Eduard Khachatrian

Master of science Eduard Khachatrian will Thursday June 15, 2023, at 12:15 hold his disputas for the PhD degree in Science. The title of his thesis is: 

"Multimodal Integrated Remote Sensins for Arctic Sea Ice Monitoring"


Remote sensing data acquired from various sensors have been used for decades to monitor sea ice conditions over polar regions. Sea ice plays an essential role in the polar environment and climate. Furthermore, sea ice affects anthropogenic activities, including shipping and navigation, the oil and gas industry, fisheries, tourism, and the lifestyle of the indigenous population of the Arctic. With the continuous decline of sea ice in the Arctic the presence of human-based activities will grow. Therefore, reliable information about sea ice conditions is of primary interest to protect the Arctic and to ensure safe and effective commercial activities and polar navigation. Currently, sea ice services produce operational ice charts manually using the knowledge of sea ice experts. However, with an increasing number of various data sources that provide different information regarding sea ice, it is important to develop automatic methods for sea ice characterization. Robust and automatic ice charting can not be achieved using only one satellite mission. It is fundamental to combine information from various remote sensors with different characteristics for more reliable sea ice monitoring and characterization. However, how do we know that all the information is actually relevant? It may be redundant, corrupted, or unnecessary for the given task, hence decreasing the performance of the algorithms from the required processing time and accuracy point of view. Therefore, it is crucial to select an optimal set of features that provides the relevant information content to enhance the efficiency and accuracy of the image interpretation and retrieval of geophysical parameters.

Evaluation Committee

  • Prof. Jocelyn Chanussot, Grenoble Institute of Technology, France (1. Opponent)
  • Dr. Giampaolo Ferraioli, Univ. of Naples Parthenope, Napoli, Italia (2. Opponent)
  • Associate Professor Malin Johansson, IFT, UiT (intern member and leader of evaluation committee)


  • Associate Professor Andrea Marinoni, CIRFA, IFT, UiT (main supervisor)
  • Professor Torbjørn Eltoft, CIRFA, IFT, UiT (co-supervisor)
  • Associate Professor Anthony Doulgeris, CIRFA, IFT, UiT (co-supervisor)
  • Professor II Wolfgang Dierking (co-supervisor)

The Disputas will be led by Professor Unni Pia Løvhaug, department of Physics and Technology.

Streaming site

The disputas and trial lecture will be streamed from these sites:

Disputas (12:15 - 16:00)

Trial Lecture (10:15 - 11:15)


The thesis is available through Munin.

When: 15.06.23 at 12.15–16.00
Where: Store Auditorium B302, Realfagsbygget
Location / Campus: Digital, Tromsø
Target group: Employees, Students, Guests, Invited, Unit
Contact: Helge Ravn
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