Showing papers by "Marios Sophocleous published in 2000"
TL;DR: A synthesis of water sustainability issues from the hydrologic perspective is presented in this article, which shows that safe yield is a flawed concept and that sustainability is an idea that is broadly used but perhaps not well understood.
383 citations
TL;DR: The case is made for an intermediate complexity, quasi-distributed, comprehensive, large-watershed model, which falls between the fully distributed, physically based hydrological modeling system of the type of the SHE model and the lumped, conceptual rainfall-runoff modelingSystem of thetype of the Stanford watershed model.
233 citations
TL;DR: In this article, the authors present the results of a comprehensive modeling study of surface and groundwater systems, including stream-aquifer interactions, for the Wet Walnut Creek Watershed in west-central Kansas.
66 citations
TL;DR: In this paper, safe-yield policies were revised to take into account natural groundwater discharge in the form of streambaseflow, but these policies, although a step in the right direction, are deficient in several ways.
Abstract: The management of groundwater resources in Kansas continues to evolve. Declines in theHigh Plains aquifer led to the establishment of groundwater management districts in themid-1970s and reduced streamflows prompted the enactment of minimum desirable streamflowstandards in the mid-1980s. Nonetheless, groundwater levels and streamflows continued todecline, although at reduced rates compared to premid-1980s rates. As a result, “safe-yield”policies were revised to take into account natural groundwater discharge in the form of streambaseflow. These policies, although a step in the right direction, are deficient in several ways.In addition to the need for more accurate recharge data, pumping-induced streamflow depletion,natural stream losses, and groundwater evapotranspiration need to be accounted for in therevised safe-yield policies. Furthermore, the choice of the 90% flow-duration statistic as ameasure of baseflow needs to be reevaluated, as it significantly underestimates mean baseflowestimated from baseflow separation computer programs; moreover, baseflow estimation needsto be refined and validated.
21 citations