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Record W1548530006 · doi:10.1029/2012jd017810

The sea breeze/land breeze circulation in Los Angeles and its influence on nitryl chloride production in this region

2012· article· en· W1548530006 on OpenAlexaff
N. L. Wagner, Theran P. Riedel, J. M. Roberts, Joel A. Thornton, W. M. Angevine, E. J. Williams, B. M. Lerner, A. Vlasenko, Shao‐Meng Li, W. P. Dubé, D. J. Coffman, D. Bon, J. A. de Gouw, W. C. Kuster, J. B. Gilman, Steven S. Brown

Bibliographic record

VenueJournal of Geophysical Research Atmospheres · 2012
Typearticle
Languageen
FieldEarth and Planetary Sciences
TopicAtmospheric chemistry and aerosols
Canadian institutionsEnvironment and Climate Change Canada
Fundersnot available
KeywordsSea breezeBaySunriseAerosolChlorideSea saltBox modelEnvironmental sciencePlumeStructural basinMeteorologyMixing ratioAtmospheric sciencesClimatologyOceanographyChemistryGeologyGeography

Abstract

fetched live from OpenAlex

The sea breeze/land breeze diurnal circulation within the Los Angeles Basin and adjacent waters transports marine air into the basin during the day and urban air to Santa Monica Bay during the night. Nitryl chloride, ClNO 2 is a nocturnal trace gas formed from the heterogeneous reaction of dinitrogen pentaoxide (N 2 O 5 ) with chloride containing aerosol. Its photolysis after sunrise produces atomic chlorine radicals and regenerates NO 2 , both of which may increase ozone production. Mixing of the chloride source from marine sea salt with the urban NO x source in Los Angeles provides conditions ideal for the production of ClNO 2 . This paper presents an analysis using a wind profiler on the coast and measurements of ClNO 2 and its precursors made from both ship and aircraft to assess the prevailing meteorological conditions important for ClNO 2 production in this region, with a particular focus on the production over water within the land breeze phase of the circulation. A box model is used to calculate an upper limit to the amount of ClNO 2 capable of being produced strictly over Santa Monica Bay during the land breeze. On three out of the four nights of ClNO 2 measurements in Santa Monica Bay, the ClNO 2 exceeds the upper limit calculated using the box model and shows that the majority of the ClNO 2 is produced over the city and transported to Santa Monica Bay by the land breeze. This ClNO 2 transport suggests the sea breeze more efficiently transports aerosol chloride inland than land breeze transports NO x offshore.

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)0.000
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 score0.379
Threshold uncertainty score0.754

Distilled classifier scores by category (both heads)

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 communication0.0010.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

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 head0.035
GPT teacher head0.286
Teacher spread0.252 · 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

Citations83
Published2012
Admission routes1
Has abstractyes

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