Encontrados 5 documentos, a visualizar página 1 de 1
Measurement of Aerosols and Trace Gases in the Free Troposphere at the Pico Mou...
Kramer, Louisa; Mazzoleni, Claudio; Mazzoleni, Lynn R.; Fialho, Paulo; Helmig, Detlev; Olsen, Seth C.; Owen, R. Chris; Dziobak, Michael P.European Geosciences Union (EGU), General Assembly. Viena, Austria, 07 - 12 April 2013. ; Here, we present an overview of gas and aerosol data measured at the Pico Mountain Station. The primary objective of these measurements are to enhance our knowledge of anthropogenic and biomass burning emissions from North America and their relative impact on atmospheric composition and radiative forcing in the free tropo...
Ten Years of Black Carbon Measurements in the North Atlantic at the Pico Mounta...
Kumar, Sumit; Fialho, Paulo; Mazzoleni, Lynn R.; Olsen, Seth C.; Owen, R. Chris; Helmig, Detlev; Hueber, Jacques; Dziobak, Michael P.; Kramer, Louisa45th annual Fall Meeting, AGU. San Francisco, California, 3-7 December. ; The Pico Mountain Observatory is located in the summit caldera of the Pico mountain, an inactive volcano on the Pico Island in the Azores, Portugal (38.47°N, 28.40°W, Altitude 2225m asl). The Azores are often impacted by polluted outflows from the North American continent and local sources have been shown to have a negligible influence a...
Late summer changes in burning conditions in the boreal regions and their impli...
Lapina, K.; Honrath, Richard; Owen, R. Chris; Val Martin, Maria; Hyer, E. J.; Fialho, PauloCopyright © 2008 American Geophysical Union. All Rights Reserved. ; Building emission inventories for the fires in boreal regions remains a challenging task with significant uncertainties in the methods used. In this work, we assess the impact of seasonal trends in fuel consumption and flaming/smoldering ratios on emissions of species dominated by flaming combustion (e.g., NO x ) and species dominated by smold...
Significant enhancements of nitrogen oxides, black carbon, and ozone in the Nor...
Val Martin, Maria; Honrath, Richard; Owen, R. Chris; Pfister, G.; Fialho, Paulo; Barata, FilipeCopyright © 2006 American Geophysical Union. All Rights Reserved. ; Extensive wildfires burned in northern North America during summer 2004, releasing large amounts of trace gases and aerosols into the atmosphere. Emissions from these wildfires frequently impacted the PICO-NARE station, a mountaintop site situated 6–15 days downwind from the fires in the Azores Islands. To assess the impacts of the boreal wild...
Regional and hemispheric impacts of anthropogenic and biomass burning emissions...
Honrath, Richard; Owen, R. Chris; Val Martin, Maria; Reid, J. S.; Lapina, K.; Fialho, Paulo; Dziobak, Michael P.; Kleissl, J.; Westphal, D. L.Copyright © 2004 American Geophysical Union. All Rights Reserved. ; We report summertime measurements of CO and O3 obtained during 2001–2003 at the PICO-NARE mountaintop station in the Azores. Frequent events of elevated CO mixing ratios were observed. On the basis of backward trajectories arriving in the free troposphere and global simulations of biomass burning plumes, we attribute nearly all these events to...
| Financiadores do RCAAP | |||||||
|
|
|
|
|
|
||