scholarly journals Investigation of hydraulics transport time scales within the Arvand River estuary, Iran

2013 ◽  
Vol 28 (25) ◽  
pp. 6006-6015 ◽  
Author(s):  
Amir Etemad-Shahidi ◽  
Mostafa Pirnia ◽  
Hengameh Moshfeghi ◽  
Charles Lemckert
Keyword(s):  
Time Scales ◽  
River Estuary ◽  
Transport Time

Transport time scales as physical descriptors to characterize heavily modified water bodies near ports in coastal zones

2014 ◽  
Vol 136 ◽  
pp. 76-84 ◽  
Author(s):  
Aina G. Gómez ◽  
Javier F. Bárcena ◽  
José A. Juanes ◽  
Bárbara Ondiviela ◽  
María L. Sámano
Keyword(s):  
Time Scales ◽  
Water Bodies ◽  
Coastal Zones ◽  
Transport Time ◽  
Heavily Modified Water Bodies

scholarly journals Sediment Transport Time Scales and Trapping Efficiency in a Tidal River

2017 ◽  
Vol 122 (11) ◽  
pp. 2042-2063 ◽  
Author(s):  
David K. Ralston ◽  
W. Rockwell Geyer
Keyword(s):  
Sediment Transport ◽  
Time Scales ◽  
Tidal River ◽  
Trapping Efficiency ◽  
Transport Time

scholarly journals Study on the Transport of Terrestrial Dissolved Substances in the Pearl River Estuary Using Passive Tracers

Water ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1235
Author(s):  
Bo Hong ◽  
Guangyu Wang ◽  
Hongzhou Xu ◽  
Dongxiao Wang
Keyword(s):  
Water Resource Management ◽  
River Flow ◽  
River Estuary ◽  
Pearl River Estuary ◽  
Dry Season ◽  
Pearl River ◽  
Transport Time ◽  
The Pearl River Estuary ◽  
Passive Tracers ◽  
The Pearl River

Highly populated river deltas are experiencing marine environment degradation resulting from the tremendous input of terrestrial dissolved substances (TeDS). The Pearl River Delta is one of the deltas with degradation of the water quality and ecological condition. The Pearl River Estuary (PRE) was investigated to reveal the fate and transport timescales of TeDS in order to provide guidance on water resource management and pollutant transport prediction. By using passive tracers in a calibrated 3D numerical model, the TeDS transports from five different outlet groups were investigated systematically. The TeDS transport time was computed by using the concept of water age, which is a measure of the time that has elapsed since the tracer was transported from the upstream boundary to the downstream concerned area. The tracer impacted area was defined by the area with tracer concentrations > 0.2 (arbitrary unit). The domains that were impacted by the tracer coming from each outlet group were identified separately. In the wet season, the impacted area was larger than in other seasons. The most prominent variations appeared in the Jiaomen–Hengmen–Hongqili (JHH) and Modaomen (MD) outlets. The hydrodynamic conditions controlled the offshore spreading of the TeDS. Assuming the TeDS were conservative, it took approximately 10–20 days for the TeDS to be transported from the head water to the entrance of the outlet. For the TeDS coming from the head water of the Humen outlet, it took approximately 40 (80) days for the TeDS to be transported out of the mouth of the Lingding Bay during the wet (dry) season. For the case of the TeDS coming from the head water of the JHH outlets, it took approximately 20 (40) days for the TeDS to be transported out of the Lingding Bay during the wet (dry) season. For the MD, Jiti and Yamen–Hutiao outlets, it usually took approximately 10 days for the TeDS to be transported from the head water to the inner shelf. The correlation coefficient between the river flow and tracer concentrations was 0.78, and between the river flow and transport time it was −0.70 at a station in the lower Lingding Bay. At the estuary mouth, the impacts of other forcing fields got stronger.

scholarly journals Assessing the Impacts of Sea Level Rise on Salinity Intrusion and Transport Time Scales in a Tidal Estuary, Taiwan

Water ◽  
2014 ◽  
Vol 6 (2) ◽  
pp. 324-344 ◽  
Author(s):  
Wen-Cheng Liu ◽  
Hong-Ming Liu
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
Time Scales ◽  
Salinity Intrusion ◽  
Transport Time ◽  
Tidal Estuary

Numerical study of sediment transport time scales in an ebb-dominated waterway

2020 ◽  
Vol 591 ◽  
pp. 125299 ◽  
Author(s):  
Lei Zhu ◽  
Wenping Gong ◽  
Heng Zhang ◽  
Weihao Huang ◽  
Rui Zhang
Keyword(s):  
Sediment Transport ◽  
Time Scales ◽  
Numerical Study ◽  
Transport Time
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