Margaret Powell

ORCID: 0009-0008-8826-1948
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About
Contact & Profiles
Research Areas
  • Climate change and permafrost
  • Methane Hydrates and Related Phenomena
  • Atmospheric and Environmental Gas Dynamics
  • Chemical Reactions and Isotopes
  • Indigenous Studies and Ecology
  • Cryospheric studies and observations
  • Advanced Chemical Sensor Technologies
  • Chemical Safety and Risk Management
  • Combustion and Detonation Processes

Planetary Science Institute
2020-2023

Harvard University
2020

John Wiley & Sons (United States)
2020

Moss Landing Marine Laboratories
2020

Hudson Institute
2020

Abstract Climate change is causing an intensification in tundra fires across the Arctic, including unprecedented 2015 Yukon‐Kuskokwim (YK) Delta. The YK Delta contains extensive surface waters (∼33% cover) and significant quantities of organic carbon, much which stored vulnerable permafrost. Inland aquatic ecosystems act as hot‐spots for landscape CO 2 CH 4 emissions likely represent a component Arctic carbon balance, yet fluxes are also some most uncertain. We measured dissolved...

10.1029/2021gb007146 article EN Global Biogeochemical Cycles 2022-03-26

Abstract In the Arctic waterbodies are abundant and rapid thaw of permafrost is destabilizing carbon cycle changing hydrology. It particularly important to quantify accurately scale aquatic emissions in arctic ecosystems. Recently available high-resolution remote sensing datasets capture physical characteristics landscapes at unprecedented spatial resolution. We demonstrate how machine learning models can capitalize on these greatly improve accuracy when scaling waterbody CO 2 CH 4 fluxes...

10.1088/1748-9326/acd467 article EN cc-by Environmental Research Letters 2023-05-11

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Peak Flammability Limits of Hydrogen Sulfide, Carbon Dioxide, and Air for Upward PropagationEdward J. Anthony Margaret F. PowellCite this: Ind. Eng. Chem. Fundamen. 1979, 18, 3, 238–240Publication Date (Print):August 1, 1979Publication History Published online1 May 2002Published inissue 1 August 1979https://pubs.acs.org/doi/10.1021/i160071a007https://doi.org/10.1021/i160071a007research-articleACS PublicationsRequest reuse permissionsArticle...

10.1021/i160071a007 article EN Industrial & Engineering Chemistry Fundamentals 1979-08-01
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