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Hydrologic processes and peak discharge response to forest removal, regrowth, and roads in 10 small experimental basins, Western Cascades, Oregon

Creator:: Jones, J. A.
Abstract:: The magnitude, seasonality, and duration of peak discharge responses to forest removal and regrowth and roads in 10 pairs of experimental basins in the western Cascade Range of Oregon are consistent with fundamental water balance and routing concepts in hydrology. Hypothesized effects of forestry treatments on evapotranspiration, cloud water interception,...
Resource Type:: Article
Full Text:: in 10 pairs of experimental basins in the western Cascade Range of Oregon are consistent with

Peak Flow Responses to Clear-Cutting and Roads in Small and Large Basins, Western Cascades, Oregon

Creator:: Jones, J. A. and Grant, G. E.
Abstract:: This study quantified long-term changes in streamflows associated with clear-cutting and road construction and examined alternative hydrologic mechanisms to explain stream hydrograph changes in the Cascades Range, western Oregon. We examined differences in paired peak discharges for 150 to 375 storm events for five basin pairs, using 34-year records from...
Resource Type:: Article
Full Text:: examined alternative hydrologic mechanisms to explain stream hydrograph changes in the Cascades Range

On the late-time behavior of tracer test breakthrough curves

Creator:: Haggerty, Roy, McKenna, Sean A., and Meigs, Lucy C.
Abstract:: We investigated the late-time (asymptotic) behavior of tracer test breakthrough curves (BTCs) with rate-limited mass transfer( e.g., in dual-porosity or multiporosity systems) and found that the late-time concentration c is given by the simple expression C = tₐ𝒹{C₀g-- [m₀(∂g/∂t)]}, for t >> tₐ𝒹 and tα >> tₐ𝒹, where tad is...
Resource Type:: Article
Full Text:: single-well injection-withdrawal tests at the Waste Isolation Pilot Plant, New Mexico. 1. Introduction

Tree rainfall interception measured by stem compression

Creator:: Friesen, J., van Beek, C., Selker, J., Savenije, H. H. G., and van de Giesen, N.
Abstract:: A method for measuring whole-tree interception of precipitation is presented which employs mechanical displacement sensors to measure trunk compression caused by the water captured by the tree. This direct and nondestructive method is demonstrated to be sensitive to less than 5 kg of interception field tests in Netherlands and Ghana.
Resource Type:: Article
Full Text:: . Savenije,1 and N. van de Giesen1 Received 4 April 2008; revised 15 September 2008; accepted 22 September

Can carbon isotopes be used to predict watershed-scale transpiration?

Creator:: Pypker, T. G., Barnard, H. R., Hauck, M., Sulzman, E. W., Unsworth, Michael H., Mix, Alan C., Kennedy, A. M., and Bond, B. J.
Abstract:: The Penman‐Monteith equation is often used to estimate transpiration, but an important limitation to this approach, especially for mountainous forested sites, is an accurate estimate of canopy conductance averaged over the area of interest (Gs). We propose a method for estimating watershed‐scale transpiration using estimates of Gs derived from measurements...
Resource Type:: Article
Full Text:: carboxylation, the sugars are transported to various parts of the plant, and from the roots to the soil. Cells

Moving beyond heterogeneity and process complexity: A new vision for watershed hydrology

Creator:: McDonnell, J. J., Sivapalan, M., Vache, K., Dunn, S., Grant, G., Haggerty, R., Hinz, C., Hooper, R., Kirchner, J., Roderick, M. L., Selker, J., and Weiler, M.
Abstract:: Field studies in watershed hydrology continue to characterize and catalogue the enormous heterogeneity and complexity of rainfall runoff processes in more and more watersheds, in different hydroclimatic regimes, and at different scales. Nevertheless, the ability to generalize these findings to ungauged regions remains out of reach. In spite of their...
Resource Type:: Article
Full Text:: watershed behavior in different places and across a range of scales. Models based on our current small-scale

A new multisource and high-frequency approach to measuring δ²H and δ¹⁸O in hydrological field studies

Creator:: Pangle, Luke A., Klaus, Julian, Berman, Elena S. F., Gupta, Manish, and McDonnell, Jeffrey J.
Abstract:: Measurements of δ²H and δ¹⁸O in isotope-based field studies have fundamentally improved our understanding of water flow and transport time scales in soils and headwater catchments. Until recently, however, technical constraints have limited the temporal resolution at which water samples could be collected and analyzed. We introduce a new sample...
Resource Type:: Article
Full Text:: the period of analysis. Standard curves that envelop the full range of anticipated isotope

Optimizing conservation practices in watersheds: Do community preferences matter?

Creator:: Piemonti, Adriana D., Babbar-Sebens, Meghna, and Luzar, E. Jane
Abstract:: This paper focuses on investigating (a) how landowner tenure and attitudes of farming communities affect the preference of individual conservation practices in agricultural watersheds, (b) how spatial distribution of landowner tenure affects the spatial optimization of conservation practices on a watershed scale, and (c) how the different attitudes and preferences...
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Full Text:: topography, land use, soil type, and climate are necessary inputs for the development of the model. [22] For

Large wood export regulated by the pattern and intensity of precipitation along a latitudinal gradient in the Japanese archipelago

Creator:: Seo, Jung Il, Nakamura, Futoshi, Akasaka, Takumi, Ichiyanagi, Hidetaka, and Chun, Kun Woo
Abstract:: We examined the relationships between large wood (LW) export and precipitation patterns and intensity by analyzing the data on the annual volume of LW removed from 42 reservoirs and the daily precipitation at or near the reservoir sites. We also calculated the effective precipitation by considering the antecedent precipitation. Both...
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Full Text:: of these watersheds range from 6.2 to 470 km2, with means of 12.1, 54.1, and 227.2 km2 for small

A unified approach for process-based hydrologic modeling: 2. Model implementation and case studies

Creator:: Clark, Martyn P., Nijssen, Bart, Lundquist, Jessica D., Kavetski, Dmitri, Rupp, David E., Woods, Ross A., Freer, Jim E., Gutmann, Ethan D., Wood, Andrew W., Gochis, David J., Rasmussen, Roy M., Tarboton, David G., Mahat, Vinod, Flerchinger, Gerald N., and Marks, Danny G.
Abstract:: This work advances a unified approach to process-based hydrologic modeling, which we term the ‘‘Structure for Unifying Multiple Modeling Alternatives (SUMMA).’’ The modeling framework, introduced in the companion paper, uses a general set of conservation equations with flexibility in the choice of process parameterizations (closure relationships) and spatial architecture. This...
Resource Type:: Article
Full Text:: ) supporting a broad range of biophysical and hydrologic modeling options, enabling analysis of both the

ScholarsArchive@OSU

Hydrologic processes and peak discharge response to forest removal, regrowth, and roads in 10 small experimental basins, Western Cascades, Oregon

Peak Flow Responses to Clear-Cutting and Roads in Small and Large Basins, Western Cascades, Oregon

On the late-time behavior of tracer test breakthrough curves

Tree rainfall interception measured by stem compression

Can carbon isotopes be used to predict watershed-scale transpiration?

Moving beyond heterogeneity and process complexity: A new vision for watershed hydrology

A new multisource and high-frequency approach to measuring δ²H and δ¹⁸O in hydrological field studies

Optimizing conservation practices in watersheds: Do community preferences matter?

Large wood export regulated by the pattern and intensity of precipitation along a latitudinal gradient in the Japanese archipelago

A unified approach for process-based hydrologic modeling: 2. Model implementation and case studies

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