干旱区生态环境知识资源中心(Arid): Sub-hourly rainfall patterns by hyetograph type under distinct climate conditions in Northeast of Brazil: a comparative inference of their key properties

Arid

DOI	10.1590/2318-0331.231820180076
	Sub-hourly rainfall patterns by hyetograph type under distinct climate conditions in Northeast of Brazil: a comparative inference of their key properties
	Barbosa, Luis Romero; Almeida, Cristiano das Neves; Rabelo Coelho, Victor Hugo; Freitas, Emerson da Silva; Galvao, Carlos de Oliveira; de Araujo, Jose Carlos
通讯作者	Barbosa, LR
来源期刊	RBRH-REVISTA BRASILEIRA DE RECURSOS HIDRICOS
ISSN	1414-381X
EISSN	2318-0331
出版年	2018
卷号	23
英文摘要	The lack of process-based classification procedures may lead to unrealistic hyetograph design due to complex oscillation of rainfall depths when assimilated at high temporal resolutions. Four consecutive years of sub-hourly rainfall data were assimilated in three study areas (Guaraira, GEB, Sao Joao do Cariri, CEB, and Aiuaba, AEB) under distinct climates (very hot semi-arid and tropical wet). This study aimed to define rainfall events (for Minimum Inter-event Time, MIT, and Minimum Rainfall Depth, MRD, equal to 30 min and 1.016 mm, respectively), classify their hyetograph types (rectangular, R, unimodal with left-skewed, UL, right-skewed, UR, and centred peaks, UC, bimodal, B, and shapeless, SL), and compare their key rainfall properties (frequency, duration, depth, rate and peak). A rain pulse aggregation process allowed for reshaping SL-events for six different time spans varying from 2 to 30 min. The results revealed that the coastal area held predominantly R-events (64% events and 49% rainfall depth), in western semi-arid prevailed UL-events (57% events and 63% rainfall depth), whereas in eastern semi-arid mostly were R-events (61% events and 30% rainfall depth) similar to coastal area. It is concluded that each cloud formation type had important effects on hyetograph properties, differentiating them even within the same climate.
英文关键词	Rainfall event MIT MRD Hyetograph classification Northeast of Brazil
类型	Article
语种	英语
开放获取类型	DOAJ Gold
收录类别	ESCI
WOS记录号	WOS:000457439200019
WOS关键词	EVENT PROPERTIES ; INTENSITY ; INFILTRATION ; VARIABILITY ; SIMULATION ; BASIN
WOS类目	Water Resources
WOS研究方向	Water Resources
Scopus学科分类	Univ Fed Paraiba, Joao Pessoa, PB, Brazil.
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/333269
作者单位	[Barbosa, Luis Romero] Univ Potsdam, Potsdam, Germany; [Barbosa, Luis Romero; Almeida, Cristiano das Neves; Rabelo Coelho, Victor Hugo; Freitas, Emerson da Silva] Univ Fed Paraiba, Joao Pessoa, PB, Brazil; [Galvao, Carlos de Oliveira] Univ Fed Campina Grande, Campina Grande, PB, Brazil; [de Araujo, Jose Carlos] Univ Fed Ceara, Fortaleza, CE, Brazil
推荐引用方式 GB/T 7714	Barbosa, Luis Romero,Almeida, Cristiano das Neves,Rabelo Coelho, Victor Hugo,et al. Sub-hourly rainfall patterns by hyetograph type under distinct climate conditions in Northeast of Brazil: a comparative inference of their key properties[J],2018,23.
APA	Barbosa, Luis Romero,Almeida, Cristiano das Neves,Rabelo Coelho, Victor Hugo,Freitas, Emerson da Silva,Galvao, Carlos de Oliveira,&de Araujo, Jose Carlos.(2018).Sub-hourly rainfall patterns by hyetograph type under distinct climate conditions in Northeast of Brazil: a comparative inference of their key properties.RBRH-REVISTA BRASILEIRA DE RECURSOS HIDRICOS,23.
MLA	Barbosa, Luis Romero,et al."Sub-hourly rainfall patterns by hyetograph type under distinct climate conditions in Northeast of Brazil: a comparative inference of their key properties".RBRH-REVISTA BRASILEIRA DE RECURSOS HIDRICOS 23(2018).