Earth Scientist
Earth Scientist

Biography

Peter Regier started at Pacific Northwest National Laboratory as a post doctorate researcher in 2020 and became Earth scientist in the Coastal Sciences Division in 2022. He currently works with the Environmental Biogeochemistry team.

Regier’s active research interests include biogeochemical control points in aquatic ecosystems, environmental controls of surface and groundwater biogeochemistry, in-situ sensors for marine carbon dioxide removal monitoring reporting and verification, and synthesis of public data resources.

Research Interest

  • Coastal processes
  • Coastal sciences
  • Environmental science
  • Machine learning
  • Sensors
  • Terrestrial-aquatic research
  • Time-series data
  • Water quality

Education

  • PhD in chemistry, Florida International University
  • BS in chemistry, Bethel College

Affiliations and Professional Service

  • Member, American Geophysical Union, 2014–present
  • Member, Association for the Sciences of Limnology and Oceanography, 2015–2022

Publications

2023

  • Adebayo, M. B., V. L. Bailey, X. Chen, A. M. Hopple, P. Jiang, B. Li, Z. Li, J. M. Martin-Hayden, J. P. Megonigal, P. J. Regier, R. Rich, J. C. Stegen, R. W. Smith, N. D. Ward, S. C. Woodard, and K. O. Doro. 2023. A Hydrogeophysical Framework to Assess Infiltration during a Simulated Ecosystem-Scale Flooding Experiment.” Journal of Hydrology 626: 130243. https://doi.org/https://doi.org/10.1016/j.jhydrol.2023.130243.
  • Buser-Young, J. Z., P. E. Garcia, M. O. Schrenk, P. J. Regier, N. D. Ward, K. Biçe, S. C. Brooks, E. C. Freeman, and C. Lønborg. 2023. “Determining the Biogeochemical Transformations of Organic Matter Composition in Rivers Using Molecular Signatures.” Frontiers in Water 5. https://doi.org/10.3389/frwa.2023.1005792.
  • Ding, J., N. McDowell, Y. Fang, N. Ward, M. L. Kirwan, P. Regier, P. Megonigal, P. Zhang, H. Zhang, W. Wang, W. Li, S. C. Pennington, S. J. Wilson, A. Stearns, and V. Bailey. 2023. “Modeling the Mechanisms of Conifer Mortality under Seawater Exposure.” New Phytologist 239 (5): 1679-1691. https://doi.org/10.1111/nph.19076.
  • Hopple, A. M., K. O. Doro, V. L. Bailey, B. Bond-Lamberty, N. McDowell, K. A. Morris, A. Myers-Pigg, S. C. Pennington, P. Regier, R. Rich, A. Sengupta, R. Smith, J. Stegen, N. D. Ward, S. C. Woodard, and J. P. Megonigal. 2023. “Attaining Freshwater and Estuarine-Water Soil Saturation in an Ecosystem-Scale Coastal Flooding Experiment.” Environmental Monitoring and Assessment 195 (3). https://doi.org/10.1007/s10661-022-10807-0.
  • Myers-Pigg, A. N., S. C. Pennington, K. K. Homolka, A. M. Lewis, O. Otenburg, K. F. Patel, P. Regier, M. Bowe, M. I. Boyanov, N. A. Conroy, D. J. Day, C. G. Norris, E. J. O’Loughlin, J. A. Roebuck, L. Stetten, V. L. Bailey, K. M. Kemner, N. D. Ward, S. Alford, M. P. Back, A. Baldwin, J. Bolinger, J. A. Cianci-Gaskill, M. J. Cooper, A. Demeo, K. Derby, D. Detweiler, S. Devres-Zimmerman, E. Eberhard, K. Gedan, L. Haaf, E. Johnson, A. Khan, M. L. Kirwan, P. Kittaka, E. Koontz, A. Langley, R. Leff, S. Lerberg, S. Y. Malkin, A. M. Marcarelli, S. E. McMurray, T. Messerschmidt, T. C. Michael, H. A. Michael, E. C. Minor, B. Moye, T. J. Mozdzer, S. Neubauer, A. Pain, M. Philben, E. Phillips, D. Pratt, L. Sage, D. Sandborn, S. Smith, A. Smith, S. Soin-Voshell, B. Song, A. Sprague-Getsy, K. St. Laurent, L. Staver, A. Stearns, R. Swerida, E. J. Theuerkauf, K. Tully, R. Vargas, E. Watson, and C. Weilminster. 2023. “Biogeochemistry of Upland to Wetland Soils, Sediments, and Surface Waters across Mid-Atlantic and Great Lakes Coastal Interfaces.” Scientific Data 10 (1). https://doi.org/10.1038/s41597-023-02548-7.
  • Regier, P. J., N. D. Ward, A. N. Myers‐Pigg, J. Grate, M. J. Freeman, and R. N. Ghosh. 2023. “Seasonal Drivers of Dissolved Oxygen across a Tidal Creek–Marsh Interface Revealed by Machine Learning.” Limnology and Oceanography 68 (10): 2359-2374. https://doi.org/10.1002/lno.12426.
  • Regier, P., N. D. Ward, A. Izquierdo, A. H. Baldwin, D. Day, J. McElhinny, K. Patel, R. Vargas, J. Zheng, and A. Myers-Pigg. 2023. “Coastal inundation regime moderates the short-term effects of sediment and soil additions on seawater oxygen and greenhouse gas dynamics: a microcosm experiment.” Frontiers in Marine Science 10. https://doi.org/10.3389/fmars.2023.1308590.
  • Regier, P., M. Duggan, A. Myers‐Pigg, and N. Ward. 2022. “Effects of Random Forest Modeling Decisions on Biogeochemical Time Series Predictions.” Limnology and Oceanography: Methods 21 (1): 40-52. https://doi.org/10.1002/lom3.10523.

2022

  • Nichols, J., A. S. Khandelwal, P. Regier, B. Summers, D. J. Van Horn, and R. González-Pinzón. 2022. “The Understudied Winter: Evidence of How Precipitation Differences Affect Stream Metabolism in a Headwater.” Frontiers in Water 4. https://doi.org/10.3389/frwa.2022.1003159.

2021

  • Ball, G., P. Regier, R. González-Pinzón, J. Reale, and D. Van Horn. 2021. “Wildfires Increasingly Impact Western US Fluvial Networks.” Nature Communications 12 (1). https://doi.org/10.1038/s41467-021-22747-3.
  • Regier, P., N. D. Ward, J. Indivero, C. Wiese Moore, M. Norwood, and A. Myers‐Pigg. 2021. “Biogeochemical Control Points of Connectivity Between a Tidal Creek and Its Floodplain.” Limnology and Oceanography Letters 6 (3): 134-142. https://doi.org/10.1002/lol2.10183.
  • Webster, A. J., T. A. Douglas, P. Regier, M. D. Scheuerell, and T. K. Harms. 2021. “Multi-Scale Temporal Patterns in Stream Biogeochemistry Indicate Linked Permafrost and Ecological Dynamics of Boreal Catchments.” Ecosystems 25 (5): 1189-1206. https://doi.org/10.1007/s10021-021-00709-6.

2020

  • Bicknell, K., P. Regier, D. J. Van Horn, K. L. Feeser, and R. González-Pinzón. 2020. “Linking Hydrobiogeochemical Processes and Management Techniques to Close Nutrient Loops in an Arid River.” Frontiers in Water 2. https://doi.org/10.3389/frwa.2020.00022.
  • Dallan, E., P. Regier, A. Marion, and R. González‐Pinzón. 2020. “Does the Mass Balance of the Reactive Tracers Resazurin and Resorufin Close at the Microbial Scale?” Journal of Geophysical Research: Biogeosciences 125 (2). https://doi.org/10.1029/2019jg005435.
  • Khandelwal, A., R. González‐Pinzón, P. Regier, J. Nichols, and D. J. Van Horn. 2020. “Introducing the Self‐Cleaning FiLtrAtion for Water quaLity SenSors (SC‐FLAWLeSS) system.” Limnology and Oceanography: Methods 18 (9): 467-476. https://doi.org/10.1002/lom3.10377.
  • Regier, P. J., R. González-Pinzón, D. J. Van Horn, J. K. Reale, J. Nichols, and A. Khandewal. 2020. “Water quality impacts of urban and non-urban arid-land runoff on the Rio Grande.” Science of The Total Environment 729. https://doi.org/10.1016/j.scitotenv.2020.138443.
  • Regier, P., L. Larsen, K. Cawley, and R. Jaffé. 2020. “Linking Hydrology and Dissolved Organic Matter Characteristics in a Subtropical Wetland: A Long‐Term Study of the Florida Everglades.” Global Biogeochemical Cycles 34 (12). https://doi.org/10.1029/2020gb006648.

2019

  • González‐Pinzón, R., J. Dorley, P. Regier, J. Fluke, K. Bicknell, J. Nichols, A. Khandelwal, E. Wolf, S. N. Caruana, and D. J. Van Horn. 2019. “Introducing “the Integrator”: A Novel Technique to Monitor Environmental Flow Systems.” Limnology and Oceanography: Methods 17 (7): 415-427. https://doi.org/10.1002/lom3.10322.
  • Regier, P., H. Briceño, and J. N. Boyer. 2019. “Analyzing and Comparing Complex Environmental Time Series Using a Cumulative Sums Approach.” MethodsX 6: 779-787. https://doi.org/10.1016/j.mex.2019.03.014.
  • Wise, J. L., D. J. Van Horn, A. F. Diefendorf, P. J. Regier, T. V. Lowell, and C. N. Dahm. 2019. “Dissolved Organic Matter Dynamics in Storm Water Runoff in a Dryland Urban Region.” Journal of Arid Environments 165: 55-63. https://doi.org/10.1016/j.jaridenv.2019.03.003.

2018

  • Regier, P., D. He, C. J. Saunders, B. Jara, C. Hansen, S. Newman, E. Tate‐Boldt, C. Coronado‐Molina, and R. Jaffé. 2018. “Sheet Flow Effects on Sediment Transport in a Degraded Ridge‐and‐Slough Wetland: Insights Using Molecular Markers.” Journal of Geophysical Research: Biogeosciences 123 (10): 3124-3139. https://doi.org/10.1029/2018jg004648.

2016

  • Regier, P., and R. Jaffé. 2016. “Short-Term Dissolved Organic Carbon Dynamics Reflect Tidal, Water Management, and Precipitation Patterns in a Subtropical Estuary.” Frontiers in Marine Science 3. https://doi.org/10.3389/fmars.2016.00250.
  • Regier, P., H. Briceño, and R. Jaffé. 2016. “Long-Term Environmental Drivers of DOC Fluxes: Linkages between Management, Hydrology and Climate in a Subtropical Coastal Estuary.” Estuarine, Coastal and Shelf Science 182: 112-122. https://doi.org/10.1016/j.ecss.2016.09.017.