PhD student position in Dissolved organic carbon dynamics in surface water and groundwater ecosystems under the impact of climate change via EGU

Tallinn University

Tallinn, Estonia 🇪🇪

Position: PhD student position in Dissolved organic carbon dynamics in surface water and groundwater ecosystems under the impact of climate change

Employer: Tallinn University

The Institute of Ecology at the Tallinn University is the successor of the Institute of Ecology established in 1992. Since the foundation of the institute, our researchers have successfully focused on studying the functioning and development of water-related ecosystems and making recommendations based on this knowledge for sustainable management of natural resources. Our research areas have been lakes, rivers, coasts and peatlands, but increasingly also groundwater as a link that binds and affects these all. The aim of the research is to clarify the nature of the development and existence of different water bodies and their associated ecosystems.


Location: Tallinn, Estonia

Sector: Academic

Relevant divisions:

Geomorphology (GM)
Hydrological Sciences (HS)
Soil System Sciences (SSS)

Type: Full time

Level: Student / Graduate / Internship

Salary: A monthly stipendium for up to 48 months

Required education: Master

Application deadline: 29 June 2023

Posted: 1 March 2023

Job description

The proposed PhD project focuses on the dynamics of dissolved organic carbon (DOC) in surface water and shallow groundwater under the impact of climate change.

The successful PhD candidate will be recruited to an early stage researcher position related to and partly financed by a five-year EU-funded LIFE program starting in January 2023.

Climate change is affecting the environment and water resources, causing shifts in aquatic ecosystem biodiversity at an alarming level. Rising temperatures and changes in precipitation patterns are not only causing water scarcity and intense flooding, but are also expected to destabilize organic carbon storage in soil and organic sediments. While it has been well established that DOC concentrations have increased in high latitude surface water bodies, the consequent trends in shallow groundwater have been far less documented. In order to study this phenomenon, several pilot sites will be selected across Estonia, where complex monitoring will be carried out over several years.

The main tasks of the project are:

  • To conduct thorough quantitative and qualitative research on selected pilot sites. Including monitoring of surface water-groundwater hydrodynamics and water chemistry;
  • to evaluate DOC transport and mixing in surface water and shallow groundwater;
  • to provide input data and take part in modelling the interaction between groundwater and surface water in coupled models;
  • to assess the impacts of climate change on surface water and groundwater ecosystems;
  • to compare the potential impact of different climate scenarios on the DOC balance in surface water and groundwater.

More information about the Complex Systems in Natural Sciences PhD program at Tallinn University:

How to apply

For detailed information on how to apply for the PhD position, please visit





IHE Delft MSc in Water and Sustainable Development