Comparison of land surface scheme simulations with field observations versus atmospheric model output as forcing
| Autor: | Muluneh A. Mekonnen, Matthew K. MacDonald, Bruce Davison, Alain Pietroniro |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
010504 meteorology & atmospheric sciences
Hydrological modelling 0208 environmental biotechnology 02 engineering and technology Forcing (mathematics) Atmospheric model Canadian Land Surface Scheme Numerical weather prediction Snow 01 natural sciences Wind speed 020801 environmental engineering Evapotranspiration Climatology Environmental science 0105 earth and related environmental sciences Water Science and Technology |
| Zdroj: | Hydrological Sciences Journal. 61:2860-2871 |
| ISSN: | 2150-3435 0262-6667 |
| DOI: | 10.1080/02626667.2016.1177185 |
| Popis: | The low density of meteorological stations in parts of Canada necessitates using numerical weather prediction (NWP)/assimilation output for hydrological modelling. In this study, comparisons are made of simulated land surface variables when using field observations versus NWP output as forcing for two well-instrumented sites: the mountainous and forested Marmot Creek Basin (MCRB) in the Canadian Rocky Mountains, and a prairie cropland/grassland site (Kenaston). The Canadian Land Surface Scheme 3.6 (CLASS) was used for modelling. The Global Environmental Multiscale (GEM) model with Canadian Precipitation Analysis (CaPA) was also used as forcing. There was good agreement between observed meteorology and GEM/CaPA, though some deficiencies in GEM/CaPA were identified: the effects of sub-grid topography on incoming radiation and wind speed were not accounted for at MCRB, and CaPA did not capture some convective rainfall events at Kenaston. CLASS simulations using both sets of forcing showed difficultie... |
| Databáze: | OpenAIRE |
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