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Record W7048747086

Modelling soil temperature on the boreal plain with an emphasis on the rapid cooling period

2009· dissertation· en· W7048747086 on OpenAlexfundno aff

Bibliographic record

VenueKnowledge Commons (Lakehead University) · 2009
Typedissertation
Languageen
FieldPhysics and Astronomy
TopicAstronomy and Astrophysical Research
Canadian institutionsnot available
FundersNatural Sciences and Engineering Research Council of Canada
KeywordsExclosureVegetation (pathology)PrecipitationGloomSnowmeltMicrofauna
DOInot available

Abstract

fetched live from OpenAlex

To accurately model soil temperatures on the Boreal Plain, factors that influence fine-grained
\nsoils during the rapid cooling period must first be identified. The effects of air temperature, soil
\nmoisture and snow depth were quantified at 0.1 and 0.5 m depths for 14 sites encompassing five
\ntreatment types: three upland burned, three upland harvested, three upland conifer, three upland
\ndeciduous and two wetland. In the absence of snow from September to October at the 0.1 m
\ndepth, air temperature was identified as the most important parameter, explaining approximately
\n70% of the variation in soil temperature for upland and wetland sites. At the same depth in the
\npresence of snow from November to December, soil moisture was more important. At a deeper
\nsoil depth (0.5 m), soil moisture was identified as the most important parameter regardless of
\nsnow cover, explaining from 63 to 91% of the variation in soil temperatures for upland and
\nwetland sites. The presence of snow was a significant factor influencing soil temperatures, but
\nsnow depth was not. Further, the soil temperature algorithms of SWAT were tested using one
\nsite of each treatment type at 0.1, 0.5 and 1.0 m depths. The algorithms utilized by SWAT were
\nable to reproduce seasonal trends in soil temperatures adequately for the spring, summer and
\nautumn seasons, with only a slight increase in the lag coefficient parameter. During winter
\nmonths, the SWAT algorithms tended to predict soil temperatures that were consistently lower
\nthan measured data. Further development to the SWAT soil temperature algorithms is required to
\nrepresent better the important insulating effect of snowpack.

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 categoriesMeta-epidemiology (narrow), Science and technology studies
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.640
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0020.000
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0000.002
Insufficient payload (model declined to judge)0.0000.000

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 head0.022
GPT teacher head0.248
Teacher spread0.226 · 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 designTheoretical or conceptual
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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