ASSESSING THE ROLE OF FRAMEWORK GEOLOGY ON BARRIER ISLAND GEOMORPHOLOGY
Bibliographic record
Abstract
Extreme storms, hurricanes, nor’easters, and tropical depressions can cause widespread erosion and washover on barrier islands and threaten coastal communities. The strong winds and waves of these storms can erode the beach and dunes, causing significant damage to coastal infrastructure and threatening human lives. Coastal vulnerability and resiliency depend on the coastal morphology (i.e. nearshore, beach, and dune morphology) in conjunction with storminess (i.e. storm frequency and magnitude) and the rate of sea level rise. Variations in the initial coastal morphology, such as undulations in dune height, can propagate through as heterogeneity in the modern barrier island morphology. Given that the modern landscape can inherit features and patterns of variability through time, it is important to understand what factors influenced the initial coastal morphology in order to more accurately predict future changes in response to storms and sea level rise. Improving the accuracy of future change models requires that we more accurately understand how a multitude of coastal processes interact to change the coastal geomorphology. \n\nThis dissertation demonstrates that framework geology is a significant driver of barrier island evolution by setting up initial variation in the beach and dune morphology and modifying normal conditions and coastal processes. Field-based surveys and public DEM data were used to: (1) extract beach, dune, and island morphometrics using a multiscale relative relief approach, (2) quantitatively demonstrate that paleochannels in the framework geology interact with daily wave reflection and refraction patterns to influence the modern barrier island, and (3) demonstrate that paleochannels in the framework geology can have an asymmetric influence on the barrier island morphology, given a persistent alongshore sediment transport gradient. In light of new information about the effects of framework geology on barrier island evolution, this dissertation proposes that the currently accepted theory of formation for Padre Island National Seashore is incomplete and should be re-evaluated in context of framework geology.
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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 | 0.001 | 0.005 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| 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".