SUper eMitters of Methane Detection Using Aircraft, Towers, and Intensive Observational Network (SUMMATION)
Conducting a comprehensive field study to identify and mitigate methane emissions in the southern San Joaquin Valley
The team completed constructing and testing four methane-monitoring systems as part of the Tiered-observing system. CSU-Bakersfield methane monitoring system has been running since June 1, 2019. Based on the methane emissions map from the Oil and Gas and Dairy sector in California and SUMMATION domain, 4 sites (Buttonwillow, Taft, Shafter, and SouthWest) were selected as promising candidates for the Tier-1 observing system. The team has completed their second week-long campaign in Bakersfield to measure methane emissions from residential buildings and measured emissions from gas stovetops, gas ovens, storage water heaters, and tankless water heater from 9 different homes. The team also completed their first field campaign in the SUMMATION domain conducting on-road mobile survey in Bakersfield metropolitan area and around the elk-hills oil&gas field. This led the identification, and mitigation of an significant leak in a residential neighbourhood and led the a strengthening of the partnership with PG&E. A fourth Community Advisory Board Meeting organized by the Central California Asthma Collaborative was held in March 2022.
The project SUMMATION establishes persistent regional-scale methane (CH4) emissions monitoring, conducts high spatial resolution remote sensing of point source detection and quantification, organizes intensive field campaigns including low-cost sensors assessment, and brings together and analyzes a large data set for the southern San Joaquin Valley.
Early detection of methane fugitive emissions will shorten time needed to fix the largest leaks and, hence, reduce the total amount of greenhouse gas emissions.
Identifying methane super-emitters will shorten the time needed to mitigate and fix the leaks and result in the improved resilience of California's natural gas system.
Early detection and mitigation of methane emissions could reduce risk of catastrophic events such as pipeline explosions.
Early detection of gas leakage could prevent potential disruptions to California's natural gas system caused by pipeline shutdowns, and hence interruptions of natural gas fired electricity plants.
Key Project Members
Leland Stanford Junior University
University of California, Riverside
Central California Asthma Collaborative