RS
Member Since 2010
Ron Shaar
Associate Professor, Hebrew University of Jerusalem
Professional Experience
Hebrew University of Jerusalem
Associate Professor
2020 - Present
Education
Doctorate
2011
Honors & Awards
William Gilbert Award
Received December 2016
Ron Shaar will receive the 2016 William Gilbert Award at the 2016 American Geophysical Union Fall Meeting, to be held 12–16 December in San Francisco, Calif. The award recognizes outstanding and unselfish work in magnetism of Earth materials and of t...
Ron Shaar will receive the 2016 William Gilbert Award at the 2016 American Geophysical Union Fall Meeting, to be held 12–16 December in San Francisco, Calif. The award recognizes outstanding and unselfish work in magnetism of Earth materials and of the Earth and planets.  
Citation

It is my privilege to introduce Ron Shaar as the 2016 recipient of the William Gilbert award, in recognition of his important contributions to the study of geomagnetic paleointensity.

Quantifying the magnetic field strength over the Earth’s surface and through geologic time is one of the grand challenges in our field. Together with his advisors, Ron has developed important and innovative approaches, including novel selection of research materials, such as archeo-metallurgical slags. The results have been remarkable, showing very large and rapid changes in geomagnetic field strength on several occasions. These “Levantine spikes” appear to be robust features, and other research groups, inspired by Ron’s results, have now found equivalent features in other localities. These observations have major implications for geodynamo processes, and the repercussions are just beginning to be felt.

Ron has also done excellent fundamental research on the micromagnetic structures in these materials and on the mechanisms of remanence acquisition and stability. His study of the archeological slag using magnetic force microscopy was comprehensive and adept, integrating the observed magnetic microstructures with previous micromagnetic modeling results and with bulk-sample properties including hysteresis and anisotropy, to obtain a deep understanding of how these materials acquire and retain remanence, and how they “remember” the strength of the field in which they cooled.

Ron has also demonstrated leadership and service to the GPE research community through the development and distribution of well-designed open-source cross-platform software for analyzing paleointensity data. The Thellier_GUI software provides a rational, objective, and consistent basis for estimating the paleofield strength and for quantifying the uncertainty in that estimate, helping us all to get the most out of our experimental data.

I believe that Ron Shaar is an outstanding young scientist, an emerging leader in our field, and a superb choice for the 2016 William Gilbert Award.

—Mike Jackson, IRM, Minneapolis, Minn.

Response
I am deeply honored to receive this award and I thank the nominators, the committee, and Mike Jackson for his kind citation. When I first visited the IRM as a graduate student the first thing I saw was Mike’s smile expressing something like “hey, you came to the right place. It’s going to be fun.” This is exactly what I felt then and what I feel now. My path toward a career in paleomagnetism was not a straight line. Ten years ago I was an electrical engineer looking for some outdoor geological adventures more as a hobby than a career. After my doctoral advisors Hagai Ron, Amotz Agnon and Ronit Kessel from the Hebrew University in Jerusalem introduced me to paleomagetism I realized that this unique field of research is the best the scientific world can give. I am proud and grateful for being part of our incredible Geomagetism and Paleomagnetism community. The more I get to know the people who shape and form it I realize how fortunate I am to be surrounded by such inspiring supportive and generous scientists. I can name here only few senior colleagues that I had the great privilege to learn from: Jeff Gee, Cathy Constable, Mike Jackson, Josh Feinberg, and Joe Kirschvink. Thanks for each one of you. I will forever be grateful to my scientific parents Late Hagai Ron and Lisa Tauxe, who paved a path for me to follow with endless support and guidance. Finally, I owe a very special debt to Lisa Tauxe, my ultimate role model for uncompromising excellence and leadership and the kindest human beings I have ever met. It is a wonderful thing to start my new position at the Hebrew University of Jerusalem with this early career award. Thank you. —Ron Shaar, Hebrew University of Jerusalem, Jerusalem, Israel
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Publications
Geomagnetic Field Intensity During the First Millennium BCE From Royal Judean Storage Jars: Constrai...

The rich and extensively studied archaeological record of the Near East provides an opportunity to develop a comprehensive archaeomagnetic dataset ...

May 13, 2024
AGU Abstracts
Speleothem magnetism in small amounts: Using previously collected speleothem powders for magnetic measurements
ENVIRONMENTAL MAGNETISM II POSTER
geomagnetism, paleomagnetism and electromagnetism | 14 december 2023
Plinio Jaqueto, Joshua M. Feinberg, Yuval Burstyn,...
Geochemical records derived from speleothems offer important insights into changes occurring at Earth's surface through time. Precise U-Th dating meth...
View Abstract
Bayesian archaeomagnetic dating in the Bronze and Iron Ages based on the Levantine archaeomagnetic curve (LAC)
GEOPHYSICAL TECHNIQUES APPLIED IN (GEO-)ARCHAEOLOGY: FROM PROSPECTION TO ARCHAEOMAGNETISM AND PALEOENVIRONMENTAL RESEARCH III ORAL
near surface geophysics | 16 december 2022
Ron Shaar, Yves Gallet, Yoav Vaknin, Erez Ben-Yose...
Developing methods for determining the age of archaeological materials is a major challenge in archaeological sciences. Here we demonstrate the applic...
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New insights on geomagnetic spikes and secular variation rates from the Levantine Archaeomagnetic Curve (LAC) during the era of the Iron Age high field anomaly
GEOMAGNETIC FIELD BEHAVIOR ACROSS ALL TIMESCALES III ORAL
geomagnetism, paleomagnetism and electromagnetism | 13 december 2022
Ron Shaar, Yves Gallet, Yoav Vaknin, Erez Hassul, ...
Our understanding of fast geomagnetic secular variations on sub-centennial timescales is mostly limited to the era of direct instrumental measurements...
View Abstract

Check out all of Ron Shaar’s AGU Research!
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