干旱区生态环境知识资源中心(Arid): Modelling intermittence and river flow in the semi-arid region of Brazil: The Umbuzeiro River, Ceara

Arid

DOI	10.5935/1806-6690.20220051
	Modelling intermittence and river flow in the semi-arid region of Brazil: The Umbuzeiro River, Ceara
	Lima, Gabriela Domingos; Rodrigues Lima, Thales Bruno; Soares, Nazare Suziane; de Araujo, Jose Carlos
通讯作者	Lima, GD
来源期刊	REVISTA CIENCIA AGRONOMICA
ISSN	0045-6888
EISSN	1806-6690
出版年	2022
卷号	53
英文摘要	Research shows an increase in the intermittence of rivers of different spatial scales. Exploring intermittence in semi-arid regions, also characterised by a scarcity of data, is important for understanding the process on a global scale. The aim of this study, therefore, was to evaluate the ability of a physically based hydrological model (WASA) to simulate simultaneously the intermittence and flow of the Umbuzeiro River, whose basin is located in Aiuaba, Ceara. The analysis was carried out in three nested basins: the Bengue Reservoir (933 km(2)), the Aroeira Reservoir (800 km2) and the Aiuaba Experimental Basin (AEB, 12 km2). Eleven simulations were carried out, altering various parameters (saturated hydraulic conductivity of the soil on the slopes and on the riverbed, hydraulic conductivity of the crystalline basement, depth of the riverbed, and the rainfall intensity parameter of the model). The model better represented the larger basins (10(3) km(2)) compared to the smaller scale basin (10(1) km(2)). The simulations showed a marked improvement once the hydraulic conductivity of the soils as measured in situ had been applied, confirming the physical basis of the model. The most sensitive parameter for the generation of flow was the saturated hydraulic conductivity of the soil. This can be explained by the prevalence of Hortonian flow in the basin. It was concluded that none of the parameterisations was successful in simultaneously representing the two processes (intermittence and flow) on the scales of the three basins.
英文关键词	Water resource Hydrological modelling River flow WASA model
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000850769900001
WOS关键词	HYDROLOGICAL IMPACT ; SOIL-WATER ; PATTERNS ; CONNECTIVITY ; BASIN
WOS类目	Agriculture, Multidisciplinary
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394305
推荐引用方式 GB/T 7714	Lima, Gabriela Domingos,Rodrigues Lima, Thales Bruno,Soares, Nazare Suziane,et al. Modelling intermittence and river flow in the semi-arid region of Brazil: The Umbuzeiro River, Ceara[J],2022,53.
APA	Lima, Gabriela Domingos,Rodrigues Lima, Thales Bruno,Soares, Nazare Suziane,&de Araujo, Jose Carlos.(2022).Modelling intermittence and river flow in the semi-arid region of Brazil: The Umbuzeiro River, Ceara.REVISTA CIENCIA AGRONOMICA,53.
MLA	Lima, Gabriela Domingos,et al."Modelling intermittence and river flow in the semi-arid region of Brazil: The Umbuzeiro River, Ceara".REVISTA CIENCIA AGRONOMICA 53(2022).