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Record W4412754656 · doi:10.11159/iccste25.446

Determination of Ash Dam Facility Surface Displacement Using InSAR

2025· article· en· W4412754656 on OpenAlexvenueno aff
Rebecca Alowo, Innocent Musonda, Daphine Achiro, Agneta Were, Adetayo Onososen, Funeka Grootboom

Bibliographic record

VenueProceedings of the International Conference on Civil, Structural and Transportation Engineering · 2025
Typearticle
Languageen
FieldEngineering
TopicDam Engineering and Safety
Canadian institutionsnot available
Fundersnot available
KeywordsInterferometric synthetic aperture radarDisplacement (psychology)Environmental scienceRemote sensingGeologySynthetic aperture radar

Abstract

fetched live from OpenAlex

This article articulates the determination of Ash Dam Facility Surface Displacement Using InSAR at in South Africa.ADF can fail due to a variety of factors, including structural instability, seepage, or seismic activity.Therefore, using InSAR technology there is a need for threats to be identified and responded to promptly to mitigate consequences such as loss of life and property that can occur from dam failures.Interferometric Synthetic Aperture Radar (InSAR) is a powerful remote sensing technology that has proven invaluable for monitoring the stability and integrity of ash dams.The study used Vertex, which is the Alaska Satellite Facility's (ASF) data search application for remotely sensed imagery of the earth, providing convenient and powerful discovery and download of SAR data, as well as direct access to thematic datasets.ASF Data Search is an easy-to-use search tool for finding SAR data and freely processing higher level SAR products such as InSAR and Auto-RIFT products with ASF's service.The study conducted a time series analysis using Mintpy on the OpenSAR Lab server.The Mintpy toolbox is a Python 3 software for small baseline InSAR time series analysis.The input is a stack of differential interferograms that form a fully connected network.The findings were that the ash dam facility has undergone a total displacement of 200 cm vertically and 310cm laterally.The coordinates in terms of latitude and longitude of this affected area in (7145360,739280) and (7160480, 714480) respectively.In conclusion satellite remote sensing offers a cost and time effective way to monitor large infrastructure assets which would otherwise be a very resource-demanding task via conventional methods.

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 distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.367
Threshold uncertainty score0.465

Codex and Gemma teacher scores by category

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 integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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 head0.014
GPT teacher head0.232
Teacher spread0.218 · 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 teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designSimulation or modeling
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".

Quick stats

Citations0
Published2025
Admission routes1
Has abstractyes

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Same venueProceedings of the International Conference on Civil, Structural and Transportation EngineeringSame topicDam Engineering and SafetyFrench-language works237,207