Attribution of individual methane and carbon dioxide emission sources using EMIT observations from space

• DOI: 10.1126/sciadv.adh2391
• Publication Date: 2023-11-17T19:01:01Z
• Authors: Andrew K. Thorpe; Robert O. Green; David R. Thompson; Philip G. Brodrick; John W. Chapman; Clayton D. Elder; Itziar Irakulis-L...; Daniel H. Cusworth; Alana K. Ayasse; Riley M. Duren; Christian Franken...; Luis Guanter; John R. Worden; Philip E. Dennison; Dar A. Roberts; K. Dana Chadwick; Michael L. Eastwood; Jay E. Fahlen; Charles E. Miller
• Keywords: Tonne; Carbon fibers; Atmospheric methane

Carbon dioxide and methane emissions are the two primary anthropogenic climate-forcing agents an important source of uncertainty in global carbon budget. Uncertainties further magnified when occur at fine spatial scales (<1 km), making attribution challenging. We present first observations from NASA's Earth Surface Mineral Dust Source Investigation (EMIT) imaging spectrometer showing quantification fine-scale (0.3 to 73 tonnes CH4 hour-1) sources (1571 3511 CO2 spanning oil gas, waste, energy sectors. For selected countries observed during 30 days EMIT operations, varied a regional scale, with largest total for Turkmenistan (731 ± 148 hour-1). These results highlight contributions current planned point imagers closing budgets.