Using multi-satellite observations to constrain ammonia emissions and unlock their potential over open water.

ABSTRACT: Reducing uncertainty in ammonia ([Formula: see text]) emissions, particularly those over open water, which have largely been unexplored, remains a key challenge. This study refines 2019 [Formula: see text] emissions over the south-central United States (SCUS) using inverse modeling technique with Cross-track Infrared Sounder (CrIS) data and assesses its impact on inorganic [Formula: see text]. We also present a novel assessment of [Formula: see text] emissions constrained by Infrared Atmospheric Sounding Interferometer (IASI) and CrIS datasets both individually and combined. For the first time, we demonstrate the potential of refining [Formula: see text] emissions over open water using satellite data, specifically over the northwestern Gulf of Mexico (NWGOM). Annual posterior NH₃ emissions

SUBMITTER: Momeni M 

PROVIDER: S-EPMC12287272 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature