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Matthias Rempel

Nature of Grand Minima and Maxima from Fully Non-Linear Flux-Transport Dynamos

Identified Grand Minima and Maxima
Thursday, September 7, 2017

We aim to investigate the nature and occurrence characteristics of grand solar minimum and maximum periods, which are observed in the solar proxy records such as 10Be and 14C, using a fully non-linear Babcock-Leighton type flux transport dynamo including momentum and entropy equations.

Slow appearance of sunspots challenges theory

HAO along with researchers from the Max Planck Institute for Solar System Research, The University of Göttingen, and NorthWest Research Associates have now shown that magnetic flux concentrations forming active regions on the sun emerge at a rate much slower than predicted by the prevailing curre

Matthias Rempel

Submitted by whawkins on April 14, 2016 - 10:25am

Dr. Matthias Rempel is a Senior Scientist in the High Altitude Observatory at the National Center for Atmospheric Research. His research area is solar physics, with special emphasis on theoretical modeling of the solar interior and the solar photosphere.

Super-Resolution Making Order Out of Chaos

Real Sun magnetic simulation
Friday, March 25, 2016

A paper was published today in Science by a team from the National Center for Atmospheric Research (NCAR), Chiba University in Japan, and the University of Tokyo. It is titled "Large-scale magnetic fields at high Reynolds numbers in magnetohydrodynamic simulations."

A new Solar Superstorms documentary

NCSA Press Release–Several scientists from HAO at NCAR, including Yuhong Fan, Mark Miesch, Nick Nelson, and Matthias Rem

HAO Colloquium Series Presents Matthias Rempel, HAO

Numerical simulations of sunspot decay: On the penumbra – Evershed flow – moat flow connection

Sunspots and Photospheric Dynamics

Submitted by whawkins on September 10, 2014 - 9:25am

Sunspots are the most prominent manifestations of magnetic field in the visible layers of the solar atmosphere. Their origin is a dynamo process operating in the solar convection zone.

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The National Center for Atmospheric Research is sponsored by the National Science Foundation. Any opinions, findings and conclusions or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.