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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z | |
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First Edition Preface Second Edition Preface Acknowledgments
Section A A index 541-549 of 917 terms
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angularity correction—Correction to be made to an observed velocity when the direction of the current is not at right angles to the discharge section line.
anhyetism—(Rare.) The condition of being without rain.
anisotropic—Not isotropic.
anisotropy—Refers to the nonisotropic part of the turbulence spectrum. See isotropic turbulence.
anniversary winds—General terms for local winds or larger-scale wind systems (such as the monsoon, etesians, etc.) that recur annually.
annual cycle—That component of variability that is a function of the day of the year but is independent of the year.
annual exceedance series—In hydrology, a series of local maxima in a data record in which the number of local maxima is equal to the number of years of record. See partial-duration series.
annual flood series—A time series of the largest flood that occurs during every year of the record. See also partial-duration series.
annual flood—The highest flow at a point on a stream during any particular calendar year or water year. Flow may be expressed as maximum instantaneous stage or discharge, or the highest 24-h average. The annual flood need not exceed the established flood stage.
annual maximum series—In hydrology, a series of data consisting of the largest values for each year. See annual flood.
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