{"id":"W4408779096","doi":"10.1029/2024gb008409","title":"Water Column Structure and Nutrient Supply on the Northwest Atlantic Shelf: A Nitrate Isotope Study","year":2025,"lang":"en","type":"article","venue":"Global Biogeochemical Cycles","topic":"Isotope Analysis in Ecology","field":"Environmental Science","cited_by":2,"is_retracted":false,"has_abstract":true,"ca_institutions":"Bedford Institute of Oceanography; Fisheries and Oceans Canada; Dalhousie University","funders":"Ocean Frontier Institute","keywords":"Water column; Nitrate; Oceanography; Nutrient; Environmental science; Isotope; Geology; Stable isotope ratio; Water mass; Chemistry","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":[0.0001437722,0.0001246462,0.0001574111,0.0003703845,0.0004806551,0.000422489,0.0001570643,0.0002115145,0.0005263328],"category_scores_gemma":[0.0001924749,0.0001112934,0.0001850397,0.0004914569,0.0002526043,0.000181269,0.0002576372,0.0001417324,0.0001289703],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0009269101,"about_ca_system_score_gemma":0.0007405967,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.2631464,"about_ca_topic_score_gemma":0.4869727,"domain_scores_codex":[0.999936,0.000005972686,0.000004837479,0.00001796689,0.0000206262,0.0000145412],"domain_scores_gemma":[0.9997545,0.0000214126,0.00005211716,0.00001264125,0.00009874794,0.00006053578],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0001016566,0.00002196981,0.9886196,0.000007165251,0.00002499848,0.00008211481,0.0001734538,0.00008918877,0.00891517,0.00001808629,0.00005043233,0.0018962],"study_design_scores_gemma":[9.593103e-7,0.00001277615,0.9994916,0.00000156306,0.000004556393,0.00001450489,0.000128812,0.0001363507,0.000124056,0.000003004905,0.00008075884,0.000001058237],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9995779,0.00003149024,0.00002315843,0.000005776999,0.00000106626,0.000001430071,0.0001444554,7.318089e-7,0.0002139436],"genre_scores_gemma":[0.9993656,0.00003781021,0.00008859157,0.00001148206,0.000001408523,0.000001817082,0.0002443732,9.33771e-7,0.0002478788],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.2631464,"threshold_uncertainty_score":0.5232294,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.004497639122788435,"score_gpt":0.2165893054936129,"score_spread":0.2120916663708244,"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."}}