Projection of multi-site daily temperatures over the Montréal area, Canada
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Bibliographic record
Abstract
This study presents a post-adjustment procedure for a multivariate multi-site statistical downscaling model (MMSDM) which can simultaneously downscale multiple predictands at multiple observation sites by combining multivariate multiple linear regression and the stochastic randomization procedure. In the post-adjustment procedure, bias and determinant adjustment factors correct the systematic bias on the downscaled series using atmosphere-ocean coupled global climate model (AOGCM) predictors, and prevent the propagation of systematic error to the projected future predictands. The MMSDM with the post-adjustment procedure is applied to project a realistic series of 2 predictands (daily T max and T min ) for 10 observation sites in the region of Montral (southern Qubec, Canada). The Canadian CGCM3 reference outputs and future outputs under the A1B and A2 SRES scenarios (2061-2100) were employed as AOGCM predictors. On average over the 10 observation sites, the monthly means of the daily T max and T min were increased by 2.0-4.7 and 2.7-5.4C while seasonal 90th percentile of daily T max and 10th percentile of daily T min (T max 90 and T min 10) were increased by 2.1-4.5 and 2.7-5.8C for the A1B and A2 scenarios with the MMSDM, respectively. Future T max and T min series showed higher increases in winter than in the other seasons, as anticipated from AOGCMs or regional climate models over the same area. The average diurnal temperature ranges of future series suggest small increases in spring and autumn. Finally, the projected series yielded frost seasons that are 23 and 28 d shorter, whereas 23 and 27 more days are projected for the length of the growing season than in the present-day climate series.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it