John Worden

TL;DR: It is shown that biomass burning emissions of methane decreased by 3.7 (±1.4) Tg CH4 per year from the 2001–2007 to the 2008–2014 time periods using satellite measurements of CO and CH4, nearly twice the decrease expected from prior estimates.

TL;DR: This article conducted a global inverse analysis of 2010-2018 GOSAT observations to better understand the factors controlling atmospheric methane and its accelerating increase over the 2010 -2018 period, and showed large 2010−2018 increases in anthropogenic methane emissions over South Asia, tropical Africa, and Brazil, coincident with rapidly growing livestock populations in these regions.

TL;DR: In this paper, the reported uncertainties of version 7 OCO-2 XCO_2 measurements were evaluated and attributed to uncertainties in total column atmospheric CO-2 measurements from the OCO2 instrument and their calculated uncertainties within small regions in which natural CO_2 variability is expected to be small relative to variations imparted by noise or interferences.

TL;DR: In this paper, the authors used the Aura Tropospheric Emission Sounder (TES) satellite instrument to place constraints on the role of tropical fire emissions versus microbial production during the 2006 El Nino, a time of significant fire emissions from Indonesia.

TL;DR: In this paper, the authors demonstrate the potential for estimating lower tropospheric CH4 concentrations through the combination of free-tropospheric methane measurements from the Aura Tropospheric Emission Spectrometer (TES) and XCH4 (dry-mole air fraction of methane) from the Greenhouse gases Observing SATellite - Thermal And Near-infrared for carbon Observation (GOSAT TANSO, herein GOSAT for brevity).