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THE EFFECTS OF RECENT CHANGES IN ATMOSPHERIC CIRCULATION ON THE HYDROLOGY OF THE KANKAKEE RIVER 1
Author(s) -
Davis Jerry M.,
Hidore John J.
Publication year - 1980
Publication title -
jawra journal of the american water resources association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.957
H-Index - 105
eISSN - 1752-1688
pISSN - 1093-474X
DOI - 10.1111/j.1752-1688.1980.tb02400.x
Subject(s) - atmospheric circulation , precipitation , surface runoff , trough (economics) , ridge , snow , watershed , environmental science , hydrology (agriculture) , atmosphere (unit) , circulation (fluid dynamics) , climatology , atmospheric sciences , geology , meteorology , geography , geomorphology , ecology , paleontology , physics , geotechnical engineering , macroeconomics , machine learning , computer science , economics , biology , thermodynamics
In North America the four successive winters from 1974‐1975 through 1977–1978 were very different from each other in terms of atmospheric circulation and resulting surface weather conditions. The first year of the sequence there was a near normal circulation pattern. The following years were characterized by the gradual amplification of an upper atmosphere ridge over the West Coast coupled with an eastward displacement of a long‐wave trough east of the Rocky Mountains. These changes in circulation brought below normal temperatures to the Midwest, below normal precipition and increasing snowfall which reached record levels in February 1978. These atmospheric changes brought about changes in the flow of the Kankakee River‐Total runoff in the winter half‐year dropped as precipitation and temperatures dropped; there was a marked retarding of winter runoff and the yield of the watershed increased.