Dr. Sina Alaghmand

Dr. Sina Alaghmand

Adjunct Lecturer
Department of Civil Engineering

Dr Sina Alaghmand joined Monash University in September 2014 as a lecturer in Water Engineering at the Department of Civil Engineering contributing to three Monash Campuses including Clayton, Malaysia and Suzhou (China). He coordinated and delivered several Civil Engineering units at both undergrad and postgraduate levels including; Groundwater Hydraulics (CIV5881), Surfacewater Hydrology (CIV5883), Water Systems (CIV2263), Integrated Urban Water Management (CIV4261), Computing and Water Systems Modelling (CIV2207), Spatial Communication in Engineering (ENG1021) and Engineering Investigations (3204).

His research covers various aspects of water resources engineering, including both surface water and groundwater. As a river engineer, he has been working on surface water hydrology to explore impacts of human-induced activities on the hydrological cycle, including flood hazard assessment and flood risk mitigation using hydraulic and hydrological models. Moreover, he has been investigating SW-GW interactions using fully-integrated numerical models to understand and quantify temporal and spatial dynamics of salt and water, both in local and catchment scales under various scenarios. He is also interested in applications of geophysical data in hydrogeological modelling.

ORCID

 

Qualifications

  • BSc in Irrigation Engineering (Honours), 2006, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
  • MSc in Civil Engineering (River Engineering), 2009, University of Science, Malaysia (USM), School of Civil Engineering, Penang, Malaysia
  • PhD in Civil Engineering (Water Resources Engineering), 2014, University of South Australia (UniSA), Adelaide, Australia

Expertise

Hydraulics: River engineering, Flood hazard assessment, Flood risk mitigation
Hydrology: Catchment-scale hydrological modelling, Solute and water dynamics, Eco-hydrology
Hydrogeology: Surface water-groundwater interactions, Groundwater dynamics

Awards and Honours

School Research Award (ECR Category), School of Engineering, Monash University (Malaysia Campus), January 2017.

Finalist for the Australian Water Association (AWA) postgraduate award, December 2013.

Gold medal from UNESCO-IHP for the best MSc thesis in water resources research field, March 2010.

 

Professional memberships

International Water Association (IWA)

International Association for Hydro-Environment Engineering (IAHR)

American Geophysical Union (AGU)

International Association of Hydrogeologists (IAH)

International Association of Hydrological Sciences (IAHS)

Research Interests

Hydraulics: River engineering, Flood hazard assessment, Flood risk mitigation

Hydrology: Catchment-scale hydrological modelling, Solute and water dynamics, Eco-hydrology

Hydrogeology: Surface water-groundwater interactions, Groundwater dynamics

Research Projects

Current projects

An advanced river flood risk map prediction for flood disaster management: economical and ecological assessment framework

Application of mobile apps for hydro-logical data improvement through community-based observations

Past projects

River Flood Modelling for Flood Risk Map Prediction

Numerical modelling of surface water and groundwater flow and solute interactions between a river and a saline floodplain in semi-arid region

Flood Hazard Map Utilizing Public Domain Inundation Hydrological (FRM) and Hydraulic (HEC-RAS) Models and GIS

Sustainable Management of Stormwater Quantity and Quality in Tropical Urban Catchments Using Bioretention Basins - An Experimental Study

Investigating the role of vegetation and climate change in ephemeral catchment salinity using multi-domain, physically-based modelling

Hydrological impacts of land-use change on streamflow quantity in a sub-catchment of Klang Basin

Modeling hydrological response of intermittent catchments to rainfall variability and afforestation

Latest list of publications can be found at
Google Scholar

Scopus profile

Supervision

PHD

Ali Azarnivand
Modeling hydrological response of intermittent catchments to rainfall variability and afforestation
2016 to 2020

Neetu Singh
Remote sensing assessment of groundwater depletion in India
2019 to 2020

Kamran Somroo
Saline water influence on water productivity, soil salinity and economics of bitter-gourd (Momordica charantia l) using drip irrigation methodSaline water influence on water productivity, soil salinity and economics of bitter-gourd (Momordica charantia l) using drip irrigation method
2015 to 2019

Mayuran Jayatharan
Advanced River Flood Risk Map Prediction for Flood Disaster Management
2019

Sina Zahedi
2020

Masters

Hossein Daneshmand
Investigating the role of vegetation and climate change in ephemeral catchment salinity using multi-domain, physically-based modelling
2016 to 2018

Ong Hon Lim
Hydrological impacts of land use change on streamflow quantity in a sub-catchment of Klang Basin
2016 to 2018

Youssef Shalaby
Application of mobile apps for hydro-logical data improvement through community-based observations
2020

Teaching Commitments

  • CIV5881 - Groundwater hydraulics
  • CIV5883 - Surface water hydrology
  • CIV4261 - Integrated Urban Water Management
  • CIV3204 - Engineering Investigations
  • CIV2263 - Water Systems
  • CIV2207 - Computing and Water Systems Modelling

PHD Thesis

Numerical modelling of surface water and groundwater flow and solute interactions between a river and a saline floodplain in a semi-arid region

Summary
The Murray River is one of Australia’s longest rivers but in South Australia it has become degraded through river regulation, water extraction and adjacent highland irrigation. These have decreased the natural flood frequency and increased rates of floodplain salinization. Concerns have been raised about the quality of water extracted from the Murray River for industrial, agricultural and potable uses, including for metropolitan Adelaide’s water supply. This has been highlighted as the most significant hydrological risk by the Murray Darling Basin Authority (MDBA) and therefore a comprehensive understanding of flow and solute dynamics within the river and floodplain environment is essential. Hence, this research is aimed at developing a better understanding of surface water (SW) and groundwater (GW) flow and solute interactions in a semi-arid river-floodplain system using a numerical modelling approach.

Collaborating closely with CSIRO, DEWNR, SA Water and NCGRT, this research initially involved a comprehensive review of the current understanding of numerical modelling of salt mobilization arising from SW-GW interactions. The review concluded that the level of understanding of arid and semi-arid environments is still relatively basic, particularly in relation to SW-GW interactions in floodplains. Following this, Clark’s Floodplain in the Lower Murray River was chosen as a study site where sufficient observation facilities were available. The Hydro-Geo-Sphere model was selected for this research because it is a 3D physically-based fully integrated surface-subsurface numerical model with variable saturation and solute transport simulation capabilities. A calibrated model was developed and a number of scenarios were designed to investigate the impacts of different drivers on the river-floodplain system processes such as groundwater-table dynamics, evapo-transpiration (ET), bank storage, regional groundwater recharge and floodplain salinization. The identified drivers include floodplain vegetation cover, groundwater lowering, river stage manipulation, artificial flooding and water injection to the saline floodplain aquifer.

The results show that vegetation cover type can have significant impacts on the flow and solute interaction dynamics due to the influence of ET as a dominant hydrological driver. It was also found that groundwater lowering mitigates the floodplain salinization risk via two mechanisms, namely extraction of the solute mass and creating a divide which stops saline water reaches the floodplain by lowering the groundwater-table. Also, it appears that groundwater extraction is able to remove some of the solute stored in the unsaturated zone. Furthermore, river stage manipulation is beneficial for floodplain health because it amplifies the freshwater lens during high-flow pulses through the mixing of fresh river water with saline groundwater. In addition, it was shown that artificial flooding can temporarily form less saline groundwater and soil profiles that improve water availability for vegetation. However, it was found that this effect is generally limited to the inundated zone. Finally, it was shown that injection of fresh river water to the saline floodplain aquifer may potentially improve soil water availability in the capillary fringe. However, application of this technique seems to be relatively costly and has associated potential problems such as aquifer clogging and well breaching.

To conclude, it appears that all of these salt interception measures are limited spatially and temporally. Indeed, none of these measures are able to permanently change the natural condition of the floodplain groundwater salinity and flow regime. Hence the interventions should be considered only as short term management techniques. However, if longer term strategies are required, it may be possible to implement these salt interception measures periodically. The outcomes of this research contribute to a better understanding of how to maintain a healthier floodplain in arid and semi-arid environments using different available management strategies. This research also provides knowledge regarding the ecological implications of SW-GW flow and solute interactions in a semi-arid river-floodplain system, with a particular focus on the Lower Murray River region.

Last modified: 01/03/2021