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ANNUAL, SEASONAL, AND MONTHLY CHANGES IN RUNOFF IN THE UNITED STATES 1
Author(s) -
Hidore John J.
Publication year - 1971
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.1752-1688.1971.tb05788.x
Subject(s) - streams , surface runoff , period (music) , environmental science , trend analysis , hydrology (agriculture) , seasonality , physical geography , geography , climatology , geology , statistics , ecology , mathematics , computer network , physics , geotechnical engineering , computer science , acoustics , biology
The runoff from a series of watersheds in the United States is examined to determine if there are distinct trends present. The data are examined for the period 1931‐1960 and the results compared with those obtained for the period from the beginning of record to 1960. A larger sample of streams with records of various lengths is also utilized. The data used are annual, seasonal, and monthly values. The streams are grouped geographically to determine if regional patterns exist. The runoff increased on the majority of streams for the period 1931‐1960, but for the period from the beginning of record to 1960 most streams exhibited a negative trend. When geographical distribution is considered, the streams located in the interior of the continent show greater similarity of trend than do those on the continental margins.