Harald Yndestad

Professor emeritus

Department of ICT and Natural Sciences Faculty of Information Technology and Electrical Engineering

harald.yndestad@ntnu.no +47 70161280 +47 93239261

Hovedbygget, Ålesund

RESEARCH

1 CLIMATE VARIABILITY MODELING

1995-2008: Lunar climate variability model
Q: Is there deterministic periods in Atlantic climate?
M: Wavelet spectrum analysis of climate data series
R: A 18.6 year lunar tide spectrum is identified in North Atlantic water temperature, the NAO winter index, Arctic ice extent and rainfall in Norway.

2014-2016: Solar irradiation variability model
Q: Is there deterministic periods in solar variability?
M: Wavelet spectrum analysis of sunspots and TSI data series
R: Identification of stationary TSI periods from 11 to 500 years
R: The sun TSI variability, is controlled by the four large planets
R: Deterministic TSI simulation model from 1000 A.D to 2100
R: Computed new Maunder/Dalton TSI solar minimum from 2040-60

2014-2017: Global climate variability model

Q: Is there stationary global temperature periods?
M: Wavelet spectrum analysis of global data series
R: Global temperature variability is controlled solar-lunar periods from 11 to 2000 years
R: We may expect a colder climate to a minimum in 2090

2. SEAROOM MODELING

1995-2009: Modelling the Barents Sea eco dynamics
Q: Is there deterministic periods in the Barents Sea ecosystem?
M: Wavelet spectrum analysis and cybernetic modeling
R: The Barents Sea eco system is adapted to the 18.6-year lunar nodal tide by resonance in lifecycles.

2013-2016: Optimum Seafarm management
Q: Is there a optimum position and optimum production in a set of fish farms?
M: Agent based modeling to forecast the risk of virus between fish farms?
M: Agent based methods to optimize position and production.
R: Agent-based simulation, under investigation

Scientific, academic and artistic work

A selection of recent journal publications, artistic productions, books, including book and report excerpts. See all publications in the database

Journal publications

Yndestad, Harald; Solheim, Jan Erik. (2017) The influence of solar system oscillation on the variability of the total solar irradiance. New Astronomy. vol. 51.
Alaliyat, Saleh Abdel-Afou; Yndestad, Harald. (2015) An agent-based model to simulate contagious disease dynamics in fish populations. International journal of simulation. Systems, Science and Technology. vol. 16 (3).
Stene, Anne; Viljugrein, Hildegunn; Yndestad, Harald; Tavornpanich, Saraya; Skjerve, Eystein. (2014) Transmission dynamics of pancreas disease (PD) in a Norwegian fjord: Aspects of water transport, contact networks and infection pressure among salmon farms. Journal of Fish Diseases. vol. 37 (2).
Yndestad, Harald. (2009) The influence of long tides on ecosystem dynamics in the Barents Sea. Deep-sea research. Part II, Topical studies in oceanography. vol. 56 (21-22).
Yndestad, Harald; Turrell, William R; Ozhigin, Vladimir. (2008) Lunar nodal tide effects on variability of sea level, temperature, and salinity in the Faroe-Shetland Channel and the Barents Sea. Deep Sea Research Part I: Oceanographic Research Papers. vol. 55 (10).
Yndestad, Harald. (2006) The influence of the lunar nodal cycle on Arctic climate. ICES Journal of Marine Science. vol. 63.
Yndestad, Harald. (2004) The cause of Barents Sea biomass dynamics. Journal of Marine Systems. vol. 44 (1-2).
Yndestad, Harald. (2003) The code of the long-term biomass cycles in the Barents Sea. ICES Journal of Marine Science. vol. 60.
Yndestad, Harald; Stene, Anne. (2002) Systems Dynamics of Barents Sea Capelin. ICES Journal of Marine Science. vol. 59.
Yndestad, Harald. (2001) Earth nutation influence on Northeast Arctic management. ICES Journal of Marine Science. vol. 58.
Yndestad, Harald. (1999) Earth nutation influence on system dynamics of Northeast Arctic cod. ICES Journal of Marine Science. vol. 56.
Yndestad, Harald. (1999) Earth nutation influence on temperature regime of the Barents Sea. ICES Journal of Marine Science. vol. 56.

Books

Strand, Øivind; Nesset, Erik; Yndestad, Harald. (2015) Fragmentering eller mobilisering? : regional utvikling i Nordvest : Fjordantologien 2014. Forlag1. 2015. ISBN 978-82-8285-087-2.
Yndestad, Harald. (2013) Quality modeling using general system theory. Forlag1. 2013. ISBN 978-82-8285-078-0.
Yndestad, Harald. (2005) Skandinavisk fagkonferanse om Den Automatiske fabrikk. Springer Publishing Company. 2005. ISBN 0-387-24167-1.
Yndestad, Harald. (1997) System Modeling of ITEM. Re-engeenering of educational processes. 1997. ISBN 0 412 79970 7.
Yndestad, Harald; Fung, Alex; Ledesma, Jenilyn. (1994) THE MANAGEMENT OF E-LEARNING. Springer. 1994. ISBN 9780749471668.
Yndestad, Harald. (1980) Image enhancement in Real Time. Lund University Open Access. 1980. ISBN 91-44-17191-9.

Part of book/report

Cao, Yanran; Stene, Anne; Yndestad, Harald; Kommisrud, Elisabeth. (2016) Impact of Brominated Flame Retardants on Embryo Development of Atlantic Cod (Gadus Morhua) during Early Life Stages. OCEANS 2016 Shanghai - MTS/IEEE.
Alaliyat, Saleh Abdel-Afou; Yndestad, Harald. (2015) An Aqua Agent-Based Model to Simulate Fish Disease Dynamics with Reference to Norwegian Aquaculture. Proceedings of the 11th International Conference on Innovations in Information Technology (IIT'15).