An observation-based, reduced-form model for oxidation in the remote marine troposphere.

ABSTRACT: The hydroxyl radical (OH) fuels atmospheric chemical cycling as the main sink for methane and a driver of the formation and loss of many air pollutants, but direct OH observations are sparse. We develop and evaluate an observation-based proxy for short-term, spatial variations in OH (Proxy_OH) in the remote marine troposphere using comprehensive measurements from the NASA Atmospheric Tomography (ATom) airborne campaign. Proxy_OH is a reduced form of the OH steady-state equation representing the dominant OH production and loss pathways in the remote marine troposphere, according to box model simulations of OH constrained with ATom observations. Proxy_OH comprises only eight variables that are generally observed by routine ground- or satelli

SUBMITTER: Baublitz CB 

PROVIDER: S-EPMC10451388 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature