Discussion of “Wind Speeds in ASCE 7 Standard Peak-Gust Map: Assessment” by Emil Simiu, Roseanne Wilcox, Fahim Sadek, and James J. Filliben
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Bibliographic record
Abstract
The ASCE 7 peak-gust map divides the U.S. into 2 main adjacent wind speed zones that do not reflect correctly the country's differentiated extreme wind climate. This discussion article comments on a paper (Simiu et al, April 2003) that shows that the methodology used in the map's development averages out real climatological differences and causes severe bias errors for the following reasons: 1) estimation of the speeds was based on superstations, of which 80% included stations that were also contained in 1 or more other superstations; 2) stations with significantly different physical geography and meteorology were in many cases included in the same superstation; 3) legitimate wind speed data was omitted from data records in cases in which analyses resulted in speeds different from those postulated in the map; and 4) off-the-shelf smoothing software was used that does not account for physical geography and meteorological differences. Case studies reported in the original article showed that the map entails severe bias errors, causing unnecessary waste due to overestimated wind loads or potential losses due to underestimated wind loads. In this commentary, Peterka and Esterday contend that Simiu et al fail to demonstrate an improved analysis methodology and have not understood the improvement of the gust map in reducing sampling error over the earlier fastest-mile map. The commentary authors address each of the four points above and conclude that while the current ASCE 7 wind map is based on reasonable analysis, additional analysis incorporating recent wind data would be beneficial.
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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 | 0.000 | 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 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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