TY - JOUR
T1 - Investigating event-based temporal patterns of design rainfall in a tropical region
AU - Jun, Changhyun
AU - Qin, Xiaosheng
AU - Chen, Mengzhu
AU - Seo, Hyungjoon
N1 - Publisher Copyright:
© 2021 IAHS.
PY - 2021
Y1 - 2021
N2 - This study investigated the temporal rainfall pattern in order to facilitate rainfall design, which normally requires a good understanding of the temporal patterns of rainstorm events. The analysis employed a storm-event-based approach using the concept of inter-event time definition (IETD) and rainfall depth/duration/intensity thresholds. The 5-min rainfall data at three raingauge stations were analysed to determine representative quartiles of a design storm in a tropical city. The temporal characteristics of the design storm could be determined from the rainfall depth ratios of consecutive peak rainfalls for each interval of storm duration, and time to the first peak rainfall depending on each quartile’s rainstorm events. The determination of the quantile distribution of tropical rainfall could help improve the representativeness of design rainfall and facilitate rainfall–runoff modelling for urban flood control in a tropical region.
AB - This study investigated the temporal rainfall pattern in order to facilitate rainfall design, which normally requires a good understanding of the temporal patterns of rainstorm events. The analysis employed a storm-event-based approach using the concept of inter-event time definition (IETD) and rainfall depth/duration/intensity thresholds. The 5-min rainfall data at three raingauge stations were analysed to determine representative quartiles of a design storm in a tropical city. The temporal characteristics of the design storm could be determined from the rainfall depth ratios of consecutive peak rainfalls for each interval of storm duration, and time to the first peak rainfall depending on each quartile’s rainstorm events. The determination of the quantile distribution of tropical rainfall could help improve the representativeness of design rainfall and facilitate rainfall–runoff modelling for urban flood control in a tropical region.
KW - design storm hyetograph
KW - peak rainfall
KW - temporal pattern of rainfall
KW - tropical region
KW - urban stormwater infrastructures
UR - http://www.scopus.com/inward/record.url?scp=85115817512&partnerID=8YFLogxK
U2 - 10.1080/02626667.2021.1967958
DO - 10.1080/02626667.2021.1967958
M3 - Comment/debate
AN - SCOPUS:85115817512
SN - 0262-6667
VL - 66
SP - 1986
EP - 1996
JO - Hydrological Sciences Journal
JF - Hydrological Sciences Journal
IS - 13
ER -
