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Record W78126468

Accelerated collapse of Arctic Ice Shelves

2009· article· en· W78126468 on OpenAlexaff
Luke Copland, Derek Mueller

Bibliographic record

VenueEGUGA · 2009
Typearticle
Languageen
FieldEarth and Planetary Sciences
TopicCryospheric studies and observations
Canadian institutionsUniversity of Ottawa
Fundersnot available
KeywordsIce shelfArctic ice packGeologyOceanographySea iceIcebergAntarctic sea iceCryosphereShelf iceFast iceIce divideIce sheetArcticPhysical geographyGeography
DOInot available

Abstract

fetched live from OpenAlex

Arctic ice shelves, formed from ancient marine, meteoric and glacial ice, have undergone dramatic recent losses from which they will likely not recover. They have contracted by >90% over the last century, with a loss of approximately a third of their total area since 2005 alone. The most recent period of disintegration started in 2002 with the fracturing in two of the Ward Hunt Ice Shelf. This was followed by the complete loss of the Ayles Ice Shelf in summer 2005 and the loss of a third of the Petersen Ice Shelf between 2005-7. In summer 2008 the entire Markham Ice Shelf calved away, 60% of the Serson Ice Shelf was lost, and there was extensive further fracturing and loss of the Ward Hunt Ice Shelf. There are now only four Ellesmere Island ice shelves remaining. These losses have imperilled unique ice-dependent microbial ecosystems both on and adjacent to these ice masses.

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 categoriesInsufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.026
Threshold uncertainty score0.998

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)0.0020.000

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 head0.031
GPT teacher head0.235
Teacher spread0.204 · 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.

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".

Quick stats

Citations0
Published2009
Admission routes1
Has abstractyes

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