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Record W2750078372 · doi:10.1002/2017ms000934

Process‐based<scp>TRIPLEX‐GHG</scp>model for simulating<scp>N</scp><sub>2</sub><scp>O</scp>emissions from global forests and grasslands:<scp>M</scp>odel development and evaluation

2017· article· en· W2750078372 on OpenAlex
Kerou Zhang, Changhui Peng, Meng Wang, Xiaolu Zhou, Mingxu Li, Kefeng Wang, Juhua Ding, Qiuan Zhu

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueJournal of Advances in Modeling Earth Systems · 2017
Typearticle
Languageen
FieldEnvironmental Science
TopicSoil and Water Nutrient Dynamics
Canadian institutionsUniversité du Québec à Montréal
FundersNational Key Research and Development Program of ChinaNational Natural Science Foundation of China
KeywordsEnvironmental scienceAtmospheric sciencesNitrous oxideNitrificationGrasslandGreenhouse gasPrimary productionSnowmeltTemperate forestTemperate climateEcosystemSnowEcologyNitrogenChemistryMeteorologyBiologyGeography

Abstract

fetched live from OpenAlex

Abstract The development of the new process‐based TRIPLEX‐GHG model derives from the Integrated Biosphere Simulator (IBIS), which couples nitrification and denitrification processes to quantify nitrous oxide (N 2 O) emissions from natural forests and grasslands. Sensitivity analysis indicates that the nitrification rate coefficient (COE NR ) is the most sensitive parameter to simulate N 2 O emissions. Accordingly, we calibrated this parameter using data from 29 global forest sites (across different latitudes) and grassland sites. The average nitrification rate coefficient gradually increases in the order of tropical forest to grassland to temperate forest to boreal forest, and giving means of 0.009, 0.03, 0.04, and 0.09, respectively. This study validated the mean value for each ecosystem at 52 sites globally. Calibration results both indicate the good performance of the model and its suitability in capturing seasonal variation and magnitude of N 2 O flux; however, it is limited in modeling N 2 O uptake and increments during periods of snowmelt. Additionally, validation results indicate that simulated and observed annual or seasonal N 2 O fluxes are highly correlated (R 2 = 0.75; P &lt; 0.01). Consequently, our results suggest that the model is suitable in simulating N 2 O emissions from different forest and grassland land types under varying environmental conditions on a global scale.

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.

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)0.002
metaresearch head score (Gemma)0.003
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow)
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 score0.225
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0020.003
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.000
Science and technology studies0.0010.000
Scholarly communication0.0010.002
Open science0.0010.000
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 head0.028
GPT teacher head0.296
Teacher spread0.268 · 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