Dr. Daniel Obrist

Research Professor Atmospheric Biogeoscience
44616e69656c2e4f6272697374406472692e656475
775-674-7008
Mercury, Pollutants, Surface-atmosphere exchange, Biogeochemistry, Atmospheric Chemistry

Ongoing and Recent Research, and Lab News

 

Professional Interests

My research interests include atmospheric chemistry, transport, and biogeochemistry of pollutants and quantification of surface exchange processes of atmospheric constituents between soils, plants, and the atmosphere. A special emphasis includes cycling of mercury in the environment and how global change and disturbances affect these processes. Current research projects include (i) systematic quantification of mercury loads in forest across the United States to assess atmospheric loadings sequestered in terrestrial systems; (ii) study of biogeochemical processes of mercury sequestered in soils and litter to assess it’s fate during organic carbon decomposition; (iii) assessment of long-range transport of atmospheric pollutants (e.g., Asian pollution events) and tropospheric oxidation of mercury at DRI’s high-elevation research Station, Storm Peak Laboratory in the Rocky Mountains; (iv) development of a novel real-time sensor based on Cavity-Ring-Down spectroscopy to measure atmospheric mercury concentrations; and (v) study of mercury depletion events in the halogen-rich atmosphere at the Dead Sea, Israel to determine oxidation pathways and kinetics for mercury oxidation in temperate areas. Other interests include effects of wildfires and global change (e.g., elevated CO2, increasing tropospheric ozone) on hydrology and carbon and nutrient cycling processes in terrestrial ecosystems.

Education

DegreeYearInstitutionArea
Ph.D. 2002 University of Nevada, Reno Hydrogeology
M.Sc. 1998 University of Basel, Switzerland Plant Ecophysiology

Professional Experience

DatesExperience
2013 - present Research Professor, Division of Atmospheric Sciences, Desert Research Institute, Reno, NV
2009-2013 Associate Research Professor, Division of Atmospheric Sciences, Desert Research Institute, Reno, NV
2007-present Faculty Member, Graduate Programs: Atmospheric Sciences; Hydrologic Sciences; Environmental Sciences and Health, University of Nevada, Reno, NV
2007-2009 Assistant Research Professor, Division of Atmospheric Sciences, Desert Research Institute, Reno, NV
2006-2007 Post-Doctoral Research Associate, Division of Atmospheric Sciences, Desert Research Institute, Reno NV
2003-2005 Postdoctoral Research Associate, Institute of Environmental Geosciences, University of
Basel, Switzerland
2003 Postdoctoral Researcher, Department of Environmental and Resource Sciences,
University of Nevada, Reno
1999-2002 Research Assistant, Division of Earth and Ecosystem Sciences, Desert Research
Institute, Reno
1997-1998 Research Assistant, Department of Integrative Biology, University of Basel, Switzerland

Honors and Awards

2010      Nevada System of Higher Education (NSHE) Board of Regents; Rising Researcher Award
2009   Wagner Medal of Excellence for DRI Scholars in the Early Stages of Career Development
2003   Best Dissertation Award 2002/2003, Hydrologic Sciences Program, University of Nevada, Reno
1999-2002   Three Outstanding Student Awards: Mackay School of Mines; University of Nevada, Reno; Desert Research Institute (DRI).
2000   Nevada Medal Research Fellowship 2000 – Award to recognize achievements of DRI graduate students
2000   Colin Warden Memorial Award – The endowment recognizes outstanding graduate students

Professional Service

2014   Chair, Special Session, American Geophysical Union Fall Meeting, San Francisco. “Atmosphere-surface Exchangeable Pollutants: Emissions, Environmental Processing, Governance, and Perturbations related to Global Change.” with J. Perlinger, S. Wu, Michigan Technological University.
2013-present   Editor, Biogeosciences; Associate Editor, Elementa
2013   Chair, Special Sessions, 11th International Conference on Mercury as a Global Pollutant, Edinburgh, Scotland. “The role of redox transfor-mations in controlling Hg mobility in terrestrial and aquatic environments (with A. Poulain, University of Ottawa); “Defining ‘natural’ and ‘anthropogenic’ mercury impacts.” with E. Sunderland, H. Amos, Harvard Universi
2008 - Present      Member, DRI Promotions Committee; DRI Faculty Senate; DRI Sabbatical Leave Committee; DRI Campus Environment Committee; Division of Atmospheric Sciences Advisory Group
2006  

Chair, Special Session: “Mercury exchange in terrestrial systems,” 8th International Conference on Mercury as a Global Pollutant, Madison, WI, with M. Gustin, University of Nevada, Reno).

Co-Chair, Special session: “Hg exchange in terrestrial systems”, International Conference on Mercury as a Global Pollutant, Madison, WI.

2003 - Present   Advisor/Co-advisor/Committee member of graduate students and post-doctoral fellows:
  • Postdoctoral Fellows: Dr. Yannick Agnan; Dr. Christopher Moore; Dr. X. Faïn (Post-doctoral).
  • Graduate Students: C. Hedge, M. McDaniel, R. David, B. Trustman, C. Pearson, A. Pierce, A. Pokharel, S. Vadwalas, A. Millhollen, G. Castillo (all University of Nevada, Reno); O. Hararuk (University of Oklahoma, Norman); R. Teisserenc (Université du Québéc à Montréal); J. Fritsche (University of Basel, Switzerland).
  • Visiting students: Dean Howards, Macquarie University, Australia; Steven Darby, University College Cork, Ireland; Théo Le Dantec, ENSAT Toulouse; Y. Zhang (East China University of Science and Technology, Shanghai); Roger Schürmann (University of Basel).
  • Undergraduate and High School Students: Cory Berger, Carson Berger (both Sparks High School); Q. Campbell, J. P. Ponco de Leo (both Reno High School); So Lee, Johnny Dagget (both University,  of Nevada, Reno); L. Arnone (Swarthmore College); Gabriel Marty (Polytech’ Grenoble).
2001 - Present   Reviewer for:
  • Canadian Mercury Science Assessment, Environment Canada.
  • Analytica Chimica Acta; Atmospheric Environment; Atmospheric Chemistry and Physic; Biogeochemistry; Chemosphere; Environmental Science and Technology; Geophysical Research Letters; Global Change Biology; Journal of Arid Environments; Journal of Geophysical Research; Journal of Rangeland Ecology & Management; Journal of Soils and Sediments; New Phytologist; Soil Science Society of America Journal.
  • U.S. National Science Foundation; L'Agence Nationale de la Recherche, France; Swiss National Science Foundation.

Professional Activities

  • Faculty Member: Graduate Programs of Atmospheric Sciences, Hydrologic Sciences, Environmental Health and Science, University of Nevada, Reno.
  • Advisor/Co-advisor/Committee member of graduate students: A. Pierce, A. Pokharel, S. Vadwalas, A. Millhollen, G. Castillo, University of Nevada, Reno; O. Hararuk, University of Oklahoma, Norman; R. Teisserenc, Université du Québéc à Montréal: J. Fritsche; University of Basel, Switzerland).
  • Course teaching at the University of Nevada Reno (ATMS 792: Hydrometeorology), University of Basel, Switzerland (Introduction to Hydrology; Co-Lecturer and field instructor of Soil Science, Environmental Sciences, and Soil Remediation)
  • Peer-review of manuscripts for Analytica Chimica Acta, Atmospheric Environment, Atmospheric Chemistry and Physics, Biogeochemistry, Chemosphere, Environmental Science and Technology, Geophysical Research Letters, Global Change Biology, Journal of Arid Environments, Journal of Geophysical Research, Journal of Rangeland Ecology & Management, New Phytologist; Review of National Science Foundation proposal (Major Research Instrumentation , Atmospheric Science).

Publications & Presentations

2016

Adhikari, D., Zhao, Q., Xu, S., Mejia, J., Huang, R., Patel, A., Sumaila, S., Agnan, Y., Hedge, C. L., Dynes, J. J., McBeth, J., Poulson, S., Tang, Y., Kersting, A. B., Gu, B., Obrist, D., Roden, E. E., Yang, Y. (2016). Systematic Investigation of the Biogeochemical Stability of Iron Oxide-Bound Organic Carbon: Linking Redox Cycles and Carbon Persistence, DOE ESS-PI Meeting: Potomac, MD
Agnan, Y., Edwards, G., Obrist, D. (2016). Methane Emissions Throughout the Year in Arctic Tundra, Northern Alaska, Goldschmidt Conference: Yokohama, Japan, June 26, 2016-July 1, 2016
Agnan, Y., Le Dantec, T., Moore, C. W., Edwards, G., Obrist, D. (2016). New constraints on terrestrial surface-atmosphere fluxes of gaseous elemental mercury using a global database, Environ. Sci. Technol., 50, (2), 507-524
Eagles-Smith, C., Wiener, J., Eckley, C. S., Willacker, J. J., Evers, D. C., Marvin-DiPasquale, M., Obrist, D., Fleck, J. A., Aiken, G. R., Lepak, J. M., Jackson, A. K., Webster, J. P., Stewart, A. R., Davis, J. A., Alpers, C. N., Ackerman, J. T. (2016). Mercury in Western North America: A Synthesis of Environmental Contamination, Fluxes, Bioaccumulation, and Risk to Fish and Wildlife, Sci. Total Environ., 568, 1213-1226, doi: 10.1016/j.scitotenv.2016.05.094
Obrist, D., Agnan, Y., Zheng, W., Bergquist, B., Jiskra, M., Sonke, J., Helmig, D. (2016). Terrestrial Mercury Biogeochemistry: A Need to Re-assess the Role of Dry Deposition of Elemental Mercury (Keynote Presentation), Goldschmidt Conference: Yokohama, Japan
Obrist, D., Pearson, C., Webster, J., Kane, T., Lin, C., Aiken, G. R., Alpers, C. N. (2016). A Synthesis of Terrestrial Mercury in the Western United States: Spatial Distribution Defined by Land Cover and Plant Productivity, Sci. Total Environ., 568, 522-535, doi: 10.1016/j.scitotenv.2015.11.104
Perlinger, J. A., Gorman, H. S., Norman, E. S., Obrist, D., Selin, N. E., Urban, N. R., Wu, S. (2016). Measurement and Modeling of Atmosphere-Surface Exchangeable Pollutants (ASEPs) To Better Understand their Environmental Cycling and Planetary Boundaries, Environ. Scit. Technol Viewpoints, Article ASAP, DOI: 10.1021/acs.est.6b03447 (Aug 18 2016)
Webster, J. P., Kane, T. J., Obrist, D., Ryan, J. N., Aiken, J. R. (2016). Estimating Mercury Emissions Resulting from Wildfire in Forests of the Western United States, Science of the Total Environment, 568, 578-586, doi:10.1016/j.scitotenv.2016.01.166
Zhao, Q., Adhikari, D., Mejia, K., Huang, R., Patel, A., Wang, X., Tang, Y., Obrist, D., Roden, E., Yang, Y. (2016). Coupled Dynamics of Iron and Iron-bound Organic Carbon in Forest Soils During Anaerobic Reduction, Soil Science Society of America Annual Meeting: Phoenix, AZ
Zhao, Q., Adhikari, D., Patel, A., Mejia, J., Huang, R., Sumaila, S., Dynes, J. J., McBeth, J. M., Poulson, S., Tang, Y., Obrist, D., Roden, E. E., Yang, Y. (2016). Biogeochemical Cycles of Iron-Bound Organic Carbon in Forest Soils, DOE ESS-PI Meeting: Potomac, MD
Zhao, Q., Poulson, S. R., Obrist, D., Sumaila, S., Dynes, J. J., McBeth, J. M., Yang, Y. (2016). Iron-Bound Organic Carbon in Forest Soils: Quantification and Characterization, Biogeosciences Discuss., 13, 4777-4788
Zhao, Q., Poulson, S. R., Obrist, D., Yang, Y. (2016). Importance of Iron in Stabilization of Organic Carbon with Emphasis on the Influences of Soil Physicochemical Properties, Nevada Water Environment Association Annual Meeting: Sparks, NV
Zheng, W., Obrist, D., Weis, D., Bergquist, B. A. (2016). Mercury isotope compositions across North American forests, Global Biogeochemical Cycles, doi: 10.1002/2015GB005323 September 28, 2016, Accepted

2015

Amos, H. M., Sonke, J. E., Obrist, D., Robins, N., Hagan, N., Horowitz, H. M., Masin, R. P., Witt, M., Hedgecock, I., Corbitt, E. S., Sunderland, E. M. (2015). Global Anthropogenic Enrichment of Mercury and Implications for Future Environmental Concentrations, International Conference on Mercury as a Global Pollutant,: Jeju, South Korea, June 14, 2015
Amos, H. M., Sonke, J. E., Obrist, D., Robins, N., Hagan, N., Horowitz, H. M., Mason, R. P., Witt, M., Hedgecock, I., Corbitt, E. S., Sunderland, E. M. (2015). Observational and Modeling Constraints on Global Anthropogenic Enrichment of Mercury, J. Environ. Sci. Technol., 49, (7), 4036-4047
Denzler, B., Bogdal, C., Henne, S., Ubl-Kagi, S., Qureshi, A., Obrist, D., Hungerbuhler, K. (2015). Source Apportionment of Atmospheric Mercury Based on Background Air Monitoring at the High Altitude Research Station Jungfraujoch (3580 m), International Conference on Mercury as a Global Pollutant,: Jeju, South Korea, June 14, 2015
Eagles-Smith, C., Marvin-DiPasquale, M., Evers, D., Eckley, C., Wiener, J., Fleck, J., Ackerman, J., Aiken, G., Davis, J., Drevnick, P., Geesey, G., Jackson, A., Lepak, J., Obrist, D., Stewart, R., Webster, J., Weiss-Penzias, P., Willacker, J. (2015). Western North American Mercury Synthesis (WNAMS): A Multi-Disciplinary Tri-National Assessment of the Climate, Landscape, and Land-Use Controls on Mercury Risk to Ecological and Human Health Across Western North America, SETCAC 36th Annual Meeting: Salt Lake City, UT, November 5, 2015
Fenstermaker, L. F., Obrist, D., Tyler, S., Hausrath, E. M., Ferrell, G., McCubbin, I. B., Moosmuller, H., Murray, A. E., Schumer, R. (2015). Building Capacity in Interdisciplinary Snow Sciences for a Changing World, Invited talk. Nevada NASA EPSCoR and Space Grant Consortium Annual Meeting: Las Vegas, NV, April 30, 2015-May 1, 2015
Hedge, C. L., Obrist, D., Kretzschmar, R., Wiederhold, J. G., Biester, H., Chow, J. C., Moore, C. W., Agnan, Y., Helmig, D. (2015). Soil and Plant Mercury Concentrations and Pools in the Arctic Tundra of Northern Alaska, International Conference on Mercury as a Global Pollutant: Jeju, South Korea, June 14, 2015
Hedge, C. L., Obrist, D., Agnan, Y., Moore, C. W., Biester, H., Helmig, D. (2015). Soil and Plant Mercury Concentrations and Pools in the Arctic Tundra of Northern Alaska [abstract], American Geophysical Union Fall Meeting: San Francisco, CA, December 14, 2015, Abstract B13I-04
Howard, D. A., Edwards, G. C., Moore, C. W., Obrist, D. (2015). Observation of Night Time GEM Depletion Events Over an Australian Mid-Latitude Alpine Grassland, International Conference on Mercury as a Global Polluta: Jeju, South Korea, June 14, 2015
Khan, T., Agnan, Y., Obrist, D., Selin, N., Urban, N., Wu, S., Perlinger, J. (2015). Preliminary Assessment of Mercury Atmosphere-Surface Exchange Parameterizations for Incorporation into Chemical Transport Models [abstract], American Geophysical Union Fall Meeting: San Francisco, CA, December 14, 2015, Abstract B11D-0454
Moore, C. W., Dastoor, A., Steffen, A., Nghiem, S., Agnan, Y., Obrist, D. (2015). Measurements to Refine Global and Regional Scale Atmospheric Transport Models [abstract], American Geophysical Union Fall Meeting: San Francisco, CA, December 14, 2015, Abstract A23I-08
Agnan, Y., Moore, C. W., Edwards, G. C., LeDantec, T., Obrist, D. (2015). A Global Analysis of Surfaces-Atmosphere Exchange of Gaseous Elemental Mercury (Hg0), International Conference on Mercury as a Global Pollutant: Jeju, South Korea, June 14, 2015
Moore, C. W., Obrist, D., Steffen, A., Staebler, R. M., Douglas, T. A., Simpson, W. R., Peterson, P., Nghiem, S. V. (2015). Role of Snow and Ice Surfaces in the Atmospheric Cycling of Mercury in the Arctic, International Conference on Mercury as a Global Pollutant: Jeju, South Korea, June 14, 2015
Weiss-Penzias, P., Amos, H., Selin, N., Gustin, M., Jaffe, D., Obrist, D., Sheu, G., Giang, A. (2015). Use of a Global Model To Understand Speciated Atmospheric Mercury Observations at Five High-Elevation Sites, Atmospheric Chemistry and Physics, 15, (3), 1161-1173, doi: 10.5194/acp-15-1161-2015
Agnan, Y., Obrist, D., Edward, G., Moore, C. W., Hedge, C. L., Helmig, D., Paxton, D., Hueber, J. (2015). Spatial and Temporal Variability of Methane Mole Fractions and Exchanges in and Between Soil, Snow, and the Atmosphere in a Tundra System in Northern Alaska [abstract], American Geophysical Union Fall Meeting: San Francisco, CA, December 14, 2015, Abstract B13D-0648
Obrist, D., Hedge, C. L., Agnan, Y., Moore, C. W., Helmig, D., Hueber, J. (2015). Comparisons of Terrestrial Mercury (Hg) Accumulation and Dynamics Across Temperate Forests and an Arctic Tundra Site [invited talk], AGU-GAC-MAC-CGU, Joint Assembly: Montreal, Canada, May 1, 2015
Obrist, D., Helmig, D., Agnan, Y., Hedge, C. L., Moore, C. W., Paxton, D., Hueber, J. (2015). Mercury Dynamics of an Arctic Tundra Ecosystem in Northern Alaska: A Mass Balance, American Geophysical Union Fall Meeting: San Francisco, CA, December 14, 2015, Abstract B33G-03
Obrist, D., Helmig, D., Agnan, Y., Hueber, J., Hedge, C. L., Moore, C. W., Steffen, A., Brooks, S. (2015). Mercury Dynamics of an Inland Tundra Ecosystem in Northern Alaska: An Attempt for a First Mass Balance, International Conference on Mercury as a Global Pollutant: Jeju, South Korea, June 14, 2015
Obrist, D., Zielinska, B. K., Perlinger, J. (2015). Accumulation of Polycyclic Aromatic Hydrocarbons (PAHs) and Oxygenated PAHs (OPAHs) in Organic and Mineral Soil Horizons from Four U.S. Remote Forests, Chemosphere, 134, 98-105, doi: 10.1016/j.chemosphere.2015.03.087
Pearson, C., Schumer, R., Trustman, B. D., Rittger, K., Johnson, D. W., Obrist, D. (2015). Nutrient and Mercury Deposition and Storage in an Alpine Snowpack of the Sierra Nevada, USA, Biogeosciences, 12, 3665-3680, doi: 10.5194/bg-12-3665-2015
Peleg, M., Tas, E., Obrist, D., Matveev, V., Moore, C. W., Gabay, M., Luria, M. (2015). Contribution of the Nitrate Radical to Oxidation of Gaseous Elemental Mercury, Environ. Sci. Technol., 49, (24), 14008-14018, DOI: 10.1021/acs.est.5b03894
Perlinger, J. A., Obrist, D., Norman, E. S., Selin, N. E., Urban, N. R., Wu, S., Gorman, H. S. (2015). Re-defining the problem of atmospherically-transmitted toxic pollutants for more effective management., Biosciences, in review, Submitted
Perlinger, J. A., Obrist, D., Norman, E. S., Selin, N. E., Urban, N., Wu, S., Gorman, H. S. (2015). Global pollutants, interjurisdictional solutions: understanding the challenges of Atmosphere-Surface Exchangeable Pollutants (ASEPS) in the Laurential Great Lakes, Environ. Sci. Tech. Viewpoints, Reviewed
Pierce, A. M., Moore, C. W., Wohlfahrt, G., Hortnagl, L., Kljun, N., Obrist, D. (2015). Eddy Covariance Flux Measurements of Gaseous Elemental Mercury Using Cavity Ring-Down Spectroscopy, Environ. Sci. Technol., 49, (3), 1559-1568, doi: 10.1021/es505080z
Steffen, A., Cole, A., Dastoor, A., Moore, C. W., Obrist, D. (2015). Potential Impacts of Emissions, Increases in Temperature and Sea Ice Loss on the Mercury Cycle in the High Arctic, International Conference on Mercury as a Global Pollutant: Jeju, South Korea, June 14, 2015
Trustman, B. D., Obrist, D., Schumer, R., Strachan, S. (2015). Characterizing Spatial and Temporal Variability of Snow Water Equivalent, Tahoe Science Conference: UNR, Reno, NV, September 21, 2015
Trustman, B. D., Obrist, D., Schumer, R., Strachan, S. (2015). Characterizing Spatial Variability of Snow Water Equivalent Using Pressure Sensors, 83rd Annual Western Snow Conference: Grass Valley, CA, April 20, 2015
Trustman, B. D., Obrist, D., Schumer, R., Strachan, S. (2015). Characterizing Spatial Variability of Snow Water Equivalent Using Pressure Sensors, Western Snow Conference: Grass Valley, CA, April 20, 2015-April 23, 2015
Weiss-Penzias, P., Amos, H., Selin, N., Gustin, M., Jaffe, D., Obrist, D., Sheu, G., Giang, A. (2015). Corrigendum to Use of a global model to understand speciated atmospheric mercury observations at five high-elevation sites published in Atmos. Chem. Phys., 15, 1161-1173, 2015, Atmos. Chem. Phys., 15, (4), 2225-2225, doi: 10.5194/acp-15-2225-2015
Zhao, Q., Yang, Y., Obrist, D., Poulson, S. (2015). Importance of Iron and Soil Physicochemical Properties to Stabilize Organic Carbon in Soils [abstract], American Geophysical Union Fall Meeting: San Francisco, CA, December 14, 2015, Abstract B43I-0676
Zheng, W., Obrist, D., Weis, D., Bergquist, B. A. (2015). Mercury Isotope Compositions in North American Forests, International Conference on Mercury as a Global Pollutant: Jeju, South Korea, June 14, 2015

2014

Agnan, Y., Obrist, D., Moore, C. W. (2014). A comprehensive database of global soil-snow-atmosphere flux studies of mercury, 2014 American Geophysical Union (AGU) Fall Meeting: San Francisco, CA, December 15, 2014
Helmig, A. K., Obrist, D., Moore, C. W., Van Dam, B., Hueber, J., Molnar, T., Williams, M., Kramer, L., Doskey, P., Fain, X. (2014). The role of snow cover on surface trace gas exchanges at Toolik Lake, AK, 2014 American Geophysical Union (AGU) Fall Meeting: San Francisco, CA, December 15, 2014
LeDantec, T., Agnan, Y., Obrist, D., Moore, C. W. (2014). A comprehensive database of global soil-atmosphere flux studies of mercury, Soil Science Society of America Annual Meeting: Long Beach, CA, November 2, 2014
Moore, C. W., Obrist, D., Brooks, S., Steffen, A. (2014). An overview of mercury speciation measurements and analysis at high latitudes, Data collection, analysis, and application of speciated mercury workshop: San Francisco, CA, July 29, 2014
Moore, C. W., Obrist, D., Steffen, A., Staebler, R. M., Douglas, T. A., Nghiem, S. V. (2014). Mercury Depletion, Deposition, and Re-emission in Snowpack over the Arctic Tundra and Ocean, Goldschmidt Conference: Sacramento, CA, June 8, 2014
Moore, C. W., Obrist, D., Steffen, A., Staebler, R. M., Douglas, T. A., Richter, A., Nghiem, S. V. (2014). Convective forcing of mercury and ozone in the Arctic boundary layer induced by leads in sea ice, Nature, 506, 81-84, doi: 10.1038/nature12924
Obrist, D. (2014). Terrestrial mercury cycling: sequestration and re-emissions, Invited talk. Federal Institute of Technology: Zurich, Switzerland, May 1, 2014
Obrist, D. (2014). Persistent Semi-Volatile Pollutants: A Long-term Problem, Invited Talk. University of Basel: Switzerland, April 1, 2014
Obrist, D. (2014). Mercury in terrestrial environments: sinks, sources, and impacts for atmospheric loads, Invited Talk. National Ecological Observatory network (NEON): Boulder, CO, February 1, 2014
Obrist, D., Moore, C. W., LeDantec, T., Agnan, Y., Pearson, C. (2014). Soil mercury sequestration and re-mobilization and relationships to the global cycling of mercury, Soil Science Society of America Annual Meeting: Long Beach, CA, November 2, 2014
Obrist, D., Moore, C. W., Van Dam, B., Hueber, J., Molnar, T., Williams, M., Kramer, L., Doskey, P., Fain, X. (2014). The role of snow cover on surface trace gas exchanges at Toolik Lake, AK, Helmig, 2014 AGU Fall Meeting: San Francisco, CA, December 15, 2014
Obrist, D., Pokharel, A. K., Moore, C. W. (2014). Vertical Profile Measurements of Soil Air Suggest Immobilization of Gaseous Elemental Mercury in Mineral Soil, Environ. Sci. Technol., 48, 2242-2252., doi: 10.1021/es4048297
Obrist, D., Zielinska, B. K., Perlinger, J. (2014). Accumulation of polycyclic aromatic hydrocarbons (PAHS) in surface litter and soils in four forests in the United States, 2014 American Geophysical Union (AGU) Fall Meeting: San Francisco, CA, December 15, 2014
Perlinger, J., Urban, N., Obrist, D., Wu, S. (2014). The Role of Biogeochemical Cycling of Atmosphere-surface Exchangeable Pollutants (ASEPs) in the Dynamic Coupled Human-Natural ASEP System, 2014 American Geophysical Union (AGU) Fall Meeting: San Francisco, CA, December 15, 2014
Trustman, B. D., Obrist, D., Schumer, R., Pearson, C., Moore, C. W. (2014). Nutrient and Mercury Dynamics in the Lake Tahoe basin Snowpack, Mountain Observatories: Reno, NV, July 18, 2014
Weiss-Penzias, P., Amos, H. M., Selin, N. E., Gustin, M. S., Jaffe, D. A., Obrist, D., Sheu, G., Giang, A. (2014). Use of a global model to understand speciated atmospheric mercury observations at five high-elevation sites, Atmos. Chem. Phys. Discuss., 14, 22763-22792, doi:10.5194/acpd-14-22763-2014
Zheng, W., Bergquist, B. A., Weis, D., Obrist, D. (2014). Mercury isotope compositions in North American forest soils and litters, Goldschmidt Conference: Sacramento, CA, June 8, 2014
Zielinska, B. K., Obrist, D., Cunningham, A. E. (2014). Deposition of Polycyclic Aromatic Hydrocarbons in Soil and Litter, Paper presented at the 107th AWMA Annual Conference: Long Beach, CA, June 24, 2014

2013

Corbitt, E. S., Jacob, D. J., Horowitz, H. M., Obrist, D., Sunderland, E. M. (2013). Coupled Atmosphere-Terrestrial Modeling of Global Mercury Cycling, International Conference on Mercury as a Global Pollutant: Edinburgh, Scotland, July 28, 2013
Darby, S. B., Pierce, A. M., Moore, C. W., Moosmuller, H., Venables, D. S., Obrist, D. (2013). An atmospheric simulation chamber study of the bromine-initiated oxidation of mercury at a range of temperatures, International Conference on Mercury as a Global Pollutant: Edinburgh, Scotland, July 28, 2013
Faïn, X., Helmig, D., Hueber, J., Obrist, D., Williams, M. M. (2013). Mercury Dynamics in the Rocky Mountain, Colorado, Snowpack, Biogeosciences, 10, 3793-3807
Hararuk, O., Obrist, D., Lou, Y. (2013). Modeling the sensitivity of soil mercury storage to climate-induced changes in soil carbon pools, . Biogeosciences, 10, 2393-2407
Helmig, D., Fain, X., Obrist, D., Barbero, A., Barret, M., Van Dam, B., Dommergue, A., Hueber, J., Magand, O., Mass, A., Pirrone, N., Savarino, J., Seok, B., Sprovieri, F., Stephens, C., Williams, M. (2013). Vertical gaseous elemental mercury concentration gradients, mercury redox processes, and surface exchanges in alpine and polar snowpacks, International Conference on Mercury as a Global Pollutant: Edinburgh, Scotland, July 28, 2013
Luria, M., Obrist, D., Moore, C. W., Peleg, M., Matveev, V. (2013). Is Nitrate radical a major oxidant of elemental mercury in the atmosphere?, International Conference on Mercury as a Global Pollutant: Edinburgy, Scotland, July 28, 2013
Moore, C. W., Obrist, D. (2013). Studying Bromine, Ozone, and Mercury Chemistry in the Artic, EOS, 94, (33)
Moore, C. W., Obrist, D., Luria, M. (2013). Atmospheric mercury depletion events at the Dead Sea: Spatial and temporal aspects, Atmos. Environ., 69, 231-239
Moore, C. W., Obrist, D., Steffen, A., Staebler, R., Douglas, T. A., Nghiem, S. V. (2013). Effects of Sea Ice Dynamics on Arctic Atmospheric Mercury Cycling, International Conference on Mercury as a Global Pollutant: Edinburgh, Scotland, July 28, 2013
Nghiem, S., Clemente-Colón, P., Douglas, T., Moore, C. W., Obrist, D., Perovich, P., Pratt, K., Rigor, I., Simpson, W., Shepson, P. B., Steffen, A., Woods, J. (2013). The Bromine, Ozone, and Mercury Experiment., EOS, 94, (33), 289-291
Nghiem, S. V., Shepson, P. B., Simpson, W., Perovich, D. K., Sturm, M., Douglas, T., Rigor, I. G., Clemente-Colon, P., Burrows, J. P., Richter, A., Steffen, A., Staebler, R., Obrist, D., Moore, C. W., Bottenheim, J., Platt, U., Pohler, D., General, S., Zielcke, K., Fuentes, J. D., Hall, D. K., Kaleschke, L., Woods, J., Hager, C., Smith, K., Sweet, C. R., Pratt, K., Custard, K., Peterson, P., Walsh, S., Gleason, E., Saiet, E., Webster, M., Lieb-Lappen, R., Linder, C., Neumann, G. (2013). Science Progress from the BRomine, Ozone, and Mercury EXperiment (BROMEX), Davos Atmosphere and Cryosphere Assembly 2013 Air, Ice & Process Interactions: Davos, Switzerland, July 8, 2013
Nghiem, S. V., Shepson, P. B., Simpson, W., Perovich, D. K., Sturm, M., Douglas, T., Rigor, I. G., Clemente-Colon, P., Burrows, J. P., Richter, A., Steffen, A., Staebler, R., Obrist, D., Moore, C. W., Bottenheim, J., Platt, U., Pohler, D., General, S., Zielcke, K., Fuentes, J. D., Hall, D. K., Kaleschke, L., Woods, J., Hager, C., Smith, K., Sweet, C. R., Pratt, K., Custard, K., Peterson, P., Walsh, S., Gleason, E., Saiet, E., Webster, M., Lieb-Lappen, R., Linder, C., Neumann, G. (2013). Arctic sea ice reduction and tropospheric chemical processes, The Fourth International Conference on Bioenvironment, Biodiversity and Renewable Energies, BIONATURE: Libson, Portugal, March 24, 2013
Obrist, D. (2013). Mercury distribution across 14 U.S. forests. Part II: Patterns of methyl mercury concentrations and areal mass of total and methyl mercury, Environ. Sci. Tech., 46, 5921-5930
Obrist, D. (2013). Sequestration and re-emission of Atmosphere-Surface Exchangeable Pollutants (ASEPs), Community and Partner Workshop: Managing impacts of global transport of atmosphere-surface exchangeable pollutants (ASEPs) in the context of global change, Great Lakes Research Center, Michigan Technological University: Houghton, MI, November 15, 2013
Obrist, D. (2013). Terrestrial ecosystems and atmospheric mercury loads: Sequestration of past pollution and importance of legacy re-emissions, Invited Seminar. Department of Chemistry, University College Cork: Cork, Ireland, October 1, 2013
Obrist, D. (2013). Mercury cycling in terrestrial environments ? an ecosystem perspective, Invited Seminar. Department of Forest Ecology and Management, Swedish University of Agricultural Sciences: Umea, Sweden, October 1, 2013
Obrist, D., Moore, C. W., Pearson, C., Pierce, A. M., Schumer, R., Helmig, D., Van Dam, B., Fain, X., Steffen, A., Staebler, R., Nghiem, S., Douglas, T. (2013). Mercury in alpine and Arctic snow: atmospheric deposition and fate processes, Seminar, Graduate Program of Hydrologic Sciences, University of Nevada: Reno, NV, April 1, 2013
Obrist, D., Perlinger, J. (2013). Linking atmospheric and terrestrial cycles of Surface-Atmosphere-Exchangeable Pollutants (ASEPS), Department of Civil and Environmental Engineering, Michigan Technological University: Houghton, MI, November 1, 2013
Obrist, D., Pokharel, A. K., Moore, C. W. (2013). Elemental Mercury Depletion in Soils: An Unaccounted Mercury Sink?, International Conference on Mercury as a Global Pollutant: Edinburgh, Scotland, July 28, 2013
Pearson, C., Obrist, D., Schumer, R. (2013). Nutrient and Mercury Concentrations and Loads in Tahoe Basin Snowpack, AGU Fall Meeting: San Francisco, CA, December 9, 2013
Pearson, C., Obrist, D., Schumer, R. (2013). Nitrogen and Phosphorus Concentrations and Loads within Lake Tahoe Snowpack, University Council on Water Resources 2013 Annual Conference: Lake Tahoe, CA, June 1, 2013
Pierce, A. M., Obrist, D., Moore, C. W., Moosmuller, H. (2013). Atmospheric mercury concentration measurements and eddy covariance flux measurements using cavity ring-down spectroscopy, International Conference on Mercury as a Global Pollutant: Edinburgh, Scotland, July 28, 2013
Pierce, A. M., Obrist, D., Moosmuller, H., Faïn, X., Moore, C. W. (2013). Cavity ring-down spectroscopy development for high-time-resolution measurements of gaseous elemental mercury in ambient air, Atmos. Meas. Tech., 6, 1477-1489
Tas, E., Obrist, D., Peleg, M., Matveev, V., Fain, X., Asaf, D., Luria, M. (2013). Measurement-based modelling of bromine-induced oxidation of mercury above the Dead Sea, The Atmospheric Chemistry Gordon Research Conference: Mount Snow Resort, West Dover, VT, July 28, 2013-August 2, 2013
Teisserence, R., Lucotte, M., Canuel, R., Moingt, M., Obrist, D. (2013). Combined dynamics of mercury and terrigenous organic matter following impoundment of Churchill Falls Hydroelectric Reservoir, Labrador, Biogeochemistry, 118, (1), 21-34, doi: 10.1007/s10533-013-9902-9
Van Dam, B., Helmig, D., Burkhart, J. F., Obrist, D., Oltmans, S. (2013). Springtime boundary layer O3 and GEM depletion at Toolik Lake, Alaska, J. Geophys. Res., 118, (8), 3382-3391
Venables, D. S., Darby, S. B., Pierce, A. M., Moore, C. W., Moosmuller, H., Obrist, D. (2013). The role of BrO in the oxidation of GEM: A chamber investigation at close-to-representative concentrations, International Conference on Mercury as a Global Pollutant: Edinburgh, Scotland, July 28, 2013
Weiss-Penzias, P., Eckley, C., Parsons, M., Morris, K., Jaffe, D., Gustin, M., Steffen, S., Mintz, R., Rothenberg, S., Perry, K., Obrist, D., Cole, A., Gay, D. (2013). Spatial and temporal patterns of air concentrations of mercury in Western North America 1998-present, AGU Fall Meeting: San Francisco, CA, December 9, 2013
Zhang, Y., Obrist, D., Zielinska, B. K., Gertler, A. W. (2013). Particulate emissions from different types of prescribed biomass burning, Atmos. Environ., 72, 27-35
Zheng, W., Obrist, D., Bergquist, B. A. (2013). Mercury isotope compositions in North American forest soils and litters, AGU Fall Meeting: San Francisco, CA, December 9, 2013
Zielinska, B. K., Obrist, D. (2013). Polycyclic Aromatic Hydrocarbons (PAHs) in Soil and Litter Samples, . 24th International Symposium on Polycyclic Aromatic Compounds (ISPAC 2013): Corvallis, OR, September 8, 2013

2012

Faïn, X., Helmig, D., Hueber, J., Obrist, D., Williams, M. M. (2012). Mercury Dynamics in the Rocky Mountain, Colorado, Snowpack, Biogeosciences Discuss., 9, 15423-15458
Hararuk, O., Obrist, D., Luo, Y. (2012). Modeling the sensitivity of soil mercury storage to climate-induced changes in soil carbon pools, Biogeosciences Discuss., 9, 11403-11441
Hararuk, O., Obrist, D., Luo, Y. (2012). Modeling the sensitivity of soil mercury storage to climate-induced changes in soil carbon pools, Biogeosciences Discuss., 9, 11403-11441, 97th ESA Annual Meeting: Portland, OR, August 5, 2012
Luria, M., Obrist, D., Peleg, M., Matveev, V., Moore, C. W., Tas, E. (2012). Is nitrate radical a major oxidant of element mercury in the atmosphere?, AGU Fall Meeting: San Francisco, CA, December 3, 2012
Meinert, M., Obrist, D. (2012). DRI Mercury Research to Benefit WCSD Students, Washoe County: February 27, 2012
Moore, C. W., Steffen, A., Obrist, D., Staebler, R., Douglas, T., Ngheim, S. (2012). Mercury speciation, fluxes, and snow concentrations at the OOTI and CARL sites, BROMEX data meeting, University of Washington: Seattle, WA, October 16, 2012
Moore, C. W., Steffen, A., Obrist, D., Staebler, R., Douglas, T., Nghiem, S. (2012). Mercury Surface-Atmospheric Flux and Speciation Measurements in Barrow, Alaska, USA during the BROMEX campaign, European Geophysical Union Annual Meeting: Vienna, Austria, April 22, 2012
Moore, C. W., Steffen, A., Obrist, D., Staebler, R., Nghiem, S. (2012). Influence of Sea Ice Dynamics on Atmospheric Mercury and Ozone Concentrations and Fluxes during the BROMEX Campaign (A31D, AGU Fall Meeting: San Francisco, CA, December 3, 2012
Obrist, D. (2012). Correction to Mercury Distribution across 14 U.S. Forests. Part II: Patterns of Methyl Mercury Concentrations and Areal Mass of Total and Methyl Mercury, Environ. Sci. Technol., 46, (13), 5921-5930
Obrist, D. (2012). Mercury in Sierra Nevada Forests, Blodgett Forest Research Workshop: Georgetown, CA, January 27, 2012
Obrist, D. (2012). Terrestrial Mercury Surface Reservoirs: Magnitude, Spatial Patterns, Fate, and Re, 1st conference on Atmospheric Biogeosciences, American Meteorological Society: Boston, MA, May 29, 2012-June 1, 2012
Obrist, D., Johnson, D. W., Edmonds, R. L. (2012). Effects of vegetation type on mercury concentrations and pools in two adjacent coniferous and deciduous forests, J. Plant Nutr., 175, (1), 68-77
Obrist, D., Johnson, D. W., Lindberg, S. E., Luo, Y. (2012). Mercury (Hg) accumulation in terrestrial carbon (C) reservoirs: magnitude, spatial patterns, fate upon C losses, and implications of global change, European Geophysical Union Annual Meeting: Vienna, Austria, April 22, 2012
Obrist, D., Moore, C. W., Douglas, T., Steffen, A., Staebler, R., Nghiem, S. (2012). Snow Mercury Concentrations during the BOMEX campaign: Relationships to Ion concentrations, Mercury Depletion Events, and Sea Ice Dynamics, AGU Fall Meeting: San Francisco, CA, December 3, 2012
Obrist, D., Moore, C. W., Douglas, T. A., Steffen, A., Staebler, R. M., Pearson, C. (2012). Concentrations of total and dissolved Hg in snow and vapor deposition collected during Atmospheric Mercury Depletion Events (AMDEs) in Barrow, Alaska during the BROMEX campaign. Abstract A31D-0059, AGU Fall Meeting: San Francisco, CA, December 3, 2012
Pearson, C., Obrist, D., Schumer, R. (2012). Quantifying Nutrient and Mercury Concentrations and Loads in Lake Tahoe Snowpack, 2012 AGU Fall Meeting: San Francisco
Pearson, C., Obrist, D., Schumer, R. (2012). Quantifying Nutrient and Mercury Concentrations and Loads in Tahoe Snowpack, Water Summit 2012: Milwaukee, WI, September 27, 2012
Pearson, C., Obrist, D., Schumer, R. (2012). Quantifying Nutrient and Mercury Concentrations and Loads in Lake Tahoe Snowpack, Abstract B23H-0540, Presentation at AGU 2012 Fall Meeting: San Francisco, CA, December 3, 2012
Pierce, A. M., Obrist, D., Moosmuller, H., Fain, X., Moore, C. W. (2012). A cavity ring-down spectroscopy sensor for measurements of gaseous elemental mercury ? Part 1: Development of real-time resolution measurements in ambient air, Atmos. Meas. Tech. Discuss., 5, 8995-9020
Pierce, A. M., Obrist, D., Moosmuller, H., Moore, C. W. (2012). Cavity Ring-Down Spectroscopy (CRDS) System for Measuring Atmospheric Mercury Using Differential Absorption, Abstract EGU2012-11454ys. 2012 General Assembly of the European Geosciences Union (EGU): Vienna, Austria, April 22, 2012
Tas, E., Obrist, D., Peleg, M., Matveev, V., Fain, X., Asaf, D., Luria, M. (2012). Measurement-based modelling of bromine-induced oxidation of mercury above the Dead Sea, Atmos. Chem. Phys., 12, (5), 2429-2440
VanDam, B., Helmig, D., Burkhart, J., Oltmans, S., Fain, X., Obrist, D. (2012). Observations of springtime surface O3 and GEM depletion at Toolik Lake, AK, National Ocean & Atmospheric Administration, Earth System Research Laboratory Global Monitoring Annual Conference: Boulder, CO, May 2012
Zhang, Y., Obrist, D., Zielinska, B. K. (2012). Emissions of Carbon Species, Organic Polar Compounds, Potassium, and Mercury from Controlled Biomass Burning, Air Quality Management at Urban, Regional, and Global Scales; 4th International Symposium and IUAPPA Regional Conference: Istanbul, Turkey, September 7, 2012
Zhang, Y., Obrist, D., Zielinska, B. K., Gertler, A. W. (2012). Smoke emissions from prescribed burning in the Lake Tahoe Basin (Nevada/California), Tahoe Science Conference: Incline Village, CA, May 2012
Zhang, Y., Obrist, D., Zielinska, B. K., Gertler, A. W. (2012). Emissions of carbon species, organic polar compounds, potassium, and mercury from prescribed burning activities, 2012 Tahoe Science Conference: Incline Village, CA, May 2012
Zhang, Y., Obrist, D., Zielinska, B. K., Gertler, A. W. (2012). Emissions of carbon species, organic polar compounds, potassium, and mercury from prescribed burning activities, Abstract EGU2012-12008ys, European Geophysical Union Annual Meeting: Vienna, Austria, April 2012

Authors

Abstract