{"id":"W2806842645","doi":"10.1126/science.aaq0131","title":"Background levels of methane in Mars’ atmosphere show strong seasonal variations","year":2018,"lang":"en","type":"article","venue":"Science","topic":"Planetary Science and Exploration","field":"Physics and Astronomy","cited_by":322,"is_retracted":false,"has_abstract":true,"ca_institutions":"York University","funders":"Canadian Space Agency; Jet Propulsion Laboratory; Planetary Science Division; National Aeronautics and Space Administration; California Institute of Technology; Universidad Nacional Autónoma de México; Ministerio de Economía y Competitividad; Consejo Nacional de Ciencia y Tecnología","keywords":"Mars Exploration Program; Methane; Martian; Atmosphere of Mars; Astrobiology; Atmosphere (unit); Atmospheric methane; Environmental science; Sedimentary rock; Atmospheric sciences; Earth science; Geology; Chemistry; Geochemistry; Geography; Meteorology; Physics","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":false,"about_ca":false,"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":[0.0001727242,0.000268479,0.0002567554,0.0005051895,0.0003687394,0.0004418007,0.0002720552,0.0002751238,0.0006903575],"category_scores_gemma":[0.0003661174,0.0001554312,0.0001556411,0.0006223613,0.000198866,0.000230935,0.0003618477,0.0001941732,0.0001696997],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0002887352,"about_ca_system_score_gemma":0.0001090183,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.003106501,"about_ca_topic_score_gemma":0.004572829,"domain_scores_codex":[0.9997895,0.00002329928,0.000008252235,0.00007950608,0.00005668572,0.00004271642],"domain_scores_gemma":[0.9997589,0.00005757646,0.00007022103,0.00002760373,0.00005945316,0.00002627426],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0005063984,0.00008994566,0.6388702,0.000124954,0.0001419086,0.0003233676,0.0005050809,0.001932112,0.3265255,0.0001796288,0.0006541799,0.03014659],"study_design_scores_gemma":[0.000004976484,0.0001691624,0.9763172,0.000005502585,0.00002327286,0.0001580068,0.0001469393,0.001550845,0.02037881,0.00008861493,0.001147539,0.000009113193],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9977913,0.0002029318,0.0005019599,0.00003219974,0.000005272036,0.000003132623,0.0005184681,0.00006334385,0.0008813478],"genre_scores_gemma":[0.9989059,0.00006243634,0.0002979274,0.00001593815,0.000009505694,0.000005354704,0.0005760117,0.000009878346,0.0001170694],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.003106501,"threshold_uncertainty_score":0.006176829,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.04373966282797943,"score_gpt":0.2861478606537423,"score_spread":0.2424081978257628,"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."}}