Guillaume St-Onge, Université du Québec à Rimouski

Research

Arctic Cosmogenic isotopes Eastern Canada Paleoclimatology and paleoceanography Paleointensity Paleomagnetic secular variations Paleomagnetism Quaternary

Latest papers

Wind-dependent and traffic-generated noise in marine mammal habitat: Assessment across three frequency bands in the St. Lawrence estuary.
The Journal of the Acoustical Society of America · 2026
Multi-phase retreat of the Laurentide Ice Sheet and associated freshwater release from Hudson Bay during the last deglaciation.
Scientific reports · 2026
Annually resolved Atlantic sea surface temperature variability over the past 2,900 y.
Proceedings of the National Academy of Sciences of the United States of America · 2020

All 5 publications

Latest funding

Critical instrumentation for the study of geological, chemical and biological processes in marine sediments in Eastern Canada
NSERC · 2023 · Co-investigator
$150,000
Abrupt changes and dynamics of the geomagnetic field during the Holocene
NSERC · 2023 · Principal investigator
$118,000
Abrupt changes and dynamics of the geomagnetic field during the Holocene
NSERC · 2023 · Principal investigator
$22,000

All 50 grants and awards

5 publications.

01

Wind-dependent and traffic-generated noise in marine mammal habitat: Assessment across three frequency bands in the St. Lawrence estuary.

Mérindol J, Gervaise C, Mercure-Boissonnault P, St-Onge G, Cauchy P

The Journal of the Acoustical Society of America2026

DOI: 10.1121/10.0043175 PMID: 42133802

02

Multi-phase retreat of the Laurentide Ice Sheet and associated freshwater release from Hudson Bay during the last deglaciation.

Duboc Q, Brouard E, St-Onge G, Lajeunesse P, Moros M, Perner K, Roy M

Scientific reports2026

DOI: 10.1038/s41598-026-39365-y PMID: 41882030

03

Annually resolved Atlantic sea surface temperature variability over the past 2,900 y.

Lapointe F, Bradley RS, Francus P, Balascio NL, Abbott MB, Stoner JS, St-Onge G, De Coninck A, Labarre T

Proceedings of the National Academy of Sciences of the United States of America2020

DOI: 10.1073/pnas.2014166117 PMID: 33046633

04

Are Paleomagnetic Records From U-Channels Appropriate for Studies of Reversals and Excursions?

Philippe ÉGH, Valet JP, St-Onge G, Thevarasan A

Geochemistry, geophysics, geosystems : G(3)2018

DOI: 10.1029/2018gc007803 PMID: 30774561

05

Mid-Pleistocene climate transition drives net mass loss from rapidly uplifting St. Elias Mountains, Alaska.

Gulick SP, Jaeger JM, Mix AC, Asahi H, Bahlburg H, Belanger CL, Berbel GB, Childress L, Cowan E, Drab L, Forwick M, Fukumura A, Ge S, Gupta S, Kioka A, Konno S, LeVay LJ, März C, Matsuzaki KM, McClymont EL, Moy C, Müller J, Nakamura A, Ojima T, Ribeiro FR, Ridgway KD, Romero OE, Slagle AL, Stoner JS, St-Onge G, Suto I, Walczak MD, Worthington LL, Bailey I, Enkelmann E, Reece R, Swartz JM

Proceedings of the National Academy of Sciences of the United States of America2015

DOI: 10.1073/pnas.1512549112 PMID: 26598689

Critical instrumentation for the study of geological, chemical and biological processes in marine sediments in Eastern Canada

Co-investigatorNSERC2023Research Tools and Instruments

Principal investigators: Pellerin, Andre

$150,000

Abrupt changes and dynamics of the geomagnetic field during the Holocene

Principal investigatorNSERC2023Discovery Grants Program - Individual

Principal investigators: St-Onge, Guillaume

Keywords: paleomagnetism; paleointensity; paleomagnetic secular variations; stratigraphy; sedimentology; cosmogenic isotopes; paleoclimatology and paleoceanography; quaternary; arctic; eastern canada

$118,000

Abrupt changes and dynamics of the geomagnetic field during the Holocene

Principal investigatorNSERC2023Discovery Grants Program - Northern Research Supplement

Principal investigators: St-Onge, Guillaume

Keywords: paleomagnetism; paleointensity; paleomagnetic secular variations; stratigraphy; sedimentology; cosmogenic isotopes; paleoclimatology and paleoceanography; quaternary; arctic; eastern canada

$22,000

géologie marine

Principal investigatorNSERC2021Canada Research Chairs

Principal investigators: St-Onge, Guillaume

Keywords: Géologie marine; Risques naturels; Stratigraphie; Changements climatiques; Lacs profonds; Quaternaire; Est du Canada; Arctique; Hémisphère Sud; Sédimentologie

$500,000

Replacement of an obsolete laser particle size analyzer for multidisciplinary geoscience research

Co-investigatorNSERC2020Research Tools and Instruments

Principal investigators: MonteroSerrano, JeanCarlos

$133,064

High-frequency geomagnetic field dynamics in the Arctic

Principal investigatorNSERC2017Discovery Grants Program - Northern Research Supplement

Principal investigators: St-Onge, Guillaume GFH

$90,000

Interhemispheric high-frequency geomagnetic field dynamics

Principal investigatorNSERC2017Discovery Grants Program - Individual

Principal investigators: St-Onge, Guillaume

$282,000

Canadian participation in the North East Greenland Expedition 2017 (NorthGreen2017)

Co-investigatorNSERC2017Discovery Grants Program - Ship Time

Principal investigators: DEVERNAL, Anne

$186,000

Appui au fonctionnement et à l'entretien des instruments scientifiques du navire de recherche Coriolis II

Principal investigatorNSERC2017Research Tools and Instruments

Principal investigators: StOnge, Guillaume

$150,000

Temps-navire, archives sedimentaires des grands lacs de l'est du Quebec/Labrador

Co-investigatorNSERC2016Discovery Grants Program - Ship Time

Principal investigators: Lajeunesse, Patrick

$50,283

From CIHR, NSERC and SSHRC funding decisions: CIHR since 2008, NSERC since 1991 and SSHRC since 1998, including their latest published competition results.

Frequent collaborators

ISMER
Études nordiques, centre d'
Sciences de la mer de Rimouski, Institut des
Eau Terre et Environnement, Centre

Co-authors at Université du Québec à Rimouski, colored by department. Thicker lines mean more shared papers; select anyone to open their profile and their own map.

Pierre Francus

Eau Terre et Environnement, Centre

1 shared papers, latest 2020

Pierre Cauchy

Sciences de la mer de Rimouski, Institut des

1 shared papers, latest 2026

Patrick Lajeunesse

Études nordiques, centre d'

1 shared papers, latest 2026

Write to this professor

A short, specific email works best. This draft uses one of their recent papers; replace the parts in brackets with your own details before sending.

Applying for

Paper to mentionMention their NSERC grant from 2023

Subject: Prospective PhD student: Arctic Dear Professor St-Onge, My name is [your name], and I am a [your current degree or role] at [your institution]. I am applying for a PhD position starting in [term and year]. I read your paper "Wind-dependent and traffic-generated noise in marine mammal habitat: Assessment across three frequency bands in the St. Lawrence estuary." (2026), and it connects closely to my own work on [your research topic]. [One or two sentences on what you did and what you learned.] I also saw your NSERC-funded project "Abrupt changes and dynamics of the geomagnetic field during the Holocene" (2023), and I would be glad to contribute to work in that direction. Are you accepting new PhD students for [term and year]? I have attached my CV and transcripts, and I would be glad to talk at a time that suits you. Thank you for your time. Kind regards, [your name]