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Relation between rainfall duration and diurnal variation in the warm season precipitation over central eastern China
Author(s) -
Yu Rucong,
Xu Youping,
Zhou Tianjun,
Li Jian
Publication year - 2007
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2007gl030315
Subject(s) - diurnal temperature variation , precipitation , climatology , morning , environmental science , rain gauge , china , duration (music) , atmospheric sciences , geography , meteorology , geology , medicine , art , literature , archaeology
Using hourly station rain‐gauge data during 1991–2004, we studied the relation between rainfall duration and diurnal variation during the warm season (May to September) over the central eastern China (105–120°E, 26–36°N). Our result shows that more than 60% of the total rainfall in the central eastern China comes from long‐duration rainfall events (an event that lasts longer than 6 hours). The long‐duration rainfall events tend to have their maximum hourly rainfall around early morning, while short‐duration rainfall events (an event of 1–3 hours in duration) have their peak rainfall around late afternoon. This contrast explains the two peaks in the diurnal variation of averaged precipitation over the central eastern China shown in previous studies.