Search Results - "Kunasek, S. A."

WAIS Divide ice core suggests sustained changes in the atmospheric formation pathways of sulfate and nitrate since the 19th century in the extratropical Southern Hemisphere by Sofen, E. D, Alexander, B, Steig, E. J, Thiemens, M. H, Kunasek, S. A, Amos, H. M, Schauer, A. J, Hastings, M. G, Bautista, J, Jackson, T. L, Vogel, L. E, McConnell, J. R, Pasteris, D. R, Saltzman, E. S

“…The 17O excess (Δ17O = δ17O−0.52 × δ18O) of sulfate and nitrate reflects the relative importance of their different production pathways in the atmosphere. A…”
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Sulfate sources and oxidation chemistry over the past 230 years from sulfur and oxygen isotopes of sulfate in a West Antarctic ice core by Kunasek, S. A., Alexander, B., Steig, E. J., Sofen, E. D., Jackson, T. L., Thiemens, M. H., McConnell, J. R., Gleason, D. J., Amos, H. M.

“…The sulfur and oxygen isotopic composition of sulfate in polar ice cores provides information about atmospheric sulfate sources and formation pathways, which…”
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Measurements and modeling of Δ17O of nitrate in snowpits from Summit, Greenland by Kunasek, S. A., Alexander, B., Steig, E. J., Hastings, M. G., Gleason, D. J., Jarvis, J. C.

“…We quantify controls on seasonal changes of the oxygen isotope anomaly of nitrate (Δ17O(NO3−), wherein Δ17O ≈ δ17O − (0.52 × δ18O)) in snow at Summit,…”
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Quantifying atmospheric nitrate formation pathways based on a global model of the oxygen isotopic composition (Δ 17 O) of atmospheric nitrate by Alexander, B., Hastings, M. G., Allman, D. J., Dachs, J., Thornton, J. A., Kunasek, S. A.

“…The oxygen isotopic composition (Δ17O) of atmospheric nitrate is a function of the relative abundance of atmospheric oxidants (O3, ROx=OH+HO2+RO2) and the…”
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The impact of anthropogenic emissions on atmospheric sulfate production pathways, oxidants, and ice core Δ 17 O(SO 4 2– ) by Sofen, E. D., Alexander, B., Kunasek, S. A.

“…We use a global three-dimensional chemical transport model to quantify the influence of anthropogenic emissions on atmospheric sulfate production mechanisms…”
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The impact of anthropogenic emissions on atmospheric sulfate production pathways, oxidants, and ice core [delta]17O(SO42-) by Sofen, E D, Alexander, B, Kunasek, S A

“…We use a global three-dimensional chemical transport model to quantify the influence of anthropogenic emissions on atmospheric sulfate production mechanisms…”
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The impact of anthropogenic emissions on atmospheric sulfate production pathways, oxidants, and ice core Δ17O(SO42-) by S. A. Kunasek, B. Alexander, E. D. Sofen

“…We use a global three-dimensional chemical transport model to quantify the influence of anthropogenic emissions on atmospheric sulfate production mechanisms…”
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Measurements and modeling of Δ 17 O of nitrate in snowpits from Summit, Greenland by Kunasek, S. A., Alexander, B., Steig, E. J., Hastings, M. G., Gleason, D. J., Jarvis, J. C.

“…We quantify controls on seasonal changes of the oxygen isotope anomaly of nitrate (Δ 17 O(NO 3 − ), wherein Δ 17 O ≈ δ 17 O − (0.52 × δ 18 O)) in snow at…”
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The impact of anthropogenic emissions on atmospheric sulfate production pathways, oxidants, and ice core Delta super(17)O(SO sub(4) super(2-)) by Sofen, ED, Alexander, B, Kunasek, SA

“…We use a global three-dimensional chemical transport model to quantify the influence of anthropogenic emissions on atmospheric sulfate production mechanisms…”
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Measurements and modeling of D17O of nitrate in snowpits from Summit, Greenland by Kunasek, S A, Alexander, B, Steig, E J, Hastings, M G, Gleason, D J, Jarvis, J C

“…We quantify controls on seasonal changes of the oxygen isotope anomaly of nitrate (*D17O(NO3-), wherein *D17O #~ 17O - (0.52 x 18O)) in snow at Summit,…”
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Quantifying atmospheric nitrate formation pathways based on a global model of the oxygen isotopic composition ( super(17)O) of atmospheric nitrate by Alexander, B, Hastings, M G, Allman, D J, Dachs, J, Thornton, JA, Kunasek, SA

“…The oxygen isotopic composition ( super(17)O) of atmospheric nitrate is a function of the relative abundance of atmospheric oxidants (O sub(3), RO sub(x)=OH+HO…”
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