Dr. Gregory C. Johnson
Gregory Johnson is a group co-leader of GOBOP, responsible for Core and Deep Argo at PMEL. A large-scale observational physical oceanographer, he studies the roles of the ocean in climate, including variations of ocean temperature, salinity, and currents, their causes, and effects. When not working he enjoys sailing, painting, and gardening.
Dr. Andrea J. Fassbender
Research Physical Scientist, PMEL
Andrea Fassbender is a group co-leader of GOBOP, responsible for Biogeochemical Argo at PMEL. As an ocean biogeochemist, she uses observations from autonomous platforms, satellites, and ships, as well as output from earth system models, to study the ocean's role in global climate. During her free time she enjoys playing Co Rec soccer, exploring Seattle neighborhoods, spending time with family and friends, and admiring the Pacific Northwest's moss growing capabilities.
Dr. Zachary K. Erickson
Research Oceanographer, PMEL
Zachary Erickson is a group co-leader of GOBOP, responsible for the physical oceanography measurements taken by PMEL as part of GO-SHIP. He is broadly interested in interactions between physical and biological systems, with a focus on carbon export processes. Besides working on ship-based hydrography, he also extensively uses data from floats, gliders, and satellites. When not at a computer or on a boat, he is likely enjoying the outdoors on foot or via bicycle, petting his cat while reading a book, or at a piano bench.
Research Scientist, CICOES
Hartmut Frenzel is a Research Scientist in GOBOP. He provides data management, software development, and delayed mode quality control for PMEL BGC Argo floats. Outside of work he enjoys bicycling, running, hiking, kayaking, traveling, and photography.
Dr. John Lyman
Assistant Researcher, CIMAR
John Lyman is an Assistant Researcher in GOBOP. He is an oceanographer who is interested in both the dynamics of the ocean and the development of new analysis techniques. John also enjoys snowboarding with his boys, climbing with friends and snorkeling with his wife.
Kristy McTaggart is a Physical Oceanographer in GOBOP. She is CTD lead for all NOAA GO-SHIP lines, and also performs delayed-mode quality control of PMEL Argo float data. Kristy enjoys foreign travel, photography, hiking, and walks with friends.
Dr. Elizabeth Steffen
Float Research Coordinator, CIMAR
Elizabeth Steffen takes the lead in physical aspects of the floats in GOBOP—testing, shipping, deploying, and in some cases assembling floats. She analyzes their performance in the field in order to improve performance. Away from floats she enjoys the outdoors including anything on or in the water (diving, sailing, swimming, kayaking) and visiting National Parks.
Dr. Marin Cornec
Marin Cornec is a Postdoctoral Scholar in GOBOP with joint appointments at the University of Washington and NOAA PMEL. He is interested in assessing and quantifying phytoplankton-related biological processes and their implications in the biological carbon pump using a combination of observational data. In his free time, he enjoys hiking, scuba diving, going to movies, and visiting breweries.
Dr. Yibin Huang
Yibin Huang is a Postdoctoral Scholar in GOBOP with joint appointments at the University of California, Santa Cruz and NOAA PMEL. His research interests are centered around biogeochemical cycles in the ocean, with the objective of constraining the mechanism governing the carbon and oxygen cycling in the context of a changing climate. Toward this goal, he combines a wide spectrum of scientific approaches including ship-based incubations, biogeochemical sensor data from autonomous platforms, satellite observations, as well as statistical and biogeochemical modeling. Beyond science, he enjoys swimming, reading and cooking.
Dr. Hannah Joy-Warren
Hannah Joy-Warren is a CICOES Postdoctoral Research Fellow in GOBOP and the Gray Lab in the School of Oceanography at the University of Washington. She is a polar oceanographer studying the role of phytoplankton species composition in carbon flows. She loves biking with her dog, exploring the mountains, doing ceramics, and playing the ukulele.
Dr. Paige Lavin
Postdoc, U. of Maryland
Paige Lavin is a Postdoctoral Research Associate at the Cooperative Institute for Satellite Earth System Studies (CISESS) at the University of Maryland and NOAA's Laboratory for Satellite Altimetry. She is a Visiting Scientist in GOBOP and received her PhD in Oceanography from the University of Washington in 2021. Paige is a large-scale physical oceanographer who combines in-situ and satellite observations to study ocean heat content and sea level rise, often using machine learning methods. She is currently a member of the NASA Ocean Surface Topography Science Team. In her free time, she enjoys cooking, photography, traveling, and playing sports.
Dr. Jonathan Sharp
Jon Sharp is a CICOES Postdoctoral Scholar in GOBOP. He joined the group in 2020 after earning his PhD at the University of South Florida. Jon is primarily focused on marine carbonate chemistry, biogeochemical processes, and pairing oceanographic observations with machine learning techniques to create useful data products. In his free time, Jon enjoys hiking, cooking, and supporting any and all Philadelphia sports teams.
Dr. Yang Xiang
Yang Xiang is a CICOES Postdoctoral Research Fellow in GOBOP and the Quay Lab in the School of Oceanography at the University of Washington. He is a chemical oceanographer studying the composition of marine particles and its roles in the ocean carbon cycle through processes such as scavenging, regeneration, and sinking. In his free time, he enjoys travelling, hiking, watching and playing sports.
Graduate Student, UCSC
Mar Arroyo is a PhD Student in GOBOP attending the University of California Santa Cruz. Mar is interested in marine carbonate chemistry and uses a combination of observational and model data to study coastal carbon cycling and ocean acidification. He also enjoys biking, listening to music, and trying new breakfast cereals.
Graduate Student, UW
Nina Buzby is a chemical oceanography Graduate Student in GOBOP and the Gray Lab in the School of Oceanography at the University of Washington. She is interested in the impacts of climate change on biogeochemical cycling and carbon chemistry, and is studying the influence of detection platforms in quantifying primary productivity. Outside of research, Nina enjoys adventuring with her dog, trying out breweries, or cooking and eating spicy foods.
Alexandra Brewer, former JIMAR Float Research Associate at PMEL, now a Forests COI Manager at the Puyallup Watershed Initiative
Chanelle Cadot, former JIMAR Float Research Associate at PMEL, now a Field Engineer at the University of Washington, Applied Physics Laboratory
Dr. Donata Giglio, former JISAO Postdoctoral Scholar at PMEL, now an Assistant Professor at the University of Colorado Boulder
Dr. Marion Meinvielle, former NRC Postdoctoral Scholar at PMEL, present position unknown
Dr. Sunke Schmidtko, former NRC Postdoctoral Scholar at PMEL, now at GEOMAR
Dr. Bernadette Sloyan, former NRC Postdoctoral Scholar at PMEL, now a Chief Research Scientist at CSIRO's Oceans and Atmosphere GEOMAR
Dr. Annie Wong, former NRC postdoctoral researcher and JIMAR assistant researcher at PMEL, now a Senior Research Scientist at the University of Washington
Dr. Hannah Zanowski, former JISAO Postdoctoral Scholar at PMEL, now an Assistant Professor at University of Wisconsin-Madison
Dr. Paige Lavin, former University of Washington School of Oceanography Graduate Student at PMEL, presently a Postdoctoral Research Associate at University of Maryland-College Park
Dr. Sarah Purkey, former University of Washington School of Oceanography Graduate Student at PMEL, now an Assistant Professor of Oceanography at the Scripps Institution of Oceanography
CDR Amy Wirts, former University of Washington School of Oceanography Graduate Student at PMEL, now at the US Coast Guard
Abigail Birnbaum, former Hollings Scholarship summer intern at PMEL, now a Graduate Student at Tufts University
Tina Chen, former Hollings Scholarship summer intern at PMEL, present position unknown
Dr. Madeleine Youngs, former Hollings Scholarship Summer Intern at PMEL, now a NOAA Climate and Global Change Postdoctoral Fellow at NYU