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Record W4386617341 · doi:10.1088/1748-9326/acf871

Likely impacts of the 2022 heatwave on India’s wheat production

2023· article· en· W4386617341 on OpenAlexaff
Balsher Singh Sidhu

Bibliographic record

VenueEnvironmental Research Letters · 2023
Typearticle
Languageen
FieldAgricultural and Biological Sciences
TopicClimate change impacts on agriculture
Canadian institutionsUniversity of British Columbia
Fundersnot available
KeywordsYield (engineering)CropProduction (economics)Crop productionAgronomyEnvironmental scienceGrowing seasonWinter wheatClimate changeCrop yieldGeographyAgricultural economicsAgricultureBiologyEcologyEconomics

Abstract

fetched live from OpenAlex

Abstract The 2022 Indian heatwave impacted key geographies of wheat production in northwestern and central India. It coincided with this crop’s harvest season in the region, and is expected to have considerably reduced national wheat production. Here we provide spatially disaggregated estimates of the likely impact on wheat yield using statistical relationships derived from historical climate and wheat yield data. Compared to a normal year (median of 1992–2021 climate), national wheat production in 2022 is expected to have fallen by 4.5%; some regions may have experienced wheat yield losses of up to 15%. Our analysis can also be analyzed as a proof of concept for using current and forecasted weather data to estimate real-time impact of short-term weather variability on end-of-season crop yields, even while the crop season is ongoing.

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)0.001
metaresearch head score (Gemma)0.001
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 score0.038
Threshold uncertainty score0.075

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0010.001
Open science0.0000.001
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0030.000

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 head0.059
GPT teacher head0.290
Teacher spread0.230 · 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

Citations19
Published2023
Admission routes1
Has abstractyes

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