Analysis on Correlation between Groundwater Table and Precipitation in Xi'an City
Bibliographic record
Abstract
The rainfall infiltration is one of the important replenishment sources for the increasing groundwater table.Analysis of the correlation between groundwater table and precipitation can provides theoretical reference for the infiltration of regional urban rainfall utilization.According to the given dates of groundwater table and precipitation from related gauging stations,this paper analyzed the correlation between groundwater table and precipitation in Xi'an city.The result shows that the coefficient of the annual groundwater table and annual mean precipitation is 0.6799 in flood plain areas,which is the largest,while the smallest one is 0.228,which occurs in the loess tableland during the period of 1983-2003.The coefficient between the annual variation of groundwater table and annual variation of precipitation is 0.482 from 2002 to 2003.From the comparative analyses of correlation between the monthly variations of groundwater table and precipitation on the basis of 99 data sets of them in 2003,only 40 data sets show the considerable correlation.
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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 | 0.002 | 0.003 |
| 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) | 0.001 | 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".