Unexpected Epoxide Formation in the Gas-Phase Photooxidation of Isoprene (2009)
Paulot, Fabien, Crounse, John D., Kjaergaard, Henrik G., Kuerten, Adreas, St. Clair, Jason M., Seinfeld, John H., ...
Emissions of nonmethane hydrocarbon compounds to the atmosphere from the biosphere exceed those from anthropogenic activity. Isoprene, a five-carbon diene, contributes more than 40% of these...
Chan, Arthur W. H., Galloway, Melissa M., Kwan, Allan J., Chhabra, Puneet S., Keutsch, Frank N., Wennberg, Paul O., ...
2-Methyl-3-buten-2-ol (MBO) is an important biogenic hydrocarbon emitted in large quantities by pine forests. Atmospheric photooxidation of MBO is known to lead to oxygenated compounds, such as...
Garden, Anna L., Paulot, Fabien, Crounse, John D., Maxwell-Cameron, Isobel J., Wennberg, Paul O., Kjaergaard, Henrik G.
We have calculated relative energies and dipole moments of the stable conformers of nitrous acid, ethanol, ethylene glycol and propanone nitrate using a range of ab initio methods and basis sets. We...
Measured HDO/H 2O ratios across the tropical tropopause (2008)
Zhiming Kuang, Geoffrey C. Toon, Paul O. Wennberg, Yuk L. Yung
[1] We present the first simultaneous measurements of HDO and H2O in the tropical upper troposphere (UT) and lower stratosphere (LS) as derived from infrared solar absorption spectra acquired by the...
Matthews, Jamie, Fry, Julie L., Roehl, Coleen M., Wennberg, Paul O., Sinha, Amitabha
The vibrational overtone induced unimolecular dissociation of HMHP (HOCH2OOH) and HMHP-d2 (HOCD2OOH) into OH and HOCH2O (HOCD2O) fragments is investigated in the region of the 4nuOH and 5nuOH bands....
SCIAMACHY and FTS CO2 retrievals using the OCO retrieval algorithm (2008)
Boesch, Hartmut, Buchwitz, M., Sen, Bhaswar, Toon, Geoffrey C., Washenfelder, Rebecca A., Wennberg, Paul O.
The Orbiting Carbon Observatory (OCO) mission will make the first global, space-based measurements of atmospheric C02 with the precision and coverage needed to characterize C02 sources and sinks on...
An atmospheric perspective on North American carbon dioxide exchange: CarbonTracker (2007)
Peters, Wouter, Jacobson, Andrew R., Sweeney, Colm, Andrews, Arlyn E., Conway, Thomas J., Massarle, Kenneth, ...
We present an estimate of net CO2 exchange between the terrestrial biosphere and the atmosphere across North America for every week in the period 2000 through 2005. This estimate is derived from a...
On the stratospheric chemistry of hydrogen cyanide (2007)
Kleinbohl, Armin, Toon, Geoffrey C., Sen, Bhaswar, Blavier, Jean-Francois L., Weisenstein, Debra K., Strekowski, Rafal S., ...
HCN profiles measured by solar occultation spectrometry during 10 balloon flights of the JPL MkIV instrument are presented. The HCN profiles reveal a compact correlation with stratospheric tracers....
Keppel-Aleka, Gretchen, Toon, Geoffrey C., Wennberg, Paul O., Deutscher, Nicholas M.
We present a method to reduce the impact of source brightness fluctuations (SBFs) on spectra recorded by Fourier-transform spectrometry (FTS). Interferograms are recorded without AC coupling of the...
Infrared measurements of atmospheric CH3CN (2006)
Kleinböhl, Armin, Toon, Geoffrey C., Bhaswar, Sen, Blavier, Jean--Francois, Weisenstein, Debra K., Wennberg, Paul O.
For the first time CH3CN has been measured in the Earth’s atmosphere by means of infrared remote sensing. Vertical profiles of volume mixing ratio were retrieved from 12 solar occultation...
Cis-cis and trans-perp HOONO: Action spectroscopy and isomerization kinetics (2004)
Fry, Juliane L., Nizkorodov, Sergey A., Okumura, Mitchio, Roehl, Coleen M., Francisco, Joseph S., Wennberg, Paul O.
The weakly bound HOONO product of the OH + NO2 + M reaction is studied using the vibrational predissociation that follows excitation of the first OH overtone (2nu1). We observe formation of both...
ACTION SPECTROSCOPY OF HOONO (2003)
Fry, Juliane L., Roehl, Coleen M., Okumura, Mitchio, Wennberg, Paul O., Nizkorodov, Sergey A.
Author Institution: Department of Chemistry and Chemical Engineering and Department of Geology and Planetary Sciences, California Institute of Technology; Department of Chemistry, University of...
Radicals In The, Lyatt Jaegl, Daniel J. Jacob, William H. Brune, Paul O. Wennberg
. Aircraft observations from three recent missions (STRAT, SUCCESS, SONEX) are synthesized into a theoretical analysis of the factors controlling the concentrations of HO x radicals (HO x = OH +...
Chemistry of HO radicals in the upper troposphere (2000)
Lyatt Jaegleh, Daniel J. Jacob, William H. Brune, Paul O. Wennberg
Aircraft observations from three recent missions (STRAT, SUCCESS, SONEX) are synthesized into a theoretical analysis of the factors controlling the concentrations of HO radicals (HO "OH#peroxy)...
An atmospheric perspective on North American carbon dioxide exchange: CarbonTracker
Peters, Wouter, Jacobson, Andrew R., Sweeney, Colm, Andrews, Arlyn E., Conway, Thomas J., Masarie, Kenneth, ...
We present an estimate of net CO2 exchange between the terrestrial biosphere and the atmosphere across North America for every week in the period 2000 through 2005. This estimate is derived from a...