{"id":"W4391218384","doi":"10.1021/acs.est.3c03160","title":"Ground-Based Mobile Measurements to Track Urban Methane Emissions from Natural Gas in 12 Cities across Eight Countries","year":2024,"lang":"en","type":"article","venue":"Environmental Science & Technology","topic":"Atmospheric and Environmental Gas Dynamics","field":"Environmental Science","cited_by":30,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Toronto; Environment and Climate Change Canada","funders":"HORIZON EUROPE Marie Sklodowska-Curie Actions; Natural Environment Research Council; Environment Canada; Nanjing University; University of Toronto; Rijksuniversiteit Groningen; Environment and Climate Change Canada; European Commission; Universiteit Utrecht; Sight Research UK; Imperial College London; Akademia Górniczo-Hutnicza im. Stanislawa Staszica; Natural Sciences and Engineering Research Council of Canada; Environmental Defense Fund; Royal Holloway, University of London; Canada Foundation for Innovation; Ontario Research Foundation","keywords":"Methane; Environmental science; Greenhouse gas; Natural gas; Methane emissions; Emission inventory; Track (disk drive); Range (aeronautics); Methane gas; Geography; Environmental engineering; Meteorology; Air quality index; Engineering; Chemistry; Waste management; Geology","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":false,"about_ca":true,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0002205733,0.0002942959,0.0002101462,0.0009364738,0.0002034227,0.0004079093,0.0002269304,0.0003420708,0.0004877609],"category_scores_gemma":[0.0005122647,0.000169064,0.0002199685,0.001665583,0.0001436159,0.0003079371,0.0004200513,0.0001955633,0.0002266117],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0003512373,"about_ca_system_score_gemma":0.0002065877,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.02756258,"about_ca_topic_score_gemma":0.06025495,"domain_scores_codex":[0.9997925,0.00003858073,0.00001309808,0.00007121106,0.00003617011,0.00004843272],"domain_scores_gemma":[0.9996494,0.00006036333,0.00008554939,0.00004641155,0.0001165056,0.00004171054],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0002203825,0.000147656,0.9637813,0.00006744343,0.0001511208,0.0002076439,0.0004568245,0.01377838,0.00604219,0.0001716676,0.001215053,0.01376028],"study_design_scores_gemma":[0.00002580088,0.0001095042,0.9789743,0.00001628401,0.00005404841,0.00007138556,0.0009826517,0.01540428,0.002439573,0.00006219926,0.001840174,0.00001986183],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9971643,0.00002715565,0.0005462516,0.0000112748,0.000002267137,0.0000131227,0.00180877,0.00003256497,0.0003941862],"genre_scores_gemma":[0.9951081,0.00004779956,0.001641956,0.00001134332,0.000002760042,0.0000356022,0.002878789,0.000009509663,0.0002642053],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.02756258,"threshold_uncertainty_score":0.05480433,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.008146892776536659,"score_gpt":0.2358941176587946,"score_spread":0.2277472248822579,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}