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Ozone-CO Correlations Determined by the TES Satellite Instrument in Continental Outflow Regions
(American Geophysical Union, 2006)
Collocated measurements of tropospheric ozone (O3) and carbon monoxide (CO) from the Tropospheric Emission Spectrometer (TES) aboard the EOS Aura satellite provide information on O3-CO correlations to test our understanding ...
Air mass factor formulation for spectroscopic measurements from satellites: Application to formaldehyde retrievals from the Global Ozone Monitoring Experiment
(Wiley-Blackwell, 2001)
We present a new formulation for the air mass factor (AMF) to convert slant column measurements of optically thin atmospheric species from space into total vertical columns. Because of atmospheric scattering, the AMF depends ...
Convective outflow of South Asian pollution: A global CTM simulation compared with EOS MLS observations
(Wiley-Blackwell, 2005)
A global 3-D chemical transport model is used to analyze observations of carbon monoxide (CO) and upper tropospheric clouds from the EOS Microwave Limb Sounder (MLS). MLS observations during 25 August–6 September 2004 ...
Mapping annual mean ground-level PM 2.5 concentrations using Multiangle Imaging Spectroradiometer aerosol optical thickness over the contiguous United States
(Wiley-Blackwell, 2004)
We present a simple approach to estimating ground-level fine particulate matter (PM2.5, particles smaller than 2.5 μm in diameter) concentrations by applying local scaling factors from a global atmospheric chemistry model ...
A tropospheric ozone maximum over the Middle East
(Wiley-Blackwell, 2001)
The GEOS-CHEM global 3-D model of tropospheric chemistry predicts a summertime O3 maximum over the Middle East, with mean mixing ratios in the middle and upper troposphere in excess of 80 ppbv. This model feature is ...
An improved retrieval of tropospheric nitrogen dioxide from GOME
(Wiley-Blackwell, 2002)
We present a retrieval of tropospheric nitrogen dioxide (NO2) columns from the Global Ozone Monitoring Experiment (GOME) satellite instrument that improves in several ways over previous retrievals, especially in the ...
Interpretation of TOMS observations of tropical tropospheric ozone with a global model and in situ observations
(American Geophysical Union, 2002)
We interpret the distribution of tropical tropospheric ozone columns (TTOCs) from the Total Ozone Mapping Spectrometer (TOMS) by using a global three-dimensional model of tropospheric chemistry (GEOS-CHEM) and additional ...
Transatlantic transport of pollution and its effects on surface ozone in Europe and North America
(Wiley-Blackwell, 2002)
We examine the transatlantic transport of anthropogenic ozone and its impact on surface ozone in Europe and North America by using a 5-year (1993–1997) simulation with the GEOS-CHEM global three-dimensional model of ...
Stratospheric versus pollution influences on ozone at Bermuda: Reconciling past analyses
(Wiley-Blackwell, 2002)
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 of tropospheric ozone. We use a global ...
Export of NOy from the North American boundary layer: Reconciling aircraft observations and global model budgets
(Wiley-Blackwell, 2004)
Fossil fuel combustion accounts for >50% of the global atmospheric emission of NOx, but this source is concentrated in the polluted continental boundary layer (CBL) and only a small fraction is exported as NOy (NOx and its ...