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Roberta in Thailand Roberta C. Hamme

Associate Professor
School of Earth and Ocean Sciences
University of Victoria

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Understanding what drives the cycles of gases like carbon dioxide and oxygen is essential to understanding our changing planet. I measure a suite of inert and bioactive gases, like argon and oxygen, to investigate oceanic processes. Dissolved inert gases can tell us about how gases move between the atmosphere and the ocean and what processes drive those fluxes, such as rapid cooling and bubbles created by breaking waves. Dissolved oxygen measurements indicate the productivity of ocean waters. Atmospheric measurements can give us a globally integrated picture of the ocean uptake or release of gases. These different approaches allow my group to investigate a large variety of processes across many spatial and temporal scales.

Prospective students - I am looking for new graduate students to work with me on a variety of projects. I have funding under two NSERC Climate Change and Atmospheric Research grants to make new measurements in Canadian waters. With the VITALS project, I am investigating oxygen and carbon cycling in the Labrador Sea using autonomous sensors and ship-based measurements. This is one of the few places in the world where deep water forms and acts as a kind of lung for the deep ocean. With Arctic GEOTRACES, I am investigating ocean productivity using dissolved oxygen and the loss of bioavailable nutrients from the ocean using dissolved N2/Ar. I also have funding for these types of measurements in the NE Pacific. Prospective students will need strong analytical chemistry and quantitative skills. International students should take the GRE exam. For more information, see my Research page. Contact me if you might be interested in pursuing one of these projects.

The Download page contains both dissolved gas databases from my published papers and MatLab scripts for gas solubility and other useful seawater related quantities. I invite collaboration with people interested in using these gases as tracers, particularly modelers.


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School of Earth and Ocean Sciences
University of Victoria
P.O. Box 1700 STN CSC
Victoria, BC V8W 2Y2
CANADA
Courier address


(250) 472-4014
FAX: (250) 721-6200
Office: A417 Bob Wright Centre
Lab: B417 Bob Wright Centre
Lab phone: (250) 472-4813