Matthew R Johnson
Biographic Data
| ID | 9037269 |
|---|---|
| NAME | Matthew R Johnson |
| GIVEN NAMES | Matthew R |
| FAMILY NAME | Johnson |
| SIGNATURE | JOHNSON M R |
| AFFILIATIONS | Carleton College |
| ORCID | 0000-0002-3637-9919 |
| VERIFIED | Yes |
| TOTAL WORKS | 6 |
| TOTAL CITATIONS | 0 |
| WORKS AS AUTHOR | 6 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2018 |
| LATEST PUBLICATION YEAR | 2023 |
| H-INDEX | 0 |
Methane venting from uncontrolled production storage tanks at conventional oil wells—Temporal variability, root causes, and implications for measurement
Uncontrolled oil production storage tanks are important but poorly understood sources of methane (CH4) emissions in the upstream oil and gas sector. This study reports and analyzes directly measured, temporally varying CH4 emission rates, total gas vent rates, and vent gas CH4 fractions from storage tanks at eight active upstream oil production sites in Alberta, Canada. Using a built-for-purpose optical mass flux meter (VentX) supplemented by an …
Refreshing and removing items in working memory
Researchers have investigated "refreshing" of items in working memory (WM) as a means of preserving them, while concurrently, other studies have examined "removal" of items from WM that are irrelevant. However, it is unclear whether refreshing and removal in WM truly represent different processes, or if participants, in an effort to avoid the to-be-removed items, simply refresh alternative items. We conducted two experiments to test whether these…
Practical Active Learning Stations to Transform Existing Learning Environments Into Flexible, Active Learning Classrooms
Contribution: Practical active learning stations (PALSs)-equipped classrooms function similar to prototypical active learning classrooms (ALCs). They support student collaboration and active learning pedagogies but at a fraction of the cost. Background: Active learning pedagogies and active learning technology are revitalizing STEM education and their use has led to an increase in student performance and satisfaction with the learning environment…
A case study in competing methane regulations
The Canadian federal government and the Province of Alberta (the dominant oil and gas producing province) have released competing methane regulations for the oil and gas sector intended to take effect between January 2020–2023. Provisions in Canadian law could allow the provincial regulations to take precedent, but only if they are deemed to be equivalent in effect. This paper presents a comprehensive technical comparison of these upcoming regula…
A methane emissions reduction equivalence framework for alternative leak detection and repair programs
Fugitive methane emissions from the oil and gas sector are typically addressed through periodic leak detection and repair surveys. These surveys, conducted manually using handheld leak detection technologies, are time-consuming. To improve the speed and cost-effectiveness of leak detection, technology developers are introducing innovative solutions using mobile platforms, close-range portable systems, and permanent installations. Many of these ne…
Methane emissions from oil and gas production sites in Alberta, Canada
We performed ground-based measurements (downwind, site-wide characterization) of methane emissions from older light oil and natural gas production sites in Alberta, Canada (Red Deer region, 60 measured sites). We developed a distribution of site-based methane emissions and as previously found in production regions in the United States, a small fraction of the sites account for the majority of methane emissions: 20% of the sites emit three quarter…
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Methane emissions from oil and gas production sites in Alberta, Canada
We performed ground-based measurements (downwind, site-wide characterization) of methane emissions from older light oil and natural gas production sites in Alberta, Canada (Red Deer region, 60 measured sites). We developed a distribution of site-based methane emissions and as previously found in production regions in the United States, a small fraction of the sites account for the majority of methane emissions: 20% of the sites emit three quarter…
A methane emissions reduction equivalence framework for alternative leak detection and repair programs
Fugitive methane emissions from the oil and gas sector are typically addressed through periodic leak detection and repair surveys. These surveys, conducted manually using handheld leak detection technologies, are time-consuming. To improve the speed and cost-effectiveness of leak detection, technology developers are introducing innovative solutions using mobile platforms, close-range portable systems, and permanent installations. Many of these ne…
A case study in competing methane regulations
The Canadian federal government and the Province of Alberta (the dominant oil and gas producing province) have released competing methane regulations for the oil and gas sector intended to take effect between January 2020–2023. Provisions in Canadian law could allow the provincial regulations to take precedent, but only if they are deemed to be equivalent in effect. This paper presents a comprehensive technical comparison of these upcoming regula…
Refreshing and removing items in working memory
Researchers have investigated "refreshing" of items in working memory (WM) as a means of preserving them, while concurrently, other studies have examined "removal" of items from WM that are irrelevant. However, it is unclear whether refreshing and removal in WM truly represent different processes, or if participants, in an effort to avoid the to-be-removed items, simply refresh alternative items. We conducted two experiments to test whether these…
Practical Active Learning Stations to Transform Existing Learning Environments Into Flexible, Active Learning Classrooms
Contribution: Practical active learning stations (PALSs)-equipped classrooms function similar to prototypical active learning classrooms (ALCs). They support student collaboration and active learning pedagogies but at a fraction of the cost. Background: Active learning pedagogies and active learning technology are revitalizing STEM education and their use has led to an increase in student performance and satisfaction with the learning environment…
Methane venting from uncontrolled production storage tanks at conventional oil wells—Temporal variability, root causes, and implications for measurement
Uncontrolled oil production storage tanks are important but poorly understood sources of methane (CH4) emissions in the upstream oil and gas sector. This study reports and analyzes directly measured, temporally varying CH4 emission rates, total gas vent rates, and vent gas CH4 fractions from storage tanks at eight active upstream oil production sites in Alberta, Canada. Using a built-for-purpose optical mass flux meter (VentX) supplemented by an …
Atmospheric and Environmental Gas Dynamics (4 works) · Engineering (4 works) · Computer Science (3 works) · Environmental Engineering (3 works) · Environmental Science (3 works) · Fossil fuel (3 works) · Greenhouse gas (3 works) · Methane (3 works) · Waste management (3 works) · Artificial Intelligence (2 works)