Skip to Main Content
The application of depletion curves for parameterization of subgrid variability of snowAuthor(s): C. H. Luce; D. G. Tarboton
Source: Hydrological processes. 18(8): 1409-1422
Publication Series: Miscellaneous Publication
PDF: View PDF (363 KB)
DescriptionParameterization of subgrid-scale variability in snow accumulation and melt is important for improvements in distributed snowmelt modelling. We have taken the approach of using depletion curves that relate fractional snowcovered area to element-average snow water equivalent to parameterize the effect of snowpack heterogeneity within a physically based mass and energy balance snowpack model. Comparisons of parameterization outputs with distributed model outputs and observations show performance comparable to the distributed model and reasonable performance relative to observations for time series modelling of snow water equivalent and snow-covered area. Examination of the relationship between the shapes of the depletion curves and parametric distributions shows that the shapes of dimensionless depletion curves depend primarily on the coefficient of variation and to a lesser extent on the shape of the snow distribution function. The methods presented here are a generalization of several previously used methods to estimate depletion curve shapes. Comparison of several years of observed depletion curves from the study basin show that the shapes of the depletion curves change little from year to year.
- You may send email to email@example.com to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationLuce, C. H., Tarboton, D. G. 2004. The application of depletion curves for parameterization of subgrid variability of snow. Hydrological processes. 18(8): 1409-1422
Keywordsdistributed snow models, subgrid variability, scale, snow-cover patterns, snow water equivalent
- Improvement of distributed snowmelt energy balance modeling with MODIS-based NDSI-derived fractional snow-covered area data
- Evaluation of forest snow processes models (SnowMKIP2)
- Mesocell study area snow distributions for the Cold Land Processes Experiment (CLPX)
XML: View XML