{"id":"W2019762660","doi":"10.1016/j.jconhyd.2008.07.003","title":"Plume persistence caused by back diffusion from thin clay layers in a sand aquifer following TCE source-zone hydraulic isolation","year":2008,"lang":"en","type":"article","venue":"Journal of Contaminant Hydrology","topic":"Groundwater flow and contamination studies","field":"Environmental Science","cited_by":223,"is_retracted":false,"has_abstract":false,"ca_institutions":"University of Waterloo; University of Guelph","funders":"University of Waterloo","keywords":"Aquifer; Plume; Groundwater; Flushing; Geology; Water well; Hydrology (agriculture); Extraction (chemistry); Aquifer test; Diffusion; Environmental science; Soil science; Geotechnical engineering; Petroleum engineering; Groundwater recharge; Chemistry; Geography","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":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0004206726,0.0002186054,0.0005182843,0.0001188874,0.0002078134,0.00002085762,0.0002786981,0.0001628699,0.0004002513],"category_scores_gemma":[0.00005051873,0.0001808574,0.0001837263,0.0001941034,0.0001882267,0.0004753146,0.0001318092,0.000322023,0.0001349868],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0002548621,"about_ca_system_score_gemma":0.00002280779,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001131902,"about_ca_topic_score_gemma":0.0005838533,"domain_scores_codex":[0.9979863,0.0002296663,0.0006835264,0.0002913019,0.0004404032,0.0003688532],"domain_scores_gemma":[0.9991034,0.0001879675,0.000407614,0.000164218,0.00002289986,0.000113846],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.000295449,0.0003067644,0.6830519,0.000005208501,0.0001232145,0.0004738484,0.01402233,0.001153077,0.2906251,0.000001938587,0.003530276,0.006410831],"study_design_scores_gemma":[0.00793435,0.00122253,0.8796877,0.0001061976,0.0001701951,0.0003585714,0.001341657,0.01910974,0.004754151,0.00005168447,0.08460127,0.0006619917],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9717373,0.0004771833,0.02577514,0.001147989,0.0003045311,0.0001376856,0.000002865605,0.000009322563,0.0004080062],"genre_scores_gemma":[0.9955262,0.0001407,0.0001823134,0.0008302848,0.00006112467,0.000004870233,0.000005831126,0.00001599912,0.003232673],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.2858709,"threshold_uncertainty_score":0.7375152,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.0128890154103224,"score_gpt":0.2086216325620534,"score_spread":0.195732617151731,"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."}}