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Record W209424388 · doi:10.5957/mt1.2007.44.3.151

Great Lakes Marine Air Emissions—We’re Different Up Here!

2007· article· en· W209424388 on OpenAlex
Richard W. Harkins

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

VenueMarine Technology and SNAME News · 2007
Typearticle
Languageen
FieldEnvironmental Science
TopicMaritime Transport Emissions and Efficiency
Canadian institutionsnot available
Fundersnot available
KeywordsPort (circuit theory)Marine engineeringEmission inventoryEnvironmental scienceMode (computer interface)EngineeringMeteorologyAir quality indexGeographyComputer scienceElectrical engineering

Abstract

fetched live from OpenAlex

This paper presents a bottom-up air emission inventory (AEI) for two ports on the Great Lakes. The details of every commercial vessel—US, Canadian, and Foreign Flag—and every visit to each port were cataloged for 2004. The actual open-lake speed, reduced speed to enter the port, the time to maneuver from the breakwall to the dock, and the times at the dock performing cargo operations were evaluated. Appropriate current emission factors for the type of propulsion engine and auxiliary engines for each vessel were used for the times in each mode to obtain total emissions. The Port of Cleveland, Ohio, is particularly important because that port was studied as part of the EPA's National Emission Inventory in 1999 and 2002, and those results were used as the marine transportation mode emissions baseline that is extrapolated to all other Great Lakes port states, cities, and counties based on port tonnages. The Port of Duluth, Minnesota, was chosen because it is primarily a shipping port as contrasted to Cleveland, which is primarily a receiving port. Vessel operations are quite different in each port. Using this detailed study and current emission factors, Great Lakes marine mode emissions are shown to be about one-half of original study estimates for Cleveland. The relative efficiency of the marine mode of transportation is reviewed for the Port of Cleveland. The Great Lakes vessels, ports, and trade patterns clearly show "We're different up here."

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)0.000
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 score0.381
Threshold uncertainty score0.982

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.001
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0190.000

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 head0.007
GPT teacher head0.219
Teacher spread0.211 · 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