Jonathan E. Flad
National Oceanic and Atmospheric Administration
6 Papers
52 Citations
Jonathan E. Flad is an academic researcher from National Oceanic and Atmospheric Administration. The author has contributed to research in topics: Spectroscopy & Photodissociation. The author has an hindex of 5, co-authored 6 publications. Previous affiliations of Jonathan E. Flad include Earth System Research Laboratory & Cooperative Institute for Research in Environmental Sciences.
Chat about Author
Papers
The CH3CO quantum yield in the 248 nm photolysis of acetone, methyl ethyl ketone, and biacetyl
Balla Rajakumar,Balla Rajakumar,Tomasz Gierczak,Tomasz Gierczak,Jonathan E. Flad,Jonathan E. Flad,A. R. Ravishankara,James B. Burkholder +7 more
TL;DR: In this article, the authors reported measurements of the CH3CO quantum yield, Φ C H 3 CO, following the 248-nm pulsed laser photolysis of acetone (CH3C(O)CH3), methyl ethyl ketone, and biacetyl.
43
HCO quantum yields in the photolysis of HC(O)C(O)H (glyoxal) between 290 and 420 nm.
TL;DR: The present HCO quantum yield data are appropriate for use in atmospheric model calculations, and revised wavelength-dependent photolysis branching ratios for the production of 2HCO, H(2)CO + O(2), and H (2) + 2CO at atmospheric pressure are presented.
28
Visible Absorption Spectrum of the CH3CO Radical
TL;DR: The visible absorption spectrum of the acetyl radical, CH(3)CO, was measured between 490 and 660 nm at 298 K using cavity ring-down spectroscopy and agreement of the measured rate coefficients for the reaction of the absorbing species with O(2) and O(3).
25
Absorption cross sections for the Ã2A″ (0,90,0) ← 2A′ (0,01,0) band of the HCO radical
Jonathan E. Flad,Jonathan E. Flad,Steven S. Brown,James B. Burkholder,Harald Stark,Harald Stark,A. R. Ravishankara,A. R. Ravishankara,A. R. Ravishankara +8 more
TL;DR: The peak cross section of the P(8) line was determined to be (1.98 ± 0.36) × 10−18 cm2, and the intensity of the entire band was normalized to this line as mentioned in this paper.
24
Rate coefficients for the reaction of the acetyl radical, CH3CO, with Cl2 between 253 and 384 K
Tomasz Gierczak,Tomasz Gierczak,Tomasz Gierczak,Balla Rajakumar,Balla Rajakumar,Balla Rajakumar,Jonathan E. Flad,Jonathan E. Flad,James B. Burkholder +8 more
TL;DR: In this paper, first-order kinetic analysis of the CH3CO temporal profiles for [Cl2] 1 × 1014 molecule cm−3 was performed and the rate coefficients were determined.
8