干旱区生态环境知识资源中心(Arid): Entropy-Based Temporal Downscaling of Precipitation as Tool for Sediment Delivery Ratio Assessment

Arid

DOI	10.3390/e23121615
	Entropy-Based Temporal Downscaling of Precipitation as Tool for Sediment Delivery Ratio Assessment
	Alencar, Pedro Henrique Lima; Paton, Eva Nora; de Araujo, Jose Carlos
通讯作者	Alencar, PHL (corresponding author)，Tech Univ Berlin, Inst Okol, Ernst Reuter Pl 1, D-10587 Berlin, Germany. ; Alencar, PHL (corresponding author)，Univ Fed Ceara, Dept Engn Agr, Campus Pici Fortaleza, BR-60020181 Fortaleza, Ceara, Brazil.
来源期刊	ENTROPY
EISSN	1099-4300
出版年	2021
卷号	23 期号:12
英文摘要	Many regions around the globe are subjected to precipitation-data scarcity that often hinders the capacity of hydrological modeling. The entropy theory and the principle of maximum entropy can help hydrologists to extract useful information from the scarce data available. In this work, we propose a new method to assess sub-daily precipitation features such as duration and intensity based on daily precipitation using the principle of maximum entropy. Particularly in arid and semiarid regions, such sub-daily features are of central importance for modeling sediment transport and deposition. The obtained features were used as input to the SYPoME model (sediment yield using the principle of maximum entropy). The combined method was implemented in seven catchments in Northeast Brazil with drainage areas ranging from 10(-3) to 10(+2) km(2) in assessing sediment yield and delivery ratio. The results show significant improvement when compared with conventional deterministic modeling, with Nash-Sutcliffe efficiency (NSE) of 0.96 and absolute error of 21% for our method against NSE of -4.49 and absolute error of 105% for the deterministic approach.
英文关键词	maximum entropy sediment transport sediment yield hydrology
类型	Article
语种	英语
开放获取类型	Green Published
收录类别	SCI-E
WOS记录号	WOS:000737144000001
WOS关键词	CLIMATE-CHANGE ; HYDROLOGICAL MODELS ; RAINFALL EROSIVITY ; IMPACTS ; GAMMA ; INFORMATION ; NORTHEAST ; EXTREMES ; EROSION ; EVENTS
WOS类目	Physics, Multidisciplinary
WOS研究方向	Physics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/375778
作者单位	[Alencar, Pedro Henrique Lima; Paton, Eva Nora] Tech Univ Berlin, Inst Okol, Ernst Reuter Pl 1, D-10587 Berlin, Germany; [Alencar, Pedro Henrique Lima; de Araujo, Jose Carlos] Univ Fed Ceara, Dept Engn Agr, Campus Pici Fortaleza, BR-60020181 Fortaleza, Ceara, Brazil
推荐引用方式 GB/T 7714	Alencar, Pedro Henrique Lima,Paton, Eva Nora,de Araujo, Jose Carlos. Entropy-Based Temporal Downscaling of Precipitation as Tool for Sediment Delivery Ratio Assessment[J],2021,23(12).
APA	Alencar, Pedro Henrique Lima,Paton, Eva Nora,&de Araujo, Jose Carlos.(2021).Entropy-Based Temporal Downscaling of Precipitation as Tool for Sediment Delivery Ratio Assessment.ENTROPY,23(12).
MLA	Alencar, Pedro Henrique Lima,et al."Entropy-Based Temporal Downscaling of Precipitation as Tool for Sediment Delivery Ratio Assessment".ENTROPY 23.12(2021).