Estimating Bankfull Discharge and Depth in Ungauged Estuaries

River discharge is important for the morphology and hydrodynamics of estuaries as it influences the salt intrusion process, tidal dynamics, freshwater supply (water resources management), and the occurrence of floods. Here we try to derive river regime characteristics from the seaward end: the estua...

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Main Authors:	Gisen, J. I. A., Savenije, H. H. G.
Format:	Article
Language:	English
Published:	Wiley 2015
Subjects:	TA Engineering (General). Civil engineering (General) TC Hydraulic engineering. Ocean engineering
Online Access:	http://umpir.ump.edu.my/id/eprint/9355/ http://umpir.ump.edu.my/id/eprint/9355/ http://umpir.ump.edu.my/id/eprint/9355/ http://umpir.ump.edu.my/id/eprint/9355/2/Estimating%20bankfull%20discharge%20and%20depth%20in%20ungauged%20estuaries.pdf

id	ump-9355
recordtype	eprints
spelling	ump-93552018-05-21T01:49:50Z http://umpir.ump.edu.my/id/eprint/9355/ Estimating Bankfull Discharge and Depth in Ungauged Estuaries Gisen, J. I. A. Savenije, H. H. G. TA Engineering (General). Civil engineering (General) TC Hydraulic engineering. Ocean engineering River discharge is important for the morphology and hydrodynamics of estuaries as it influences the salt intrusion process, tidal dynamics, freshwater supply (water resources management), and the occurrence of floods. Here we try to derive river regime characteristics from the seaward end: the estuary. It is found that there are empirical relationships that link the geometry of an estuary to its river regime, which can be used to estimate river discharge characteristics with the least of data available. The aims of this study are: (1) to derive empirical relations between geometrical characteristics of estuaries and the bankfull discharge; (2) to explore a physical explanation for this relation; and (3) to estimate the bankfull discharge in estuaries. The physical connection between an estuary and its river regime is found by combining estuary shape analysis, tidal dynamic analysis, and Lacey’s hydraulic geometry theory. The relationships found between the estuary depth, width, and bankfull river discharge have been tested in 23 estuaries around the world (including seven recently surveyed estuaries). From the analysis, it shows that the depth of an estuary is a function of the bankfull flood discharge to the power of 1/3, which is in agreement with Lacey’s formula. This finding not only provides a method to estimate estuary depth, it also allows estimating flood discharge characteristics from readily available estuary shape indicators. Wiley 2015-04-11 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/9355/2/Estimating%20bankfull%20discharge%20and%20depth%20in%20ungauged%20estuaries.pdf Gisen, J. I. A. and Savenije, H. H. G. (2015) Estimating Bankfull Discharge and Depth in Ungauged Estuaries. Water Resources Research, 51 (4). pp. 2298-2316. ISSN 1944-7973 http://dx.doi.org/10.1002/2014WR016227 DOI: 10.1002/2014WR016227
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TA Engineering (General). Civil engineering (General) TC Hydraulic engineering. Ocean engineering
spellingShingle	TA Engineering (General). Civil engineering (General) TC Hydraulic engineering. Ocean engineering Gisen, J. I. A. Savenije, H. H. G. Estimating Bankfull Discharge and Depth in Ungauged Estuaries
description	River discharge is important for the morphology and hydrodynamics of estuaries as it influences the salt intrusion process, tidal dynamics, freshwater supply (water resources management), and the occurrence of floods. Here we try to derive river regime characteristics from the seaward end: the estuary. It is found that there are empirical relationships that link the geometry of an estuary to its river regime, which can be used to estimate river discharge characteristics with the least of data available. The aims of this study are: (1) to derive empirical relations between geometrical characteristics of estuaries and the bankfull discharge; (2) to explore a physical explanation for this relation; and (3) to estimate the bankfull discharge in estuaries. The physical connection between an estuary and its river regime is found by combining estuary shape analysis, tidal dynamic analysis, and Lacey’s hydraulic geometry theory. The relationships found between the estuary depth, width, and bankfull river discharge have been tested in 23 estuaries around the world (including seven recently surveyed estuaries). From the analysis, it shows that the depth of an estuary is a function of the bankfull flood discharge to the power of 1/3, which is in agreement with Lacey’s formula. This finding not only provides a method to estimate estuary depth, it also allows estimating flood discharge characteristics from readily available estuary shape indicators.
format	Article
author	Gisen, J. I. A. Savenije, H. H. G.
author_facet	Gisen, J. I. A. Savenije, H. H. G.
author_sort	Gisen, J. I. A.
title	Estimating Bankfull Discharge and Depth in Ungauged Estuaries
title_short	Estimating Bankfull Discharge and Depth in Ungauged Estuaries
title_full	Estimating Bankfull Discharge and Depth in Ungauged Estuaries
title_fullStr	Estimating Bankfull Discharge and Depth in Ungauged Estuaries
title_full_unstemmed	Estimating Bankfull Discharge and Depth in Ungauged Estuaries
title_sort	estimating bankfull discharge and depth in ungauged estuaries
publisher	Wiley
publishDate	2015
url	http://umpir.ump.edu.my/id/eprint/9355/ http://umpir.ump.edu.my/id/eprint/9355/ http://umpir.ump.edu.my/id/eprint/9355/ http://umpir.ump.edu.my/id/eprint/9355/2/Estimating%20bankfull%20discharge%20and%20depth%20in%20ungauged%20estuaries.pdf
first_indexed	2023-09-18T22:07:50Z
last_indexed	2023-09-18T22:07:50Z
_version_	1777414827905384448

Estimating Bankfull Discharge and Depth in Ungauged Estuaries

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