Advancing shipping NO_x pollution estimation through a satellite-based approach.

ABSTRACT: Estimating shipping nitrogen oxides (NO_x) emissions and their associated ambient NO₂ impacts is a complex and time-consuming task. In this study, a satellite-based ship pollution estimation model (SAT-SHIP) is developed to estimate regional shipping NO_x emissions and their contribution to ambient NO₂ concentrations in China. Unlike the traditional bottom-up approach, SAT-SHIP employs satellite observations with varying wind patterns to improve the top-down emission inversion methods for individual sectors amidst irregular emission plume signals. Through SAT-SHIP, shipping NO_x emissions for 17 ports in China are estimated. The results show that SAT-SHIP performed comparably with the bottom-up approach, with an R<

SUBMITTER: Luo Z 

PROVIDER: S-EPMC10745280 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature