Elyn Humphreys, Carleton University

Research

Arctic eddy covariance biogeochemistry boreal forest carbon cycle fire land surface modeling northern terrestrial ecosystems

Latest papers

Assessing modelled methane emissions over northern wetlands by the JULES-HIMMELI model.
The Science of the total environment · 2025
Statistical upscaling of ecosystem CO2 fluxes across the terrestrial tundra and boreal domain: Regional patterns and uncertainties.
Global change biology · 2021
Long-term nutrient addition increased CH4 emission from a bog through direct and indirect effects.
Scientific reports · 2018

All 3 publications

Latest funding

MONITORING WINTER GREENHOUSE GAS IN CANADIAN ARCTIC ENVIRONMENTS
NSERC · 2023 · Co-investigator
$89,014
The Canadian Optimized High-Resolution Representation of the National Terrestrial Carbon Cycle (COHERENT-C)
NSERC · 2020 · Principal investigator
$190,930
Changing land-atmosphere interactions in Arctic tundra
NSERC · 2018 · Principal investigator
$90,000

All 13 grants and awards

3 publications.

01

Assessing modelled methane emissions over northern wetlands by the JULES-HIMMELI model.

Gao Y, Burke EJ, Chadburn SE, Raivonen M, Markkanen T, Aurela M, Flanagan LB, Fortuniak K, Humphreys E, Lohila A, Li T, Mammarella I, Nevalainen O, Nilsson MB, Pawlak W, Tsuruta A, Yang H, Aalto T

The Science of the total environment2025

DOI: 10.1016/j.scitotenv.2025.179526 PMID: 40318373

02

Statistical upscaling of ecosystem CO2 fluxes across the terrestrial tundra and boreal domain: Regional patterns and uncertainties.

Virkkala AM, Aalto J, Rogers BM, Tagesson T, Treat CC, Natali SM, Watts JD, Potter S, Lehtonen A, Mauritz M, Schuur EAG, Kochendorfer J, Zona D, Oechel W, Kobayashi H, Humphreys E, Goeckede M, Iwata H, Lafleur PM, Euskirchen ES, Bokhorst S, Marushchak M, Martikainen PJ, Elberling B, Voigt C, Biasi C, Sonnentag O, Parmentier FW, Ueyama M, Celis G, St Louis VL, Emmerton CA, Peichl M, Chi J, Järveoja J, Nilsson MB, Oberbauer SF, Torn MS, Park SJ, Dolman H, Mammarella I, Chae N, Poyatos R, López-Blanco E, Christensen TR, Kwon MJ, Sachs T, Holl D, Luoto M

Global change biology2021

DOI: 10.1111/gcb.15659 PMID: 33913236

03

Long-term nutrient addition increased CH4 emission from a bog through direct and indirect effects.

Juutinen S, Moore TR, Bubier JL, Arnkil S, Humphreys E, Marincak B, Roy C, Larmola T

Scientific reports2018

DOI: 10.1038/s41598-018-22210-2 PMID: 29497129

MONITORING WINTER GREENHOUSE GAS IN CANADIAN ARCTIC ENVIRONMENTS

Co-investigatorNSERC2023Alliance Grants

Principal investigators: Roy, Alexandre A

Keywords: canadian arctic; classic; climate change; ecosystem model; greenhouse gas; snow; soil; thermal conductivity; winter; zero curtain

$89,014

The Canadian Optimized High-Resolution Representation of the National Terrestrial Carbon Cycle (COHERENT-C)

Principal investigatorNSERC2020Alliance Grants

Principal investigators: Humphreys, Elyn ER

Keywords: arctic; biogeochemistry; boreal forest; carbon cycle; eddy covariance; fire; land surface modeling; northern terrestrial ecosystems; peatlands

$190,930

Changing land-atmosphere interactions in Arctic tundra

Principal investigatorNSERC2018Discovery Grants Program - Northern Research Supplement

Principal investigators: Humphreys, Elyn ER

Keywords: arctic; carbon dioxide; ecosystem change; eddy covariance; evaporation; methane; shrub; surface-atmosphere interactions; tundra; winter

$90,000

Changing land-atmosphere interactions in Arctic tundra

Principal investigatorNSERC2018Discovery Grants Program - Individual

Principal investigators: Humphreys, Elyn

$258,000

Arctic carbon in flux - greenhouse gas budgets in a permafrost watershed

Principal investigatorNSERC2013Discovery Grants Program - Individual

Principal investigators: Humphreys, Elyn

$165,000

Arctic carbon in flux - greenhouse gas budgets in a permafrost watershed

Principal investigatorNSERC2013Discovery Grants Program - Northern Research Supplement

Principal investigators: Humphreys, Elyn

$75,000

Understanding the impact of coal spoils on the hydrology of alpine watersheds, Elk Valley, British Columbia

Co-investigatorNSERC2012Collaborative Research and Development Grants

Principal investigators: Carey, Sean

$393,500

Assessing the structure and function of peatland ecosystems in a changing environment

Co-investigatorNSERC2010Strategic Projects - Group

Principal investigators: Roulet, Nigel

$553,394

Carbon exchange processes in arctic and subarctic ecosystems

Principal investigatorNSERC2008Discovery Grants Program - Individual

Principal investigators: Humphreys, Elyn

$90,000

Climate change impacts on Canadian Arctic tundra ecosystems: interdisciplinary and multi-scale assessments

Co-investigatorNSERC2007Government of Canada's Program for International Polar Year

Principal investigators: Henry, Gregory

$5,060,899

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

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 2020

Subject: Prospective PhD student: Arctic Dear Professor Humphreys, 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 "Assessing modelled methane emissions over northern wetlands by the JULES-HIMMELI model." (2025), 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 "The Canadian Optimized High-Resolution Representation of the National Terrestrial Carbon Cycle (COHERENT-C)" (2020), 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]