Representing Spatial Subgrid-Scale Precipitation Variability in a GCM
نویسندگان
چکیده
منابع مشابه
Toward a Robust Canopy Hydrology Scheme with Precipitation Subgrid Variability
Representation of the canopy hydrological processes has been challenging in land surface modeling due to the subgrid heterogeneity in both precipitation and surface characteristics. The Shuttleworth dynamic– statistical method is widely used to represent the impact of the precipitation subgrid variability on canopy hydrological processes but shows unwanted sensitivity to temporal resolution whe...
متن کاملObservational validation of an extended mosaic technique for capturing subgrid scale heterogeneity in a GCM
A technique called extended mosaic (EM) was designed to allow the subgrid scale interactions between the land surface and the atmosphere to extend vertically. EM addresses a limitation of previously existing techniques, and has been shown to have an important impact on the simulated climate in global models. The present work focuses on an observational validation of the climate characteristics ...
متن کاملSpatial variability of precipitation for hydrological modelling
Effects of spatial variability of precipitation for process-orientated hydrological modelling: results from two nested catchments D. Tetzlaff and U. Uhlenbrook Department of Geography and Environment, University of Aberdeen, Aberdeen AB24 3UF, Scotland, United Kingdom Institute of Hydrology, University of Freiburg, Fahnenbergplatz, 79098 Freiburg, Germany Received: 14 December 2004 – Accepted: ...
متن کاملA velocity-estimation subgrid model constrained by subgrid scale dissipation
Purely dissipative eddy–viscosity subgrid models have proven very successful in large–eddy simulations (LES) at moderate resolution. Simulations at coarse resolutions where the underlying assumption of small–scale universality is not valid, warrant more advanced models. However, non-eddy viscosity models are often unstable due to the lack of sufficient dissipation. This paper proposes a simple ...
متن کاملGCM precipitation for improved hydrologic simulation
Papers published in Hydrology and Earth System Sciences Discussions are under open-access review for the journal Hydrology and Earth System Sciences Abstract Global Climate Models (GCMs) precipitation scenarios are often characterized by biases and coarse resolution that limit their direct application for basin level hydrological modeling. Bias-correction and spatial disaggregation methods are ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Hydrometeorology
سال: 2003
ISSN: 1525-755X,1525-7541
DOI: 10.1175/1525-7541(2003)004<0891:rsspvi>2.0.co;2