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Record W222028279

Good Ozone, Bad Ozone

2013· article· en· W222028279 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

VenueThe Science Teacher · 2013
Typearticle
Languageen
FieldEarth and Planetary Sciences
TopicAtmospheric Ozone and Climate
Canadian institutionsnot available
Fundersnot available
KeywordsMontreal ProtocolOzone layerTropospheric ozoneOzoneOzone depletionAtmosphere (unit)Atmospheric sciencesEnvironmental scienceStratosphereMeteorologyChemistryGeographyGeology
DOInot available

Abstract

fetched live from OpenAlex

One Free-Response Question (FRQ) on the Advanced Placement (AP) Environmental Science exam this spring addressed ozone (see On the web). Those knowledgeable about atmospheric chemistry might ask: or tropospheric? Well, the FRQ asked about both! Why is that tough? Most high school students, even those in advanced science classes, struggle to correctly distinguish between stratospheric ozone and tropospheric ozone. So, let's review. Strat ospheric ozone (aka good ozone) Part of our atmosphere's stratospheric layer contains a naturally high concentration of ozone ([O.sub.3]) molecules. These molecules are in a dynamic equilibrium with oxygen ([O.sub.2]) molecules--constantly decomposing and forming upon exposure to ultraviolet (UV) radiation. molecules absorb some UV radiation, reducing our exposure at the Earth's surface, where it can cause sunburns, skin cancer, and cataracts. Stratospheric ozone also mitigates UV radiation's inhibition of photosynthesis and plant growth (see On the web). The depletion of this good ozone layer by emissions of ozone-depleting substances (ODSs), such as chlorofluorocarbons, is of global concern. In 1987, the Montreal Protocol was passed to reduce ozone depletion. According to the 2010 assessment of the United Nations Environment Programme (UNEP), the protocol successfully controlled the global production and consumption of ODSs over the last two decades. Nevertheless, ozone depletion will continue for many more decades because several key ODSs last a long time in the atmosphere after emissions end (see On the web). Tropospheric ozone (aka bad ozone) In the troposphere--the lowest part of Earth's atmosphere--ozone forms as a secondary air pollutant. Fossil fuel combustion, among other activities, leads to ozone formation through a complex series of photochemical reactions. The United States Environmental Protection Agency (EPA) provides extensive information on ground-level ozone (see On the web). Bad tropospheric ozone causes throat irritation and worsens respiratory problems in humans and leaf damage and reduced growth in plants. Urban areas experience this ozone as a major component of photochemical smog. Classroom activitiies To further understand stratospheric ozone, send your students on the Ozone Hole Tour created by the Centre for Atmospheric Science at Cambridge University (see On the web). …

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 categoriesInsufficient payload (model declined to judge)
Consensus categoriesInsufficient payload (model declined to judge)
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.275
Threshold uncertainty score0.989

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0010.001
Scholarly communication0.0000.001
Open science0.0010.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0300.012

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 head0.014
GPT teacher head0.219
Teacher spread0.205 · 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