Last Updated
：2025/11/27
water year
Noun
Japanese Meaning
水文年度 - 気象・水文観点から定められる1年間の期間。通常、10月1日から翌年の9月30日まで。 / 水年 - 降水量や雪からの融雪による集積の影響を考慮した年度。
（ plural ）
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(hydrology) The timespan between October 1 and September 30 of the next year, differing from the calendar year because part of the precipitation that falls in late autumn and winter accumulates as snow and does not drain until the following spring or summer.
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water year
During a dry water year, reservoir levels can fall to critically low levels, forcing stringent water-use restrictions.
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During a dry water year, reservoir levels can fall to critically low levels, forcing stringent water-use restrictions.
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