Profile image of Steven Sandi Rojas

Dr Steven Sandi Rojas



Lecturer, Civil and Environmental Engineering


Faculty of Sci Eng & Built Env


School of Engineering


Geelong Waurn Ponds Campus


Biography summary

Steven is originally from Costa Rica, where he graduated as a Civil Engineer. He moved to Australia to complere a PhD in Environmental Engineering at The University of Newcastle, where he remained working as an Associate Lecturer until 2022. In March 2023, Steven started working at Deakin as a Lecturer in Civil and Environmental Engineering.

Steven's main interests is the study of interactions between water and the environment. His research focuses on eco-hydrologic and eco-geomorphic processes, with emphasis on the development of numerical modelling applications. In his doctoral and post doctoral work, Steven has developed models for simulating changes in environmental conditions of freshwater and coastal wetlands under different management scenarios, climate variability and other anthropogenic pressures. His modelling approach integrates the use of two dimensional flood models with on-site and remotely sensed data. These models are used to estimate the dynamic of vegetation in wetlands over time. 

Research interests

  • Eco-hydrologic modelling modelling
  • Wetland system modelling 
  • Blue carbon

Teaching interests

  • Water resources management
  • Hydrology
  • Water engineering design
  • Hydraulics

Units taught

SEV322 - Hydrology and Hydraulics


Early Career Research Excellence Award, Faculty of Engineering and Built Environment, The University of Newcastle.


Filter by


NDVI Response to Satellite-Estimated Antecedent Precipitation in Dryland Pastures

C Brieva, P Saco, S Sandi, S Mora, J Rodríguez

(2023), Vol. 15, pp. 1-21, Remote Sensing, Basel, Switzerland, C1

journal article

And we thought the Millennium Drought was bad: Assessing climate variability and change impacts on an Australian dryland wetland using an ecohydrologic emulator

Juan Quijano-Baron, Rebecca Carlier, Jose Rodriguez, S Sandi Rojas, Patricia Saco, Li Wen, George Kuczera

(2022), Vol. 218, pp. 1-14, Water Research, Amsterdam, The Netherlands, C1-1

journal article

Australian forested wetlands under climate change: Collapse or proliferation?

N Saintilan, E Asbridge, R Lucas, K Rogers, L Wen, M Powell, M Colloff, J Rodriguez, P Saco, S Sandi, T Pham, L Lymburner

(2022), Vol. 73, pp. 1255-1262, Marine and Freshwater Research, Melbourne, Vic., C1-1

journal article

Assessing the effects of sediment and tidal level variability on coastal wetland evolution

A Breda, P Saco, J Rodríguez, S Sandi, G Riccardi

(2022), Vol. 613, pp. 1-14, Journal of Hydrology, Amsterdam, The Netherlands, C1

journal article

The role of soils in the regulation of hazards and extreme events

P Saco, K McDonough, J Rodriguez, J Rivera-Zayas, S Sandi Rojas

(2021), Vol. 376, pp. 1-10, Philosophical Transactions of the Royal Society B: Biological Sciences, London, Eng., C1-1

journal article

Accretion, retreat and transgression of coastal wetlands experiencing sea-level rise

A Breda, P Saco, S Sandi, N Saintilan, G Riccardi, J Rodríguez

(2021), Vol. 25, pp. 769-786, Hydrology and Earth System Sciences, Göttingen, Germany, C1-1

journal article

Accelerated Sea‐Level Rise Limits Vegetation Capacity to Sequester Soil Carbon in Coastal Wetlands: A Study Case in Southeastern Australia

S Sandi Rojas, J Rodriguez, P Saco, N Saintilan, G Riccardi

(2021), Vol. 9, pp. 1-24, Earth's Future, Hoboken, NJ, C1-1

journal article

Resilience of trees and the vulnerability of grasslands to climate change in temperate Australian wetlands

Neil Saintilan, Sharon Bowen, Owen Maguire, Sara Karimi, Li Wen, Megan Powell, Matthew Colloff, S Sandi Rojas, P Saco, J Rodriguez

(2021), Vol. 36, pp. 803-814, Landscape Ecology, Berlin, Germany, C1-1

journal article

Using hydrological connectivity to detect transitions and degradation thresholds: Applications to dryland systems

Patricia Saco, José Rodríguez, Mariano Moreno-de las Heras, Saskia Keesstra, Samira Azadi, Steven Sandi Rojas, Jantiene Baartman, Jesús Rodrigo-Comino, María Rossi

(2020), Vol. 186, pp. 1-14, CATENA, Amsterdam, The Netherlands, C1-1

journal article

Patch organization and resilience of dryland wetlands

Steven Sandi Rojas, Patricia Saco, Jose Rodriguez, Neil Saintilan, Li Wen, George Kuczera, Gerardo Riccardi, Garry Willgoose

(2020), Vol. 726, pp. 1-10, Science of The Total Environment, Amsterdam, The Netherlands, C1-1

journal article

Detecting inundation thresholds for dryland wetland vulnerability

S Sandi, P Saco, N Saintilan, L Wen, G Riccardi, G Kuczera, G Willgoose, J Rodríguez

(2019), Vol. 128, pp. 168-182, Advances in Water Resources, C1-1

journal article

Rising tides, rising gates: The complex ecogeomorphic response of coastal wetlands to sea-level rise and human interventions

S Sandi, J Rodríguez, N Saintilan, G Riccardi, P Saco

(2018), Vol. 114, pp. 135-148, Advances in Water Resources, C1-1

journal article

Potential increase in coastal wetland vulnerability to sea-level rise suggested by considering hydrodynamic attenuation effects

J Rodríguez, P Saco, S Sandi, N Saintilan, G Riccardi

(2017), Vol. 8, Nature Communications, C1-1

journal article

Development of a vegetation dynamics model for freshwater wetland assessment in the Macquarie Marshes

S Sandi, J Rodriguez, P Saco, N Saintilan, L Wen, G Kuczera

(2015), pp. 948-955, The Art and Science of Water - 36th Hydrology and Water Resources Symposium, HWRS 2015, E1-1


Funded Projects at Deakin

No Funded Projects at Deakin found


No completed student supervisions to report