A simplification of the Einstein equation for the calculation of suspended sediment transport in rivers

Ali, Hydar Lafta; Mohammed, Thamer Ahamed; Yusuf, Badronnisa; Aziz, Azlan Abdul

doi:10.1504/ijhst.2018.095536

Cited by 3 publications

(2 citation statements)

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“…These parameters are Total Dissolved Solids (TDS), Electrical Conductivity (EC), and Power of Hydrogen (pH). The main reason for choosing TDS as an indicator in the water quality index is that it represents three different forms of existing solids in water, and these are suspended, volatile and dissolved solids that may contain organic and inorganic matters (Ali et al, 2018;Rabee et al, 2011). As shown in Table 1, the values of TDS at various locations of Al Hammar marsh were varied from less than 3000 ppm to more than 27000 ppm.…”

Section: Resultsmentioning

confidence: 99%

Assessment of Water Quality at Al-Hammar Marsh before and after Flow Improvement

Jafaar¹,

Mohammad²,

Ali³

2022

EEC

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Marshlands have been considered among the most productive ecosystems on Earth. Marshlands existingin Mesopotamia are recently acknowledged by the United Nations as one of the international heritage sites.The current research highlights the deterioration level in the water quantity of the Al Hammar marshwhich is one of the famous marshes in the south of Iraq. Recently, pipe culverts were constructed to reducethe salinity of the Al Hammar marsh. Data on Total Dissolved Solids (TDS), Electric Conductivity (EC), andPower of Hydrogen (pH) from February 2019 to February 2020 at five stations (distributed within Al Hammarmarsh) were used to assess the water quality before and after the construction of pipe culverts. Two standardswere used in the assessment: the Iraqi Water Quality Standard (IWQS, No.417) and the World HealthOrganization (WHO) Standards for drinking, irrigation, and aquatic life. In addition, the quality of ecologicalhealth in the Al Hammar marsh was assessed by using the Canadian Water Quality Index. Results showthat the quality of water in the Al Hammar marsh is not recommended to be used for irrigation while theaquatic life is at a threat level.

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Section: Resultsmentioning

confidence: 99%

Assessment of Water Quality at Al-Hammar Marsh before and after Flow Improvement

Jafaar¹,

Mohammad²,

Ali³

2022

EEC

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“…Furthermore, in regard to hydro-engineering, sediment is an important factor in determining the lifespan of dams (Yilmaz et al, 2018), as well as shaping channel navigation. Despite being viewed as a potential ecological risk (Hanoon et al, 2022), it has many positive aspects, viz., the delivery of nutrients, the formation and preservation of river deltas and the supply of sand as a building material (Ali et al, 2018). In general, sediments can be classified as bedload or suspended sediment (SS) depending on the nature of the transport pro-cesses.…”

Section: Introductionmentioning

confidence: 99%

A brief review of recent global trends in suspended sediment estimation studies

Hefzul Bari,

Yokoo,

Leong

2024

Hydrological Research Letters

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Sediment has the potential to influence the landscape, economy and way of life. If the estimation is accurate and the distribution characteristics are known, sediment can be used as a resource. In this brief review, we evaluated recent advances in suspended sediment estimation techniques between 2011 and 2022. The three most popular techniques are Sediment Rating Curves, Machine Learning Models and Physical and/or Numerical Models. Their potential and limitations are briefly explored. Our findings indicate that Machine Learning Models perform better, whereas Sediment Rating Curves offer flexibility in field applications. On the other hand, the paucity of necessary highresolution data for model calibration and validation hinders the performance of Physical and/or Numerical Models. The sampling frequency of input sediment data emerges as a pivotal factor influencing the performance of all methods. To overcome this issue, a semi-automatic surrogate method might be useful. Also, particle size could be included in the rating curves to obtain additional information. This is especially valuable for understanding sediment dynamics and the process of delta formation.

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