Skip to main content

Main navigation

NCAR Logo

High Altitude Observatory

HAO
Contact Us
  • Home
  • About
    • HAO News
    • History of HAO
    • People
    • Visitor Program
    • Partnerships
    • Organizational Chart
    • Strategic Plan
    • External Advisory Committees
    • Internal Advisory Committees
    • Information for Staff/Visitors
    • Computer Support
  • Research
    • Research Highlights
    • Science Topics
    • Strategic Working Groups
  • Modeling
    • Assimilative Mapping of Ionospheric Electrodynamics (AMIE)
    • Coupled Magnetosphere Ionosphere Thermosphere Model (CMIT)
    • Data-Optimized Coronal Field Model (DOCFM)
    • FORWARD
    • The GLobal airglOW Model (GLOW)
    • Global Scale Wave Model (GSWM)
    • MURaM Sunspot Model Output
    • TIEGCM
    • WACCM-X
    • Living With A Star Focus Team
  • Observation
    • Community Spectro-polarimetric Analysis Center
    • COSMO
    • Fabry-Perot Interferometers
    • HAO Eclipses
    • Mauna Loa Solar Observatory
    • McIntosh Synoptic Map Archive
    • NCAR Vacuum Tunnel Facility
    • Solar Maximum Mission
    • The Sun Today
    • WindCube
  • Education
    • The Sun: A Pictorial Introduction
    • Questions and Answers About the Sun
    • Famous Solar-Stellar Scientists
    • Solar Astronomy in the Prehistoric Southwest
    • Suggested Reading
    • Additional Educational Resources
  • News & Events
    • News
    • All Upcoming Events
    • Past Events
Contact Us

Observing and Modeling the Sun-Earth System

What We Do

Upcoming Events

Colloquium: Probing Chromospheric Temperatures and Dynamics with ALMA - Jan 25, 2023

Latest News

Mary Hudson smiling in front of a observatory building at Dartmouth College

Mary Hudson Named Associate Fellow of the American Institute of Aeronautics and Astronautics

Jan 11, 2023

The American Institute of Aeronautics and Astronautics (AIAA), the world’s largest aerospace professional society, has selected Dartmouth professor and HAO Senior Research Associate Mary Hudson to be a member of the Class of 2023 AIAA Associate Fellows.

The citation reads: For a lifetime of leading studies and understanding of the radiation environment of Earth’s magnetosphere and the implications for successful operations of space systems.

Mauna Loa November 2022 eruption

Hawaii's Mauna Loa Erupts after 38 years; Mauna Loa Solar Observatory temporarily closed

Nov 29, 2022

After 38 years, Hawaii's Mauna Loa erupted on Sunday 27 November 2022 at 11:30 PM local time. The eruption quickly filled the summit caldera forcing lava to spill and flow outward in an east and west direction. While the exact timing was a surprise, the eruption was anticipated due to recently felt earthquakes. Lava flows east of the Mauna Loa Solar Observatory (MLSO) have destroyed parts of the access road to the observatory and knocked out all power to the site. MLSO is not near any lava flows and not in any immediate danger.

Charlie outdoors at Mauna Loa with windswept hair

Remembering Charlie Garcia

Nov 3, 2022

Charlie J. Garcia passed away comfortably on 11/19/21 at age 91 surrounded by his caring family members. There is a celebration of his life on Saturday, November 5, 2022 in Hilo, HI. The High Altitude Observatory (HAO) at National Center for Atmospheric Research (NCAR) would like to honor Charlie’s life with the following photographic highlights from his long career as the Mauna Loa Chief Observer.

More News >>

Latest Research Highlights

Flare versus Rossby waves

On the connection between Rieger-type and magneto-Rossby waves driving the frequency of the large solar eruptions during Solar Cycles 19 - 25

Jan 19, 2023

Mausumi Dikpati, et. al. present findings of a unique evolution of identified shorter periodicities in global solar activity variation, like the Rieger-type, arising from magnetic Rossby waves, throughout the Solar Cycles 19-25. They report is further observational evidence of the strong relationship between the Rieger-type periodicity, magneto-Rossby waves, and major solar flare activity.

Double band MHD instability

Magnetohydrodynamics Instabilities of Double Magnetic Bands in a Shallow-water Tachocline Model: I Cross-equatorial Interactions of Bands

Jan 19, 2023

Bernadett Belucz, Mausumi Dikpati, Scott W. McIntosh, Robert J. Leamon, and Robertus Erdelyi discuss the Extended Solar Cycle (ESC) activity and strong overlapping between cycles. They compute the unstable eigenmodes for MHD Rossby waves at the base of the convection zone and study how the properties of these energetically active Rossby waves change as these band-pairs migrate equatorward.

Personss representing diversity, equity, and inclusion

Recommendations on simple but transformative diversity, equity, and inclusion measures in Heliophysics over the next decade

Jan 11, 2023

Astrid Maute asserts the importance of bringing diversity, equity, and inclusion (DEI) efforts to the forefront of Heliophysics over the next decade and well beyond. This position paper outlines three specific recommendations to make the Heliophysics community more diverse, equitable, and inclusive by improving the accessibility and accountability.

More Highlights >>

NCAR

  • NCAR Homepage
  • ACOM | Atmospheric Chemistry Observations & Modeling
  • CGD | Climate & Global Dynamics
  • CISL | Computational & Information Systems
  • EdEC | Education, Engagement & Early-Career Development
  • EOL | Earth Observing Laboratory
  • HAO | High Altitude Observatory
  • MMM | Mesoscale & Microscale Meteorology
  • RAL | Research Applications Laboratory

UCAR

  • UCAR Homepage
  • Community Programs
  • Diversity & Inclusion
  • Education & Training
  • For Staff
  • Government Relations & External Engagement
  • Member Institutions
  • Tech Transfer & Engagement
  • University Collaboration

Subscribe to NCAR|UCAR News

Follow NCAR|UCAR

© 2023 UCAR

  • Privacy
  • Cookies
  • Terms of Use
  • Copyright Issues
  • Sponsored by NSF
  • Report Ethics Concern
  • Staff Login
Postal Address: P.O. Box 3000, Boulder, CO 80307-3000 • Shipping Address: 3090 Center Green Drive, Boulder, CO 80301
NSF Logo

This material is based upon work supported by the National Center for Atmospheric Research, a major facility sponsored by the National Science Foundation and managed by the University Corporation for Atmospheric Research. Any opinions, findings and conclusions or recommendations expressed in this material do not necessarily reflect the views of the National Science Foundation.