{"id":"W2146858079","doi":"10.1657/1938-4246-41.4.497","title":"Climatic Signals in δ<sup>13</sup>C and δ<sup>18</sup>O of Tree-rings from White Spruce in the Mackenzie Delta Region, Northern Canada","year":2009,"lang":"en","type":"article","venue":"Arctic Antarctic and Alpine Research","topic":"Tree-ring climate responses","field":"Earth and Planetary Sciences","cited_by":64,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Waterloo; Aboriginal Affairs Northern Dev Canada; Carleton University","funders":"Natural Sciences and Engineering Research Council of Canada","keywords":"δ18O; δ13C; Relative humidity; Atmospheric sciences; Latitude; Stomatal conductance; Humidity; Precipitation; Delta; Environmental science; Stable isotope ratio; Isotopes of carbon; Oxygen-18; Growing season; Climatology; Dendrochronology; Isotopes of oxygen; Chemistry; Total organic carbon; Botany; Geology; Environmental chemistry; Photosynthesis; Biology; Geography; Meteorology; Physics","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":[0.0001518768,0.0001532182,0.0001840174,0.0005920621,0.0006834597,0.0005267622,0.0002459013,0.0001328637,0.0006583105],"category_scores_gemma":[0.0003469078,0.0001230517,0.000104,0.000583236,0.0002845915,0.000128959,0.0002550356,0.000141927,0.0001215564],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.001891453,"about_ca_system_score_gemma":0.0012111,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.6695286,"about_ca_topic_score_gemma":0.8786884,"domain_scores_codex":[0.9999028,0.000006602417,0.000005726429,0.00002696046,0.00002450152,0.00003334492],"domain_scores_gemma":[0.9996222,0.00003174462,0.00006250703,0.00001455795,0.0001872567,0.00008168658],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0001081108,0.00001286009,0.9832998,0.00001695221,0.00004691044,0.00007224265,0.0005125493,0.0001353504,0.01245803,0.000024745,0.0001426435,0.003169721],"study_design_scores_gemma":[9.717184e-7,0.000003306356,0.9993997,0.000001334314,0.000004140266,0.00001746918,0.0001478372,0.0000497414,0.0002187983,0.000002422692,0.0001528454,0.000001495301],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9993578,0.00004855963,0.00001585355,0.000007621727,8.287746e-7,0.000001384259,0.000320703,0.000001979068,0.0002453441],"genre_scores_gemma":[0.9992082,0.00004113299,0.00004884979,0.000007855197,0.000001022064,0.000002244415,0.0005294967,0.000002063822,0.0001591978],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.3304714,"threshold_uncertainty_score":0.6648352,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.03812437937242455,"score_gpt":0.2762928900632317,"score_spread":0.2381685106908072,"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."}}