Douglas Wallace, Dalhousie University

Research

oceans marine observation prediction climate change resilience hazard risk

Latest papers

High frequency in situ total alkalinity measurement for monitoring ocean alkalinity enhancement field trials.
Communications engineering · 2026
To kill or to piggyback: Switching of viral lysis-lysogeny strategies depending on host dynamics.
The Science of the total environment · 2025
The global energy transition offers new options for mitigation of coastal hypoxia: Do we know enough?
Global change biology · 2024 · senior author

All 7 publications

Latest funding

BELAS: Biological Carbon Export in the Labrador Sea
NSERC · 2023 · Co-investigator
$340,313
Quantifying sediment carbon dynamics in situ and the implication for the ocean alkalinity enhancement approach to marine carbon dioxide removal.
NSERC · 2023 · Co-investigator
$163,800
Dissolved Organic Carbon and Nitrogen Analysis for Coastal and Aquatic Studies.
NSERC · 2023 · Principal investigator
$90,863

All 21 grants and awards

7 publications.

01

High frequency in situ total alkalinity measurement for monitoring ocean alkalinity enhancement field trials.

Zabihihesari A, Burt W, Sonnichsen C, Motahari S, Whitworth A, Izett R, Fradette C, Wallace D, Sieben V

Communications engineering2026

DOI: 10.1038/s44172-026-00665-w PMID: 42020707

02

To kill or to piggyback: Switching of viral lysis-lysogeny strategies depending on host dynamics.

Hu C, Chen X, Wei W, Wallace D, Liu J, Zhang Y, Zhang L, Xu D, Batt J, Xiao X, Shi Q, Zheng Q, Ma R, Luo T, Jiao N, Zhang R

The Science of the total environment2025

DOI: 10.1016/j.scitotenv.2024.178233 PMID: 39721538

03

The global energy transition offers new options for mitigation of coastal hypoxia: Do we know enough?

Handmann P, Wallace D

Global change biology2024Senior author

DOI: 10.1111/gcb.17228 PMID: 38483025

04

Ocean negative carbon emissions: A new UN Decade program.

Liu J, Robinson C, Wallace D, Legendre L, Jiao N

Innovation (Cambridge (Mass.))2022

DOI: 10.1016/j.xinn.2022.100302 PMID: 36105651

05

Heterogeneous viral contribution to dissolved organic matter processing in a long-term macrocosm experiment.

Chen X, Wei W, Xiao X, Wallace D, Hu C, Zhang L, Batt J, Liu J, Gonsior M, Zhang Y, LaRoche J, Hill P, Xu D, Wang J, Jiao N, Zhang R

Environment international2022

DOI: 10.1016/j.envint.2021.106950 PMID: 34715430

06

Correcting a major error in assessing organic carbon pollution in natural waters.

Jiao N, Liu J, Edwards B, Lv Z, Cai R, Liu Y, Xiao X, Wang J, Jiao F, Wang R, Huang X, Guo B, Sun J, Zhang R, Zhang Y, Tang K, Zheng Q, Azam F, Batt J, Cai WJ, He C, Herndl GJ, Hill P, Hutchins D, LaRoche J, Lewis M, MacIntyre H, Polimene L, Robinson C, Shi Q, Suttle CA, Thomas H, Wallace D, Legendre L

Science advances2021

DOI: 10.1126/sciadv.abc7318 PMID: 33853769

07

Lab-on-chip analyser for the in situ determination of dissolved manganese in seawater.

Geißler F, Achterberg EP, Beaton AD, Hopwood MJ, Esposito M, Mowlem MC, Connelly DP, Wallace D

Scientific reports2021Senior author

DOI: 10.1038/s41598-021-81779-3 PMID: 33504867

BELAS: Biological Carbon Export in the Labrador Sea

Co-investigatorNSERC2023Discovery Grants Program - Ship Time

Principal investigators: Bertrand, Erin E

Keywords: BGC Argo; biological carbon pump; carbon export; climate change; international collaboration; Labrador Sea; molecular indicies; phytoplankton bloom

$340,313

Quantifying sediment carbon dynamics in situ and the implication for the ocean alkalinity enhancement approach to marine carbon dioxide removal.

Co-investigatorNSERC2023Discovery Grants Program - Ship Time

Principal investigators: Musgrave, Ruth RC

Keywords: allkalinity; biogeochemistry; carbonate chemistry; carbon change; carbon dioxide; fluxes; geoengineering; microbial diversity; sediments

$163,800

Dissolved Organic Carbon and Nitrogen Analysis for Coastal and Aquatic Studies.

Principal investigatorNSERC2023Research Tools and Instruments

Principal investigators: Wallace, Douglas

$90,863

Integrated measurements of GHG emissions at an intermediate port

Co-investigatorNSERC2022Alliance Grants

Principal investigators: Wiacek, Aldona A

Keywords: air-sea ghg flux measurements; anthropogenic marine ghg emissions; ghg flux sensors; greenhouse gas measurements; marine edna sampling; marine microbial ghg production; open-path ftir spectroscopy; port and harbour ghg instrumentation; ports and harbours ghg emissions

$983,068

Assessment and Verification Tools for Ocean-based Carbon Dioxide Removal (CDR)

Co-investigatorNSERC2021Alliance Grants

Principal investigators: Fennel, Katja K

$585,300

Insights into biogeochemical transformations and fluxes from high-frequency ocean time-series data.

Principal investigatorNSERC2021Discovery Grants Program - Individual

Principal investigators: Wallace, Douglas

Keywords: chemical oceanography; carbon cycle; nitrogen cycle; ocean biogeochemical processes; air-sea exchange; iodine cycling; labrador sea; hypoxia

$204,000

Alkalinity addition to coastal seawater in conjunction with green hydrogen generation: chemical and biological impacts and verification of CO2 uptake.

Principal investigatorNSERC2021Alliance Grants

Principal investigators: Wallace, Douglas DWR

Keywords: alkalinity; carbon dioxide; hydrogen generation; marine chemistry; marine robotics; negative emission technology; numerical modelling; physical oceanography; phytoplankton physiology; shellfish aquaculture

$397,000

Ocean Science and Technology

Principal investigatorNSERC2018Canada Research Chairs

Principal investigators: Wallace, Douglas

$200,000

Ocean Science and Technology

Principal investigatorNSERC2018Canada Research Chairs

Principal investigators: Wallace, Douglas

$300,000

Ocean Science and Technology

Principal investigatorNSERC2018Canada Research Chairs

Principal investigators: Wallace, Douglas

Keywords: Marine biogeochemistry; Air-sea gas exchange; CO2 uptake; Nitrogen cycle; Ocean time-series; Volunteer Observing Ship; Labrador Sea; Natural halocarbons; Ocean observatory

$800,000

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

Oceanography
Oceanography Dept
biology
Electrical and Computer Engineering

Co-authors at Dalhousie University, colored by department. Thicker lines mean more shared papers; select anyone to open their profile and their own map.

Paul Hill

Oceanography

2 shared papers, latest 2022

Julie LaRoche

biology

2 shared papers, latest 2022

Marlon Lewis

Oceanography

1 shared papers, latest 2021

Vincent Sieben

Electrical and Computer Engineering

1 shared papers, latest 2026

Hugh MacIntyre

Oceanography

1 shared papers, latest 2021

Helmuth Thomas

Oceanography

1 shared papers, latest 2021

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: oceans Dear Professor Wallace, 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 "High frequency in situ total alkalinity measurement for monitoring ocean alkalinity enhancement field trials." (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 "Dissolved Organic Carbon and Nitrogen Analysis for Coastal and Aquatic Studies." (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]