Abstract: The Pacific Decadal Oscillation and its effects on the climate on northwestern British Columbia and southeastern Alaska
Bibliographic record
Abstract
In order to interpret long-tenn paleoclimate records from regime shifts via time series plots. Next, to better detennine northwestern British Columbia and southeastern Alaska, there the relationship between the PDO and Aleutian Low (NPPI) is a need to know which regions are most sensitive to decadalwith the climate at the sites, the PDO and NPPI climate scale climate regime shifts. The Pacific Decadal Oscillation indices were plotted against the climate parameters and (PDO), a newly identified phenomenon, is an index of North regression analysis was perfonned. The linear relationship was Pacific sea surface temperature changes over the past century observed qualitatively by observing the slope of the linear and has been shown to exhibit strong decadal-scale regime trend line, and then quantitatively by detennining the strength shifts. The PDO has been positively correlated with North of the correlation coefficient (R value). Pacific Pressure Index (NPPI). The NPPI is an index of the From the results of this study, it was determined that the Aleutian Low-the low-pressure system that dominates the more southerly locations, Prince Rupert, Smithers, and Prince North Pacific and western North American wintertime George, were more sensitive to the PDO and the Aleutian Low climates. regime shifts than the more northerly locations. During the In this study, locations in northwestern British Columbia positive PDO phases (indicated by wanner sea surface (Prince Rupert, Smithers, Prince George, and Dease Lake) and temperatures) and deepened Aleutian Low phases, mean southeastern Alaska (Sitka and Juneau) were investigated to temperatures are higher and total snowfall is lower (indicated detennine if there is a relationship between the terrestrial by moderate to strong R values, >0.3), but there is no climate of these six locations, and the fluctuations, or regime significant relationship for total precipitation (indicated by shifts, associated with the PDO and the Aleutian Low. weak R values, <0.1 ). It is suggested that the strong and weak Wintertime (October to March) mean temperature, total correlation patterns between the PDO and/or a deepened precipitation (rain plus melted snow), total snowfall, and mean Aleutian Low with the climate in the different study locations sea level pressure data for these sites were obtained from the may be due to the regional effects of topography and thus Canadian Monthly Precipitation Database and the National regional wind direction and precipitation patterns. Climate Data Center and compared with PDO and NPPI
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".