IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2015  > Vol12 No.3
Impact of Rainfall Temporal Heterogeneity on Relationship between Curve Number and Rainfall Depth in the Zagros Mountain Region, Iran
Hassan REZAEI-SADR
Corresponding AuthorHassan REZAEI-SADR
2015-05
Source PublicationJournal of Mountain Science
ISSN1672-6316
Volume12Issue:3Pages:689-698
Subtype期刊论文
AbstractThe impact of temporal variation of rainfall on the relationship between rainfall and catchment response is investigated in a catchment with high temporally variable rainfalls and a high percentage of permeable soils in the southwest of Iran. Twenty-nine storm events are classified into two classes, High Temporal heterogeneous (HT) and Low Temporal heterogeneous (LT) events using the variogram technique and the storm events of each class are analyzed to detect the relationship between Curve Number (CN) and rainfall depth. It is found that there is not a similar correlation between CN values and rainfall depths for both temporally variable classes, and hence, two different responses can be observed in the catchment according to rainfall temporal heterogeneities. For HT events, a complacent behavior is detected in which the CNs decline as rainfall depth increases while a different response, violent behavior, is observed for LT events in which the CNs rise and asymptotically approach a constant value with increasing storm size. This considerable difference between CN-P relationships derived from the two temporally variable classes of rainfall is attributed to the provocation of different runoff generation mechanisms, infiltration-excess and saturation-excess caused by rainfall temporal heterogeneities. Moreover, the results support the validity of variogram technique to classify storm events into two LT and HT classes.
KeywordAsymptotic Approach Curve Number Method Infiltration-excess Rainfall Temporal Variation Saturation-excess Variogram Technique
DOI10.1007/s11629-014-3008-2
Indexed BySCI
Language英语
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/9103
CollectionJournal of Mountain Science_Journal of Mountain Science-2015_Vol12 No.3
Corresponding AuthorHassan REZAEI-SADR
Recommended Citation
GB/T 7714
Hassan REZAEI-SADR. Impact of Rainfall Temporal Heterogeneity on Relationship between Curve Number and Rainfall Depth in the Zagros Mountain Region, Iran[J]. Journal of Mountain Science,2015,12(3):689-698.
APA Hassan REZAEI-SADR.(2015).Impact of Rainfall Temporal Heterogeneity on Relationship between Curve Number and Rainfall Depth in the Zagros Mountain Region, Iran.Journal of Mountain Science,12(3),689-698.
MLA Hassan REZAEI-SADR."Impact of Rainfall Temporal Heterogeneity on Relationship between Curve Number and Rainfall Depth in the Zagros Mountain Region, Iran".Journal of Mountain Science 12.3(2015):689-698.
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