Spiros Pagiatakis is Professor of Geodesy and licensed Professional Engineer (PEng) in Ontario. He was the inaugural Associate Dean Research and Graduate Studies at the Lassonde School of Engineering (2013-2017), he has served as President of the Canadian Geophysical Union (CGU), and as Chair of Sub-Commission "Earth Tides" of the Int'l Association of Geodesy. He is Fellow of the International Association of Geodesy (IAG) and member of many national and international scientific, professional, and advisory committees and study groups.
He holds an undergraduate degree in Rural and Surveying Engineering from the National Technical University of Athens, Greece, and MScE and PhD in Geodesy and Geodynamics from the University of New Brunswick, in Fredericton.
Spiros has decades of experience as Engineering consultant to Canadian and international consortia and governments, and private industry. From 1993-2001 he was research scientist with the Federal Department of Natural Resources Canada in Ottawa. He held various positions as research scientist, Head of research teams, Chief of Gravity Section and A/Director of the Canadian Geodetic Survey, Earth Sciences Sector of NRCan before he made his move to academia.
Research Interests
Spiros' research interests are in the dynamics of the Earth system to global and regional/local scales, as observed from terrestrial and space platforms. In particular, he is interested in the determination of the gravity field of the Earth; sea level variations; studies of the Earth's atmosphere using GNSS/LEO occultations; space gravity missions and ionospheric dynamics; glacial isostatic adjustment; and data analytics. His research has been funded by the Natural Sciences and Engineering Research Council of Canada (NSERC), GEOIDE National Centre of Excellence, CMC - Carbon Management Canada National Centre of Excellence, Canada Foundation for Innovation (CFI), Ontario Innovation Trust (OIT), Natural Resources Canada (NRCan) and York University.
Teaching
Spiros has a strong interest in developing innovative methods of teaching in a virtual classroom environment and in blended course delivery to university students and engineering professionals. He has led a four year project in collaboration with the Association of the Ontario Land Surveyors to develop and implement a systematic approach to competency-based assessment of the internationally educated land surveyors; the project was funded by the Ontario Ministry of Citizenship and Immigration. Spiros has taught many courses of diverse content at the undergraduate and graduate level, and has given many invited guest lectures in Canada and abroad.
Featured Publications
Peidou, A., and S.D. Pagiatakis (2020). Stripe mystery in GRACE geopotential models revealed. Geophysical Research Letters: 47(e2019GL085497). doi: 10.1029/2019GL085497.
Peidou, A., and S.D. Pagiatakis (2019). Gravity Gradiometry with GRACE Follow-on Space Mission: Unprecedented new opportunities for the Geosciences. Journal of Geophysical Research: Solid Earth. 124(8). doi: 10.1029/2018JB016382.
Ghaderpour, E., and S.D. Pagiatakis (2019). LSWAVE: a MATLAB software for the least-squares wavelet and cross-wavelet analyses. GPS Solutions. 23(50). doi: 10.1007/s10291-019-0841-3.
Ghaderpour, E., A.B. Abbes, M. Rhif, S.D. Pagiatakis, and I.R. Farah (2019). Non-Stationary and Unequally Spaced NDVI Time Series Analyses by the LSWAVE Software. International Journal of Remote Sensing. 41(6): 2374-2390. doi: 10.1080/01431161.2019.1688419.
El-Diasty, M., S. Al-Harbi, S.D. Pagiatakis (2019). Development of Saudi continuous chart datum: Arabian Gulf case study. Geomatics, Natural Hazards and Risk. 10(1): 1738-1749, doi: 10.1080/19475705.2019.1614682.
Ghaderpour, E., Ince, E.S., S.D. Pagiatakis (2018). Least-squares cross-wavelet analysis and its applications in geophysical time series. Journal of Geodesy. 92(10): 1223-1236. doi: 10.1007/s00190-018-1156-9.
M. El-Diasty, S. Al-Harbi, S.D. Pagiatakis (2018). Hybrid Harmonic Analysis and Wavelet Network Model for Sea Water Level Prediction. Journal of Applied Ocean Research. 70: 14-21. doi: 10.1016/j.apor.2017.11.007.
Peidou, A., G. Fotopoulos and S.D. Pagiatakis (2017). On the feasibility of using satellite gravity observations for detecting large scale solid mass transfer events. Journal of Geodesy. 92(5): 517-528. doi: 10.1007/s00190-017-1078-y.
Ince, E.S., and S.D. Pagiatakis (2017). GOCE Gradiometer measurements response to ionospheric Dynamics. Journal of Geophysical Research, Space Physics. 122(10): 10, 712-710,726. doi:10.1002/2017JA023890.
Ghaderpour, E., and S.D. Pagiatakis, (2017). Least-squares wavelet analysis of unequally spaced and non-stationary time series and its applications. Mathematical Geosciences. 49(7): 819-844. doi: 10.1007/s11004-017-9691-0.
Ince, E.S., and S.D. Pagiatakis (2016). Effects of Space Weather on the GOCE Electrostatic Gravity Gradiometer Measurements. Journal of Geodesy. 90(12): 1389-1403. doi: 10.1007/s00190-016-0931-8.
Vergados, P., and S. D. Pagiatakis (2011). Latitudinal, solar, and vertical variability of higher-order ionospheric effects on atmospheric parameter retrievals from radio occultation measurements, Journal of Geophysical Research. 116: A09312. doi: 10.1029/2011JA016573.
El-Diasty, M., and S.D. Pagiatakis, (2010). A Frequency-Dependent Efficient INS/GPS Impulse Response Model for Bridging GPS Outages. Journal of Navigation. 63(4): 627-643. doi:10.1017/S0373463310000226.
Abd El-Gelil, M., and S.D. Pagiatakis (2009). Least squares Self-Coherence for sub-nGal Signal Detection in the Superconducting Gravimeter Records. Journal of Geodynamics. 48: 310-315. doi:10.1016/j.jog.2009.09.018.
Pagiatakis, S.D., and P. Salib, (2003). Historical Relative Gravity Observations and the Time Rate of Change of Gravity due to Postglacial Rebound and Other Tectonic Movements in Canada. Journal of Geophysical Research. 108(B9): 2406. doi: 10.1029/2001JB001676.
Current Students
Myrto Tzamali, MSc, Dipl. Eng.
PhD Candidate
Space weather effects on Low Earth Orbiters: Integrating GRACE-FO and SWARM space missions.
Myrto received her MSc degree in Applied Mechanics, in 2018, from the National Technical University of Athens in Greece. While attending her MSc program, she was a research assistant at the Structural Mechanics Laboratory. Her research interests include analysis on the mechanical behavior of composite materials, the mechanics of dislocations and nonlinear dynamical systems. She obtained her bachelor's degree in Rural and Surveying Engineering from National Technical University of Athens, in 2016.
Nikeet Pandit
Undergraduate Research Intern
Gravity Space Missions Data Processing and Analysis
Past Students
Master of Science
2015-2017
Mr. Patrick Lasagna, (ESS)
Geoid Modelling in the Sultanate of Oman.
2014-2017
Mr. Franck Kapoko, (ESS)
Time rate of change of gravity in North America and Greenland due to post-glacial rebound and other tectonic movements.
2011-2013
Mr. Ignat Girin, (ESS)
Development of a multi-projection approach for global web map visualization.
2006-2009
Ms. Shu Du, (ESS)
Determination of Sea Surface Topography Using Tide Gauge and Atmospheric Data.
2004-2006
Mr. Ibraheem Ali, (ESS)
A globally consistent and dynamic Canadian gravity reference frame for a modern heighting system and other applications.
Doctoral
2016-2020
Dr. Athina Peidou, (ESS)
Analyzing GRACE space gravity missions for deriving gravitational gradients and recovering stripe-free gravity field models.
2013-2018
Dr. Ebrahim Ghaderpour, (ESS)
Least-Squares Wavelet Analysis and its Applications in Geodesy.
2012-2016
Dr. Sinem Ince, (ESS)
GOCE gradiometer measurement disturbances and their modelling by means of ionospheric dynamics.
2013-2015
Dr. Jerusha Lederman, (ESS)
Dynamics in the Anvil Outflow of Tropical Convection.
2006-2011
Dr. Panagiotis Vergados, (PHAS)
Second-order ionospheric effects on satellite radio occultation observations and their impact on atmospheric studies.
2003-2010
Dr. Mohammed El-Diasty, (ESS)
Development of a MEMS-based INS/GPS Vessel Navigation System for Marine Applications.
2002-2010
Dr. Mahmoud Abd El-Gelil, (ESS)
Superconducting Gravimetry and Earth Dynamics.
2002-2010
Dr. Ioannis Haranas, (PHAS)
Orbital Perturbations of low orbiters in a dusty Martian atmosphere.
2000-2002
Dr Jianliang Huang, (University of New Brunswick)
Computational Methods for the Discrete Downward Continuation of the Earth Gravity and Effects of Lateral Topographical Mass Density Variation on Gravity and the Geoid.
Post-Doctoral and Visiting Scholars
2014
Dr. Xiaodong Chen, Associate Professor
State Key Laboratory of Geodesy and Earth's Dynamics, Institute of Geodesy and Geophysics, Chinese Academy of Sciences.
2014
Mr. David Avalos, Visiting Scientist
Head of the Geoid Department, Instituto Nacional de Estadistica y Geografia, (INEGI), Mexico.
2014
Prof. M. El-Diasty, Visiting Professor
King Abdulaziz University, Saudi Arabia.
2014
Prof. M. Abd El-Gelil, Visiting Professor
Sultan Qaboos University, Oman.
2010-2012
Ms. Shu Du, MSc.
Research Assistant.
2010-2011
Dr. Mohammed El-Diasty
Post-Doctoral Fellow
2002-2003
Dr. Hui Yin, Visiting Scholar
Professor, School of Geodesy and Geomatics Engineering, Wuhan University, PRC.
2001-2002
Dr. Joseph Henton
NSERC post-doctoral fellow.
Where are my students now...
Panagiotis Vergados, PhD.
Research Scientist, NASA/Jet Propulsion Laboratory, Pasadena, CA.
Interests: Radio occultations, atmospheric dynamics, remote sensing.
My approach to teaching, training and mentorship is characterised by a variety of complementary approaches. Whereas I take a lot of time to meet with each of my students individually and as a team, I strongly encourage them to take risks, work together, exchange ideas and experiences and learn from each other. Presenting at conferences is one of the highest priorities for dissemination of knowledge and development of communication skills. My graduate students take ownership, pride and responsibility of their achievements as first AND corresponding authors in all publications. I have found that engaging undergrad students in research has many benefits: exposes bright minds to research in early stages; and provides support to grad students; gives my grad students supervision opportunities.
My PhD students and I explore new research areas and we publish in a variety of prestigious journals. I step outside my area of expertise and engage my students to the fullest; we always take risks with new challenges. Results are original and seminal, albeit it takes longer to produce results. From my PhD graduates, four hold academic positions, one is Research Scientist at NASA/JPL, one is Director and Research Scientist at GFZ (Germany), one is Post Doctoral Scholar at NASA/JPL, one is senior research scientist with the Canadian Federal Government, and all my MSc graduates hold leading positions in the private and government sectors. Since 2006, my students have received 12 prestigious best student paper awards and, in some cases, multiple awards in different categories.
Undergraduate Education
I have been a leader in the development of the undergraduate and graduate programs and curricula since my appointment at York University in 2001. As a teacher, I have taught four graduate and 12 undergraduate courses multiple times that amount to over 50 undergraduate and 10 graduate course offerings at the Department of Earth and Space Science and Engineering.
Since 2011, I have been leading the development of a prototype classroom to deliver courses remotely in blended form and in a flip-mode approach. In 2014-15 academic year, I successfully taught two undergraduate courses using the new classroom/teaching concept. In 2016, I led the development of Lassonde's "future classroom" or the "Virtual Classroom" with support from the Lassonde School and the University.
More on the Virtual Classroom Environment can be found here:
All undergraduate courses listed below (except EATS4020) were designed and taught for the first time in the new engineering programs at York and in particular, in Geomatics Engineering. The design included among others: a) new course proposals, b) course outline and daily lecture schedule development, c) lab exercises and assignment design, d) equipment and commercial software infrastructure, e) delivering of course lectures.
Undergraduate Courses
✓ ESSE4620: ENG1000: Engineering Design I, fall terms of 2001, 2002, 2010.
✓ ENG2110: Geomatics and Space Engineering, fall terms of 2002, 2003, 2004, and 2005.
✓ ESSE2620: Fundamentals of Surveying, winter terms of 2003, 2004, 2005, and 2007 (coordinator).
✓ ESSE2630: Field Surveys, summer terms of 2003, 2004, 2005 (coord.), 2006 (coord.), and 2013.
✓ ESSE3610: Geodetic Concepts, fall terms of 2003, 2004, 2005, 2006, 2012, 2019, and 2020.
✓ ENG3120: Adjustment Calculus, fall terms of 2013, 2014, 2015.
✓ ENG3130: Analysis of Overdetermined Systems, winter terms of 2004-2006, 2008-2015.
✓ ENG3140: Geodetic Surveys, winter terms of 2004, 2005 (coordinator), and 2006 (coordinator).
✓ ENG3160: Advanced Field Surveys, summer term of 2004 (coordinator), and 2005 (coordinator).
✓ ESSE4620: Physical and Space Geodesy, winter terms of 2005-2007, 2009-2012, 2016, 2017, 2019, 2020, 2021.
✓ ESSE4020: Time Series and Spectral Analysis, fall terms of 2001, 2002, and 2006.
✓ ESSE4170: Survey Law (coordinator) winter term of 2007, 2009, 2010.
Books / Book Chapters/Journal Special Issues
Pagiatakis, S.D. (Managing Guest Editor) (2014). "Understand the Earth". Journal of Geodynamics. Special Issue, Vol. 80, pp. 1-80 (October 2014).
Pagiatakis, S.D., (2013). Geomatics Engineering. Encyclopedia of Environmetrics Second Edition, A.-H. El-Shaarawi and W. Piegorsch (eds). John Wiley & Sons Ltd, Chichester, UK, pp. 1183-1186. doi: 10.1002/9780470057339.vnn121.
Yin, H. and S.D. Pagiatakis, (2008). English-Chinese / Chinese-English Vocabulary: Handbook for Geomatics Engineering. Wuhan University Press, Wuhan, PRC, p.596.
Publications in Refereed Journals (Recent)
Peidou, A., and S.D. Pagiatakis (2020). Stripe mystery in GRACE geopotential models revealed. Geophysical Research Letters. 47(e2019GL085497). doi: 10.1029/2019GL085497.
Ghaderpour, E., A.B. Abbes, M. Rhif, S.D. Pagiatakis, and I.R. Farah (2019). Non-Stationary and Unequally Spaced NDVI Time Series Analyses by the LSWAVE Software. International Journal of Remote Sensing. 41(6): 2374-2390. doi: 10.1080/01431161.2019.1688419.
Peidou, A., S.D. Pagiatakis (2019). Gravity Gradiometry with GRACE Follow-on Space Mission: Unprecedented new opportunities for the Geosciences. Journal of Geophysical Research: Solid Earth. 124(8): 9130-9147. doi: 10.1029/2018JB016382.
El-Diasty, M., S. Al-Harbi, S.D. Pagiatakis (2019). Development of Saudi continuous chart datum: Arabian Gulf case study. Geomatics, Natural Hazards and Risk, 10(1): 1738-1749, doi: 10.1080/19475705.2019.1614682.
Ghaderpour, E., S.D. Pagiatakis (2019). LSWAVE: a MATLAB software for the least-squares wavelet and cross-wavelet analyses. GPS Solutions. 23(50). doi: 10.1007/s10291-019-0841-3.
Ghaderpour, E., Ince, E.S., and S.D. Pagiatakis (2018). Least-squares cross-wavelet analysis and its applications in geophysical time series. Journal of Geodesy, Vol. 92, No. 10: 1223-1236. doi: 10.1007/s00190-018-1156-9.
M. El-Diasty, S. Al-Harbi, S.D. Pagiatakis (2018). Hybrid Harmonic Analysis and Wavelet Network Model for Sea Water Level Prediction. Journal of Applied Ocean Research, Vol. 70, pp. 14-21. doi: 10.1016/j.apor.2017.11.007.
Peidou, A., G. Fotopoulos and S. Pagiatakis (2017). On the feasibility of using satellite gravity observations for detecting large scale solid mass transfer events. Journal of Geodesy, Vol. 92, No. 5, pp. 517-528. doi: 10.1007/s00190-017-1078-y.
Ince, E.S., and S.D. Pagiatakis (2017). GOCE Gradiometer measurements response to ionospheric Dynamics. Journal of Geophysical Research, Space Physics. Vol. 122, No. 10, pp. 10, 712-10, 726. doi:10.1002/2017JA023890.
Ghaderpour, E., and S.D. Pagiatakis, (2017). Least-squares wavelet analysis of unequally spaced and non-stationary time series and its applications. Mathematical Geosciences. Vol. 49, No. 7, pp. 819-844. doi: 10.1007/s11004-017-9691-0.
Ince, E.S., and S.D. Pagiatakis (2016). Effects of Space Weather on the GOCE Electrostatic Gravity Gradiometer Measurements, Journal of Geodesy, Vol. 90, No. 12, pp 1389-1403. doi: 10. 1007/s00190-016-0931-8.
Abd El-Gelil, M., S.D. Pagiatakis, and A. El-Rabbany (2012). On the Potential of Least Squares Response Method for Calibration of the Superconducting Gravimeter. International Journal of Geophysics, Vol. 2012 (2012), Article ID 741729, 11 pages. doi:10.1155/2012/741729.
Haranas I., and S.D. Pagiatakis, (2012). Satellite orbit perturbations in a dusty Martian atmosphere. Acta Astronautica, Vol. 72, March-April 2012, pp. 27-37. doi:10.1016/j.actaastro.2011.09.005.
Vergados, P., and S. D. Pagiatakis (2011). Latitudinal, solar, and vertical variability of higher-order ionospheric effects on atmospheric parameter retrievals from radio occultation measurements, Journal of Geophysical Research, 116, A09312, doi: 10.1029/2011JA016573.
El-Diasty, M., and S.D. Pagiatakis, (2010). A Frequency-Dependent Efficient INS/GPS Impulse Response Model for Bridging GPS Outages. Journal of Navigation, 63 (4), pp 627-643. doi:10.1017/S0373463310000226.
Vergados, P., and S.D. Pagiatakis, (2010). First estimates of the second-order ionospheric effect on radio occultation observations. Journal of Geophysical Research., 115, A07317, doi:10.1029/2009JA015161.
Haranas, I., and S.D. Pagiatakis, (2010). Satellite motion in a non-singular gravitational potential. Astrophysics and Space Science 327 (1), pp. 83-89.
El- Diasty, M., and S.D. Pagiatakis, (2009). An Efficient INS/GPS Impulse Response Model for Bridging GPS Outages. Pro- ceedings of the IEEE, TIC-STH 2009: 2009 IEEE Toronto International Conference; Science and Technology for Humanity, art. no. 5444482, pp. 328-333. Ryerson University, Toronto, Ontario, Canada, September 26-27.
Abd El-Gelil, M., S.D. Pagiatakis, and A. El-Rabbany (2010). Normal Mode Detection and Splitting after the Sumatra- Andaman Earthquake. Journal of Geodynamics, 50 (2010) 49-56. doi:10.1016/j.jog.2009.09.018.Abd
Abd El-Gelil, M., and S.D. Pagiatakis (2009). Least squares Self-Coherence for sub-nGal Signal Detection in the Superconducting Gravimeter Records. Journal of Geodynamics, 48 (2009) 310-315. doi:10.1016/j.jog.2009.09.018.
El-Diasty, M., and S.D. Pagiatakis, (2009). A Rigorous Temperature-Dependent Stochastic Modelling and Testing for MEMS-Based Inertial Sensors Errors. Sensors, 9, pp. 8473-8489; doi:10.3390/s91108473 (Special Issue on "Modeling, Testing and Reliability Issues in MEMS Engineering"). Paper amongst the Top 20 Articles, in the Domain of Article 22291519, since its publication (2009).
Pagiatakis, S.D., S. Bisnath, C. Armenakis, and J.-G. Wang (2009). The Establishment of a Geomatics Engineering Program and its Challenges: the York University Case. Geomatica, Vol. 63, No. 2, pp. 97-108.
Vergados, P., and S.D. Pagiatakis, (2009). Sensitivity of atmospheric bending angles retrieved from COSMIC radio occultations in Doppler frequency shift and satellite velocity variations. Canadian Journal of Earth Sciences, Vol. 46(8), doi:10.1139/E09-010, pp. 597-610.
Pagiatakis, S.D., Ali, I.F., and P. Salib (2008). Homogenization of the Canadian gravity data to CGSN-2000 Canadian Gravity Reference Frame for accurate and globally consistent Canadian geoid model. Journal of Geodesy (accepted for publication).
El-Diasty, M., and S.D. Pagiatakis, (2008). Stochastic modelling of inertial navigation sensor errors. Technical Note, Journal of Global Positioning Systems, Vol. 7, No 2, pp. 170-182 (Invited contribution).
Abd El-Gelil, M., S.D. Pagiatakis, and A. El-Rabbany (2008). Frequency-dependent atmospheric pressure admittance of superconducting gravimeter records using least squares response method. Physics of the Earth and Planetary Interiors, Vol. 170, No.1-2 pp. 24-33.
Publications in Refereed Conference Proceedings (Recent/Selected)
Ince, E.S., and S.D. Pagiatakis (2015). "Effects of the Magnetic Field on the GOCE Level 1B Gradiometer Data over Magnetic Poles". ESA Special Publication. Vol. 728. Paper presented at the 5th International GOCE Workshop, Unesco-Paris, France, November, 24-28.
Ince, E.S., and S.D. Pagiatakis (2014). "Improvement of GOCE Level 1b Gradiometer Data Processing Over Magnetic Poles". CGU Elements, Vol. 32, No 2, pp.10-18. Paper presented at the CGU and CSSS Joint Scientific Congress, Banff, AB, Canada, May 4-7. Paper received Best Student Paper Award in all fields of Geophysics and Best Student Paper Award in Geodesy for scientific merit (refereed paper) and oral presentation.
Ince, E.S., and S.D. Pagiatakis (2013). "Spectral Characteristics of GOCE Level 1b Gradiometer Data". CGU Elements, Vol. 31, No 2, pp.45-49. Paper presented at the CMOS/CGU/CWRA Joint Scientific Congress, Saskatoon, SK, Canada, May 26-30. Paper received Best Student Paper Award in Geodesy for scientific merit (refereed paper) and oral presentation.
El- Diasty, M., and S.D. Pagiatakis, (2008). Development of a frequency response INS/GPS system model based on LSSA for bridging GPS outages. Proceedings of the 21st International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2008, pp. 28-34. September 16-19, 2008, Savannah, Georgia, USA.
Santos, M., R. Langley, R. Leandro, S.D. Pagiatakis, S. Bisnath, R. Santerre, M. Cocard, A. El-Rabbany, R. Landry H. Dragert, P. Heroux, J.P. Collins (2008). Next-generation algorithms for navigation, geodesy and Earth sciences under modernized Global Navigation Satellite Systems (GNSS). Proc. XXIV IUGG General Assembly, Perugia, Italy, 2-13 July 2007. IAG Symposia Vol. 133, M.G. Sideris (Ed.), Springer, pp. 817-824.
Selected Abstracts and Conference Presentations
Tzamali, E.M., and S.D Pagiatakis (2020). GRACE-FO and Swarm accelerometers: An optimal approach for processing non-gravitational acceleration measurements. American Geophysical Union, Fall meeting 2020, Dec. 1-17, 2020. On-line Everywhere.
Peidou, A., and S.D. Pagiatakis (2019). On the elimination of stripes on GRACE geopotential models using Moiré interference fringes. 27th General Assembly of the I'ntl Union of Geodesy and Geophysics (IUGG), July 8-18, 2019, Montreal, QC. Canada.
Ghaderpour, E., E.S. Ince, and S.D. Pagiatakis (2018). Least-squares wavelet analysis and its applications in geodetic and geophysical time series analyses. European Geosciences Union (EGU) General Assembly, 8–13 April 2018, Vienna, Austria.
Kapoko F., and S.D. Pagiatakis (2018). Time rate of change of gravity in North America and Greenland due to Glacial Isostatic Adjustment and other tectonic movements. European Geosciences Union (EGU) General Assembly, 8–13 April 2018, Vienna, Austria.
Peidou, A. and S.D. Pagiatakis (2018). GRACE-FO in differential mode. 2018 Joint Meeting of CGU/CSSS/CIG/ES- SSA/CSFAM, June 10-14, 2018; Niagara Falls, Ontario. Paper received Best Student Paper Award in Geodesy for scientific merit (refereed paper) and oral presentation.
Ghaderpour E, Liao W, Lamoureux M, S. Pagiatakis (2017). Anti-leakage least-squares spectral analysis for seismic data regularization and random noise attenuation. Geoconvention, Calgary, AB, May 2017.
Ince, E.S., S.D. Pagiatakis and Christoph Forste (2017). Investigations on the GOCE EGG measurement errors over the Northern Polar Region using ionospheric proxies. EGU General Assembly, Vienna, Austria, 23-28 April 2017.
Ince, E.S., and S.D. Pagiatakis (2014). "Effects of the Magnetic Field on the GOCE Level 1b Gradiometer Data Over Magnetic Poles", The 5th International GOCE Workshop, November 24-28, Unesco-Paris, France.
Ghaderpour, E., and S.D. Pagiatakis, (2015). "Least Squares Wavelet Analysis". Joint AGU/CGU meeting, Montreal, PQ, May 3-7. Paper received Best Student paper award in Geodesy for scientific merit (refereed paper) and oral presentation.
Ince, S.E., and S.D. Pagiatakis (2014). "Filtering Process and Weighted Spectral Analyses of GOCE Level 1b Gradiometer Data". CGU Elements, V. 32, No 2. CGU/CSSS/Mantle Convection Workshop. Joint Annual Meeting, Banff, Alberta, May 4-7. Paper received Best CGU Student Paper Award and Best Student paper in Geodesy for scientific merit (refereed paper) and oral presentation.
Ince, S.E., and S.D. Pagiatakis (2013). "Spectral Characteristics of GOCE Level 1b Gradiometer Data". CGU Elements, V. 31, No 2, pp.45-49. CMOS/CGU/CWRA Joint Scientific Congress, Saskatoon, SK, Canada; May, 26-30. Paper received Best Student Paper Award in Geodesy for scientific merit (refereed paper) and oral presentation
Pagiatakis, S.D. and M. El-Diasty (2012). "Improved g-dot signature in Canada by terrestrial gravity inversion". Invited Oral Presentation , AGU Fall Meeting, 03-07 December, 2012, San Francisco, CA., USA.
Vergados, P. and S.D. Pagiatakis, (2011). Assessing the effect of gravity anomalies on GPS/RO-derived temperatures: results from the GRACE Mission. Joint CGU/CSFAM meeting, Banff, Alberta, Canada, 15-18 May, 2011. Paper received Best Student Paper Award in Geodesy and Geodynamics ; (refereed paper and oral presentation).
Vergados, P. and S.D. Pagiatakis, (2010). A new technique in retrieving total electron content and second-order ionospheric delays in radio occultation experiments using GPS. 3rd Joint CMOS/CGU Congress, Ottawa, Ontario, Canada, May31-June4, 2010. Paper received two prestigious awards: a) CGU Best Student Paper Award and b) Best Student Paper Award in Geodesy and Geodynamics ; (refereed paper and oral presentation)
El-Diasty, M., and S.D. Pagiatakis, (2010). Development of a MEMS INS/GPS vessel navigation system for maritime navigation. 3rd Joint CMOS/CGU Congress, Ottawa, Ontario, Canada, May31-June4, 2010.
Vergados, P., S.D. Pagiatakis, and M.G. Shepherd, (2009). Studying the effect of GPS radio occultation bending angle variations on the retrieval process of dry atmospheric temperature profiles: A sensitivity study. UCAR, 4th FORMOSAT- 3/COSMIC Workshop; 27-29 October 2009, Boulder, Colorado U.S.A. Poster received Best Student Poster Competition 3rd place
Haranas, I., and S.D. Pagiatakis (2009). Satellite orbit perturbations in a dusty Martian atmosphere. AGU/CGU Joint Assembly, "The meeting of the Americas" 24-27 May 2009, Toronto, Ontario, Canada.
Pagiatakis, S.D., and T. Eadie, (2008). Frequency-domain filtering of GRACE data for the detection of geophysical signals. IAG International Symposium on Gravity, Geoid & Earth Observation, 23-27 June 2008, Chania, Greece.
Vergados, P., S.D. Pagiatakis, (2008). Bending angle retrieval algorithms using COSMIC mission observations. CGU Annual Conference, Banff, AB, 11-14 May, 2008. Paper received Best Student Paper Award in Geodesy (first author; refereed paper and oral presentation).
Abd El-Gelil, M., S.D. Pagiatakis and A. El-Rabbany (2007). On the potential of least-squares self-coherency spectrum to recover low-frequency seismic normal modes: Detection and Splitting. Joint CMOS/CGU Annual Meeting, St. John's, Newfoundland; May, 29 - June 1, 2007. Paper received the Chevron Canada Outstanding Student Paper in Seismology (first author).
Haranas, I., and S.D. Pagiatakis, (2007). Mars Dust Storms and their effect on low orbiters. 2nd International Mars Workshop, Trento, Italy, 19-24 June, 2007.
Resources
✔
LSWAVE
The MATLAB software for the least-squares wavelet and cross-wavelet analyses (open-access) is available at:
Reference: Ghaderpour, E., S.D. Pagiatakis, (2019). LSWAVE: a MATLAB software for the least- squares wavelet and cross-wavelet analyses. GPS Solutions 23:50. https://doi.org/10.1007/s10291-019-0841-3
✔
LSSA
Least Squares Spectral Analysis Software (Fortran) providing LS spectra, PSD and dB with all statistical tests is available from the author:
Reference: Pagiatakis, S.D., (1999). Stochastic Significance of Peaks in the Least-Squares Spectrum. Journal of Geodesy Vol. 73, pp. 67-78.
Featured Awards, Distinctions and Recognitions
2019-pres: Member of the Executive Committee of the Dahdaleh Institute of Global Health Research (York Institutional ORU).
2017-2019: Chair, Scientific Programming Committee, International Union of Geodesy and Geophysics, General Assembly; Montreal, 2019.
2018: Lassonde Innovation Award-Graduate Mentorship Award. This Faculty award recognizes the best of graduate mentors and their dedication (over the last three years) to graduate education and student success.
2013-2017: Inaugural Associate Dean, Research and Graduate Studies, Lassonde School of engineering
2015: Fellow, International Association of Geodesy (IAG)
2015: (8-9 June). External Reviewer of the Aerospace Engineering Department at Ryerson University
2013: (10-16 December). Invited by the Hellenic Quality Assurance Agency for Higher Education as external expert reviewer for the external evaluation of the Department of Civil Engineering, University of Patras, Greece.
2013: Received the "Canadian Geophysical Union Meritorious Service Award" for extraordinary and unselfish contributions to the operation and management of the Canadian Geophysical Union.
2012: (11-16 June). Invited by the Hellenic Quality Assurance Agency for Higher Education as external expert reviewer for the external evaluation of the Dept. of Geology, Aristotle University of Thessaloniki, Greece.
2010: (2-6 August). Invited by the Instituto Nacional de Estadistica y Geografia (INEGI) of Mexico, to develop and present one-week intensive course on "Geodetic Networks" for the establishment of the Mexican national reference frame.
2008: Invited by the Dept. of Geodesy and Geomatics Engineering (GGE), University of New Brunswick to give lectures for the graduate course "Quantitative Analysis," and a seminar entitled: "Superconducting Gravimetry and Earth Dynamics".
2006-2015: His graduate students (first authors) have received a total of 11 prestigious first student paper awards at scientific conferences for oral presentation and scientific merit.
2004-2012: York University Merit Awards (nine consecutive years) for combining a) professional contribution and standing, b) teaching and c) service to University.
2007-2009: Guest Professor, School of Geodesy and Geomatics, Wuhan University, Wuhan, P.R. of China.
2007: (June): Invited by the GEOIDE/NCE to teach at the 6th GEOIDE/NCE Summer School, Saint Mary's University, Halifax (NS). Title of the course: "Gravimetry, Earth sciences and climate change - Techniques and Applications."
1999: Natural Resources Canada Departmental Merit Award 1999, for exceptional achievements in collaboration and partnership, resulting in the engagement of researchers, academia, industry governmental and non-governmental parties in the GEOIDE National Centre of Excellence.
1999: Earth Sciences Sector Merit Award 1999, for exceptional job dedication and contribution to the creation of the GEOIDE National Centre of Excellence.
