biostudies-literatureUnknown5Oda TScience Earth Science System NASAQuantifying greenhouse gas (GHG) emissions from cities is a key challenge towards effective emissions management. An inversion analysis from the INdianapolis FLUX experiment (INFLUX) project, as the first of its kind, has achieved a top-down emission estimate for a single city using CO₂ data collected by the dense tower network deployed across the city. However, city-level emission data, used as <i>a priori</i> emissions, are also a key component in the atmospheric inversion framework. Currently, fine-grained emission inventories (EIs) able to resolve GHG city emissions at high spatial resolution, are only available for few major cities across the globe. Following the INFLUX inversion case with a global 1×1 km ODIAC fossil fuel CO₂ emission dataset, we further improveElementa (Washington, D.C.)28https://www.ebi.ac.uk/biostudies/studies/S-EPMC7447070biostudies-literatureOn the Impact of Granularity of Space-based Urban CO₂ Emissions in Urban Atmospheric Inversions: A Case Study for Indianapolis, IN.PMC7447070Rao PLauvaux TRichardson SJOda TMiles NLLu DGurney KRfalseOn the Impact of Granularity of Space-based Urban CO₂ Emissions in Urban Atmospheric Inversions: A Case Study for Indianapolis, IN.Quantifying greenhouse gas (GHG) emissions from cities is a key challenge towards effective emissions management. An inversion analysis from the INdianapolis FLUX experiment (INFLUX) project, as the first of its kind, has achieved a top-down emission estimate for a single city using CO₂ data collected by the dense tower network deployed across the city. However, city-level emission data, used as <i>a priori</i> emissions, are also a key component in the atmospheric inversion framework. Currently, fine-grained emission inventories (EIs) able to resolve GHG city emissions at high spatial resolution, are only available for few major cities across the globe. Following the INFLUX inversion case with a global 1×1 km ODIAC fossil fuel CO₂ emission dataset, we further improve2017-01-01T00:00:00Z20172025-04-04T10:00:20.475Z2020-08-31T07:04:40ZS-EPMC74470703285110310.1525/elementa.146