Thirty-Five Year (1971-2005) Simulation of Daily Soil Moisture Using the Variable Infiltration Capacity Model over China
Bibliographic record
Abstract
We use the Variable Infiltration Capacity (VIC) land surface macroscale hydrology model driven by observed maximum and minimum air temperatures and precipitation to map daily soil moisture values over China for the period 1 January 1971 to 31 July 2005.The model is applied over a grid of 10 458 points with a resolution of 30 km 30 km.The model is first calibrated using observed hydrographs from 35 catchments with drainage areas varying from 190 to 351 530 km 2 .The model is then validated over these 35 catchments at different periods, and over an additional eight catchments with drainage areas ranging from 1230 to 10 010 km 2 .An estimation procedure to determine model parameters is developed and applied to catchments where hydrographs are not available for the standard calibration process.In situ soil moisture measurements from 28 sites around the country are also used for model validation.VIC performs well over both calibration and validation catchments especially in humid and semi-humid regions.The 35-year soil moisture climatology for the top 1 m from VIC is consistent with known soil moisture conditions in China. RSUM [Traduit par la rdaction] Nous utilisons le modle hydrologique macroscopique de surface capacit d'infiltration variable (VIC) pilot par les tempratures maximales et minimales de l'air et les prcipitations observes pour cartographier les valeurs quotidiennes d'humidit du sol enChine durant la priode allant du 1 er janvier 1971 au 31 juillet 2005.Le modle est appliqu sur une grille de 10 458 points dont la rsolution est de 30 km 30 km.Le modle est d'abord talonn l'aide d'hydrogrammes observs provenant de 35 bassins hydrologiques dont l'aire de drainage varie entre 190 et 351 530 km 2 .Le modle est ensuite valid ces 35 bassins hydrologiques pour diffrentes priodes ainsi qu' huit autres bassins hydrologiques dont l'aire varie entre 1 230 et 10 010 km 2 .Nous dfinissions une mthode d'estimation permettant de dterminer les paramtres du modle et nous l'appliquons aux bassins hydrologiques pour lesquels nous ne disposons pas d'hydrogrammes pour le processus d'talonnage de rfrence.Nous utilisons aussi des mesures d'humidit du sol faites sur place 28 sites dans le pays pour la validation du modle.Le modle VIC donne de bons rsultats tant dans les bassins hydrologiques d'talonnage que de validation, en particulier dans les rgions humides et semi-humides.La climatologie de 35 ans de l'humidit du sol dans le premier mtre fournie par le modle VIC est compatible avec les conditions connues d'humidit du sol en Chine.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
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".