{"id":"W2894066811","doi":"10.2136/vzj2018.02.0033","title":"Vadose Zone Gas Migration and Surface Effluxes after a Controlled Natural Gas Release into an Unconfined Shallow Aquifer","year":2018,"lang":"en","type":"article","venue":"Vadose Zone Journal","topic":"Atmospheric and Environmental Gas Dynamics","field":"Environmental Science","cited_by":43,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Calgary; University of Guelph; University of British Columbia","funders":"Natural Sciences and Engineering Research Council of Canada; University of Guelph","keywords":"Vadose zone; Methane; Soil gas; Aquifer; Groundwater; Natural gas; Geology; Subsurface flow; Diel vertical migration; Volatilisation; Environmental chemistry; Hydrology (agriculture); Soil science; Chemistry; Soil water; Geotechnical engineering","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":[0.00006175057,0.0001927939,0.0001873732,0.0001764097,0.0002315047,0.0002457375,0.0001932808,0.0001305309,0.0002453276],"category_scores_gemma":[0.0001249348,0.00009946058,0.0001223733,0.0001395832,0.0002907784,0.0001122807,0.0001601827,0.00020844,0.00003010108],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.001111488,"about_ca_system_score_gemma":0.0003821403,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0652247,"about_ca_topic_score_gemma":0.1027296,"domain_scores_codex":[0.9999335,0.000003672952,0.000002721285,0.00001862588,0.00001844397,0.00002303662],"domain_scores_gemma":[0.9999185,0.00001387309,0.00002785111,0.000004596344,0.00001656873,0.00001858947],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"observational","study_design_scores_codex":[0.001603079,0.0001671138,0.0997268,0.00004026503,0.00003536999,0.0004564821,0.0004469209,0.001624021,0.889093,0.00006222598,0.0001266596,0.006617958],"study_design_scores_gemma":[0.00003528559,0.001320548,0.7950565,0.000005614633,0.00003490338,0.00009516069,0.0003700664,0.005841313,0.196641,0.00002788463,0.0005510144,0.00002072593],"study_design_candidate":"observational","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9997695,0.000008257037,0.00005276852,0.000002117103,3.548188e-7,0.000004440523,0.00005724604,0.00000528527,0.0001000448],"genre_scores_gemma":[0.9993401,0.00001864119,0.000134008,0.000005689174,4.386685e-7,0.0000100766,0.0001217407,0.000001844295,0.0003673573],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.0652247,"threshold_uncertainty_score":0.1296901,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.003631619943556196,"score_gpt":0.2006156701790369,"score_spread":0.1969840502354807,"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."}}