Search Results - "Fessenden, Julianna"

Azeotropic isotopologues by Currier, Robert P., Peery, Travis B., Herman, Michael F., Williams, Robert F., Michalczyk, Ryszard, Larson, Toti E., Labotka, Dana M., Fessenden, Julianna E., Clegg, Samuel M.

“…Isotopologues are molecular species differing only in their stable isotope composition. For example, the isotopologues of water include HOH, DOD, and HOD. The…”
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Extended megadroughts in the southwestern United States during Pleistocene interglacials by Fawcett, Peter J., Werne, Josef P., Anderson, R. Scott, Heikoop, Jeffrey M., Brown, Erik T., Berke, Melissa A., Smith, Susan J., Goff, Fraser, Donohoo-Hurley, Linda, Cisneros-Dozal, Luz M., Schouten, Stefan, Sinninghe Damsté, Jaap S., Huang, Yongsong, Toney, Jaime, Fessenden, Julianna, WoldeGabriel, Giday, Atudorei, Viorel, Geissman, John W., Allen, Craig D.

“…A history of megadroughts Droughts lasting tens of years are known to have occurred in the southwestern United States during the past two millennia, but model…”
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A shallow subsurface controlled release facility in Bozeman, Montana, USA, for testing near surface CO2 detection techniques and transport models by Spangler, Lee H., Dobeck, Laura M., Repasky, Kevin S., Nehrir, Amin R., Humphries, Seth D., Barr, Jamie L., Keith, Charlie J., Shaw, Joseph A., Rouse, Joshua H., Cunningham, Alfred B., Benson, Sally M., Oldenburg, Curtis M., Lewicki, Jennifer L., Wells, Arthur W., Diehl, J. Rodney, Strazisar, Brian R., Fessenden, Julianna E., Rahn, Thom A., Amonette, James E., Barr, Jon L., Pickles, William L., Jacobson, James D., Silver, Eli A., Male, Erin J., Rauch, Henry W., Gullickson, Kadie S., Trautz, Robert, Kharaka, Yousif, Birkholzer, Jens, Wielopolski, Lucien

“…A controlled field pilot has been developed in Bozeman, Montana, USA, to study near surface CO 2 transport and detection technologies. A slotted horizontal…”
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An Integrated Framework for Optimizing CO2 Sequestration and Enhanced Oil Recovery by Dai, Zhenxue, Middleton, Richard, Viswanathan, Hari, Fessenden-Rahn, Julianna, Bauman, Jacob, Pawar, Rajesh, Lee, Si-Yong, McPherson, Brian

“…CO2-enhanced oil recovery (CO2-EOR) is a technique for commercially producing oil from depleted reservoirs by injecting CO2 along with water. Because a large…”
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Temporal variation in delta(13)C of ecosystem respiration in the Pacific Northwest: links to moisture stress by Fessenden, Julianna E, Ehleringer, James R

“…We measured seasonal and interannual variations in delta(13)C values within the carbon reservoirs (leaves and soil) and CO(2) fluxes (soil and ecosystem…”
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Age-related variations in delta(13)C of ecosystem respiration across a coniferous forest chronosequence in the Pacific Northwest by Fessenden, Julianna E, Ehleringer, James R

“…We tested the hypothesis that forest age influences the carbon isotope ratio (delta13C) of carbon reservoirs and CO2 at local and regional levels. Carbon…”
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Canopy Carbon Gain and Water Use: Analysis of Old-Growth Conifers in the Pacific Northwest by Winner, William E., Thomas, Sean C., Berry, Joseph A., Bond, Barbara J., Cooper, Clifton E., Hinckley, Thomas M., Ehleringer, James R., Fessenden, Julianna E., Lamb, Brian, McCarthy, Sarah, McDowell, Nate G., Phillips, Nathan, Williams, Mathew

“…This report summarizes our current knowledge of leaf-level physiological processes that regulate carbon gain and water loss of the dominant tree species in an…”
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Recent Advances in Nuclear Forensic Chemistry by Straub, Mark D, Arnold, John, Fessenden, Julianna, Kiplinger, Jaqueline L

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Recent Advances in Nuclear Forensic Chemistry by Straub, Mark D., Arnold, John, Fessenden, Julianna, Kiplinger, Jaqueline L.

“…Nuclear forensics is a rapidly growing field with a widespread impact on global nonproliferation. From the beginning, nuclear forensic capabilities have been…”
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Temporal variation in ?13C of ecosystem respiration in the Pacific Northwest: links to moisture stress by Fessenden, Julianna E., Ehleringer, James R.

“…We measured seasonal and interannual variations in δ^sup 13^C values within the carbon reservoirs (leaves and soil) and CO^sub 2^ fluxes (soil and ecosystem…”
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Temporal Variation in δ13C of Ecosystem Respiration in the Pacific Northwest: Links to Moisture Stress by Fessenden, Julianna E., Ehleringer, James R.

“…We measured seasonal and interannual variations in δ13C values within the carbon reservoirs (leaves and soil) and CO₂ fluxes (soil and ecosystem respired CO₂)…”
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Response of lodgepole pine growth to CO2 degassing at Mammoth Mountain, California by Biondi, Franco, Fessenden, Julianna E.

“…We conducted dendroclimatic and stable isotope analyses of lodgepole pines (Pinus contorta) located in high-mortality sites at Mammoth Mountain (California,…”
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Quantifying uncertainty in stable isotope mixing models by Davis, Paul, Syme, James, Heikoop, Jeffrey, Fessenden-Rahn, Julianna, Perkins, George, Newman, Brent, Chrystal, Abbey E., Hagerty, Shannon B.

“…Mixing models are powerful tools for identifying biogeochemical sources and determining mixing fractions in a sample. However, identification of actual source…”
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Concentration and δD of molecular hydrogen in boreal forests: Ecosystem-scale systematics of atmospheric H2 by Rahn, Thom, Eiler, John M., Kitchen, Nami, Fessenden, Julianna E., Randerson, James T.

“…We examined the concentration and δD of atmospheric H2 in a boreal forest in interior Alaska to investigate the systematics of high latitude soil uptake at…”
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The impact of CO2 on shallow groundwater chemistry: observations at a natural analog site and implications for carbon sequestration by Keating, Elizabeth H., Fessenden, Julianna, Kanjorski, Nancy, Koning, Daniel J., Pawar, Rajesh

“…In a natural analog study of risks associated with carbon sequestration, impacts of CO 2 on shallow groundwater quality have been measured in a sandstone…”
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Rapid 18O analysis of small water and CO2 samples using a continuous-flow isotope ratio mass spectrometer by Fessenden, Julianna E., Cook, Craig S., Lott, Michael J., Ehleringer, James R.

“…High‐frequency throughput is often needed in isotopic studies in biological and medical fields. Here we report that high‐precision oxygen isotope ratio…”
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Contribution of soil respiration in tropical, temperate, and boreal forests to the 18O enrichment of atmospheric O2 by Angert, Alon, Barkan, Eugeni, Barnett, Bruce, Brugnoli, Enrico, Davidson, Eric A., Fessenden, Julianna, Maneepong, Somsak, Panapitukkul, Nipa, Randerson, James T., Savage, Kathleen, Yakir, Dan, Luz, Boaz

“…The 18O content of atmospheric O2 is an important tracer for past changes in the biosphere. Its quantitative use depends on knowledge of the discrimination…”
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Partitioning of oxygen isotopes during the aqueous solvation of nitric acid by Larson, Toti E., Perkins, George B., Williams, Robert F., Fessenden, Julianna E., Clegg, Samuel M., Currier, Robert P.

“…Mixtures of water and inorganic acids show differences in isotopic composition between the vapor and liquid phases, reportedly even at an azeotrope. A recent…”
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Assessing the strength of the monsoon during the late Pleistocene in southwestern United States by Cisneros-Dozal, Luz M., Huang, Yongsong, Heikoop, Jeffrey M., Fawcett, Peter J., Fessenden, Julianna, Anderson, R. Scott, Meyers, Philip A., Larson, Toti, Perkins, George, Toney, Jaime, Werne, Josef P., Goff, Fraser, WoldeGabriel, Giday, Allen, Craig D., Berke, Melissa A.

“…Improved predictions of drought require an understanding of natural and human-induced climate variability. Long-term records across glacial–interglacial cycles…”
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Paired analyses of oxygen isotope and elemental ratios within individual shells of benthic foraminifera genus Uvigerina by Balestra, Barbara, Orland, Ian J., Fessenden-Rahn, Julianna, Gorski, Galen, Franks, Rob, Rahn, Thom, Paytan, Adina

“…We compare different methodologies (in situ and bulk) for obtaining oxygen isotope (δ18O) and elemental ratios in the benthic foraminifera genus Uvigerina from…”
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