Preprints
https://doi.org/10.5194/acp-2022-518
https://doi.org/10.5194/acp-2022-518
 
21 Jul 2022
21 Jul 2022
Status: this preprint is currently under review for the journal ACP.

A versatile spaceborne architecture for immediate monitoring of the global methane pledge

Yuchen Wang1, Xvli Guo1, Yajie Huo1, Mengying Li2, Yuqing Pan1, Shaocai Yu2, Alexander Baklanov3, Daniel Rosenfeld4, John H. Seinfeld5, and Pengfei Li1 Yuchen Wang et al.
  • 1College of Science and Technology, Hebei Agricultural University, Baoding, Hebei 071000, P.R. China
  • 2Research Center for Air Pollution and Health; Key Laboratory of Environmental Remediation and Ecological Health, Ministry of Education, College of Environment and Resource Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, P.R. China
  • 3Science and Innovation Department, World Meteorological Organization (WMO), Geneva, Switzerland
  • 4Institute of Earth Science, The Hebrew University of Jerusalem, Jerusalem, Israel
  • 5Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125, USA

Abstract. The global methane pledge paves a fresh, critical way toward Carbon Neutrality. However, it remains largely invisible and highly controversial due to the fact that planet-scale and plant-level methane retrievals have rarely been coordinated. This has never been more essential within a narrow window to reach the Paris target. Here we present a versatile spaceborne architecture to address this issue. Using this framework, we patrol the world, like the United States, China, the Middle East, and North Africa, and simultaneously uncover methane-abundant regions and plumes. These include new super-emitters, potential leakages, and unprecedented multiple plumes in a single source. More importantly, this framework is shown to challenge official emission reports that possibly mislead estimates from global, regional, to site scales, particularly by missing super-emitters. We reveal that this framework can enable ready-made satellites to initiate monitoring of the global methane pledge immediately and is also versatile for upcoming stereoscopic measurements and artificial intelligence techniques.

Yuchen Wang et al.

Status: open (until 01 Sep 2022)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse

Yuchen Wang et al.

Yuchen Wang et al.

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Short summary
Substantial advances have been made in recent years toward detecting and quantifying methane super-emitters from space. However, such advances have rarely been expanded to measure the global methane pledge because large-scale swath and high-resolution sampling have not been coordinated. Here we present a versatile spaceborne architecture that can juggle planet-scale and plant-level methane retrievals, challenge official emission reports, and versatile for upcoming stereoscopic measurements.
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