Journal of Environmental Hydrology
ISSN 1058-3912
Electronic journal of the International Association
for Environmental Hydrology
On the World Wide Web at http://www.hydroweb.com
JEH Volume 9 (2001), Paper 8, March 2001
Posted March 9, 2001
LOW FLOW FREQUENCY ANALYSIS OF THE NILÜFER RIVER
AT THE GEÇITKÖY STATION, TURKEY
Aysegül Iyilikçi Pala
Ertugrul Benzeden
Dokuz Eylül University of Engineering, Dept. of Environmental
Engineering, Izmir, Turkey
ABSTRACT
Frequency analysis of low flows (critical drought flows) is the
first step in surface water
pollution control. In this study, a Type-3 Extremal (or Weibull)
Distribution with a lower limit
is applied to 7-day moving average minimum flows of the Nilüfer
River at the Geçitköy station.
For the Geçitköy low flows, it is shown that reliable
and physically meaningful estimates of
parameters should be obtained using estimation procedures satisfying
these restrictions. A
lower flow limit, X0 =0.20 m3/sec, obtained
by the method of iterative least squares, is a reliable
and physically meaningful lower limit for the probability distribution
of 7-day average
minimum flows at Geçitköy.
Reference: Pala, A.I. and E. Benzeden; Low Flow Frequency
Analysis of the Nilüfer River at the Geçitköy Station,
Turkey, Journal of Environmental Hydrology, Vol. 9, Paper 8, March
2001.
CONTACT:
Aysegül Pala
Dokuz Eylül University of Engineering
Dept. of Environmental Engineering
Kaynaklar Campus
35160 Buca / Ýzmir
Turkey
Email: aysegul.pala@deu.edu.tr
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