NCAR High Altitude Observatory

PUNCH will Change how we Look at Young Solar Wind

Graphic depicting the PUNCH mission (Image: SwRI)

NASA's recently-funded Small-Explorer (SMEX) mission, PUNCH (Polarimeter to UNify the Corona and Heliosphere), is targeted to launch in 2022.

Waldmeier Effect in Stellar Cycles

Graph depicting the second Waldmeier effect-WE2
Tuesday, October 8, 2019

One of the most robust features of the solar magnetic cycle is that the stronger cycles rise faster than the weaker ones. This is popularly known as the Waldmeier Effect, which is known for more than 100 years.

Simulating the solar corona in the forbidden and permitted lines with forward modeling I: Saturated and unsaturated Hanle regimes

Graphic depicting Linear polarization azimuth
Thursday, October 3, 2019

The magnetic field in the corona is important for understanding solar activity. Linear polarization measurements inforbidden lines in the visible/IR provide information about coronal magnetic direction and topology.

Capturing a Sleeping Sun

Chart of early observations highlights two Maunder minima
Thursday, November 5, 2015

Three hundred years ago, the Sun began to wake up. For 70 years—from about 1645 to 1715—the Sun had been eerily quiet, with very few sunspots erupting on its surface.


Graphic of two-dimensional filtered Global Navigation Satellite System (GNSS) total electron content (TEC) maps
Wednesday, September 11, 2019

Earthquake and tsunami are known to be the source of atmospheric gravity waves that can generate plasma ripples in the space. On March 11, 2011, a magnitude 9.0 earthquake occurred near the east coast of Honshu, Japan, unleashing a savage tsunami to strike offshore of Japan.

CoMP utilities

Graphic image of download button

This library contains routines for analyzing and visualizing various aspects of CoMP data.

Data-optimized coronal field model: 1. Proof of concept

Graphic depicting field-lines from a ground-truth flux-rope magnetic field model
Thursday, August 8, 2019

Deriving the strength and direction of the three-dimensional (3D) magnetic field in the solar atmosphere is fundamental for understanding its dynamics. Volume information on the magnetic field mostly relies on photospheric and/or chromospheric surface vector magnetic fields.

Seeker Science Video Features HAO's Delores Knipp

Photograph of Coronal Mass Ejections

Seeker, an American digital media network and content publisher, interviewed HAO's space scientist, Delores Knipp, in July 2019. The presentation is titled "How Earth's Magnetic Field Twists and Buckles During Solar Storms." Dr.

Caitlyn Quinn Erdesz

Caitlyn is an Administrator II in the High Altitude Observatory (HAO) at NCAR. She is the proposal process leader for HAO.


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