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Table of Contents
Volume 14, No. 2-3, September 1998
A Limnological Analysis of Cannonsville Reservoir, NY
Effler, S.W. and A.P. Bader, pp. 125-139.
Hydrologic Analysis and Model Development for Cannonsville Reservoir
Owens, E.M., R.K. Gelda, S.W. Effler and J.M. Hassett, pp. 140-151.
Thermal and Heat Transfer Characteristics of Cannonsville Reservoir
Owens, E.M., pp. 152-161.
Identification and Analysis of Hydrodynamic and Transport Characteristics of Cannonsville Reservoir
Owens, E.M., pp. 162-171.
Development and Testing of One-Dimensional Hydrothermal Models of Cannonsville Reservoir
Owens, E.M., pp. 172-185.
Calibration, Verification, and an Application of a Two-Dimensional Hydrothermal Model [CE-QUAL-W2(t)] for Cannonsville Reservoir
Gelda, R.K., E.M. Owens and S.W. Effler, pp. 186-196.
Analysis of Material Loading to Cannonsville Reservoir: Advantages of Event-Based Sampling
Longabucco, P. and M. Rafferty, pp. 197-212.
Gradients and Dynamics in Downward Flux and Settling Velocity in Cannonsville Reservoir
Effler, S.W. and C.M. Brooks, pp. 213-224.
Sediment Resuspension in Cannonsville Reservoir
Effler, S.W., R.K. Gelda, D.L. Johnson and E.M. Owens, pp. 225-237.
The Optical Water Quality of Cannonsville Reservoir: Spatial and Temporal Patterns, and the Relative Roles of Phytoplankton and Inorganic Tripton
Effler, S.W., M.G. Perkins and D.L. Johnson, pp. 238-253.
Turbidity and Particle Signatures Imparted by Runoff Events in Ashokan Reservoir, NY
Effler, S.W., M.G. Perkins, N. Ohrazda, C.M. Brooks, B.A. Wagner, D.L. Johnson, F. Peng and A. Bennett, pp. 254-265.
Chemical Exchange at the Sediment Water Interface of Cannonsville Reservoir
Erickson, M.J. and M.T. Auer, pp. 266-277.
Phosphorus Bioavailability and P-Cycling in Cannonsville Reservoir
Auer, M.T., K.A. Tomasoski, M.J. Babiera, M.L. Needham, S.W. Effler, E.M. Owens and J.M. Hansen, pp. 278-289.
Development and Parameterization of a Kinetic Framework for Modeling Light- and Phosphorus-Limited Phytoplankton Growth in Cannonsville Reservoir
Auer, M.T. and B.E. Forrer, pp. 290-300.
Development and Testing of a Nutrient-Phytoplankton Model for Cannonsville Reservoir
Doerr, S.M., E.M. Owens, R.K. Gelda, M.T. Auer and S.W. Effler, pp. 301-321.
A Strategy for Reservoir Model Forecasting Based on Historic Meteorological Conditions
Owens, E.M., S.W. Effler, S.M. Doerr, R.K. Gelda, E.M. Schneiderman, D.G. Lounsbury and C.L. Stepczuk, pp. 322-331.
Characteristics and Origins of Metalimnetic Dissolved Oxygen Minima in a Eutrophic Reservoir
Effler, S.W., R.K. Gelda, M.G. Perkins, D.A. Matthews, E.M. Owens, C.L. Stepczuk and A. Bader, pp. 332-343.
Allochthonous Contributions of THM Precursors in a Eutrophic Reservoir
Stepczuk, C.L., A.B. Martin, P. Longabucco, J.A. Bloomfield and S.W. Effler, pp. 344-355.
Spatial and Temporal Patterns of THM Precursors in a Eutrophic Reservoir
Stepczuk, C.L., A.B. Martin, S.W. Effler, J.A. Bloomfield and M.T. Auer, pp. 356-366.
A Modeling Analysis of THM Precursors for a Eutrophic Reservoir
Stepczuk, C.L., E.M. Owens, S.W. Effler, J.A. Bloomfield and M.T. Auer, pp. 367-378.
Sources and Fate of Giardia Cysts and Cryptosporidium Oocysts in Surface Waters
Bagley, S.T., M.T. Auer, D.A. Stern and M.J. Babiera, pp. 379-392.
A Framework for Modeling the Fate and Transport of Giardia and Cryptosporidium in Surface Waters
Auer, M.T., S.T. Bagley, D.A. Stern and M.J. Babiera, pp. 393-400.
Preface
These two issues of the journal have been devoted to scientific studies and related modeling efforts of Cannonsville Reservoir. This water supply and flow augmentation reservoir, constructed in the mid-1960s, is located about 200 km north-west of New York City (NYC), in upstate New York. It is the third largest (373 x 106 m3 capacity), and one of the most eutrophic, of 19 water supply source reservoirs operated by the New York City Department of Environmental Protection (NYCDEP). Cannonsville Reservoir receives nonpoint inputs associated with agricultural activities, as well as point source inputs. This is one of the 8 reservoirs which comprise the NYC Catskill/ Delaware Water Supply System. The United States Environmental Protection Agency granted the City conditional filtration avoidance status for its Catskill/Delaware System in May 1997. This filtration waiver will be reviewed in the year 2002.
In order to better manage these reservoirs, meet filtration avoidance requirements, and continue to provide safe and high quality drinking water to 9 million users, NYCDEP initiated and sponsored an interdisciplinary program of studies to support the development of models to guide the management of these systems. This program was started on Cannonsville Reservoir because of its established water quality problems. The findings from the Cannonsville process and modeling studies are particularly important because they will allow for the establishment of technically supportable water quality nutrient criteria. The setting of such criteria is a critical first step in both the formulation and implementation of nutrient management strategies within the Cannonsville Reservoir watershed. An integrated approach has been adopted to support the development of models that incorporates a balance of: (1) long-term monitoring of in-reservoir, meteorological and watershed conditions (by NYCDEP), (2) more intensive short-term measurements to support identification of important processes and testing of models, (3) in situ and laboratory process studies to independently determine model coefficients, and (4) calibration, verification and application of mechanistic models. Related manuscripts in these two issues document contributions in the area of basic limnological analysis, hydrologic and heat budgets, hydrodynamic/transport processes, hydrothermal modeling, tributary material loading, deposition and resuspension of particulate constituents, optics, sediment-water exchange, bioavailability of phosphorus fractions, phytoplankton kinetics, nutrient-phytoplankton modeling, modeling of precursors of disinfection by-products, and strategies for management applications of these models. The program for Cannonsville Reservoir has served as a template for similar studies now underway for other NYC reservoirs.
These issues of the journal would not have been possible without the collaborative efforts of a research consortium, led by the Upstate Freshwater Institute of Syracuse, NY, NYCDEP's Division of Drinking Water Quality Control (DWQC), Valhalla, NY, the Village of Delhi, NY, and the editorial staff of Lake and Reservoir Management and the journal's peer-reviewers. Members of DWQC's limnology, hydrology, and modeling groups made invaluable contributions throughout all phases of these studies. Without exception, the authors found the reviews of these manuscripts to be rigorous, fair, and constructive. These inputs improved the quality of all the manuscripts. The authors especially thank the editor, James LaBounty, for his hard work, energy, and enthusiasm in this project.
Michael A. Principe, Ph.D.
Director, Division of Water Quality Control
NY City Department of Environmental Protection
Valhalla, New York 10595
Carol Stepczuk, Ph.D.
Cannonsville Reservoir Modeling Project Manager
New York City Department of Environmental Protection
Valhalla, NY 10595
Steven W. Effler, Ph.D.
Director of Research
Upstate Freshwater Institute
Syracuse, New York 13214
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