Solar wind

Constraints Imposed by the Square-Root Spin-down Law on Coronal Wind Parameters

Graph depicting Coronal Wind Mass-Loss Rate
Thursday, March 7, 2019

We derive an explicit expression for the coronal wind mass-loss rate. This result is based on a currently used generalized torque formula (per unit rotational velocity) expressed as a product of known monomials, separately for the magnetic field and the mass-loss rate.

The Mid-latitude Thermospheric Dynamics from An Inter-hemispheric Prospective

Graph depicting Meridional and Zonal Winds
Monday, January 28, 2019

Using Fabry-Perot interferometers (FPI) at five mid-latitude stations (Boulder, Palmer, Millstone Hill, Mt. John, and Kelan) in both hemispheres, we examine the inter-hemispheric and seasonal variations of mid-latitude thermospheric dynamics.

Kevin Pham

Dr. Kevin Pham is a Postdoctoral Fellow in the High Altitude Observatory of the National Center for Atmospheric Research specializing in the magnetosphere and radiation belt precipitation.

Temporal Variation of Solar Wind in Controlling Solar Wind‐Magnetosphere‐Ionosphere Energy Budget

Cross-correlation between Joule heating and the Epsilon function.
Thursday, September 13, 2018

Periodic oscillations associated with Alfven waves with periods ranging from several tens of minutes to several hours are commonly seen in the solar wind.

The longitudinal variations of upper thermospheric zonal winds observed by the CHAMP satellite at low and mid-latitudes

Longitudinal structures of zonal winds
Thursday, March 1, 2018

In this work, Kedeng Zhang, Wenbin Wang and others, investigate the longitudinal patterns of thermospheric zonal winds (~400 km) and their seasonal and solar activity dependence.

Climatology of semidiurnal lunar and solar tides at mid and high latitudes: comparison between hemispheres

Mean zonal wind
Friday, July 7, 2017

The semidiurnal lunar and solar tides obtained from meteor radar measurements spanning from 2009 until 2013 observed at Davis (69°S) and Rio Grande (54°S) are presented and compared to the northern hemisphere at Andenes (69°N) and Juliusruh (54°N).

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.

Qian Wu

Dr. Qian Wu is a Project Scientist in the High Altitude Observatory of the National Center for Atmospheric Research specializing in observations of mesospheric and thermospheric winds.

Solar Transients and Space Weather

Overview and Research Goal

Subscribe to RSS - Solar wind