Lennart De Groot
Earth Sciences - Paleomagnetism
Utrecht University
Netherlands
Biography
The Earth’s magnetic field is generated in the liquid outer core of the Earth and is driven by both the rotation of the Earth and its slow but everlasting cooling. Since turbulent processes in a liquid drive the geomagnetic field its behavior is highly erratic – and poorly understood. I am especially intrigued by very rapid and regional short-term fluctuations in the Earth’s magnetic field; e.g. in some records we see its intensity double within a couple of decades and decline at least as fast. The origin and cause of these non-dipole phenomena are still highly enigmatic. To understand these features of the Earth’s magnetic field high-resolution (both in space and time) descriptions of its behavior through the recent geological history are indispensable.
Research Interest
geomagnetism
Publications
-
de Groot, Lennart V., Pimentel, Adriano & Di Chiara, Anita (01.07.2016). The multimethod palaeointensity approach applied to volcanics from Terceira - full-vector geomagnetic data for the past 50 kyr. Geophysical Journal International, 206 (1), (pp. 590-604) (15 p.).
-
L.V. de Groot (05.01.2017) Invited presentation during the Magnetic Interactions meeting held in Edinburgh, January 5 and 6 2017
-
de Groot, L.V., Biggin, A.J., Dekkers, M.J., Langereis, C.G. & Herrero-Bervera, E. (31.10.2013). Rapid regional perturbations to the recent global geomagnetic decay revealed by a new Hawaiian record. Nature Communications, 4, (pp. 1-7).
