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Full-Text Articles in Engineering
A Long-Term Hydrologically-Based Data Set Of Land Surface Fluxes And States For The Conterminous United States, Edwin P. Maurer, A. W. Wood, J. C. Adam, Dennis P. Lettenmaier, B. Nijssen
A Long-Term Hydrologically-Based Data Set Of Land Surface Fluxes And States For The Conterminous United States, Edwin P. Maurer, A. W. Wood, J. C. Adam, Dennis P. Lettenmaier, B. Nijssen
Civil, Environmental and Sustainable Engineering
A frequently encountered difficulty in assessing model-predicted land–atmosphere exchanges of moisture and energy is the absence of comprehensive observations to which model predictions can be compared at the spatial and temporal resolutions at which the models operate. Various methods have been used to evaluate the land surface schemes in coupled models, including comparisons of model-predicted evapotranspiration with values derived from atmospheric water balances, comparison of model-predicted energy and radiative fluxes with tower measurements during periods of intensive observations, comparison of model-predicted runoff with observed streamflow, and comparison of model predictions of soil moisture with spatial averages of point observations. While …
Long Range Experimental Hydrologic Forecasting For The Eastern U.S., Andrew W. Wood, Edwin P. Maurer, Arun Kumar, Dennis P. Lettenmaier
Long Range Experimental Hydrologic Forecasting For The Eastern U.S., Andrew W. Wood, Edwin P. Maurer, Arun Kumar, Dennis P. Lettenmaier
Civil, Environmental and Sustainable Engineering
We explore a strategy for long-range hydrologic forecasting that uses ensemble climate model forecasts as input to a macroscale hydrologic model to produce runoff and streamflow forecasts at spatial and temporal scales appropriate for water management. Monthly ensemble climate model forecasts produced by the National Centers for Environmental Prediction/Climate Prediction Center global spectral model (GSM) are bias corrected, downscaled to 1/8° horizontal resolution, and disaggregated to a daily time step for input to the Variable Infiltration Capacity hydrologic model. Bias correction is effected by evaluating the GSM ensemble forecast variables as percentiles relative to the GSM model climatology and then …
Detection Of Intensification Of The Global Water Cycle: The Potential Role Of Friend, Alan D. Zeigler, Justin Sheffield, Eric F. Wood, Bart Nijssen, Edwin P. Maurer, Dennis P. Lettenmaier
Detection Of Intensification Of The Global Water Cycle: The Potential Role Of Friend, Alan D. Zeigler, Justin Sheffield, Eric F. Wood, Bart Nijssen, Edwin P. Maurer, Dennis P. Lettenmaier
Civil, Environmental and Sustainable Engineering
Diagnostic studies of 14-year, 2 — 2°, Variable Infiltration Capacity (VIC) model off-line simulations of the global terrestrial water budget suggest that, given the annual variability in the major components of continental hydrological cycles (precipitation, evaporation, and runoff), several decades to perhaps centuries of measurements may be needed to detect with high confidence the intensification predicted by recent global climate model (GCM) studies simulating plausible global warming scenarios. Furthermore, these measurements may need to originate from a wider geographic expanse than is currently investigated within large-scale hydrological assessment programmes, such as the Global Energy and Water Experiment (GEWEX). Smaller, geographically …