• Publications
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The impact of transpacific transport of mineral dust in the United States
Abstract We use a global chemical transport model (GEOS-Chem) to estimate the impact of transpacific transport of mineral dust on aerosol concentrations in North America during 2001. We haveExpand
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Variability in surface ozone background over the United States: Implications for air quality policy
average) may be unattainable. We show that a 3-D global model of tropospheric chemistry reproduces much of the observed variability in U.S. surface O3 concentrations, including the springtime high-O3Expand
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Indonesian wildfires of 1997: Impact on tropospheric chemistry
Reference LMCA-ARTICLE-2006-016doi:10.1029/2002JD003195View record in Web of Science Record created on 2006-06-01, modified on 2016-08-08
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Transpacific Transport of Asian Anthropogenic Aerosols and its Impact on Surface Air Quality in the United States
[1] We use satellite (MODIS) observations of aerosol optical depths (AODs) over the North Pacific, together with surface aerosol measurements at a network of remote U.S. sites (IMPROVE), to improveExpand
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Impact of mineral dust on nitrate, sulfate, and ozone in transpacific Asian pollution plumes
We use a 3-D global chemical transport model (GEOS-Chem) to interpret aircraft observations of nitrate and sulfate partitioning in transpacific dust plumes during the INTEX-B campaign of April-MayExpand
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Increase in upper tropospheric and lower stratospheric aerosol levels and its potential connection with Asian pollution
Satellite observations have shown that the Asian Summer Monsoon strongly influences the upper troposphere and lower stratosphere (UTLS) aerosol morphology through its role in the formation of theExpand
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A climatology of stratospheric polar vortices and anticyclones
[1] United Kingdom Meteorological Office global analyses from 1991 to 2001 are used to create a global climatology of stratospheric polar vortices and anticyclones. New methodologies are developedExpand
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Stratospheric versus pollution influences on ozone at Bermuda: Reconciling past analyses
[1] Conflicting interpretations of the spring ozone maximum observed at Bermuda (32°N, 65°W) have fueled the debate on stratospheric influence versus tropospheric production as sources ofExpand
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Trans‐Pacific transport of Saharan dust to western North America: A case study
[1] The first documented case of long-range transport of Saharan dust over a pathway spanning Asia and the Pacific to western North America is described. Crustal material generated by North AfricanExpand
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Dispersion of the Nabro volcanic plume and its relation to the Asian summer monsoon
Abstract. We use nighttime measurements from the Cloud Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) satellite, together with a Lagrangian trajectory model, to study theExpand
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