气候变化领域集成服务门户(CCPortal): Synthesis of Methane Observations Across Scales: Strategies for Deploying a Multitiered Observing Network

CCPortal

DOI	10.1029/2020GL087869
	Synthesis of Methane Observations Across Scales: Strategies for Deploying a Multitiered Observing Network
	Cusworth D.H.; Duren R.M.; Yadav V.; Thorpe A.K.; Verhulst K.; Sander S.; Hopkins F.; Rafiq T.; Miller C.E.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:7
英文摘要	Regional methane emissions monitoring is rapidly expanding with increased coverage of surface, airborne, and satellite instruments. We pilot a multitiered observing system in the Los Angeles Basin. We combine surface methane measurements from the Los Angeles Megacities Carbon Project, mountaintop retrievals from the CLARS-FTS instrument, and space-based XCH4 retrievals from the TROPOMI instrument into a single monitoring framework. We simulate these observations using a high-resolution tracer transport model. Using inverse methods, we compare the sensitivity of each observing system component to various emissions sources. Combining multiple observing system into one framework allows for increased spatial and temporal sensitivity to methane emissions. We find a close correspondence between these inverse flux trends and independent airborne AVIRIS-NG methane plume trends over a large landfill in the Los Angeles Basin. These results show that multitiered observing systems can reveal insights about sub-basin scale methane emissions, which can be used to drive decision support. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Decision support systems; Inverse problems; Decision supports; Los Angeles Basin; Methane emissions; Monitoring frameworks; Observing systems; Satellite instruments; Temporal sensitivity; Tracer transport; Methane; airborne survey; AVIRIS; carbon emission; megacity; methane; observational method; satellite sensor; tracer; California; Los Angeles Basin; United States
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170511
作者单位	Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States; University of Arizona, Tucson, AZ, United States; Department of Environmental Sciences, University of California, Riverside, CA, United States
推荐引用方式 GB/T 7714	Cusworth D.H.,Duren R.M.,Yadav V.,et al. Synthesis of Methane Observations Across Scales: Strategies for Deploying a Multitiered Observing Network[J],2020,47(7).
APA	Cusworth D.H..,Duren R.M..,Yadav V..,Thorpe A.K..,Verhulst K..,...&Miller C.E..(2020).Synthesis of Methane Observations Across Scales: Strategies for Deploying a Multitiered Observing Network.Geophysical Research Letters,47(7).
MLA	Cusworth D.H.,et al."Synthesis of Methane Observations Across Scales: Strategies for Deploying a Multitiered Observing Network".Geophysical Research Letters 47.7(2020).