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Record W178973787

Geophysical and Geomorphic Mapping of Hershel Lake and Trout Lake in the Northern Yukon, Arctic Canada: Comparisons between Holocene and Pleistocene Lake Basins

2010· article· en· W178973787 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

aboutThe title or abstract carries a Canadian signal from the geographic lexicon.
no affNo Canadian affiliation: this work is invisible to an affiliation-only frame.
No Canadian affiliation. An affiliation-only frame, the usual design, would never have seen this work. It is one of the works that make the case for inverting the frame.

Bibliographic record

VenueHelmholtz-Zentrum für Polar-und Meeresforschung (Alfred-Wegener-Institut) · 2010
Typearticle
Languageen
FieldEngineering
TopicGeophysical Methods and Applications
Canadian institutionsnot available
Fundersnot available
KeywordsGeologyPermafrostShelf iceHoloceneArcticBedrockOceanographyMoraineGeomorphologyGround-penetrating radarPleistocenePhysical geographyPaleontologyGlacial periodArctic ice packAntarctic sea iceRadar
DOInot available

Abstract

fetched live from OpenAlex

Geophysical and geomorphic mapping was undertaken to better understand the evolution and sedimentary history and geomorphology of two lake basins in the Yukon Territory of the Western Canadian Arctic. Lake Herschel is a relatively young (Holocene) lake found in the centre of Herschel Island, an island in the Southern Beaufort Sea which is composed of permafrost and thick ice-rich sediments. Trout Lake" is located at the foothills of the British Mountains in a zone of thin cryotic and thin generally ice-poor sediments overlying bedrock along the northern Yukon Slope and likely formed during the Pleistocene. This is the first time that either lake has been mapped using geophysical methods. A Mala Ground Penetrating Radar (GPR) system with a 50MHz and 100 MHz antenna was used to map the lake basins and surrounding stratigraphy. The system was pulled along the surface of the frozen lakes in a grid of transects. Positioning control for the GPR data was collected with a GPS system. Validation data for depth control was provided by a number of holes drilled in the ice for water depth. Piston cores were obtained to characterize the sub-lake floor sediments.

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.

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)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.861
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.001
Science and technology studies0.0000.001
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0000.001
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 head0.016
GPT teacher head0.240
Teacher spread0.224 · 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