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SUMMARY:The Hub Talks Special Edition: Methane Emission Insights from MethaneSAT mission: Ritesh Gautam (EDF)
DESCRIPTION:Speaker: Dr. Ritesh Gautam\, Environmental Defense Fund (EDF) \n\n\n\nShort bio: Dr. Ritesh Gautam is a Lead Senior Scientist on MethaneSAT and MethaneAIR missions at Environmental Defense Fund (EDF). He oversees remote sensing projects at EDF in order to produce actionable data products and policy-relevant insights for quantifying and mitigating methane emissions\, leveraging the broader multi-satellite ecosystem. Dr. Gautam ensures EDF’s policy strategy to inform emission mitigation efforts are grounded in science-based observations and high-impact research. Prior to EDF\, he served as a tenured faculty member at the Indian Institute of Technology (IIT) Bombay\, and previously was a Research Scientist at NASA Goddard Space Flight Center. His research interests over the last two decades include remote sensing of methane\, aerosols\, clouds and cryosphere\, as well as developing improved understanding of pollution effects on air quality\, climate and monsoon. He has published over 80 papers including in PNAS\, Nature Communications\, Science Advances. Dr. Gautam is a recipient of the Scientific Leadership Award by NASA Goddard’s Earth Science Division. He serves as co-Chair of the ACAM program – a joint IGAC/APARC activity on Atmospheric Composition and Asian Monsoon (ACAM)\, focused on scientific workshops\, capacity building and field campaigns coordination. \n\n\n\nAbstract: \n\n\n\nThe past two and a half decades have witnessed a revolution in methane remote sensing techniques\, platforms and emission quantification approaches. Successive satellite missions starting from SCIAMACHY followed by GOSAT and TROPOMI missions have provided high-quality scientific data on methane at the global scale. This talk will focus on MethaneSAT which was designed to directly provide policy-relevant data on emissions for monitoring and mitigation\, with unprecedented science requirements to obtain the highest possible precision from space. MethaneSAT made observations during 2024-2025 and the analysis of emissions data focused on the oil and gas sector\, with select agricultural regions around the world. The specific emission data products include total regional methane emissions\, diffuse area emissions and high-emitting point sources. With a swath width of 220 km at nadir\, extendable to greater than 400 km mapping due to the satellite’s pointing capability\, MethaneSAT acquired high-resolution images that mapped oil and gas basins around the world. The underlying data are spatially resolved at 110 m x 400 m\, with a column integrated methane retrieval precision of ~3 ppb aggregated to 2 km x 2 km. The high-precision measurements were an integral requirement of the satellite mission detecting fine-scale enhancements\, thus providing robust quantification of regional emissions and revealing individual emission hotspots. Methane fluxes are produced\, using atmospheric inversion techniques\, as spatially gridded data products of 4 km x 4 km resolution covering oil and gas basins and agricultural regions. In addition to MethaneSAT\, it’s airborne version MethaneAIR has flown across the contiguous USA and collects similar high-precision and higher-resolution data providing an independent assessment of regional methane emissions. We will present a comprehensive synthesis of emissions data from major oil/gas basins around the world. The data are publicly available via Google Earth Engine and Google Cloud\, with further information available at methanesat.org. \n\n\n\n \n\n\n\n________________________________________________________________________________ \n\n\n\nMicrosoft Teams meeting \n\n\n\n\n\n\n\nJoin: https://teams.microsoft.com/meet/324629278100396?p=n7lwR4cvbKqdn69ZkL \n\n\n\nMeeting ID: 324 629 278 100 396 \n\n\n\nPasscode: hK9M5tH2 \n\n\n\n \n\n\n\nNeed help? | System reference \n\n\n\nDial in by phone \n\n\n\n+39 02 0062 4740\,\,314746147 Italy\, Milan \n\n\n\nFind a local number \n\n\n\nPhone conference ID: 314 746 147# \n\n\n\nJoin on a video conferencing device \n\n\n\nTenant key: teams@meet.esa.int \n\n\n\nVideo ID: 128 256 400 8 \n\n\n\nMore info \n\n\n\nFor organizers: Meeting options | Reset dial-in PIN \n\n\n\n\n\n\n\nOrg help | Privacy and security
URL:https://sciencehub.esa.int/event/the-hub-talks-special-edition-methane-emission-insights-from-methanesat-mission-ritesh-gautam-edf/
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