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Record W4410289313 · doi:10.1088/2515-7620/add794

Stochastic modelling of temperature for pricing weather derivatives

2025· article· en· W4410289313 on OpenAlexaff
Bernard Gyamfi, Perpetual Andam Boiquaye, Samuel Asante Gyamerah

Bibliographic record

VenueEnvironmental Research Communications · 2025
Typearticle
Languageen
FieldAgricultural and Biological Sciences
TopicAgricultural risk and resilience
Canadian institutionsToronto Metropolitan University
Fundersnot available
KeywordsEnvironmental scienceMeteorologyWeather predictionEconometricsAtmospheric sciencesEconomicsGeologyGeography

Abstract

fetched live from OpenAlex

Abstract We employ the modified Ornstein-Uhlenbeck model with a seasonal mean and stochastic volatility process to model the daily average temperature (DAT) of Bono region in Ghana. The study findings show that the daily average temperature in the Bono region reverts to a temperature of approximately 26° C at a rate of 18.72% with maximum and minimum temperatures of 32.67° C and 19.75° C, respectively. Although the Bono region is in the middle belt of Ghana, it experiences warm temperatures and experiences dry seasons relatively more than wet seasons in the number of years considered in our analysis. The findings from the study are relevant in the pricing of weather derivatives with temperature as the underlying variable in the financial and agricultural sector. Furthermore, it would assist in the development and design of tailored agriculture insurance models by incorporating the dynamics of temperature.

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 categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.816
Threshold uncertainty score0.492

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0010.000
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0000.000
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 head0.079
GPT teacher head0.329
Teacher spread0.250 · 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.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
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

Citations2
Published2025
Admission routes1
Has abstractyes

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