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JETZON jobs and PhDs

(1/2) Lecturer in Physical Oceanography, University of Liverpool

Deadline 21 June

The Department of Earth, Ocean and Ecological Sciences with in the School of Environmental Sciences is looking to appoint a Lecturer in Physical Oceanography.

We are looking for an outstanding researcher with the potential to develop an independent, internationally visible research profile that complements existing departmental strengths.

We are particularly interested in candidates working on ocean circulation and mixing, sea‑level science, or the role of the ocean in the climate system, using approaches such as field observations, data synthesis, remote sensing and/or ocean modelling.

Applications are welcome from researchers at different career stages and with diverse research trajectories.

(2/2) Post-doc position: Southern Ocean carbon export fluxes estimated from space, Caltech, USA

The position will remain open until filled, although a start in summer or early fall 2026 is preferred.

The transfer of carbon from the surface to the deep ocean largely occurs through the sinking of particulate matter. However, in certain locations, strong vertical ocean currents also carry organic carbon away from the surface, a process known as the ocean’s mixing pump. Estimates suggest that the mixing pump accounts for up to 50% of the total carbon export from the surface in energetic 
regions, like the Southern Ocean.

This project will leverage data collected from NASA’s SWOT and PACE satellite missions to study the Southern Ocean mixing pump. The SWOT mission provides sea surface height measurements at kilometer-scale resolution with opportunities to estimate vertical ocean velocities. The PACE mission measures the intensity of light at fine resolution (5 nm), which permits an assessment of community composition and its evolution over a seasonal cycle.

This project aims to produce a quantitative, large-scale assessment of the mixing component of the ocean’s biological pump in the Southern Ocean. The study will evaluate the ocean features and physical processes that shape the mixing pump to understand future changes to this component of total carbon export. This is a collaborative project between Caltech and the Scripps Institution of Oceanography, with opportunities to work with Andy Thompson, Christen Frankenburg, Lia Siegelman, and other faculty at 
both institutions.

Minimum qualifications:

• PhD in the earth sciences, data science, applied mathematics, or other related field;
• Excellent written and oral communication skills as demonstrated through a track record of publications 
  and presentations;
• Ability to pursue research independently and as part of a collaborative team.

Preferred qualifications:

• Experience analyzing large data sets or using machine learning techniques;
• Prior research experience in submesoscale dynamics and/or biogeochemical cycling

This is a 2-year postdoctoral position (with initial appointment for 1 year with a second year pending good progress). 

To apply please submit a cover letter (explaining interest and relevant qualifications), CV (including list of publications), and contact information for up to three references by email to Andy Thompson (andrewt@caltech.edu). References will only be contacted for shortlisted candidates. A Group Resources and Expectations Guide is provided at (https://web.gps.caltech.edu/~andrewt/). Questions about the project may be directed to Andy Thompson (andrew@caltech.edu) or Lia Siegelman (lsiegelman@ucsd.edu)