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Record W3041947316 · doi:10.48336/y09f-py12

Simulation of hydro-ecological indices in a long-term hydrologic model using downscaled climate data

2020· dissertation· en· W3041947316 on OpenAlexaff
Diana Lakshmi Sankar

Bibliographic record

VenueMemorial University Research Repository (Memorial University) · 2020
Typedissertation
Languageen
FieldEnvironmental Science
TopicHydrology and Watershed Management Studies
Canadian institutionsMemorial University of Newfoundland
Fundersnot available
KeywordsEnvironmental scienceClimate changeHydrology (agriculture)Term (time)Climate modelDownscalingHydrological modellingStream flowClimatologyEcologyGeographyDrainage basinGeology

Abstract

fetched live from OpenAlex

The effects of climate change are likely to have a significant impact on environmental flows, which are often represented by alterations in hydrologic and ecological indices. Changes in ow regimes caused by climate change have implications for river ecology, and projections of future ow regimes must be reliable. In this study, the performance of hydrological models was evaluated with hydro-ecological indices to determine if stream ow characteristics could be reasonably modelled with RCM (Regional Climate Model) driven data. In general, it was found that RCM driven hydrological models could well simulate ecological stream ow characteristics with seasonal or monthly bias correction. However, characteristics that represented the frequency and rate of change of stream ow were not well simulated even with bias correction. RCM data driven models resulted in comparable error to the simulation of ERSS in a regional analysis. This gave confidence to the use of RCM driven data to simulate stream ow characteristics.

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: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.040
Threshold uncertainty score0.080

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.001
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0010.000
Open science0.0010.000
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0020.000

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 head0.060
GPT teacher head0.302
Teacher spread0.242 · 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 designSimulation or modeling
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
Published2020
Admission routes1
Has abstractyes

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