{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T18:18:26Z","timestamp":1788286706393,"version":"build-2803163510"},"reference-count":30,"publisher":"National Academy of Sciences","issue":"36","license":[{"start":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T00:00:00Z","timestamp":1788220800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100018608","name":"DOC | NOAA | National Environmental Satellite, Data, and Information Service","doi-asserted-by":"publisher","award":["1332KP24C0023"],"award-info":[{"award-number":["1332KP24C0023"]}],"id":[{"id":"10.13039\/100018608","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100020967","name":"UN | United Nations Environment Programme","doi-asserted-by":"publisher","award":["DTIE22-EN5036"],"award-info":[{"award-number":["DTIE22-EN5036"]}],"id":[{"id":"10.13039\/100020967","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["www.pnas.org"],"crossmark-restriction":true},"short-container-title":["Proc. Natl. Acad. Sci. U.S.A."],"published-print":{"date-parts":[[2026,9,8]]},"abstract":"<jats:p>\n                    We present the results of a Very Large Methane Release (VLMR) experiment evaluating methane retrievals from the Geostationary Operational Environmental Satellites (GOES) Advanced Baseline Imagers (ABIs) and multiple low-Earth-orbit satellite instruments with high point-source detection thresholds. The experiment coordinated observations of a US gas pipeline blowdown with nine satellites, an aircraft, and a truck-based mobile laboratory. We used the GOES-16, -18, and -19 ABIs with revisits every 10 min to 7 s to quantify release magnitude and associated uncertainty. Best methane retrieval precision of 7% was achieved in the 30-s mesoscale scan modes averaged to 5 min, yielding an estimated methane plume detection threshold of 15 to 30 t h\n                    <jats:sup>\u22121<\/jats:sup>\n                    per m s\n                    <jats:sup>\u22121<\/jats:sup>\n                    of wind. GOES detected total emissions of 370 \u00b1 30 t over 42 to 63 min from two release points. Source rate and mass estimates are broadly consistent across measurement platforms, but the total detected release mass is ~25% lower than that reported by the operator based on pipeline volume and pressure. This discrepancy may reflect late-stage emissions below satellite detection thresholds and indicates a potential low bias in satellite estimates of total emissions from large transient releases. Coordinated field experiments such as VLMR can complement existing controlled-release satellite evaluation programs by providing a framework to validate observations of very large methane point sources.\n                  <\/jats:p>","DOI":"10.1073\/pnas.2603595123","type":"journal-article","created":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T17:58:11Z","timestamp":1788285491000},"update-policy":"https:\/\/doi.org\/10.1073\/pnas.cm10313","source":"Crossref","is-referenced-by-count":0,"title":["Coordinated satellite, aircraft, and ground-based observations of a large transient methane release"],"prefix":"10.1073","volume":"123","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7734-0076","authenticated-orcid":false,"given":"Tai-Long","family":"He","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/042nb2s44","id-type":"ROR","asserted-by":"publisher"}],"name":"Institute for Data, Systems, and Society, Massachusetts Institute of 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