NOSAMS Graduate Student Internship Program

Two internships are awarded each year to U.S. based graduate students for research at the NOSAMS radiocarbon facility at the Woods Hole Oceanographic Institution. The internships should involve application of radiocarbon measurements to an important oceanographic research problem and/or development of new techniques for radiocarbon measurement and will provide 2 to 6 weeks at NOSAMS.  Available funds will cover all analytical costs (for a modest number of analyses), round-trip travel, accommodation and subsistence while in Woods Hole, but not field work and sampling.

Candidates should submit a two-page proposal outlining the proposed work and motivation and we will begin reviewing submissions starting June 1, 2017.  Proposals and 2 page CVs (both as pdf files) should be sent to along with contact information. Proposals will be judged on the basis of scientific soundness, relevance to capabilities and objectives at NOSAMS, novelty, and scientific impact.  Priority will be given to collaborative research with PI's at NOSAMS, and that show promise for follow-on projects. Internships can be used at a mutually agreed time between September 1, 2017 and August 31, 2018.

Current Interns

Craig Connolly (University of Texas-Austin) is using the radiocarbon content of groundwater dissolved organic carbon (DO14C) and soil near the Alaskan Beaufort Sea coast. He is examining groundwater runoff as a source of DOC to the Beaufort Sea now and its potential to increase as permafrost thaws.

Devon Firesinger (University of South Florida) is using the Gas Ion Source to date foraminifera from a sediment core utilizing a Bayesian accumulation model. He will test whether many dates at lower precision lead to a more comprehensive age model than that produced through traditional radiocarbon dating.

Past Interns


Katie Grant (Cornell University) studied the transfer of soil organic matter to the ocean.

Will Longo (Brown University) studied the radiocarbon ages of lignin phenols as indicators of arctic terrestrial carbon cycling.

Sarah Bercovici (RSMAS, Miami) conducted a radiocarbon study of deep ocean dissolved polysaccharides.


Ning Zhao (MIT/WHOI joint program) worked on sea-surface reservoir and bottom water ventilation ages from coeval wood, plantonic and benthic foraminifera.


Hadley McIntosh (Virginia Institute of Marine Science) examined the radiocarbon ages of source specific fatty acid biomarkers, of terrestrial and aquatic origin, associated with particulate organic matter along the Delaware River and Bay estuarine gradient.

Sophie Hines (California Institute of Technology) studied the radiocarbon ages of different organic and inorganic components of deep sea corals in order to better understand the variable radiocarbon blanks in very old (> 150,000 yr) samples.

Nicole Khan (University of Pennsylvania) worked on chronologies of paleo-environmental and relative sea-level change in mangrove environments, using radiocarbon AMS analyses of sedimentary mangrove leaf, wood, bark and root fragments.

As part of Elizabeth Williams' study of the transport of terrestrial carbon to the marine environment, Elizabeth extracted and determined the radiocarbon content of lignin from differentially treated terrestrial and marine sediment.

Ben Gaglioti (University of Alaska, Fairbanks) studied permafrost behavior during past warming events using ramped pyrolysis.

Brittany Kruger (University of Minnesota, Duluth) isolated fatty acids from sediment to study terrestrial and aquatic inputs to Lake Malawi.

Mara Dougherty isolated biomarkers for sulfate reducing bacteria isolated from Beaufort Sea sediments and measured their radiocarbon content.  She will use the results to shed light on the anaerobic oxidation of CH4.

Brett Walker (University of California) analyzed compound classes isolated from particulate matter collected in a nearshore upwelling environment.

Ian Ball (Scripps Inst. of Oceanography) analyzed lignin phenols standards to test a method he is developing to study the radiocarbon content of lignin in oceanic DOC.

Prosper Zigah (University of Minnesota) analyzed the radiocarbon content of compound classes isolated from high molecular weight DOC collected in Lake Superior.

Jeff Salacup (Brown University) used compound-specific 14C-AMS analysis of sedimentary alkenones from a muddy coastal setting to constrain and reconstruct climatic events in Naragansett Bay.

Andrew Kemp (University of Pennsylvania) used high precision radiocarbon measurements to date the historical onset of accelerated relative sea-level rise.

Branwen Williams (Ohio State University) measured radiocarbon in bamboo corals to study the western Pacific warm pool.

Juzhi Hou (Brown University) developed and HPLC method to isolate and measure the radiocarbon content of lignin phenols extracted from lake sediments.

Haiwei Shen (GSO, University of Rhode Island) developed a method to isolate and measure the radiocarbon content of formaldehyde collected from ambient air.

Andrew Wozniak (Virginia Institute of Marine Science) used both stable and radio- carbon isotopes to characterize the total and water-soluble fractions of organic matter in aerosol samples from watersheds.

Last updated: February 14, 2017