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Browsing by Author "Rupp, David E."

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Browsing by Author "Rupp, David E."

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  • Drainage of a horizontal Boussinesq aquifer with a power law hydraulic conductivity profile 
    Rupp, David E.; Selker, John S. (American Geophysical Union, 2005)
    Solutions to the Boussinesq equation describing drainage into a fully penetrating channel have been used for aquifer characterization. Two analytical solutions exist for early- and late-time drainage from a saturated, ho ...
  • Effect of forecast skill on management of the Oregon coast coho salmon (Oncorhynchus kisutch) fishery 
    Rupp, David E.; Wainwright, Thomas C.; Lawson, Peter W. (NRC Research Press, 2012-06)
    Better fisheries management is often given as one justification for research on improving forecasts of fish survival. However, the value gained from expected improvements in forecast skill in terms of achieving managemen ...
  • An environmentally driven time-integrating water sampler 
    Selker, John S.; Rupp, David E. (American Geophysical Union, 2005)
    Quality concerns drive many water studies and practices, but obtaining samples from water bodies over time and space for quality determination is often difficult and expensive. We present a low-cost approach that allows ...
  • An Image-Based Method for Determining Bulk Density and the Soil Shrinkage Curve 
    Stewart, Ryan D.; Abou Najm, Majdi R.; Rupp, David E.; Selker, John S. (Soil Science Society of America, 2012-07)
    Current laboratory methods for determining volume and bulk density of soil clods include dipping saran-coated clods in water (a destructive process due to the permanent coating), performing physical measurements on sampl ...
  • Marine environment-based forecasting of coho salmon (Oncorhynchus kisutch) adult recruitment 
    Rupp, David E.; Wainwright, Thomas C.; Lawson, Peter W.; Peterson, William T. (Blackwell Publishing Ltd, 2012-01-19)
    Generalized additive models (GAMs) were used to investigate the relationships between annual recruitment of natural coho salmon (Oncorhynchus kisutch) from Oregon coastal rivers and indices of the physical ocean environm ...
  • Measurement Tool for Dynamics of Soil Cracks 
    Stewart, Ryan D.; Abou Najm, Majdi R.; Rupp, David E.; Selker, John S. (Soil Science Society of America, 2012-05)
    Shrinkage cracks in soil function as a dominant control on the partitioning and distribution of moisture fluxes in the vadose zone. Their dynamics influence moisture balance and control water availability for runoff, dee ...
  • On the use of the Boussinesq equation for interpreting recession hydrographs from sloping aquifers 
    Rupp, David E.; Selker, John S. (American Geophysical Union, 2012-12-28)
    The method of recession analysis proposed by Brutsaert and Nieber (1977) remains one of the few analytical tools for estimating aquifer hydraulic parameters at the field scale and beyond. In the method, the recession hyd ...
  • A resonating rainfall and evaporation recorder 
    Stewart, Ryan D.; Hut, Rolf; Rupp, David E.; Gupta, Hoshin; Selker, John S. (American Geophysical Union, 2012-08-14)
    We propose a novel, accurate quantification of precipitation and evaporation, as needed to understand fundamental hydrologic processes. Our system uses a collection vessel placed on top of a slender rod that is securely ...
  • Time scale and intensity dependency in multiplicative cascades for temporal rainfall disaggregation 
    Rupp, David E.; Keim, Richard F.; Ossiander, Mina; Brugnach, Marcela; Selker, John S. (American Geophysical Union, 2009-07-10)
    Multiplicative random cascades (MRCs) can parsimoniously generate highly intermittent patterns similar to those in rainfall. The elemental MRC model parameter is the cascade weight, which determines how rainfall at one s ...

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