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Record W1975378010 · doi:10.1029/2005jc003093

Warming and freshening of Baffin Bay, 1916–2003

2006· article· en· W1975378010 on OpenAlexaboutno aff
M. Zweng, Andreas Münchow

Bibliographic record

VenueJournal of Geophysical Research Atmospheres · 2006
Typearticle
Languageen
FieldEarth and Planetary Sciences
TopicGeology and Paleoclimatology Research
Canadian institutionsnot available
Fundersnot available
KeywordsBayOceanographyGeologySillArcticContinental shelfHydrographySea iceClimatology

Abstract

fetched live from OpenAlex

Regression analysis of historical hydrographic data is used to determine changes in temperature and salinity in Baffin Bay for the time period from 1916 to 2003. We find two distinct sets of changes in the Baffin: First, areas affected by the Atlantic inflow to Baffin Bay show substantial and statistically significant warming trends. In the more than 2000 m deep basin the warming peaks at 0.11 ± 0.06°C/decade at 700 m depth below the 640 m sill depth of Davis Strait connecting Baffin Bay to the North Atlantic Ocean. A vertical heat flux divergence of 0.25 W/m2 is required to warm Baffin Bay below 900 m by the amount observed. The required heat appears to be advected from the shelf and slope regions of the eastern Labrador Sea via Davis Strait along the west Greenland shelf break and diffuses vertically and horizontally into the deep central basin. The North Atlantic Oscillation index accounts for about 30% of the interannual variance of temperature fluctuations below the Davis Strait sill depth. Second, areas affected by Arctic inflow to Baffin Bay show a marginally significant freshening of up to about 0.086 ± 0.039 psu/decade. This freshening trend extends along the western margin of Baffin Island to Davis Strait and into the Labrador Sea. The freshening in the northern reaches of Baffin Bay is similar in size to that at its southern reaches. Temporal variability of annual composites between these locations appears to be in phase, suggesting a swift transition of Arctic waters at 76°N to Labrador Sea waters at 62°N.

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)0.001
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 score0.591
Threshold uncertainty score0.814

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.002
Science and technology studies0.0010.000
Scholarly communication0.0010.000
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 head0.027
GPT teacher head0.294
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".

Quick stats

Citations68
Published2006
Admission routes1
Has abstractyes

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