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Record W2312468974 · doi:10.1190/1.3659072

Gravity gradiometry: Systems, applications, and future prospects

2011· article· en· W2312468974 on OpenAlexaff
Daniel DiFrancesco

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldEarth and Planetary Sciences
TopicGeophysics and Gravity Measurements
Canadian institutionsLockheed Martin (Canada)
Fundersnot available
KeywordsComputer scienceComputer graphics (images)

Abstract

fetched live from OpenAlex

Gravity gradiometer systems have been deployed for airborne geophysical surveys for over a decade. The growth and acceptance of this capability has been steady as operational and data processing improvements have continually been made. Systems have been built and deployed in both partial and full‐tensor configurations. A wide variety of survey vehicles have been used including land, marine, and airborne platforms. Applications for mining and hydrocarbon exploration have led the way, while void detection and submarine navigation continue to provide challenging opportunities. Emerging uses of this high‐resolution technology include aquifer detection and characterization, carbon dioxide sequestration monitoring, enhanced oil recovery (EOR), and geothermal exploration. Many of these scenarios will require higher performance systems and better data analysis capabilities. A number of gravity gradient sensor developments are ongoing, as well as significant advances in terrain compensation and detection algorithms. Some writers are saying that gravity gradiometry is “transforming exploration” (OilVoice, 2011). This paper will highlight some of gradiometry's transforming attributes.

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)0.005
metaresearch head score (Gemma)0.003
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: none
GenreCandidate signal: Review · Consensus signal: Review
Teacher disagreement score0.006
Threshold uncertainty score0.024

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0050.003
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0020.003
Science and technology studies0.0010.003
Scholarly communication0.0030.005
Open science0.0010.002
Research integrity0.0030.002
Insufficient payload (model declined to judge)0.0060.002

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 head0.024
GPT teacher head0.201
Teacher spread0.177 · 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 designTheoretical or conceptual
Domainnot available
GenreReview

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
Published2011
Admission routes1
Has abstractyes

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