Azaymi Siu investigates the penumbra of sunspots

Azaymi Litzi Siu Tapia

Azaymi Litzi Siu Tapia is a PhD student in Solar Physics at Max Planck Institute for Solar System Research and the University of Gottingen in Germany, since August 2014. She is working with Andreas Lagg and Sami K.


Poloidal and toroidal magnetic fields
Thursday, September 8, 2016

We implement an Ensemble Kalman Filter procedure using the Data Assimilation Research Testbed for assimilating "synthetic" meridional flow-speed data in a Babcock–Leighton-type flux-transport solar dynamo model.

Magnetic Diagnostics of the Chromosphere with the MG II H–K Lines

Stokes profiles of the Mg II h–k doublet
Wednesday, August 31, 2016

We developed a numerical code for polarized radiative transfer in a plane-parallel geometry that implements a recent formulation of partially coherent scattering by polarized multi-term atoms in arbitrary magnetic field regimes.

Bolaji Segun, living his research dream

Bolaji Segun is a visiting researcher to HAO working with Qian Wu using the TIEGCM community model to study equatorial ionosphere variations caused by geomagnetic activities and stratospheric warming.

Dynamical downscaling simulation of gravity waves generation by tropical cycle

Downscaling simulation of gravity waves
Monday, August 15, 2016

National Center for Atmospheric Research Whole Atmosphere Community Climate Model (WACCM) with ≈0.25 degree horizontal resolution can resolve gravity waves with horizontal scales down to ≈250 km.

Ray Roble

Raymond Roble received the Ph.D. from the University of Michigan and currently is a senior scientist emeritus in the High Altitude Observatory at NCAR. His research concentrates on the chemistry, physics, and dynamics of the upper atmosphere and on global atmospheric electricity.

Data-Optimized Coronal Field Model (DOCFM)

DOCFM is an NCAR/CfA collaboration that is funded by AFOSR to model the global coronal magnetic field using magnetometric and other observations, with the goal of improving space weather forecasts of magnetic orientation within c

Meet Michael Peterson

Michael Peterson

Michael is a current post-doc with HAO since 2014 in a joint appointment with RAL.

Joseph McInerney

Joe McInerney is an Associate Scientist in the High Altitude Observatory of NCAR specializing in the development of, and validation of simulations from, upper atmosphere and ionosphere physics and chemistry models.


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