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Progress in glacier hydrology: a Canadian perspective

2000· article· en· W2073760526 on OpenAlexaffabout
D. Scott Munro

Bibliographic record

VenueHydrological Processes · 2000
Typearticle
Languageen
FieldEarth and Planetary Sciences
TopicCryospheric studies and observations
Canadian institutionsUniversity of Toronto
Fundersnot available
KeywordsGlacierMeltwaterSnowGlacier mass balanceClimate changePrecipitationEnvironmental sciencePhysical geographyHydrology (agriculture)CryosphereCirque glacierClimatologyGeologyGeographyIce streamMeteorologyOceanographySea ice

Abstract

fetched live from OpenAlex

Glacier variations are signals of global change. Current estimates are that ice is being lost from small glaciers of the world at the rate of approximately 130 mm year−1 and that the impact of this alone would be to change sea level upward, by 0·25 mm year−1. The reduction in small glacier ice volume over the past century, which exceed 50% in many areas, are likely to significantly change freshwater resources and wildlife habitat on land. Progress in three areas is crucial to understanding the links between glacier variations and the changes which may occur: (i) the development of a comprehensive mass balance assessment network; (ii) the knowledge of how winter weather determines snow accumulation; and (iii) the processes of surface meltwater production and development of the internal hydrology that links melt to water yield from local streams. Almost 20% of the mass balance records that exceed a 20-year time period come from Canada, but this does not signify the existence of a comprehensive network, particularly in view of the substantial loss of measurement sites that has occurred over the past 20 years. Snow accumulation is still understood mainly in terms of mass balance data that are gathered at the end of winter, but contributions by Canadian scientists to improving precipitation gauge accuracy, and the installation of automatic weather stations at glacier sites, offer the prospect of connecting the daily weather to the accumulation regime. The greatest progress has been made in relating summer ablation to glacier hydrology, such that Canadian scientists, in league with others, are now mapping the surface energy input over glacier surfaces and showing how meltwater generated from the energy passes through the internal hydrological system of the glacier to its snout. Although meltwater hydrology should continue to be a strong area of research, there is a need to bring knowledge about the accumulation regime up to par with that of the ablation regime and to improve the mass balance assessment network. Copyright © 2000 John Wiley & Sons, Ltd.

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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 categoriesInsufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.550
Threshold uncertainty score0.984

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 studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0170.000

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 head0.018
GPT teacher head0.230
Teacher spread0.212 · 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 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

Citations10
Published2000
Admission routes2
Has abstractyes

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