(April 2025 vintage)
PATRICK A. RAFTER Assistant Professor
College of Marine Science
University of South Florida
prafter@usf.edu
858-405-0539
www.OceanAndClimate.com
APPOINTMENTS
Assistant Professor. University of South Florida College of Marine Science. Jan. 2024-present
Assistant Researcher. UC Irvine. July 2022-December 2023
Assistant Project Scientist. Keck Carbon Cycle Laboratory, UC Irvine. Apr 2014-July 2022
Postdoctoral Research Associate & Associate Research Scholar. Princeton University. 2009-2014
EDUCATION
PhD in Oceanography. Scripps Institution of Oceanography. Sept 2002-Sept 2009
BS in Environmental Science. Florida Institution of Technology 2000
BS in Marine Environmental Studies. Florida Institution of Technology 2000
PUBLICATIONS (*student-led publication)
IN REVIEW. Rafter, P.A., J. R. Farmer, A. Martinez-Garcia, A.C. Ravelo, F.C. Batista, S. Bernasconi, H. Ren, A. Auderset, G.H. Haug, D.M. Sigman (IN REVIEW) Persistent eastern equatorial Pacific Ocean upwelling since the warm Pliocene
IN REVIEW. *Green, R.A., P.A. Rafter, C. Sun, W.R. Gray, J.W.B. Rae, M. Pelly, C. Xu, K. Thirumalai, J.R. Southon, F. Pavia, M.P. Hain (IN REVIEW) Simulating deglacial radiocarbon anomalies with pH-neutral geologic carbon.
IN REVIEW. Piccione, G., T. Blackburn, M.P. Hain, P.A. Rafter, Slawek Tulaczyk, Colin Carney, Jessica Gagliardi. (IN REVIEW) Expanded constraints on chemical weathering reactions and carbon cycling beneath the Antarctic Ice Sheet
IN REVIEW. Kienast, M., M. Hollstein, P.A. Rafter, N. Lehmann, Z. Li, M.T. Chen, M. Mohtadi (IN REVIEW) Significant Southern Hemisphere contribution to the Indonesian Throughflow over the last 800,000 years
40. Cetiner, J.E.P, W.M. Berelson, N.E. Rollins, X. Liu, F.J. Pavia, A.R. Waldeck, S. Dong, K. Fleger, H.A. Barnhart, M. Quinan, R.P. Wani, P.A. Rafter, A.D. Jacobson, R.H. Byrne, J.F. Adkins (2025) Carbonate dissolution fluxes in deep-sea sediments as determined from in situ porewater profiles in a transect across the saturation horizon. Geochimica et Cosmochimica Acta. 10.1016/j.gca.2024.11.027
39. Mills, M., J.T. Cullen, J. Spence, P.A. Rafter, S. Mihaly, L.A. Coogan (2024) Tracking hydrothermal particles from the ridge axis to the sediment column along the Endeavour segment of the Juan de Fuca Ridge. Marine Geology. 10.1016/j.margeo.2024.107432
38. Rafter, P.A. (2024) On the Variability of Equatorial Pacific Nitrate and Iron Utilization. Oceanography. https://doi.org/10.5670/oceanog.2024.411
37. *Green, R.A., M.P. Hain, P.A. Rafter (2024) Deglacial Pulse of Neutralized Carbon from the Pacific Seafloor: Constraints from the Radiocarbon Budget. Geophysical Research Letters. https://doi.org/10.1029/2024GL108271
36. Umling, N.E., E. Sikes, P.A. Rafter, N. Goodkin (2024) Deglacial carbon escape from the northern rim of the Southern Ocean. Geophysical Research Letters. https://doi.org/10.1029/2023GL106413
35. Prabhakar, M., K. Thirumalai, T.M. Cronin, L. Gemery, E.K. Thomas, P.A. Rafter (2024) Morphotypical and geochemical variations of planktic foraminiferal species in Siberian and central Arctic Ocean core tops. Journal of Foraminiferal Research. https://doi.org/10.2113/gsjfr.54.1.1
34. Díaz-Asencio, M., Herguera, J. C., Romero, F. G., & Rafter, P. (2023). Sediment accumulation rates and carbonate fluxes of deep-sea sediments in the southern Gulf of Mexico. Marine Geology, 464, 107131. https://doi.org/10.1016/j.margeo.2023.107131
33. Palter, J., Cross, J., Long, M., Rafter, P., & Reimers, C. (2023). The Science We Need to Assess Marine Carbon Dioxide Removal. Eos, 104. https://doi.org/10.1029/2023EO230214
32. Seltzer, A.M., D.P. Nicholson, W.M. Smethie, R.L. Tyne, E.L Roy, R.H.R. Stanley, M. Stute, P.H. Barry, K. McPaul, P.W. Davidson, B.X. Chang, P.A. Rafter, P. Lethaby, R. J. Johnson, S. P. Khatiwala, W. J. Jenkins (2023) Dissolved gases track deep ocean ventilation processes in the deep North Atlantic. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.2217946120
31. Marshall, T. A., Sigman, D. M., Beal, L. M., Foreman, A., Martínez‐García, A., Blain, S., et al. (2023). The Agulhas Current Transports Signals of Local and Remote Indian Ocean Nitrogen Cycling. Journal of Geophysical Research: Oceans, 128(3), e2022JC019413. https://doi.org/10.1029/2022JC019413
30. Rafter, P.A., W.R. Gray, S.K.V. Hines, A. Burke, K.M. Costa, J. Gottschalk, M.P. Hain, J.W.B. Rae, J.R. Southon, M.H. Walczak, J. Yu, J.F. Adkins, T. DeVries (2022) Global reorganization of deep-sea circulation and carbon storage after the last ice age. Science Advances. DOI: 10.1126/sciadv.abq5434
29. White, M.E., P.A. Rafter, B.M. Stephens, M.R. Mazloff, S.D. Wankel, L.I. Aluwihare. (2022) Stable isotopes of nitrate reveal the effects of ENSO on nitrogen cycling in the surface waters of the southern California Current System. Limnology & Oceanography. doi.org/10.1002/lno.12194
28. Fripiat, F., A. Martínez-García, D. Marconi, S.E. Fawcett, S.H. Kopf, V.H. Luu, P.A. Rafter, R. Zhang, D.M. Sigman, G.H. Haug. (2021) Nitrogen isotopic constraints on nutrient transport to the upper ocean. Nature Geoscience.doi.org/10.1038/s41561-021-00836-8
27. Horner, T.J. and GEOTRACES–PAGES Biological Productivity Working Group Members. (2021) Bioactive trace metals and their isotopes as paleoproductivity proxies: An assessment using GEOTRACES-era data. Global Biogeochemical Cycles.
26. Farmer, J.R., J.E. Hertzberg, D. Cardinal, S. Fietz, K. Hendry, S.L. Jaccard, A. Paytan, P.A. Rafter, H. Ren, C.J. Somes, J.N. Sutton. (2021) Major element isotope tracers associated to past ocean productivity. Global Biogeochemical Cycles. doi.org/10.1029/2020GB006775
25. Gajurel, A.P., M.S. Hubbard, B. Giri, A.C. Elmore, S. Maka, P.A. Rafter, A.E. Putnam, S. Elvin, A. Tait, P.A. Mayewski. (2021) Climatic and Tectonic Significance of Taboche Lake, Khumbu Region, Nepal. iScience. doi.org/10.1016/j.isci.2021.102418
24. Dai, Y., J. Yu, and P.A. Rafter. (2021) Deglacial ventilation changes in the deep southwest Pacific. Paleoceanography.doi/10.1029/2020PA004172
23. Rae, J., W.R. Gray, R.C.J. Wills, I. Eisenman, B. Fitzhugh, M. Fotheringham, E.F.M. Littley, P.A. Rafter, R. Rees-Owen, A. Ridgwell, B. Taylor, A. Burke. (2020) Overturning circulation, nutrient limitation, and warming in the Glacial North Pacific. Science Advances. doi/10.1126/sciadv.abd1654
22. Díaz-Asencio, M., J-C. Herguera, P.T. Schwing, R.A. Larson, G.R. Brooks, J. Southon, P.A. Rafter. (2020) Sediment accumulation rates and vertical mixing of deep-sea sediments derived from 14C and 210Pb in the southern Gulf of Mexico. Marine Geology. doi.org/10.1016/j.margeo.2020.106288
21. Robinson, R.S., C.A. Jones, R.P. Kelly, A. Love, I. Closset, P.A. Rafter, M. Brzezinski. (2020) A Test of the Diatom‐Bound Paleoproxy: Tracing the Isotopic Composition of Nutrient‐Nitrogen Into Southern Ocean Particles and Sediments. Global Biogeochemical Cycles. doi.org/10.1029/2019GB006508
20. Saito, M., M.R. McIlvin, D.M. Moran, A.E. Santoro, C.L. Dupont, P.A. Rafter, J.K. Saunders, D. Kaul, C.H. Lamborg, M. Westley, F. Valois, J.B. Waterbury. (2020) Abundant nitrite oxidoreductase metalloenzyme in the mesopelagic metaproteome of Pacific OMZ extremities. Nature Geoscience. doi.org/10.1038/s41561-020-0565-6
19. Rafter, P.A., J.D. Carriquiry, J-C. Herguera, M.P. Hain, E.A. Solomon, J.R. Southon. (2019) Anomalous >2000 year old surface ocean reservoir age as evidence for deglacial geologic carbon release. Geophysical Research Letters. doi.org/10.1029/2019GL085102
18. White, M., P.A. Rafter, B.M. Stephens, S.D. Wankel, L.I. Aluwihare. (2019) Recent increases in water column denitrification in the seasonally suboxic bottom waters of the Santa Barbara Basin. Geophysical Research Letters. doi.org/10.1029/2019GL082075
17. Rafter, P.A., A. Bagnell, D. Marconi, T. DeVries. (2019) Global trends in marine nitrate N isotopes from observations and a neural network-based climatology. Biogeosciences. doi.org/10.5194/bg-16-2617-2019
16. Robinson, R.S., C.A. Jones, R.P. Kelly, P.A. Rafter, J. Etourneau, P. Martinez. (2019) Contraction of the eastern equatorial Pacific high productivity zone across the Mid-Pleistocene Transition. Geophysical Research Letters. doi.org/10.1029/2018GL081315
15. Lund, D.C., F.J. Pavia, E.I. Seeley, S.E. McCart, P.A. Rafter, K.A. Farley, P.D. Asimow, R.F. Anderson. (2019) Hydrothermal scavenging of 230Th on the Southern East Pacific Rise during the last deglaciation. Earth and Planetary Sciences Letters. doi.org/10.1016/j.epsl.2018.12.037
14. Smart, S., R. Haojia, S.E. Fawcett, R. Schiebel, M. Conte, P.A. Rafter, K.K. Ellis, M.A. Weigand, S. Oleynik, G.H. Haug, D. Sigman. (2018) Ground-truthing the planktic foraminifer-bound nitrogen isotope paleo-proxy in the Sargasso Sea. Geochimica et Cosmochimica Acta. doi.org/10.1016/j.gca.2018.05.023
13. Rafter, P.A., J-C. Herguera, J. R. Southon. (2018) Extreme deglacial 14C depletion observed in epifaunal and infaunal benthic foraminifera. Climate of the Past. doi.org/10.5194/cp-14-1977-2018.
12. Lehmann, N., J. Granger, M. Kienast, K.S. Brown, P.A. Rafter, G. Martínez-Méndez, M. Mohtadi. (2018) Isotopic evidence for the evolution of subsurface nitrate in the Western Equatorial Pacific. JGR-Oceans. doi.org/10.1002/2017JC013527.
11. Rafter, P.A., D.M. Sigman, K.R.M. Mackey. (2017) New production requires recycled iron in the eastern equatorial Pacific. Nature Communications. doi.org/10.1038/s41467-017-01219-7.
10. Rafter, P.A., S.C. Sanchez, J. Ferguson, J.D. Carriquiry, E.R.M. Druffel, J.A. Villaescusa, J. Southon. (2017) Eastern tropical North Pacific coral radiocarbon reveals North Pacific Gyre Oscillation variability. Quaternary Science Reviews. doi.org/10.1016/j.quascirev.2017.02.002.
09. Marconi, D., D.M. Sigman, K.L. Casciotti, E.C. Campbell, M.A. Weigand, S.E. Fawcett, A.N. Knapp, P.A. Rafter, B.B. Ward, G.H. Haug. (2017) Tropical Dominance of N2 Fixation in the North Atlantic Ocean. Global Biogeochemical Cycles. doi.org/10.1002/2016GB005613.
08. Marconi, D., S. Kopf, P.A. Rafter, and D.M. Sigman. (2017) Aerobic respiration along isopycnals leads to overestimation of the isotope effect of denitrification in the ocean water column. Geochimica et Cosmochimica Acta. doi.org/10.1016/j.gca.2016.10.012.
07. Rafter, P.A. and D.M. Sigman. (2016) The spatial and temporal variation of upper equatorial Pacific nitrate utilization. Limnology and Oceanography. doi.org/10.1002/lno.10152.
06. Marconi, D., M.A. Weigand, P.A. Rafter, M.R. McIlvin, M. Forbes, K.L. Casciotti, D.M. Sigman. (2015) Nitrate isotope distributions on the US GEOTRACES North Atlantic cross-basin section. Marine Chemistry.doi.org/10.1016/j.marchem.2015.06.007.
05. Fripiat, F., D.M. Sigman, S.E Fawcett, P.A. Rafter, M.A. Weigand, J.L. Tison. (2014) Sea Ice nitrogen biogeochemical dynamic from an isotopic perspective. Global Biogeochemical Cycles. doi.org/10.1002/2013GB004729.
04. Rafter, P.A., P.J. DiFiore, and D. M. Sigman. (2013) Coupled nitrate nitrogen and oxygen isotopes and organic matter remineralization in the Southern and Pacific Oceans. JGR-Oceans. doi.org/10.1002/jgrc.20316.
03. DeVries, T., C. Deutsch, P.A. Rafter, and F. Primeau. (2013) Marine denitrification rates determined from a global 3-dimensional inverse model. Biogeosciences. doi.org/10.5194/bg-10-2481-2013.
02. Rafter, P.A. and C.D. Charles. (2012) Pleistocene equatorial Pacific dynamics inferred from zonal gradients in nitrogen isotopes. Paleoceanography. doi.org/10.1029/2012PA002367.
01. Rafter, P.A., C.D. Charles, D.M. Sigman, J. Kaiser, G.H. Haug. (2012) Subsurface tropical Pacific nitrogen isotopic composition of nitrate: biogeochemical signals and their transport. Global Biogeochemical Cycles. doi.org/10.1029/2010GB003979.
00. Rafter, P.A., S.L. Jaccard, E.D. Galbraith, T. Kiefer, and M. Kienast. (2012) The nitrogen cycle in the ocean, past and present: 2nd NICOPP meeting report. PAGES Newsletter. doi.org/10.22498/pages.20.1.48.
MANUSCRIPTS IN PREPARATION AND AVAILABLE UPON REQUEST
Rafter, P.A. et al. (IN PREP) Eastern Pacific carbon chemistry after the ice age: gaining insight into a persistent carbon cycle mystery.
Rafter, P.A., K. Karnauskas, S. Sanchez, F. Pavia, D. Meegan-Kumar, J.W. Baldwin. (IN PREP) Ice age winds: Interhemispheric air-sea connections between the Atlantic and the Pacific.
GRANTS/FELLOWSHIPS: $1,289,978 total
NSF P4Climate. AGS-2303599. Collaborative Research: Characterizing Northern Hemisphere Atmospheric Variability from Central American Wind Gap-Induced Upwelling. $490,996. Rafter Lead PI. 2023-CURRENT.
Ocean Carbon Biogeochemistry (OCB) Program. Funding for Workshop and Working Group on identifying key knowledge gaps in “Measurement, Reporting, and Verification” of marine carbon dioxide removal. $67,356. Rafter Co-PI. 2021-2023.
Ocean Memory Seed Grant (Art / Science Collaboration). An analog analysis of the ocean and climate: Exploring Ocean Memory and the materiality of historic data. $10,000. Rafter Lead PI. 2020.
NSF OCE-20132340. Collaborative Research with Mathis Hain (UCSC). Uncovering marine carbon chemistry dynamics during the deglaciation with boron isotopes and radiocarbon. $222,510. Rafter Lead PI. 2020-2024.
NSF OCE-2015647 Eastern Pacific carbon chemistry after the ice age: gaining insight to a persistent mystery $326,148. Rafter Lead PI. 2019-CURRENT.
UCI Undergraduate Research Opportunities Program with Ryan Owings $400. 2020
UCI Undergraduate Research Opportunities Program with Megan Ngo $400. 2020
UCI Undergraduate Research Opportunities Program with Alan Yue $400. 2020
UCI Undergraduate Research Opportunities Program with Jazmin Sanchez. $500. 2019
UC-MEXUS. Is the Gulf of California a source of the greenhouse gas carbon dioxide to the atmosphere? $1,000. 2018.
GEOTRACES / PAGES. Trace element and isotope proxies in paleoceanography: $3,000. 2018.
NSF MG&G Research Experience for Undergrads. Rafter Lead PI. $15,000. 2018.
UCI Undergraduate Research Opportunities Program with Chassidy Manlapid and Matthew Chan. $500. 2018.
NSF OCE-1636005. Analytical and modeling training program for paleo-pCO2 reconstructions. $1,500. 2018.
COMER Science and Education Foundation. Searching for enhanced seafloor volcanism and carbon flux during the last deglaciation. $14,000. Rafter Lead PI. 2017.
NSF OCE-1635610. Targeted equatorial Pacific foraminifera-bound N isotope measurements: implications for a rare record of nutrient dynamics and the El Niño-Southern Oscillation. $99,000. Rafter Lead PI. 2016-2019.
UCI Undergraduate Research Opportunities Program with Diana Nguyen. $468. 2016.
UCI Undergraduate Research Opportunities Program with Gabrielle Lee. $500. 2015.
UCI Undergraduate Research Opportunities Program with Johann Lopez. $1,200. 2015.
Ocean Drilling Program Schlanger Fellowship (NSF-sponsored). $30,000. 2005.
California Space Institute Fellowship (UC-sponsored). $5,000. 2004.
PENDING GRANTS
NSF OCE. Collaborative Research: Carbon storage and ventilation in the deepest Indian Ocean since the last ice age. Rafter Lead PI ($649,658)
NSF Science Technology Center. Center for the Integrated Assessment of Ocean CDR (‘CIAO-CDR’). Ridgwell Lead PI ($30,000,000)
UNFUNDED PROPOSALS (useful to see)
NSF OCE. Collaborative Proposal: Estimating and ground-truthing the additionality of marine Carbon Dioxide Removal (mCDR): How useful are C isotopes for quantifying air-sea CO2 transfer? Rafter Lead PI ($411,483 is Rafter portion)
NOAA mCDR: Testing for durability, efficacy, and detectability of Ocean Alkalinity Enhancement in the California Current System. Rafter Lead PI ($1,888,037 total)
NSF MG&G Carbon storage and release from the deep, glacial Indian Ocean. Rafter Lead PI ($596,481)
California Climate Action Grant. Mitigating Severe Floods for Underserved Communities: A Natural or Social Disaster? Kirby Lead-PI ($1,846,421).
NSF EAR: Equipment Upgrade: Continued support for carbon and nitrogen elemental and stable isotope analyses at UC Irvine’s KCCAMS User Facility. Rafter Lead PI ($400,440)
HONORS, AWARDS, PLENARY TALKS.
Plenary Speaker for Ocean Carbon Biogeochemistry Summer Meeting. WHOI. 2024.
AGU Outstanding Reviewer for Paleoceanography & Paleoclimatology 2023
Plenary Speaker for Kavli Frontiers of Science. New Methods and Considerations for Marine Carbon Dioxide Removal and Climate Change Mitigation. 2023
Plenary Speaker for International Conference on Paleoceanography. Bergen, Norway. 2022.
UROP Faculty Mentor of the Month. 2019.
Plenary Speaker for GEOTRACES/PAGES synthesis workshop. Aix, France. 2018.
AGU Outstanding Reviewer for GBC and GRL. 2017.
Plenary Lecture for Wally Broecker’s Changelings / Comer Foundation Climate Conference. 2017.
NSF Marine Geoscience Leadership Fellow. 2013.
NSF Ocean Leadership Early Career Geoscience Symposium. 2011.
Ocean Drilling Program Schlanger Fellowship. 2005.
EPA National Network of Environmental Management Studies Fellowship. 2000.
Florida Institute of Technology Outstanding Senior in Environmental Science. 2000.
Florida Institute of Technology Outstanding Junior in Environmental Science. 1999.
SCIENTIFIC COMMUNITY / OUTREACH
Organizer for marine Carbon Dioxide Removal (CDR) Session at OCB Meeting (2023)
Steering Committee for Marine Carbon Dioxide Removal Workshop / Working Group (2021-2023)
Member of marine Carbon Dioxide Removal (CDR) Measurement, Reporting, and Verification Working Group (2022)
Organizer for marine Carbon Dioxide Removal (CDR) Workshop on Measurement, Reporting, and Verification (2022)
Organizer for OCB Meeting: Marine Carbon Dioxide Removal (2020-2022)
First-Generation BEES (Becoming an Environmental & Earth Scientist) (2020-present). Founder.
So Cal BOOM (Biogeochemical Ocean Observations & Models)—symposium for graduate students (2020-present). Founder.
UCI Inclusive Excellence Committee. 2020-2023.
Ocean Carbon Biogeochemistry Scientific Steering Committee (2020-2023)
The Ocean Memory Project (National Academies sponsored art-science collaboration) (2018-2023). Founding member and Steering Committee Member.
TEACHING EXPERIENCE
OCE6934: Introduction to Marine Biogeochemistry. SP 2025.
UCI ESS15: Introduction to Global Climate Change. SU 2020; SU 2021; SU 2022.
Guest Lecture for K. Johnson at UCI: “Isotope Geochemistry”. 2018.
Guest Lecture for J. Ferguson at UCI: “The Ocean and Atmosphere”. 2018.
Guest Lectures for Kathleen Johnson at UCI: “Introduction to Paleoclimatology”. 2015.
Guest Lecture for Jorge Sarmiento at Princeton University: “Ocean Biogeochemistry”. 2012.
Teaching Assistant for Chris Charles, Intro. Environmental Systems, SIO, UCSD. 2008.
Teaching Assistant, Lihini Aluwihare, CA Coastal Oceanography, SIO, UCSD. 2007.
Teaching Assistant, Chris Charles, Intro. to Environmental Systems, SIO, UCSD. 2007.
Teaching Assistant, Lynne Talley, Intro. to Environmental Systems, SIO, UCSD. 2006.
Teaching Assistant, Gabi Laske, ERTH/SIO 10: Natural Disasters, SIO, UCSD. 2005.
Teaching Assistant, Gabi Laske, ERTH/SIO 10: The Earth, SIO, UCSD. 2004.
Teaching Assistant, Sam Iacobellis, The Atmosphere, SIO, UCSD. 2003.
Training at the UCSD Center for Teaching Development (CTD). 2003.
MENTORING EXPERIENCE (and known outcomes)
69. Roxanne Mina. USF Graduate Student Researcher. Fall 2025 to present.
68. Macarena Mayor. USF Graduate Student Researcher. PhD member. 2024-Current.
67. Sophia Chernoch. USF Graduate Student Researcher. 2024-Current.
66. Hannah Burd. Eckerd College undergraduate student researcher. 2024-Current.
65. Mackenzie Cole. Eckerd College undergraduate student researcher. 2024-Current.
64. Aidan Hess. Eckerd College undergraduate student researcher. 2024. Attending college
63. Alana Buffardi. Eckerd College undergraduate student researcher. 2024-Current.
62. Alexis Vargas. USF Graduate Student Researcher. 2024. Lab manager at CMS
61. Taylor Hart. UCI Undergraduate Research. 2023-2024. Attending college
60. Arhaan Lahoti. UCI High School Research. 2023. Applying to college
59. Timothy So. UCI High School Research. 2023. Applying to college
58. Trina So. UCI High School Research. 2023. Applying to college
57. Nuha Khan. UCI High School Research. 2023. Applying to college
56. Cici Del Rivo. UCI Undergraduate Research. 2023-2024. Attending college
55. Chloe Selby. UCI Undergraduate Research. 2023-2023. Attending college
54. Ty Tassinari. UCI Undergraduate Research. 2022-2024. Attending college
53. Tim Kacius. UCI Undergraduate Research. 2022-2024. Attending college
52. Naina Rao. UCI Undergraduate Research. 2022-2024. Attending college
51. Brianna Enriquez. UCI Undergraduate Research. 2022. Attending college
50. Abigail Ruth. Kirubakaran UCI Undergraduate Research. 2022. Attending college
49. Melody Shi. UCI Undergraduate Research. 2022-2023. BS in Earth System Science.
48. Boyu Jiang. UCI Undergraduate Research. 2022. N/A
47. Rohan Vaswani. UCI Undergraduate Research. 2022-2024. Attending college
46. Corina Tostado. UCI Undergraduate Research. 2022-2023. Attending college
45. Olivia Cox. UCI Undergraduate Research. 2022-2024. Applying to graduate school
44. Brianna Chizhevsky. UCI Undergraduate Research. 2022-2023.
43. Jilan Hamden. UCI Undergraduate Research. 2022-2023. Works for the City of Irvine
42. Wynne Young. Corona Del Mar High School Research. 2022. Attending UCLA.
41. Lingyu Wang. UCI Undergraduate Research. 2021-2022. Earned an MS
40. Victoria Yu. UCI Undergraduate Research. 2021-2023. BS in Earth System Science.
39. Jonathan Lambert. Columbia University. PhD thesis committee member. 2022. Lead Scientist at Isometric.
38. Ryan Green. UC Santa Cruz. PhD thesis committee member. 2021-CURRENT.
37. Irene Lilley. Undergraduate Research. 2021-2022. BS in Earth System Science.
36. Janiece Luu. UCI Undergraduate Research. 2020-2022. BS in Earth System Science. Pursuing a Masters in Environmental Science and Management Program at UCSB.
35. Haoyang Liu. UCI Undergraduate Research. 2020-2021. BS in Earth System Science. Pursuing a Masters in Environmental & Water Resources.
34. Ely Khatib. UCI Undergraduate Research. 2020-2022. BS in Earth System Science.
33. Kathy Legaspi. UCI Undergraduate Research. 2020-2022. MBA from SDSU.
32. Yéssica Vanessa Contreras Pacheco. Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE), Baja California. PhD thesis committee member. CURRENT
31. Anthony Meza. UCI Undergraduate research. 2019-2020. BS in Earth System Science. Currently pursuing a PhD at MIT.
30. Ryan Wong Owings. UCI Undergraduate research. 2019-2020. BS in Earth System Science. Pursuing a PhD in Geology at UCSB.
29. Lucas Verde. UCI Undergraduate research. 2019-2020. BS in Earth System Science.
28. Franklin Duffy. summer research volunteer from CSU Boulder. 2019. Research Technician at U Chicago.
27. Megan Lynn Ngo. UCI Senior Thesis. 2019-2021. BS in Earth System Science. Currently pursuing a PhD in Environmental Science at SUNY.
26. Claire Socorro. Weeks UCI Undergraduate research. 2019.
25. Alan Yue. UCI Senior Thesis. 2019-2020. BS in Earth System Science. Fire Controlman Petty Officer 3rd Class US Navy.
24. Megha Rudresh. UCI Undergraduate research. 2017-2019. BS in Earth System Science. Obtained a Masters in Geography at UGA. Currently pursuing a PhD at University of Hawaii.
23. April Naomi Castillo. UCI Undergraduate research. 2019. BA in Environmental Science.
22. Jazmin Amanda Sanchez. UCI Undergraduate research & UCI Senior Thesis. 2018-2019. BS in Earth System Science. Jr. Specialist at UC Irvine Keck Laboratory.
21. Chassidy Manlapid. UCI Undergraduate research. 2018. BA in Environmental Science and Policy. Currently pursuing a Masters student in Sustainability Solutions at Arizona State U.
20. Matthew Chan. UCI Undergraduate research. 2017-2018. BS in Earth System Science.
19. Alyssa Mariah de la Rosa. UCI Undergraduate research. 2017-2018. BS in Earth System Science.
18. Juan Manuel Troncoso. UCI Undergraduate research. 2017. BS in Earth System Science and BA in Spanish. Now Conservation Manager for The Escondido Creek Conservancy.
17. Diana Nguyen. UCI Undergraduate research & UCI Senior Thesis. 2016. BS in Earth System Science.
16. Abigail Ambriz. UCI undergraduate research experience. 2015-2016. BS in Environmental Science, Minor in Global Sustainability.
15. Stephanie Silva. UCI undergraduate research experience. 2015-2016. BS in Earth System Science.
14. Annalysha Lafferty. UCI undergraduate research experience. 2015. BS in Earth System Science.
13. Mina Nada UCI undergraduate research experience. 2015. BS in Earth System Science. Obtained a Masters degree in Geography from CSULB. Currently GIS Technician at Southern California Coastal Water Research Project.
12. Philip Andre Nazareta. UCI undergraduate research experience. 2015. Unknown.
11. Franloie Cruz. UCI undergraduate research experience. 2015. Unknown.
10. Ian Kamus. UCI undergraduate research experience. 2015. BS in Earth System Science. Community Organizer at Pilipino Workers Center.
9. Gabrielle Lee. Undergraduate research and UCI Senior Thesis. 2014-2015. BS in Earth System Science. Obtained a Masters in Nuclear Engineering. Researcher at Los Alamos National Laboratory.
8. Araceli Serrano. UCI undergraduate research experience. 2014-2015. BS in Earth System Science. Currently pursuing a PhD candidate at UCSC.
7. Rachel Coons. UCI undergraduate research experience. 2014. BS in Earth System Science. Now Technical Program Manager at Nvidia, Inc.
6. Johann Lopez. UCI undergraduate research experience. 2014. BS in Earth System Science. Obtained a Masters degree in Earth System Science at UCI.
5. Tyler Tamasi. Princeton University, summer internship. 2012. BS in Chemistry. Currently working on a PhD at MIT.
4. Samantha Csik. Northeastern University, summer internship at Princeton University. 2012. Obtained a Masters degree in Ecology, Evolution, and Marine Biology at UCSB.
3. Lydia Rudnick. Princeton University, junior thesis. 2011. BS in Geosciences. Obtained a Masters degree in Environmental Science and Management.
2. Jacob Kim. Princeton University, summer internship. 2010. Masters degree from University of Pennsylvania.
1. Ulisses Barraza. High School Student (SD Ocean Discovery Institute). 2008. Obtained a BS in Chemical Engineering at UCLA. Plant Manufacturing Engineer II at Baltimore Aircoil
INVITED PRESENTATIONS
University of Texas El Paso. New Methods and Considerations for Marine Carbon Dioxide Removal and Climate Change Mitigation. Nov. 2024
Rowan University. Global climate, the Pacific Ocean, & vertical oceanic chemical reorganization. Sept. 2024.
Ocean Carbon Biogeochemistry Summer Meeting. Plenary Lecture. Iron & Nitrate: Analogs for iron fertilization explained via an iron limitation “flywheel”. June 2024
USGS St Petersburg, FL. Marine carbon cycling yesterday, today, and tomorrow. March 2024
KAVLI Frontiers of Science. Plenary Lecture. New Methods and Considerations for Marine Carbon Dioxide Removal and Climate Change Mitigation. Jan. 2024
Pomona College. Global climate, the Pacific Ocean, & vertical oceanic chemical reorganization. Dec. 2023.
NOAA Ecosystem Sciences and Management Working Group. MRV for mCDR. Dec. 2023.
Stanford University. Global climate, the Pacific Ocean, & vertical oceanic chemical reorganization. Nov. 2023.
USC. Global climate, the Pacific Ocean, and vertical oceanic chemical reorganization. Nov. 2023.
Laboratoire des Sciences du Climat et de l'Environnement. Marine carbon cycling: Yesterday, Today, and Tomorrow. June. 2023.
UCSD-SIO. Global climate, the Pacific Ocean, and vertical oceanic chemical reorganization. May 2023.
OSU. Global climate, the Pacific Ocean, and vertical oceanic chemical reorganization. May 2023.
UCSC. Global climate, the Pacific Ocean, and vertical oceanic chemical reorganization. May 2023.
UCSB. Global climate, the Pacific Ocean, and vertical oceanic chemical reorganization. April 2023.
USF. Marine carbon cycling: Yesterday, Today, and Tomorrow. March 2023.
U of AZ. Reorganization of deep-sea circulation and carbon storage after the last ice age. Feb. 2023.
WHOI. Reorganization of deep-sea circulation and carbon storage after the last ice age. Jan. 2023.
NOAA CDR Task Force meeting. Can we use C isotopes for MRV? October 2022.
IntCal Focus Group Meeting. Reorganization of deep-sea circulation and carbon storage after the last ice age. Sept. 2022.
International Conference on Paleoceanography. Plenary Lecture. Reorganization of deep-sea circulation and carbon storage after the last ice age. Aug. 2022.
UCI. Radiocarbon at the bottom of the Ice Age ocean. June 2022.
UC Riverside. Radiocarbon at the bottom of the Ice Age ocean. May 2022.
American Museum of Natural History. Radiocarbon at the bottom of the Ice Age ocean. Oct. 2021.
University of Delaware. Radiocarbon at the bottom of the Ice Age ocean. May 2020.
UCLA. Radiocarbon at the bottom of the Ice Age ocean. Nov. 2020
WHOI. Old ocean carbon and the deglaciation: A unifying theory. Oct. 2020.
Dalhousie University. Rethinking iron fertilization and the marine biological pump from seasonal to ice age timescales. Mar. 2020
UNCW. Rethinking iron fertilization and the marine biological pump from seasonal to ice age timescales. Feb. 2020.
Laguna Woods Earth Day. The fundamental causes of climate change and some solutions. Apr. 2019.
Belhaven Middle School. Linwood, NJ. How to become an Earth scientist. 2019.
UC Irvine. Anomalous >2000 year old surface ocean reservoir age as evidence for deglacial geologic carbon release. 2019.
UConn. Anomalous >2000 year old surface ocean reservoir age as evidence for deglacial geologic carbon release. 2019.
UC Santa Cruz. Rethinking iron fertilization & the marine biological pump on seasonal to ice age timescales. Jan. 2019.
GEOTRACES/PAGES workshop (Aix, France). Plenary Lecture. Rethinking iron fertilization & the marine biological pump on seasonal to ice age timescales. Dec. 2018.
University of South Florida. Rethinking iron fertilization & the marine biological pump on seasonal to ice age timescales. Nov. 2018.
University of Washington. Rethinking iron fertilization & the marine biological pump on seasonal to ice age timescales. Oct. 2018.
University of Southern California. Rethinking iron fertilization & the marine biological pump on seasonal to ice age timescales. Sept. 2018.
Oregon State University. Iron recycling is critical for new primary production in all nitrate-rich, iron-limited ocean regions. Mar. 2018.
Wally Broecker’s Changelings / Comer Foundation Climate Conference. Plenary Lecture. A song of Ice and Fire and CO2: linking seafloor volcanism and CO2 efflux during the deglaciation. Oct. 2017.
Gordon Chemical Oceanography. Iron recycling fuels nitrate consumption, new primary production, and the biological pump in most HNLC regions. Jun. 2017.
Rutgers University. A song of Ice and Fire and CO2: linking seafloor volcanism and CO2 efflux during the deglaciation. Apr. 2017.
Pomona College. A song of Ice and Fire and CO2: linking seafloor volcanism and CO2 efflux during the deglaciation. Mar. 2017.
CICESE (Centro de Investigación Cientifica y Educación Superior de Ensenada). A song of Ice and Fire and CO2: linking seafloor volcanism and CO2 efflux during the deglaciation. Mar. 2017.
UCSD-Scripps Institution of Oceanography. Iron recycling drives New Production in HNLC region. Feb. 2017.
UC Riverside. The future of ENSO from Plio-Pleistocene sediments. Oct. 2016.
California Institute of Technology. Iron recycling drives New Production in HNLC region.
Stanford University. How to survive a High Nutrient-Low Chlorophyll region: insight to the internal cycling of iron and nitrogen. Oct. 21, 2015.
UC Santa Barbara. How to survive a High Nutrient-Low Chlorophyll region: insight to the internal cycling of iron and nitrogen. Mar. 31, 2015.
USC. Building a new view of the Plio-Pleistocene tropical climate. Feb. 20, 2015.
Richard Stockton State University of NJ. The past and future of El Niño. May 2014.
UCSD-Scripps Institution of Oceanography. South Pacific respiration and the dual isotopic composition of nitrate. 2014.
California Institute of Technology. 3-Myr history of equatorial Pacific upwelling and Permanent El Niño. 2014.
UC Irvine. 3-Myr history of equatorial Pacific upwelling and Permanent El Niño. Mar. 2014.
Columbia University-Lamont Doherty Earth Observatory. 3-Myr history of equatorial Pacific upwelling and Permanent El Niño. Feb. 2014.
Yale University. 3-Myr history of eq. Pacific upwelling and Permanent El Niño. Jan. 2013.
Woods Hole Oceanographic Institution. South Pacific respiration and the dual isotopic composition of nitrate. Dec. 2013.
Woods Hole Oceanographic Institution. Nitrate isotopes as a pseudo-sediment trap. May 2013.
Middle Township High School. Science is NOT boring: isotopes and the ice ages. Mar. 22, 2013.
UNC-Wilmington. Science from the Sea Surface through the Seafloor. Feb. 2013.
Coastal Carolina University. Science from the Sea Surface through the Seafloor. Feb. 2013.
Dalhousie University. Nitrogen Cycle in the Ocean, Past and Present Workshop. July 2011.
Princeton University. Tales from the South Pacific: Brought to you by measurements of nitrate d15N. May 2011.
Rutgers University. Tropical reign? A 1.2 million year record of nutrient dynamics in the eastern equatorial Pacific. Feb. 2010.
CICESE (Centro de Investigación Cientifica y Educación Superior de Ensenada)
(Ensenada, Mexico). A 1.2-Myr record of eastern equatorial Pacific thermocline depth from sediment nitrogen isotopes. 2010.
Princeton University. Tropical Pacific d15N-NO3-: a tracer of denitrification, N2 fixation, and subsurface circulation. Sep. 2009.
UCLA. New insight to tropical Pacific circulation using isotopic tracers. Jan. 2009.
USC. Tropical Pacific nutrient dynamics of the past 1-Myr. Mar. 2008.
OTHER ORAL PRESENTATIONS (LEAD)
American Geophysical Union Fall Meeting. The carbon isotope fingerprint of ocean alkalinity enhancement. Dec. 2024
Ocean Sciences Meeting. The carbon isotope fingerprint of Ocean Alkalinity Enhancement. March 2024.
American Geophysical Union Fall Meeting. Glacial-interglacial changes in Central American Gap winds. Dec. 2023.
American Geophysical Union Fall Meeting. Reorganization of deep-sea circulation and carbon storage after the last ice age. Dec. 2022.
Ocean Sciences Meeting. Differential marine nutrient cycling decouples the canonical f-ratio from new primary production and carbon export. March 2022.
American Society of Limnology & Oceanography. Differential marine nutrient cycling decouples the canonical f-ratio from new primary production and carbon export. June 2021.
American Geophysical Union Fall Meeting. Radiocarbon at the bottom of the ice age ocean. Dec. 2021.
American Geophysical Union Fall Meeting. An eastern equatorial nutrient tongue during the warm Pliocene. Dec. 2021.
Goldschmidt Conference (Geochemical Society). New measurements and compilation provide a 25,000 year view of global deep-sea radiocarbon. Jun 2021.
Ocean Sciences Meeting. New production / nitrate consumption requires recycled iron in the major HNLCs. March 2018.
Goldschmidt Conference (Geochemical Society). New production / nitrate consumption requires recycled iron in most HNLCs. Aug. 2017.
American Geophysical Union Fall Meeting. The invisible hand of iron recycling on nitrate consumption and our nitrate proxy records. Dec. 2016.
Ocean Sciences Meeting. Surviving a High Nutrient-Low Chlorophyll region: insights to nutrient internal cycling, new production, and the biological pump in the tropical Pacific. March 2016.
American Geophysical Union Fall Meeting. What can nutrients tell us about the Pliocene equatorial Pacific? Dec. 2014.
Ocean Sciences Meeting. Equatorial Pacific nutrient dynamics for the past 3-ish million years. March 2014.
Goldschmidt Conference (Geochemical Society). Florence, Italy. South Pacific respiration and the dual isotopic composition of nitrate. Aug. 2013.
American Geophysical Union Fall Meeting. 1 million years of eastern equatorial Pacific upwelling using nitrate and sediment d15N. Dec. 2012.
Ocean Sciences Meeting. Tropical Pacific d15N of nitrate: surprising highs and lows. Mar. 2010.
POSTER PRESENTATIONS (LEAD)
American Geophysical Union Fall Meeting. Characterizing the spatial distribution and chemistry of geologic carbon input to the Eastern Tropical North Pacific before and after the last ice age. Dec. 2023.
Ocean Carbon Biogeochemistry (OCB) Summer Meeting. Reorganization of global ocean overturning and carbon storage since the last glacial maximum. June 2023.
American Geophysical Union Fall Meeting. Central American topographic gap wind changes since the last ice age. Dec. 2022.
International Conference on Paleoceanography. An eastern equatorial Pacific nutrient tongue during the warm Pliocene. Aug. 2022
American Geophysical Union Fall Meeting. Both 'glassy' and 'frosty' forams show the low deglacial 14C/C anomaly. Dec. 2020.
American Geophysical Union Fall Meeting. Agreement of bulk sedimentary and foraminifera-bound nitrogen in the detection of a 4 million year trend in equatorial Pacific δ15N. Dec. 2019.
International Conference on Paleoceanography. Agreement of bulk sedimentary and foraminifera-bound nitrogen in the detection of a 4 million year trend in equatorial Pacific δ15N. Aug. 2019.
International Conference on Paleoceanography. The Southern Ocean stratification hypothesis: A critical role for iron recycling. Aug. 2019.
International Conference on Paleoceanography. Anomalous >2000 year old surface ocean 14C: evidence for enhanced bicarbonate flux via Anaerobic Oxidation of Methane? Aug. 2019.
Ocean Carbon Biogeochemistry Summer Workshop. Anomalous >2000 year old surface ocean 14C: evidence for enhanced bicarbonate flux via Anaerobic Oxidation of Methane?. June 2019.
Tropical Pacific Observing System Workshop. Tropical Pacific nutrient biogeochemistry tells us these things. April 2018.
American Geophysical Union Fall Meeting. Increased volcanism and carbon flux in the Gulf of California after the last ice age. Dec. 2017.
Gordon Conference on Chemical Oceanography. Recycled iron fuels nitrate consumption and new primary production in most high nutrient, low chlorophyll (HNLC) regions. Aug. 2017.
International Conference on Paleoceanography. Radiocarbon (14C) history of Gulf of California surface waters from the last ice age to today: signs of old carbon during the deglaciation. Aug. 2016.
American Geophysical Union Fall Meeting. Eastern tropical north Pacific coral radiocarbon reveals North Pacific Gyre Oscillation (NPGO) variability. Dec. 2015.
Gordon Conference on Chemical Oceanography. Dissecting a High Nutrient, Low Chlorophyll (HNLC) region. Part 1: The Equatorial Pacific. June 2015.
International Conference on Paleoceanography. Equatorial Pacific nutrient and upper ocean dynamics over the past 3-Myr: insight to Permanent El Niño. Aug. 2013.
NSF Site Visit for SOBOM (later SOCCOM). Coupled nitrate isotopes reveal previously “hidden” nutrient dynamics in Subantarctic and lower latitude waters. Oct. 2012.
Gordon Conference on Chemical Oceanography. Dual isotopic constraints on remineralized nitrate from the high to low latitude Pacific Ocean. June 2011.
OTHER PRESENTATIONS (CO-AUTHOR) *Student-led
*Ocean Sciences Meeting. Using Carbon Isotopes and Regional Ocean Modeling to Trace the Impact of Ocean Alkalinity Enhancement in the California Current System. Ryan A Green, Patrick A Rafter, Christopher A Edwards, Jerome Fiechter, Mathis Hain. Mar. 2024.
Ocean Sciences Meeting. Carbonate dissolution fluxes in deep-sea sediments as determined from in situ porewater profiles in a transect across the saturation horizon. Jaclyn E Pittman Cetiner, William Berelson, Nick Rollins, Xuewu Liu, Frank J Pavia, Anna R Waldeck, Sijia Dong, Kalla Fleger, Holly Barnhart, Matthew Quinan, Rucha Wani, Patrick A Rafter, Andrew D Jacobson, Robert Byrne, Jess F Adkins. Mar. 2024.
American Geophysical Union. Is Sedimentary Methane Mobilization in the Bering Sea Synchronous with Dansgaard-Oeschger Events? Dasha Belobokova, Patrick A Rafter, Mea S Cook. Dec. 2023.
*American Geophysical Union. Fingerprinting the Effects of Ocean Alkalinity Enhancement in the California Current System Regional Ocean Model with Carbon Isotopes. Ryan A Green, Mathis Hain, Patrick A Rafter, Christopher A Edwards, Jerome Fiechter. Dec. 2023.
American Geophysical Union. A Southeast Indian Ocean Case Study of Post-Depositional Influences on Foraminiferal Radiocarbon. Natalie Umling, Elisabeth L Sikes, Patrick A Rafter, Hilairy Ellen Hartnett, Aidan Starr, Zanna Chase, Nathalie Goodkin. Dec. 2023.
American Geophysical Union. Climatic controls on the tropical Pacific-Atlantic inter basin pressure gradient: The view from glacial-interglacial changes in Central American Gap winds. Patrick A Rafter, Jane Wilson Baldwin, Kristopher B Karnauskas, Frank J Pavia, Sara C Sanchez. Dec. 2023
EGU General Assembly Conference. Nutrient fluxes in the greater Agulhas Current region: signals of local and remote Indian Ocean nitrogen cycling. Tanya Marshall, Daniel Sigman, Lisa Beal, Alan Foreman, Alfredo Martínez-García, Stéphane Blain, Ethan Campbell, François Fripiat, Robyn Granger, Eesaa Harris, Gerald Haug, Dario Marconi, Sergey Oleynik, Patrick Rafter, Raymond Roman, Kolisa Sinyanya, Sandi Smart, Sarah Fawcett. May 2023
International Conference on Paleoceanography. Deglacial-Holocene Pulses of Old Carbon-Enriched Mediterranean Water Masses: Implications for Aragonite Mounds Growth and Global Carbon Cycle. María De la Fuente, M Selvaggi, Claudio Lo Iacono, L Skinner, A Sadekov, P Scott, P Zhang, Hai Cheng, P Rafter, N Haghipour, Eduardo Paredes, Leopoldo David Pena González, Albert Català, Isabel Cacho Lascorz. Aug. 2023
*American Geophysical Union. Characterizing Geologic Carbon Release as an Explanation for Deglacial Δ 14 C Anomalies within the Eastern Tropical North Pacific. Ryan Green, Mathis Hain, Patrick A Rafter, William Robert Gray, James William Buchanan Rae, Christopher Sun. Dec. 2022
American Geophysical Union. The role of the subantarctic in carbon escape from the northern lip of the Southern Ocean during the last deglaciation. Natalie Umling, Elisabeth L Sikes, Patrick A Rafter, Nathalie Goodkin. Dec. 2022
*American Geophysical Union. Constraints on Geologic Carbon Release at the End of the Last Ice Age From the Planetary Radiocarbon Budget. R Green, Mathis Hain, Patrick A Rafter. Dec. 2020
American Geophysical Union. Geochemical variation in hydrothermal sediments at the Endeavour Hydrothermal Field, Juan de Fuca Ridge. Melissa Mills, Laurence A Coogan, Jay T Cullen, Patrick A Rafter. Dec. 2020
American Geophysical Union. Sedimentology of Glacial Lake Core from Gokyo Valley, Everest Region, Nepal. Ananta P Gajurel, Mary Hubbard, Bibek Giri, Sanjeet Maka, Patrick A Rafter, Aaron E Putnam, Aurora C Elmore, Alex Tait, Paul Andrew Mayewski. Dec. 2020
EGU General Assembly Conference. Release of old carbon from the deep South Pacific during the last deglaciation. Yuhao Dai, Jimin Yu, Patrick Rafter. Jun. 2020.
American Geophysical Union Fall Meeting. Modern Ocean Ground-truthing of Planktic Foraminifera-bound Nitrogen Isotopes. Sandi Smart, Haojia Abby Ren, Fawcett Sarah, Ralf Schiebel, Maureen H Conte, Patrick A Rafter, Karen K Ellis, Alfredo Martinez-Garcia, Mira A Weigand, Sergey Oleynik, Alakendra N Roychoudhury, Gerald Hermann Haug, Daniel Mikhail Sigman. Dec. 2018
American Geophysical Union Fall Meeting. Enhanced Zonal Asymmetry in the Equatorial Pacific During the Last Deglaciation Based on Foraminifera-bound Nitrogen Isotopes. Haojia Abby Ren, Yi-Chi Chen, Jimin Yu, Patrick A Rafter, Sergey Oleynik, Daniel Mikhail Sigman. Dec. 2018
American Chemical Society. Abundant mesopelagic metalloenzymes in the Pacific oxygen minimum zone. Mak Saito, Matthew McIlvin, Dawn Moran, Alyson Santoro, Chris Dupont, Carl Lamborg, Patrick Rafter. Mar. 2018
Ocean Sciences Meeting. Nitrate Isotope Variability in the Western Equatorial Pacific: Tracing Ocean Circulation and Nitrogen Transformation Processes. Markus Kienast, Nadine Lehmann, Julie Granger, Kevin Sidney Jorden Brown, Patrick A Rafter, Gema Martinez-Mendez, Mahyar Mohtadi. Mar. 2018
Ocean Sciences Meeting. Inter-annual Variations in Nitrogen Loss in the Seasonally Suboxic Bottom Waters of the Santa Barbara Basin. Margot Elizabeth White, Patrick A Rafter, Brandon M Stephens, Zoe Sandwith, Daniel Mikhail Sigman, Scott D Wankel, Lihini Aluwihare. Mar. 2018
American Geophysical Union Fall Meeting. Strengthening of the Eastern Tropical North Pacific Oxygen Minimum Zone during Marine Isotope Stage 3 despite the intensification of Dansgaard-Oeschger and Heinrich events. Konstantin Choumiline, Timothy W Lyons, Jose D Carriquiry, Ligia L Perez-Cruz, Robert Raiswell, Luc Beaufort, Patrick A Rafter. Dec. 2017
Ocean Sciences Meeting. Mak A Saito, Matthew McIlvin, Alyson E Santoro, Dawn M Moran, Christopher L Dupont, Patrick A Rafter, Carl H Lamborg. Prevalence of Metalloenzymes in Oxygen Minimum Zones Extremities: Implicit Widespread Mesopelagic Nitrogen Cycling Activity and Potential Impacts of Deoxygenation on Nitrogen . Mar. 2016
Ocean Sciences Meeting. Sandi Smart, Haojia Abby Ren, Sarah E Fawcett, Maureen H Conte, Patrick A Rafter, Karen K Ellis, Mira A Weigand, Daniel Mikhail Sigman. Ground-truthing the Foraminifera-bound Nitrogen Isotope Paleo-proxy in the Modern Sargasso Sea. Mar. 2016
American Geophysical Union Fall Meeting. MM Tremblay, M Straub, KK Ellis, X Wang, PA Rafter, DM Sigman, GH Haug, JR Toggweiler. Nutrient conditions in the North Atlantic during the last glacial period. Dec. 2011
American Geophysical Union Fall Meeting. X Wang, DM Sigman, D Sinclair, RM Sherrell, PA Rafter, H Ren, K Cobb, A Weigand, S Oleynik. Nitrogen isotopes of coral skeleton-bound organic matter and a 20-year record from Central Equatorial Pacific. Dec. 2011.
RESEARCH FIELD EXPERIENCE (Select)
Project director. Sargasso Sea. CTD, plankton tows, in-situ filtering and more (November BATS cruise). 7 days on RV Atlantic Explorer. 2013.
Project director. Sargasso Sea. CTD, plankton tows, in-situ filtering and more (April BATS cruise). 7 days on RV Atlantic Explorer. 2013.
Project director. Sargasso Sea. CTD, plankton tows, in-situ filtering and more (November BATS cruise). 5 days on RV Atlantic Explorer. 2012.
Project director. Sargasso Sea. CTD, plankton tows, in-situ filtering and more (July BATS cruise). 5 days on RV Atlantic Explorer. 2012.
Project director. Sargasso Sea. CTD, plankton tows, in-situ filtering and more (April Bermuda Atlantic Time Series (BATS) cruise). 5 days on RV Atlantic Explorer. 2012.
Multi-coring, box-coring, seawater sampling in the Santa Barbara Basin. 5 days on the RV Sproul. 2008.
Gravity-coring, dredge recovery, seawater sampling in the Arabian Sea. 21 days on the RV Roger Revelle. 2007.
Lacustrine sediment freeze-coring on Swamp Lake, Yosemite National Park. 4 days remote field-work. 2006.
CTD technician, seawater sampling in the eastern tropical Pacific. 40 days on the RV Ka’imimoana. 2005.
Sediment pore-water and seawater preparation with M. Kastner. 8 days on the RV Atlantis. 2002.
INCLUSIVE EXCELLENCE TRAINING & SERVICE
Creator/Producer: Southern California Biogeochemical Ocean Observations and Models (SoCal BOOM). An annual symposium begun in Spring 2022, repeated Spring 2023, Fall 2023, and Fall 2024.
Creator/Producer/Director: First Generation BEES (Becoming an Earth & Environmental Sciences) Workshop for local, Orange Country First-Generation college students (several events between 2020-2023).
Improving Student Learning Outcomes Assessment: Diversity, Efficiency, and Effectiveness. Workshop Participant. 2018
Inclusive Teaching for Non-Native English Speakers and International Students. Workshop Participant. 2017.
Helping Promote Academic Success for First Generation Undocumented Students. Workshop Participant. 2017.
UC Irvine First Generation Faculty Initiative. Member. 2017.
UCSD Center for Teaching Development Training. 2003.
SCIENTIFIC ADVISING
Scientific Advisor Board. Sea O2: Marine CDR and DOC. 2025 to present.
Scientific Steering Committee: Ocean Carbon Biogeochemistry Program 2020-2023.
PROFESSIONAL SERVICE
NSF P4CLIMATE Review Panel. March 2025.
Co-Chair: AGU Meeting 2024. PP53F - What Drives Glacial-Interglacial CO2 Cycles? New Insights from Data and Modeling Perspectives Poster (poster session)
USF Representative for Ocean Visions (“a non-profit organization that catalyzes innovation at the intersection of the ocean and climate crises”). 2024-current.
Chair: Ocean Sciences Meeting 2024. Session Leader: Establishing the Scientific Basis for Marine Carbon Dioxide Removal (mCDR) (oral, poster, elightning sessions)
NSF Chemical Oceanography Review Panel. May 2023
Committee Member: UCI Committee for Diversity, Equity, and Inclusivity at the Department of Earth System Sciences 2020-2023
Chair: Goldschmidt Geochemistry Meeting 2020. 14a: Using Multiple Proxies and/Or Multiple Archives to Constrain Earth System Processes
Organizer: So. California Biogeochemistry Ocean Observations and Models Symposium (SoCal BOOM) Mar. 2022; Mar. 2023; Oct. 2023; Oct. 2024.
Organizer: Ocean Memory SEED Workshop (Ocean & Cognition). Location Lewes, DE. Jun 2020.
Chair: Ocean Sciences Meeting: Linking microbial, isotope, micro-nutrient, and other approaches to understand carbon and nutrient cycling in the ocean. Mar. 2020.
Organizer: Ocean Memory Workshop 3.0. Catalina Island, California. 2019.
Chair: Ocean Sciences Meeting: Building biogeochemical bonds: Identifying the influence of macro and micro-nutrient cycling on marine carbon and nitrogen. Mar. 2018
Chair: AGU: Linking the fluid and solid Earth: The role of terrestrial and submarine volcanism in the Plio-Pleistocene ice ages. Dec. 2017
Chair: Goldschmidt Geochemistry: Marine Biogeochemistry at a Range of Scales: The Global Ocean and Polar Atmosphere-Sea Ice-Ocean Systems. Jun. 2016.
Chair: Ocean Sciences: Mode and Intermediate Waters: Their Contributions to Physical, Biological, Chemical, and Climate Processes. Mar. 2016.
Chair: Goldschmidt Geochemistry: 17c: Changing ocean oxygen: Past, present, future. Jun 2013.
Reviewer: AGU-Geophysical Research Letters (>15), AGU-Global Biogeochemical Cycles (>10), AGU-Journal of Geophysical Research-Oceans (>5), AGU-Paleoceanography (>10), Deep Sea Research (2), Earth and Planetary Science Letters (2), EGU-Biogeosciences (2), Limnology and Oceanography (>5), Marine Chemistry (2), National Geographic Society (1), National Research Foundation-South Africa (2), Nature Geoscience (1), NSF OCE-Marine Geology and Geochemistry (>10), NSF OCE-Chemical Oceanography (>5), NSF-International Ocean Discovery Program (2), Philosophical Transactions of the Royal Society A (1). Nature Geoscience (2), Science (1).
MEDIA
UCI News (March 29, 2023). UC Irvine Earth system scientists uncover ice-age shift in Pacific Ocean circulation. https://news.uci.edu/2023/03/29/uc-irvine-earth-system-scientists-uncover-ice-age-shift-in-pacific-ocean-circulation/
news|wise (March 29, 2023). UC Irvine Earth system scientists uncover ice-age shift in Pacific Ocean circulation. https://www.newswise.com/articles/uc-irvine-earth-system-scientists-uncover-ice-age-shift-in-pacific-ocean-circulation?sc=rssn
Newsbreak (March 29, 2023). Scientists uncover ice-age shift in Pacific Ocean circulation. https://www.newsbreak.com/massachusetts-state/2974116365173-scientists-uncover-ice-age-shift-in-pacific-ocean-circulation
Phys.org (March 29, 2023). Scientists uncover ice-age shift in Pacific Ocean circulation. https://phys.org/news/2023-03-scientists-uncover-ice-age-shift-pacific.html
(March 30, 2023). 地球システム科学者が太平洋循環の氷河期シフトを発見(UC Irvine Earth system scientists uncover ice-age shift in Pacific Ocean circulation). https://tiisys.com/blog/2023/03/30/post-119350/
EurekaAlert! (March 29, 2023). UC Irvine Earth system scientists uncover ice-age shift in Pacific Ocean circulation. https://www.eurekalert.org/news-releases/984380
Environmental Monitor (March 7, 2018). Iron Hoarding and Recycling by Aquatic Plants in the Pacific. https://www.fondriest.com/news/iron-hoarding-recycling-aquatic-plants-pacific.htm
Geochemical News (Feb 20, 2018). Top Story: Oceanographers solve mystery of phytoplankton survival in nutrient-poor Pacific.
https://phys.org/news/2018-02-oceanographers-mystery-phytoplankton-survival-nutrient-poor.html
UC Irvine News (Feb 14, 2018). UCI oceanographers solve mystery of phytoplankton survival in nutrient-poor Pacific; Essential iron is hoarded and recycled by the climate-regulating aquatic plants. https://news.uci.edu/2018/02/14/uci-oceanographers-solve-mystery-of-phytoplankton-survival-in-nutrient-poor-pacific/