra and forest wild fires, were observed over extensive areas of Alaska and Canada in 1988. Enhancements of CH, CH, CH, CH, and CH ...
Summertime photochemistry of the troposphere at high northern latitudes
(Wiley-Blackwell, 1992)
The budgets of O, NO (NO+NO), reactive nitrogen (NO), and acetic acid in the 0–6 km column over western Alaska in summer are examined by photochemical modeling of aircraft and ground‐based measurements from the Arctic ...
Micrometeorological measurements of CH 4 and CO 2 exchange between the atmosphere and subarctic tundra
(Wiley-Blackwell, 1992)
Exchanges of methane and carbon dioxide between the atmosphere and the Arctic tundra were measured continuously near Bethel, Alaska (61°05.41'N 162°00.92'W), for 5 weeks during July and August 1988. Fluxes were obtained ...
The Arctic Boundary Layer Expedition (ABLE 3A): July–August 1988
(Wiley-Blackwell, 1992)
The Arctic Boundary Layer Expedition (ABLE 3A) used measurements from ground, aircraft, and satellite platforms to characterize the chemistry and dynamics of the lower atmosphere over Arctic and sub-Arctic regions of North ...
Deposition of ozone to tundra
(Wiley-Blackwell, 1992)
Vertical turbulent fluxes of O were measured by eddy correlation from a 12‐m high tower erected over mixed tundra terrain (dry upland tundra, wet meadow tundra, and small lakes) in western Alaska during the Arctic Boundary ...
Factors regulating ozone over the United States and its export to the global atmosphere
(Wiley-Blackwell, 1993)
The factors regulating summertime O over the United States and its export to the global atmosphere are examined with a 3‐month simulation using a continental scale, three‐dimensional photochemical model. It is found that ...
Harvard Forest regional-scale air mass composition by Patterns in Atmospheric Transport History (PATH)
(Wiley-Blackwell, 1998)
We calculated 4 years (1990–1993) of back trajectories arriving at Harvard Forest and used them to define patterns in atmospheric transport history. This information was used to assess the degree to which regional-scale ...