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Konstantin Chterev (Bulgarian: Константин Щерев) is a Bulgarian marine researcher, engineer, and technology entrepreneur. His work focuses on underwater exploration technologies and field research in the Black Sea, particularly in relation to the Black Sea deluge hypothesis. He has coordinated marine expeditions and developed remotely operated underwater vehicles (ROVs) used in Black Sea shelf surveys.[1][2][3][4][5]
His research activities and fieldwork have been featured in documentary productions by international broadcasters including National Geographic, Discovery Channel, and ZDF.[6][7]
Early Life and Education
[edit]Chterev studied at the Technical University of Varna. He later completed doctoral research at the Institute of Oceanology "Fridtjof Nansen", part of the Bulgarian Academy of Sciences, in the Section of Marine Geology and Archaeology.
His dissertation, defended in 2020, was titled Remotely Operated Vehicle for Underwater Research of the Shelf and falls within the field of oceanology and Earth sciences.[1][8]
Career and research
[edit]Chterev's research activity has focused on interdisciplinary marine fieldwork in the Black Sea, particularly investigations of submerged coastal landscapes associated with the Black Sea deluge hypothesis.[2][3][9]
He served as coordinator of a series of expeditions conducted by the Black Sea Research Fund in cooperation with the Institute of Oceanology at the Bulgarian Academy of Sciences. These expeditions, including those referred to as the Noah-2009 and Noah-2011 projects, examined geological formations, sediment layers, and submerged landforms in order to reconstruct past shoreline positions and environmental conditions.[3]
During the 2011 expedition aboard the research vessel Akademik, Chterev worked alongside marine geologist Petko Dimitrov and geologist William Ryan of Columbia University, who participated as assistant head scientist. The expedition involved offshore survey operations and the collection of geological and geomorphological data from the western Black Sea basin.[2][9][10]
Findings and activities related to these expeditions were reported in Bulgarian media, including coverage by Bulgarian National Television and other outlets, which highlighted ongoing underwater archaeological investigations and the possibility of submerged prehistoric settlements.[11]
Underwater technology
[edit]Parallel to his fieldwork, Chterev has been involved in the development of underwater exploration technologies. He designed and built the Sea Turtle, a remotely operated underwater vehicle (ROV) intended for seabed survey work on the Black Sea continental shelf.[4][5][12]
Related projects have included the development of surface and underwater drones for marine exploration and investigations connected to Black Sea flood hypotheses.[13]
The system was developed for use in marine geological and archaeological investigations and is reported to operate at depths of up to 250 metres, transmitting live high-definition video from the seabed. Earlier testing phases involved deployments at shallower depths and the development of communication and positioning systems for underwater navigation.[4][5][12]
Chterev's research in this area includes work on communication architectures for tethered underwater vehicles, including the use of power line communication systems for long-distance signal transmission.[14]
He has also contributed to research on control systems for ROV propulsion, including discrete modal control methods for thruster systems.
Fieldwork integration and applied research
[edit]Chterev's work combines applied engineering with marine field research, particularly through the integration of ROV-based survey systems into expedition workflows. His involvement in both the design of underwater vehicles and their deployment in Black Sea expeditions has been noted in publications describing expedition methodologies and results.[2][3][4][5][12]
In addition to academic publications, aspects of his work have been disseminated through media reports and documentary productions, contributing to broader public visibility of Black Sea marine research and related hypotheses concerning prehistoric environmental change.[9][11][6]
His academic work is indexed in international research databases and platforms, reflecting contributions to oceanology, marine engineering, and underwater systems research.
Media appearances
[edit]Chterev has appeared in documentary productions including Ancient X Files and Lost Cities with Albert Lin (National Geographic), Hunting Atlantis (Discovery Channel), and Mythos — Die größten Rätsel der Geschichte (ZDF).[6][7]
Other activities
[edit]Chterev provided financial support for the 2011 Black Sea expedition.[2]
He was involved in publishing the Bulgarian edition of Tale of the Troika and later acquired rights for an uncensored version.
He also supported the 2010 reunion album of the band FSB.[15][16]
Selected publications
[edit]Chterev, K.; Nikolov, N. (2024). "Lightweight Network Architecture for Tethered Underwater Vehicles." In: Yang, X.-S., Sherratt, R.S., Dey, N. (eds.) Proceedings of the Eighth International Congress on Information and Communication Technology (ICICT 2023).[14]
Chterev, K. (2024). "Power Line Communication for Long-Distance Underwater Applications." In: Yang, X.-S., Sherratt, R.S., Dey, N. (eds.) Proceedings of the Eighth International Congress on Information and Communication Technology (ICICT 2023).
Nikolov, N.N.; Grigorov, I.V.; Chterev, K.I. (2023). "Control of ROV Thrusters via Discrete Modal State Controller."
Slavova, K.; Chterev, K.; Dimitrov, D.; Peychev, V.; Dimitrov, P. (2012). "Ancient Coastlines of the Black Sea and Conditions for Human Presence — Black Sea Expedition 2011."
Chterev, K.; Dimitrov, D.; Peychev, V. (2012). "Древни брегови линии на Черно море и условия за човешко присъствие" [Ancient Coastlines of the Black Sea and the Conditions of Human Presence].
Chterev, K. (2018). "One-Way Short Baseline Underwater Positioning System." Fourteenth International Conference on Marine Sciences and Technologies, Varna, Bulgaria.
Chterev, K. (2020). Remotely Operated Vehicle for Underwater Research of the Shelf (Bulgarian: Дистанционно управляем апарат за подводно изследване на шелфа).
References
[edit]- ^ a b "Научни степени – Доктор – Институт по океанология "Фритьоф Нансен"" (in Bulgarian). Retrieved 2026-06-12.
- ^ a b c d e www.semanticscholar.org. S2CID 130779913 https://www.semanticscholar.org/paper/Ancient-coastlines-of-the-Black-Sea-and-conditions-Slavova-Chterev/a6128626e9090cb5bdb2114f41d1436665705503. Retrieved 2026-06-12.
{{cite web}}: Missing or empty|title=(help) - ^ a b c d Chterev, Konstantin; Dimitrov, Dimitar P.; Dimitrov, Petko S. (2011-01-01). "Ancient coastlines of the Black Sea and the conditions of human presence-expeditions" Noah-2009" and" Noah-2011. P. Dimitrov, D. Dimitrov, V. Pejchev, K. Slavova, Hr. Smolenov, Hr. Mihailov, K. Shterev, Atanas Vasilev. 2011". Journal of the Union of Scientists--Varna.
- ^ a b c d "Варненски океанолози: Направиха подводен робот за изследване на морското дъно". Chernomore (in Bulgarian). Retrieved 2026-06-12.
- ^ a b c d "Направиха уникален подводен робот за изследване на морското дъно". www.varna24.bg (in Bulgarian). 2017-03-27. Retrieved 2026-06-12.
- ^ a b c "Mythos - größten Rätsel der Geschichte: Geheimnis der Sintflut". ZDF (in German). Retrieved 2026-06-12.
- ^ a b www.imdb.com https://www.imdb.com/name/nm12804475/. Retrieved 2026-06-12.
{{cite web}}: Missing or empty|title=(help) - ^ "Серия 2. БЪЛГАРСКИ ДИСЕРТАЦИИ". www.nationallibrary.bg. Retrieved 2026-06-12.
- ^ a b c "Ноевият потоп". Списание Осем (in Bulgarian). Retrieved 2026-06-12.
- ^ "Корен на 11 400 г. доказа Черноморския потоп". Списание Осем (in Bulgarian). Retrieved 2026-06-12.
- ^ a b "Д-р Константин Щерев: Има вероятност под водите на Черно море да има изгубен град". bTV Новините (in Bulgarian). Retrieved 2026-06-12.
- ^ a b c "Списание 8, брой 10/2013 г." Списание Осем (in Bulgarian). Retrieved 2026-06-12.
- ^ "Варненски океанолози: Направиха подводен робот за изследване на морското дъно". Chernomore (in Bulgarian). Retrieved 2026-06-12.
- ^ a b Nikolov, Nikola N.; Grigorov, Ivan V.; Chterev, Konstantin I. (October 2023). Control of ROV Thrusters via Discrete Modal State Controller. pp. 55–60. Bibcode:2023auin.conf...75N. doi:10.1109/ICAI58806.2023.10339024. ISBN 979-8-3503-1291-1.
{{cite book}}:|journal=ignored (help) - ^ "Грандиозно завръщане на ФСБ във Варна". varnautre.bg. Retrieved 2026-06-12.
- ^ "Подготовката за концерта на завръщането за ФСБ във Варна тече с пълен ход". www.moreto.net. Retrieved 2026-06-12.