{"id":"W4409843546","doi":"10.1016/j.geoderma.2025.117307","title":"Letter-to-the-Editor: Unfrozen water availability controls temperature-dependence of biogeochemical processes in frozen soils","year":2025,"lang":"en","type":"article","venue":"Geoderma","topic":"Climate change and permafrost","field":"Earth and Planetary Sciences","cited_by":0,"is_retracted":false,"has_abstract":false,"ca_institutions":"University of Waterloo","funders":"Natural Sciences and Engineering Research Council of Canada; Canada First Research Excellence Fund; Canada Excellence Research Chairs, Government of Canada","keywords":"Biogeochemical cycle; Soil water; Environmental science; Hydrology (agriculture); Soil science; Environmental chemistry; Geology; Chemistry; Geotechnical engineering","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":["insufficient_payload"],"consensus_categories":[],"category_scores_codex":[0.0003926121,0.0001646052,0.000269466,0.00009852403,0.00009154021,0.00006443476,0.000417169,0.0001411181,0.001988814],"category_scores_gemma":[0.0001402393,0.0000989929,0.00005342632,0.0003164941,0.0001089019,0.0001492131,0.0000473712,0.0002296703,0.0003162893],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.000007288152,"about_ca_system_score_gemma":0.00006883343,"about_ca_topic_candidate":true,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.003626322,"about_ca_topic_score_gemma":0.02015587,"domain_scores_codex":[0.9985893,0.00008067449,0.0003404628,0.000337461,0.0002386361,0.0004135097],"domain_scores_gemma":[0.9991932,0.0002799979,0.00003957962,0.0003161551,0.00009673336,0.00007433353],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"not_applicable","study_design_scores_codex":[0.0001927163,0.00006124589,0.8695533,0.0002899405,0.00002205268,0.00001428272,0.001645339,0.0003824457,0.03344369,0.000002381307,0.09356092,0.0008316656],"study_design_scores_gemma":[0.001717307,0.0001603404,0.3823732,0.0003544879,0.0000508127,0.00001453283,0.0004713151,0.001561856,0.2173303,0.001470291,0.393784,0.0007115458],"study_design_candidate":"observational","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9863026,0.0006465756,0.000004330381,0.008616948,0.001009596,0.0003670387,0.001605357,0.0000262834,0.001421273],"genre_scores_gemma":[0.9939966,0.00004999234,0.00001954995,0.004052007,0.0009768065,0.00001048966,0.0006820596,0.000003276385,0.000209242],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.4871801,"threshold_uncertainty_score":0.9989235,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.0132241615728188,"score_gpt":0.2304209816146837,"score_spread":0.2171968200418649,"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."}}