Observations

Discovery of New Coronal Lines at 2.843 & 2.853 Microns

Summary of AIR-Spec observations during totality
Tuesday, February 20, 2018

Jenna Samra and Philip Judge identify two new emission features observed during the 21st August 2017 total solar eclipse by a novel spectrometer, AIR-Spec, flown at 14.3 km altitude aboard the NCAR Gulfstream V aircraft.

GOLD Mission Launched into Orbit

SES-14 communications satellite

The NASA Global-scale Observations of the Limb and Disk (GOLD) mission was launched into orbit on January 25, 2018 as a commercially hosted payload on the SES-14 communications satellite. There were anxious moments following lift-off when mission control lost contact with the satellite.

Rosetta Stone Eclipse Campaign

(Right to left) FLIR camera, PolarCam, and Avantes flash spectra

HAO scientists observed the August 21st total eclipse with a suite of three instruments with financial assistance provided by NASA.

A TRMM/GPM retrieval of the total mean generator current for the global electric circuit

Global mean distribution of Wilson current for the GEC (1.6 kA total)
Monday, October 16, 2017

A specialized satellite version of the passive microwave electric field retrieval algorithm (Peterson et al., 2015) is applied to observations from the Tropical Rainfall Measuring Mission (TRMM) and Global Precipitation Measurement (GPM) satellites to estimate the generator current for the Global

The NASA Ionospheric Connection Explorer (ICON) Mission

Variation of NmF2 log 10 [1/cm3] for different seasons
Wednesday, April 26, 2017

The NASA Ionospheric Connection explorer (ICON) will study the coupling between the thermosphere and ionosphere at low- and mid-latitudes by measuring the key parameters.

Gravity wave variation from the troposphere to the lower thermosphere during a stratospheric sudden warming event: A case study

Vertical energy flux
Monday, April 3, 2017

High resolution Whole Atmosphere Community Climate Model (WACCM) simulations are used to study how gravity waves vary during a stratospheric sudden warming (SSW) event from the source region to the lower thermosphere.

A study of large wind shears near the mesopause and the tropopause

Vertical profiles of maximum wind shear
Friday, March 31, 2017

The NCAR Whole Atmosphere Community Climate Model (WACCM), with a quasi-uniform horizontal resolution of $\sim$25km and a vertical resolution of 0.1 scale height, produces large horizontal winds and vertical shears maximizing in the mesosphere and lower thermosphere (MLT), similar to those found

DKIST: Solar Physics in Service of Society

Phil Judge, Claire Raftery, Sarah Jaeggli

Philip Judge, Senior Scientist at HAO, Claire Raftery, Director of Education and Outreach at NSO HQ in Boulder, and Sarah Jaeggli, Assistant Astronomer at the NSO's Daniel K Inouye Solar Observatory in Maui were guests on KGNU public radio in Boulder, CO.

The properties of optical lightning flashes and the clouds they illuminate

properties of optical lightning flashes and the clouds they illuminate
Friday, November 18, 2016

Optical lightning sensors like the Optical Transient Detector and Lightning Imaging Sensor (LIS) measure total lightning across large swaths of the globe with high detection efficiency.

Pages

Subscribe to RSS - Observations