{"id":"W3207925304","doi":"10.1017/jog.2021.102","title":"Shallow firn cores 1989–2019 in southwest Greenland's percolation zone reveal decreasing density and ice layer thickness after 2012","year":2021,"lang":"en","type":"article","venue":"Journal of Glaciology","topic":"Cryospheric studies and observations","field":"Earth and Planetary Sciences","cited_by":61,"is_retracted":false,"has_abstract":true,"ca_institutions":"Simon Fraser University","funders":"National Aeronautics and Space Administration; National Science Foundation","keywords":"Firn; Geology; Meltwater; Greenland ice sheet; Ice sheet; Ice core; Snow; Geomorphology; Ice stream; Physical geography; Sea ice; Oceanography; Cryosphere","routes":{"ca_aff":true,"ca_fund":false,"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":[0.0002199163,0.0001678394,0.0002044496,0.0008333848,0.0003848815,0.0004604349,0.0002740058,0.0002026455,0.0008195173],"category_scores_gemma":[0.0003040574,0.0001197933,0.0001964277,0.0005502134,0.0003136966,0.0003416904,0.0004324511,0.0001629252,0.0001387939],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.001032021,"about_ca_system_score_gemma":0.000467699,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.09989261,"about_ca_topic_score_gemma":0.2912482,"domain_scores_codex":[0.9999212,0.000004959633,0.000005310584,0.00002848948,0.00001167428,0.00002832672],"domain_scores_gemma":[0.9997267,0.00002060162,0.00009751765,0.00002061376,0.00005710346,0.00007742915],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0001141423,0.00002381259,0.990265,0.00001570551,0.00004702495,0.00009473779,0.0003189628,0.0002425236,0.004724386,0.00003366749,0.0003081277,0.00381191],"study_design_scores_gemma":[7.069494e-7,0.000002824159,0.9995863,0.000001703341,0.000002370742,0.00001001448,0.0000637078,0.0000980558,0.0001305212,0.000003143626,0.00009999904,6.403588e-7],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9989421,0.00004137185,0.00004040904,0.0000113748,0.000001858566,0.000001722046,0.0006830856,0.000006408082,0.0002716162],"genre_scores_gemma":[0.9985116,0.00002767606,0.00009229808,0.0000155097,0.000002525074,0.000003725623,0.001084772,0.000002776872,0.0002591421],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.09989261,"threshold_uncertainty_score":0.1986223,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01990462437661027,"score_gpt":0.2334773390780039,"score_spread":0.2135727147013936,"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."}}