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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 ...
Experimental evidence for the importance of convected methylhydroperoxide as a source of hydrogen oxide (HO x ) radicals in the tropical upper troposphere
(Wiley-Blackwell, 2001)
Concurrent measurements of OH, HO2, H2O2, and CH3OOH concentrations were made during an aircraft flight over the tropical South Pacific that followed a back-and-forth pattern at constant 10 km altitude for 4 hours. One end ...
Uncertainty in preindustrial abundance of tropospheric ozone: Implications for radiative forcing calculations
(Wiley-Blackwell, 2001)
Recent model calculations of the global mean radiative forcing from tropospheric ozone since preindustrial times fall in a relatively narrow range, from 0.3 to 0.5 W m−2. These calculations use preindustrial ozone fields ...
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 ...
Asian chemical outflow to the Pacific in spring: Origins, pathways, and budgets
(Wiley-Blackwell, 2001)
We analyze the Asian outflow of CO, ozone, and nitrogen oxides (NOx) to the Pacific in spring by using the GEOS-CHEM global three-dimensional model of tropospheric chemistry and simulating the Pacific Exploratory Mission-West ...
Global modeling of tropospheric chemistry with assimilated meteorology: Model description and evaluation
(Wiley-Blackwell, 2001)
We present a first description and evaluation of GEOS-CHEM, a global threedimensional (3-D) model of tropospheric chemistry driven by assimilated meteorological observations from the Goddard Earth Observing System (GEOS) ...
General circulation model assessment of direct radiative forcing by the sulfate-nitrate-ammonium-water inorganic aerosol system
(Wiley-Blackwell, 2001)
An on-line simulation of aerosol sulfate, nitrate, ammonium, and water in the Goddard Institute for Space Studies general circulation model (GCM II-prime) has been used to estimate direct aerosol radiative forcing for the ...
Continental sources, transoceanic transport, and interhemispheric exchange of carbon monoxide over the Pacific
(Wiley-Blackwell, 2001)
The Pacific Exploratory Mission to the Tropics phase B (PEM-Tropics B) aircraft campaign in March-April 1999 surveyed the chemical composition of the Pacific atmosphere from 35°N to 35°S and up to 12 km altitude. We use ...
Constraints from 210 Pb and 7 Be on wet deposition and transport in a global three-dimensional chemical tracer model driven by assimilated meteorological fields
(Wiley-Blackwell, 2001)
The atmospheric distributions of the aerosol tracers 210Pb and 7Be are simulated with a global three-dimensional model driven by assimilated meteorological observations for 1991–1996 from the NASA Goddard Earth Observing ...