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Staying Connected

April 7, 2020

Tap tap tap... tap tap tap... Sarah's home office has a lovely view out the window. The cherry tree hasn't started to blossom yet but a host of little nuthatches come and visit. Which is nice—except that one little guy has decided to do his daily drill on the corner of the window sill. After a half an hour of gentle rapping, rapping, Sarah is ready to shout, "Nevermore!"

April 3, 2020

Joanne reports: Work is going well. It is sometimes lonely not getting to walk around and see you all, or see the latest fashion trends ala Ms. Knack. Also my headset is giving me a headache on the daily.

April 2, 2020

A message from Tony Busalacchi, UCAR president: We have been hearing that many of our Asian staff are feeling fearful due to increased instances of racism linked to the coronavirus outbreak. Increased racist attacks targeted at people of Asian descent are being reported across the country, as well as in our own county, including an inappropriate sign on a local liquor store.

Recent News

Photograph of Mausumi Dikpati, senior scientist at HAO
March 17, 2020

Mausumi Dikpati is a senior scientist at HAO. She studies the dynamics between Rossby waves and solar activity such as flares and coronal mass ejections (CMEs).

Child participant at 2020 Little Shop of Physics doing hands-on activities
March 11, 2020

High Altitude Observatory (HAO) staff was invited by UCAR Science Education to present “Space Weather” to the public at the Little Shop of Physics 29th Annual Open House at the Colorado State University in Fort Collins. It was the biggest and brightest open house they have had yet, which was attended by approximately 10,000 visitors.

Publication Highlights

Graphic image of opposite polarity magnetic fields
March 31, 2020

Recent numerical simulations and observations of sunspots show a significant amount of opposite polarity magnetic fields within the sunspot penumbra. Most of the opposite polarity fields are associated with convective downflows.

Graph depicting temperature of cavities and surrounding streamers
March 31, 2020

We have analyzed 33 cavities observed between 2012 and 2018, from solar activity maximum to minimum. For each cavity we applied a differential emission measure method to obtain both a temperature distribution and a value of the average temperature.

Graph depicting solar magnetic weather
March 31, 2020

Rossby waves arise in thin layers within fluid regions of stars and planets. These global wave-like patterns occur due to the variation in Coriolis forces with latitude. In the past several years observational evidence has indicated that there are also Rossby waves in the Sun.

MLSO Latest Images

CoMP Coronal Intensity

The COronal Multi-channel Polarimeter (CoMP) observes the Fe-XIII emission line at 1074.7 nm to measure the coronal magnetic field and obtain plasma density and motion in the low corona from ~1.03 to 1.5 solar radii.


K-Cor White Light Corona

Designed to study the formation and dynamics of coronal mass ejections and the evolution of the density structure of the low corona, K-Cor records the polarization brightness (pB).


K-Cor (radially graded filter)

K-Cor image with a normalized radially graded filter (nrgf) to maximize image contrast, especially in the outer field.

These data are ideal for measuring positions of coronal structures such as CMEs and helmet streamers.

People Profile