Chronis Themistoklis

by / Thursday, 13 November 2014 / Published in people
chronis

Position: Associate Researcher

Contact Info

Institute: Oceanography
Address: 46,7 Km Athens – Sounio Avenue, Anavyssos
Email:themis@hcmr.gr
Tel: +30-2291076397
Telex:
Website: http://www.researchgate.net/profile/Themis_Chronis/ http://www.docstoc.com/profi

 

Dr. Themis Chronis received a B.Sc degree in Geology from the National University of Athens, a M.Eng in Environmental Engineering from the Stevens Institute (1998-2000) of Technology-U.S.A and Ph.D in Atmospheric Sciences-Hydrology, from the University of Connecticut-U.S.A (2000-2004). Dr. Chronis’ work has been awarded with 2 NASA fellowships (Graduate Fellowship 2001-2004 and Post-Doctoral program 2006-2008). His research interests and experience include: satellite retrieval of atmospheric/oceanic parameters, solar-terrestrial interactions, lightning climatology, and tropical climate dynamics. Since 2002 Dr. Chronis has published 22 papers in peer-reviewed scientific journals and 2 academic book-chapters while his work has been highlighted by several high-impact international scientific journals and public media (NASA, Bulletin of American Meteorological Society, Nature, Economist and so forth). Dr. Chronis is employed since 2008 at the Hellenic Center for Marine Research (www.hcmr.gr) as an associate researcher.

Dr. Chronis’ scientific research highlights can be summarized as follows: 1) the pioneering monitoring of the continuous lightning activity observed in the African Easterly waves and their role in the tropical cyclogenesis off of the West African coast 2) the documentation of observational evidence pertaining to solar-terrestrial links influencing the short and long-term tropospheric electrification. This work has been an invited as a featured paper in NASA’s “Sensing our Planet, 2010” 3) the development of testbed numerical experiments where lightning is used as the “on-off convective switch” in numerical weather prediction models 4) the documentation of possible relation between the 6.5-days Rossby stratospheric wave and the African lightning activity 5) the identification of a dominant climatological signature of the summer North Atlantic Oscillation over the eastern Mediterranean 6) the documentation of unique lightning properties as a function of sea surface salinity and cloud electrical capacitance that have never been reported in existing literature

Dr. Chronis’ fundamental approach to teaching encompasses a) multi-disciplinarity b) applicability (e.g. parallelism, hands-on practice when possible) and c) interactivity. Dr. Chronis comes form a diversified background that encompasses geology, oceanography, aqueous chemistry and atmospheric physics. The past years, Dr. Chronis has developed teaching methods that synergistically combine well-rounded scientific knowledge on Earth Sciences. His main practices promote the integration between complementary and apparently unrelated scientific fields (e.g. how would one relate mineralogy of the bedrock to the appearance of life on planet Earth?).

Nationality: Greek
Place of Birth: La Rochelle-France (Feb 5th, 1974)
Pre-College studies (1981-1991): French-Greek high-school (Lycee Leonin)
Status: Married
Contact Info: themis@ath.hcmr.gr, +30-6936131948 (mobile), +30-2291076397 (office), +30-2291076397
Web1: http://www.docstoc.com/profile/temakos
Web2: http://www.researchgate.net/profile/Themis_Chronis/

Affiliations
1991–1996: University of Athens, Department of Geology/Oceanography, Greece, [Bachelor’ s Degree] 1998–2000: Stevens Institute of Technology, Department of Environmental Engineering, U.S.A [Masters in Engineering] 2000–2004: University of Connecticut [UCONN], Department of Civil and Environmental Engineering, U.S.A [Doctor of Philosophy.] 2004–2006: UCONN, Department of Civil and Environmental Engineering, U.S.A [Post-doctoral Fellow] 2006 -2008: NASA-MSFC, U.S.A, Post-Doctoral Fellowship [Post-doctoral Fellow] 2008-present: Hellenic Center for Marine Research (HCMR), Department of Oceanography, Greece [Associate Researcher]

Awards
2000: Exploring Career Options in Engineering and Science [Stevens].
2001:NASA-Earth System Science Graduate Student Fellowship Award, Titled: “Continuous Thunderstorm Monitoring over Large Regions using Satellite Infrared Observations and Lightning Measurement from an Experimental Sferics Receiver Network”
2001: Award of Excellence in Research [UCONN].
2002: NASA-Group Achievement Award – Fourth Convection and Moisture Experiment [CAMEX 4] 2006: NASA-Post-Doctoral Fellowship Award MSFC/Global Hydrology Climate Center

Academic Book Chapters
1. Anagnostou, E and Chronis,T., [2004]: The worth of long range lightning observation on over land precipitation estimation, Book Chapter-Advances in Global Change, Kluwer Academic Publishing [http://www.wkap.nl/prod/s/AGLO]. 2. Pittman J., Chronis T., Robertson, F., and Miller, T., [2008]: Book Chapter-Electrification in Hurricanes: Implications for Water Vapor in the Tropical Tropopause Layer, Hurricanes and Climate Change, edited by J. B. Elsner and T. H. Jagger, Springer

Peer-Reviewed Publications in International Journals (papers published, accepted, in press and submitted):
1. Anagnostou, E.N., T. Chronis, and D.P. Lalas, [2002]: New Receiver Network Advances in Long-Range Lightning Monitoring, EOS-Transactions, Vol. 83, No. 50, 594-595.
2. Chronis T. and Anagnostou E., [2003]: Long Range Validation of the European Long Range Lightning Detection Network, J. Geophys. Res., Vol.108, No.D24, 4779.
3. Chronis T., Anagnostou E and Dinku T. [2004]: High frequency estimation of thunderstorms via Satellite Infrared and a long-range lightning network in Europe, Quarterly Royal Meteorological Society Vol.130 April 2004 Part B No. 599.
4. Papadopoulos, A., T. Chronis, and E. N. Anagnostou, [2005]: Using lightning to predict storm precipitation, Bulletin of the American Meteorological Society 86 [8], pp. 1057-1059.
5. Papadopoulos, A., T. Chronis, and E. N. Anagnostou, [2005]: Improving Convective Precipitation Forecasting Through Assimilation of Regional Lightning Measurements in a Mesoscale Model, Monthly Weather Review, Vol. 133, 1961–1977.
6. Chronis, T., and E.N. Anagnostou, [2006]: Evaluation of a Long-Range Lightning Detection Network with Receivers in Europe and Africa, IEEE Transaction on Geosciences and Remote Sensing Volume 44, Issue 6, pp.1504 – 1510.
7. Williams E., Boldi R., Bor J., Satori G., Price C., Greengurg E., Takashashi Y., Yamamoto K., Chronis T., Anagnostou E., Smith D., Lopez L., [2006]: Lightning flashes conductive to production and escape of gamma radiation to space, J. of Geophysical Research- Atmospheres VOL. 111, D16209, doi:10.1029/2005JD006447.
8. Chronis T., Williams E, Anagnostou E., [2006]: Evidence of tropical forcing of the 6.5 wave from lightning observations over Africa, J. Atmos. Sci., 64, 3717-3721.
9. Chronis T., Williams E, Anagnostou E., Walt Petersen, [2007]: Lightning as a precursor of tropical cyclogenesis, Eos Trans. AGU, 88(40), 397, 10.1029/2007EO400001.
10. Chronis T., Williams E, Anagnostou E., [2007]: Investigating possible links between African lightning and the 6.5 stratospheric wave, Bulletin of the American Meteorological Society 92 [9], pp. 256-258.
11.Chronis, T. G., S. J. Goodman, D. Cecil, D. Buechler, F. J. Robertson, J. Pittman, and R. J. Blakeslee, [2008], Global lightning activity from the ENSO perspective, Geophys. Res. Lett., 35, L19804, doi:10.1029/2008GL034321.
12. Hazelton, B. J., B. W. Grefenstette, D. M. Smith, J. R. Dwyer, X.-M. Shao, S. A. Cummer, T. Chronis, E. H. Lay, and R. H. Holzworth, [2009], Spectral dependence of terrestrial gamma- ray flashes on source distance, Geo. Res. Lett, Vol. 36, L01108, doi:10.1029/2008GL035906.
13.Chronis, T., [2009]: Investigating Possible Links between Incoming Cosmic Ray Fluxes and Lightning Activity over U.S., J. Climate, Vol.22, pp. 5748-5754.
14. Chronis T., [2009], Hydrological cycle in the Mediterranean Experiment, EOS Transactions AGU, Vol. 90, No. 46, doi:10.1029/2009EO460011
15.Chronis T., Papadopoulos, V., and Nikolopoulos, E., [2010], Nine years of hi-resolution, QuickScat observations over the Mediterranean, International Journal of Climatolog, doi: 10.1002/joc.2213 (online early release).
16.Chronis, T., Raitsos, D and Kassis, D., [2011], The summer North Atlantic Oscillation effect on eastern Mediterranean, Journal of Climate doi: 10.1175/2011JCLI3839.1
17.Papadopoulos, V., Bartzokas, A., Chronis,T., and Ferentinos G., [2011], Factors regulating the air-sea heat fluxes regime over the Aegean Sea, (Adv. Sci. Res., 6, 63-67, 2011 www.adv-sci- res.net/6/63/2011/, doi:10.5194/asr-6-63-2011)
18.Degu, M., Hossain, F., Niyogi, D., Pielke R., Shepherd, J., M, Voisin, N., and Chronis, T.,The influence of large dams on surrounding climate and precipitation patterns, [2011], Geophysical Research Letters, Vol. 38, L04405, 7 PP., 2011doi:10.1029/2010GL046482
19.Papadopoulos,, V,P., A. Bartzokas, T. Chronis, S. Ruiz, N. Zarokanellos and G.Ferentinos, [2011], Correlation between air-sea heat fluxes over the Aegean Sea and the total precipitable water over Europe and North Africa, doi: 10.1175/2011JCLI4197.1 (on line release, Journal of Climate)
20.Raitsos D.E., Hoteit I., Prihartato P.K., Chronis T., Triantafyllou G., Abualnaja Y., Red Sea warming; a climate driven abrupt change, Geophysical Research Letters, Vol. 38, L14601, 5 PP., 2011, doi:10.1029/2011GL047984
21.Velea, L., Chronis, T., Anagnostou, E., and Papadopolulos A., [2010], Comparative analysis of humidity characteristics for open sea and coastal areas in the Mediterranean, (accepted, Atmospheric Research).
22.Chronis T., [2011], Preliminary lightning observations over Greece (under review, JGR)

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