Genevieve Plant
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View article: Scaling Urban Methane Emissions: Utility of Single-Site Measurements in Five Urban Domains
Scaling Urban Methane Emissions: Utility of Single-Site Measurements in Five Urban Domains Open
Urban methane (CH4) missions remain poorly understood due to limited observational constraints. Most estimates rely on bottom-up inventories based on assumed emission factors and activity data or downscaling methods, which often underestim…
View article: Airborne Measurements Reveal High Spatiotemporal Variation and the Heavy‐Tail Characteristic of Nitrous Oxide Emissions in Iowa
Airborne Measurements Reveal High Spatiotemporal Variation and the Heavy‐Tail Characteristic of Nitrous Oxide Emissions in Iowa Open
Nitrous oxide (N 2 O) emissions from croplands contribute substantially to the climate impact of agriculture. Emissions of N 2 O are controlled by both anthropogenic and environmental factors and can vary by orders of magnitude over short …
View article: Measurement-based carbon intensity of US offshore oil and gas production
Measurement-based carbon intensity of US offshore oil and gas production Open
The United States (US) produces oil and gas from six offshore regions: the North Slope of Alaska, Cook Inlet in Alaska, offshore California, and three Gulf of Mexico (GOM) sub-regions: state shallow, federal shallow, and deep waters. Measu…
View article: Underestimated Dry Season Methane Emissions from Wetlands in the Pantanal
Underestimated Dry Season Methane Emissions from Wetlands in the Pantanal Open
Tropical wetlands contribute ∼30% of the global methane (CH4) budget. Limited observational constraints on tropical wetland CH4 emissions lead to large uncertainties and disparities in representing emissions. In this work, we combine remot…
View article: In Situ Sampling of NOx Emissions from United States Natural Gas Flares Reveals Heavy-Tail Emission Characteristic
In Situ Sampling of NOx Emissions from United States Natural Gas Flares Reveals Heavy-Tail Emission Characteristic Open
Natural gas flaring is a common practice employed in many United States (U.S.) oil and gas regions to dispose of gas associated with oil production. Combustion of predominantly hydrocarbon gas results in the production of nitrogen oxides (…
View article: Excess methane emissions from shallow water platforms elevate the carbon intensity of US Gulf of Mexico oil and gas production
Excess methane emissions from shallow water platforms elevate the carbon intensity of US Gulf of Mexico oil and gas production Open
The Gulf of Mexico is the largest offshore fossil fuel production basin in the United States. Decisions on expanding production in the region legally depend on assessments of the climate impact of new growth. Here, we collect airborne obse…
View article: Improving Representation of Tropical Wetland Methane Emissions With CYGNSS Inundation Maps
Improving Representation of Tropical Wetland Methane Emissions With CYGNSS Inundation Maps Open
Wetlands are the single largest source of methane to the atmosphere and their emissions are expected to respond to a changing climate. Inaccuracy and uncertainty in inundation extent drives differences in modeled wetland emissions and impa…
View article: Evaluating urban methane emissions from space using TROPOMI methane and carbon monoxide observations
Evaluating urban methane emissions from space using TROPOMI methane and carbon monoxide observations Open
Anthropogenic methane emissions from urban centers are important and addressable, yet remain poorly characterized, and the representativeness of studies from individual cities is unknown. A satellite-based approach provides a pathway to ta…
View article: Fossil Versus Nonfossil CO Sources in the US: New Airborne Constraints From ACT‐America and GEM
Fossil Versus Nonfossil CO Sources in the US: New Airborne Constraints From ACT‐America and GEM Open
Carbon monoxide (CO) is an ozone precursor, oxidant sink, and widely used pollution tracer. The importance of anthropogenic versus other CO sources in the US is uncertain. Here, we interpret extensive airborne measurements with an atmosphe…
View article: Reduction in GHG emissions in the U.S. North East Corridor due to COVID-19 lockdowns as measured by the East Coast Outflow Experiment
Reduction in GHG emissions in the U.S. North East Corridor due to COVID-19 lockdowns as measured by the East Coast Outflow Experiment Open
<p><span>On March 11<sup>th</sup> , 2020, the World Health Organization (WHO) characterized the COVID-19 respiratory disease caused by the coronavirus (SARS-CoV-2) as a world wide pandemic which led to a massive slo…
View article: Aircraft-based inversions quantify the importance of wetlands and livestock for Upper Midwest methane emissions
Aircraft-based inversions quantify the importance of wetlands and livestock for Upper Midwest methane emissions Open
We apply airborne measurements across three seasons (summer, winter and spring 2017–2018) in a multi-inversion framework to quantify methane emissions from the US Corn Belt and Upper Midwest, a key agricultural and wetland source region. C…
View article: Improving representation of tropical wetland methane emissions with CYGNSS inundation maps
Improving representation of tropical wetland methane emissions with CYGNSS inundation maps Open
Earth and Space Science Open Archive This work has been accepted for publication in Global Biogeochemical Cycles. Version of RecordESSOAr is a venue for early communication or feedback before peer review. Data may be preliminary. Learn mor…
View article: Aircraft-based inversions quantify the importance of wetlands and livestock for Upper Midwest methane emissions
Aircraft-based inversions quantify the importance of wetlands and livestock for Upper Midwest methane emissions Open
We apply airborne measurements across three seasons (summer, winter, spring 2017–2018) in a multi-inversion framework to quantify methane emissions from the US Corn Belt and Upper Midwest, a key agricultural and wetland source region. Comb…
View article: Top‐Down Constraints on Methane Point Source Emissions From Animal Agriculture and Waste Based on New Airborne Measurements in the U.S. Upper Midwest
Top‐Down Constraints on Methane Point Source Emissions From Animal Agriculture and Waste Based on New Airborne Measurements in the U.S. Upper Midwest Open
Agriculture and waste are thought to account for half or more of the U.S. anthropogenic methane source. However, current bottom‐up inventories contain inherent uncertainties from extrapolating limited in situ measurements to larger scales.…
View article: Airborne methane measurements from the GEM study: Facility-level sampling
Airborne methane measurements from the GEM study: Facility-level sampling Open
This archive contains airborne measurements from the GEM campaign. Data are archived in association with the following manuscript: Yu, X., D.B. Millet, K.C. Wells, T.J. Griffis, X. Chen, J.M. Baker, S.A. Conley, M.L. Smith, A. Gvakharia, E…
View article: Large Fugitive Methane Emissions From Urban Centers Along the U.S. East Coast
Large Fugitive Methane Emissions From Urban Centers Along the U.S. East Coast Open
Urban emissions remain an underexamined part of the methane budget. Here we present and interpret aircraft observations of six old and leak‐prone major cities along the East Coast of the United States. We use direct observations of methane…
View article: Optical heterodyne-enhanced chirped laser dispersion spectroscopy
Optical heterodyne-enhanced chirped laser dispersion spectroscopy Open
A proof-of-concept heterodyne-enhanced chirped laser dispersion spectroscopy system is presented. In remote sensing systems where low return powers are expected, the addition of an optical local oscillator and subsequent nonlinear processi…
View article: Remote Sensing of Atmospheric Methane with Simultaneous Ranging Using Chirped Laser Dispersion Spectroscopy
Remote Sensing of Atmospheric Methane with Simultaneous Ranging Using Chirped Laser Dispersion Spectroscopy Open
\nWe present a new sensing technology that allows for simultaneous sensing and ranging using chirped laser dispersion spectroscopy (CLaDS). In conjunction with previous works demonstrating the effectiveness of CLaDS for remote sensing, thi…