MétaCan
Menu
Back to cohort
Record W1975210662 · doi:10.2136/sssaj2004.1526

Preferential Flow Revealed by Hydrologic Modeling Based on Predicted Hydraulic Properties

2004· article· en· W1975210662 on OpenAlexaff
Frédéric Gérard, M. Tinsley, K. Ulrich Mayer

Bibliographic record

VenueSoil Science Society of America Journal · 2004
Typearticle
Languageen
FieldEngineering
TopicSoil and Unsaturated Flow
Canadian institutionsUniversity of British Columbia
Fundersnot available
KeywordsMacroporePedotransfer functionHydraulic conductivitySoil scienceWater contentRichards equationEnvironmental scienceWater retention curveFlow (mathematics)Water tableWater flowSoil waterHydrology (agriculture)GeologyGeotechnical engineeringMathematicsGroundwaterChemistryGeometry

Abstract

fetched live from OpenAlex

Pedotransfer functions have shown a reasonable reliability and accuracy for predicting soil hydraulic properties. However, the contribution of the range of macroscopic features leading to preferential water flow is not readily taken into account. We modified and used the hydrological component of the reactive transport model MIN3P and the neural network‐based code ROSETTA in an attempt to simulate 4 yr of daily measurements of the soil water content in a forest soil covered by Douglas‐fir ( Pseudotsuga menziessii Franco). A good fit of the mean measured water contents was obtained during periods of low soil moisture, while the model tended to overpredict water contents during periods of high soil moisture. This behavior is typical for the presence of significant preferential flow. Slightly better results were obtained by using predicted values of the saturated hydraulic conductivity, while the assumption of a water table located at shallow depth increased discrepancies. A good match was obtained by calibration of a simple preferential flow scheme, which was based on the assumption that the retention properties of the porous network control preferential flow. Accordingly, preferential flow seemed to initiate within the capillary pore domain. This causes a much greater sensitivity of the results to the position of the water table than with other schemes that consider pure gravity‐driven flow in large macropores. Knowledge of the functional pore size is needed to ascertain the type of preferential flow scheme to be used.

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: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.057
Threshold uncertainty score0.656

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.001
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.001
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 head0.012
GPT teacher head0.198
Teacher spread0.186 · 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 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

Citations29
Published2004
Admission routes1
Has abstractyes

Explore more

Same venueSoil Science Society of America JournalSame topicSoil and Unsaturated FlowFrench-language works237,207