Investigation of trend in hydrological time series of the Evinos River basin

This paper presents an investigation of trend in historic hydrological time series of areal annual precipitation on and mean annual runoff from the basin of the Evinos River in western Greece. Using different tests for randomness, a statistically significant long lasting decreasing trend was found i...

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Bibliographic Details
Published in:Hydrological sciences journal 1997-02, Vol.42 (1), p.81-88
Main Authors: GIAKOUMAKIS, S. G., BALOUTSOS, G.
Format: Article
Language:English
Subjects:
Annual precipitation
Basins
Earth sciences
Earth, ocean, space
Exact sciences and technology
Fluctuation
Freshwater
Greece
Hydrology
Hydrology. Hydrogeology
Magnification
Precipitation
Q1
Randomness
River basins
Rivers
Runoff
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Summary:This paper presents an investigation of trend in historic hydrological time series of areal annual precipitation on and mean annual runoff from the basin of the Evinos River in western Greece. Using different tests for randomness, a statistically significant long lasting decreasing trend was found in the precipitation record, whereas an also significant fluctuating "local" trend was detected in the runoff record. Further, it is shown that the effects of precipitation change on mean annual runoff can be quantified through a magnification factor.
ISSN:0262-6667
2150-3435
DOI:10.1080/02626669709492007