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Record W4414692041 · doi:10.11159/ijci.2025.013

Assessment of Surface Displacement at Ash Dam Facility Utilising InSAR

2025· article· en· W4414692041 on OpenAlexvenueno aff
Rebecca Alowo, Daphine Achiro, Innocent Musonda, Agneta Were, Adetayo Onososen, Funeka Grootboom

Bibliographic record

VenueInternational Journal of Civil Infrastructure · 2025
Typearticle
Languageen
FieldEngineering
TopicSynthetic Aperture Radar (SAR) Applications and Techniques
Canadian institutionsnot available
Fundersnot available
KeywordsInterferometric synthetic aperture radarDisplacement (psychology)Earth surfaceSurface (topology)Erosion

Abstract

fetched live from OpenAlex

This research delineates the assessment of surface displacement at the Ash Dam Facility in South Africa utilizing InSAR technology.ADF may fail owing to several circumstances, including structural instability, seepage, or seismic activity.Consequently, the application of InSAR technology necessitates the rapid identification and response to hazards in order to limit repercussions such as loss of life and property resulting from dam failures.Interferometric Synthetic Aperture Radar (InSAR) is an advanced remote sensing technology that is essential for assessing the safety and integrity of ash dams.The study utilized Vertex, the Alaska Satellite Facility's (ASF) data search application for remotely sensed imagery, facilitating efficient identification and download of SAR data, along with direct access to thematic datasets.ASF Data Search is a userfriendly tool for locating SAR data and efficiently processing advanced SAR products, including InSAR and Auto-RIFT, through ASF's services.The research performed a time series analysis with Mintpy on the OpenSAR Lab server.The Mintpy toolbox is a Python 3 application designed for modest baseline InSAR time series analysis.The input consists of a series of differential interferograms that create a completely interconnected network.The results indicated that the ash dam facility has experienced a total vertical displacement of 200 cm and a lateral displacement of 310 cm.The coordinates of the impacted area are (7145360, 739280) and (7160480, 714480) in terms of latitude and longitude.In conclusion, satellite remote sensing provides a cost-effective and time-efficient means to monitor extensive infrastructure assets, a task that would otherwise need significant resources through traditional approaches.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.006
Threshold uncertainty score0.012

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0010.000
Insufficient payload (model declined to judge)0.0010.000

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.

Opus teacher head0.005
GPT teacher head0.273
Teacher spread0.268 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

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".

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Citations0
Published2025
Admission routes1
Has abstractno

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