Multivariate Technique for Baseflow Separation Using Water Quality Data
Publication: Journal of Hydrologic Engineering
Volume 5, Issue 2
Abstract
A procedure for baseflow separation was developed. The uniqueness of the procedure is that it uses water quantity (flow rate) as well as the quality (NO3, total Kjeldahl nitrogen and total suspended solids) data for baseflow separation. Cluster analysis (CA), a multivariate statistical procedure, was used to group the water quality samples on the storm hydrograph to identify the end point of the baseflow separation line. The proposed procedure was applied to 30 storms in two watersheds, located in the Coastal Plain and Piedmont regions of Virginia, with different hydrologic characteristics. In addition to being a more physically based approach, the CA method also provided consistently better baseflow estimates, compared to two traditional approaches. One of the unique features of the CA method was that it conformed to the premise that baseflow increases after a storm event. For improving the performance of the CA method, regular time interval sampling and inclusion of additional water quality variables (e.g., Ca++ and are suggested.
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References
1.
Alley, W. M. (1993). Regional ground-water quality. Van Nostrand Reinhold, New York.
2.
Appleby, V. C. (1970). “Recession and the base flow problem.” Water Resour. Res., 6(5), 1398–1403.
3.
Black, P. E. (1991). Watershed hydrology. Prentice-Hall, Englewood Cliffs, N.J.
4.
Brooks, K. N., Ffolliott, P. F., Gregersen, H. M., and DeBano, L. F. (1997). Hydrology and the management of watersheds. Iowa State University Press, Ames, Iowa.
5.
Daniel, W. W. (1990). Applied nonparametric statistics, 2nd Ed., PWS/KENT Publishing Co., Boston.
6.
Davis, J. C. (1986). Statistics and data analysis in geology, 2nd Ed., Wiley, New York.
7.
Friedman, M. (1940). “A comparison of alternative tests of significance for the problem of m rankings.” Ann. of Math. Statistics, 11, 86–92.
8.
Hallberg, G. R. ( 1987). “Nitrates in groundwater in Iowa.” Rural groundwater contamination, F. M. D'itri and L. J. Wolfson, eds., Lewis Publishing, Chelsea, Mich., 23–68.
9.
Hewlett, J. D., and Hibbert, A. R. (1967). “Factors affecting the response of small watershed to precipitation in humid areas.” Proc., Int. Symp. on Forest Hydro., W. E. Sopper and H. W. Lull, eds., 275.
10.
Hollander, M., and Wolfe, D. A. ( 1973). Nonparametric statistical methods. Wiley, New York, 120–123.
11.
Linsley, R. K., Kohler, M. A., and Paulhus, J. L. (1975). Hydrology for engineers, 2nd Ed., McGraw-Hill, New York.
12.
McCuen, R. H. (1989). Hydrologic analysis and design. Prentice-Hall, Englewood Cliffs, N.J.
13.
Mather, P. M. (1976). Computational methods of multivariate analysis in physical geography. Wiley, New York.
14.
Mostaghimi, S., et al. (1989a). “Watershed/water quality monitoring for evaluating BMP effectiveness—Nomini Creek watershed.” Proj. Rep., Rep. No. N-P1-8906, Dept. of Conservation and Recreation, Div. of Soil and Water Conservation, Richmond, Va.
15.
Mostaghimi, S., et al. (1989b). “Watershed/water quality monitoring for evaluating animal waste BMP effectiveness—Owl Run watershed.” Proj. Rep. No. O-P1-8906, Dept. of Conservation and Recreation, Div. of Soil and Water Conservation, Richmond, Va.
16.
Nathan, R. J., and McMahon, T. A. (1990). “Evaluation of automated techniques for base flow and recession analyses.” Water Resour. Res., 26(7), 1465–1473.
17.
National Research Council. (1993). Soil and water quality: An agenda for agriculture. National Academy Press, Washington, D.C.
18.
Novotny, V., and Olem, H. (1994). Water quality: Prevention, identification, and management of diffuse pollution. Van Nostrand Reinhold, New York.
19.
User's manual, version 11. (1997). Minitab, Inc., State College, Pa.
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Received: Oct 22, 1998
Published online: Apr 1, 2000
Published in print: Apr 2000
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