{"id":"W2044062534","doi":"10.1007/978-94-007-0952-2_37","title":"Isotopic Assessment of Sources of Surface Water Nitrate within the Oldman River Basin, Southern Alberta, Canada","year":2004,"lang":"en","type":"book-chapter","venue":"","topic":"Groundwater and Isotope Geochemistry","field":"Earth and Planetary Sciences","cited_by":37,"is_retracted":false,"has_abstract":false,"ca_institutions":"University of Calgary","funders":"","keywords":"Tributary; Watershed; Hydrology (agriculture); Drainage basin; δ18O; Structural basin; Surface water; Environmental science; Geology; Geography; Stable isotope ratio; Geomorphology; Cartography","routes":{"ca_aff":true,"ca_fund":false,"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":[0.0003157516,0.000270201,0.0002234973,0.002487815,0.002207769,0.001305585,0.0007345918,0.0002309896,0.0007220694],"category_scores_gemma":[0.0003837479,0.000196802,0.0001582731,0.004889037,0.000557816,0.0002617307,0.0004394948,0.0001979681,0.0001140887],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0205883,"about_ca_system_score_gemma":0.01595773,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.9946932,"about_ca_topic_score_gemma":0.998886,"domain_scores_codex":[0.9997552,0.00001241389,0.0000101676,0.00003952598,0.0001382739,0.00004442038],"domain_scores_gemma":[0.9996181,0.00001750015,0.00002206685,0.000005991195,0.0003084736,0.0000278858],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0004017527,0.00007292289,0.7801617,0.0002941145,0.0001377747,0.001089709,0.005454658,0.005948496,0.01634508,0.003915885,0.007304588,0.1788733],"study_design_scores_gemma":[0.00001240272,0.00002744509,0.9686413,0.00008388376,0.000067167,0.0002190127,0.00436369,0.003158149,0.003554581,0.0005094777,0.01933222,0.00003086882],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9716285,0.00350859,0.001296025,0.0003484742,0.00002169619,0.00005355146,0.002615219,0.00005527972,0.02047271],"genre_scores_gemma":[0.973218,0.00287782,0.003801868,0.0000844932,0.000007412629,0.00001577402,0.001348497,0.00002364117,0.01862257],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.0205883,"threshold_uncertainty_score":0.1493793,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.007587348033257849,"score_gpt":0.174536480785527,"score_spread":0.1669491327522691,"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."}}