Exploring Where Earth's Weather Meets Space Weather


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The Ionospheric Connection Explorer (ICON), the newest addition to NASA’s fleet of Heliophysics satellites, launched on October 10, 2019 at 9:59 p.m. EDT. Led by UC Berkeley, scientists and engineers around the world came together to make ICON a reality.

The goal of the ICON mission is to understand the tug-of-war between Earth’s atmosphere and the space environment. In the "no mans land" of the ionosphere, a continuous struggle between solar forcing and Earth’s weather systems drive extreme and unpredicted variability. ICON will investigate the forces at play in the near-space environment, leading the way in understanding disturbances that can lead to severe interference with communications and GPS signals.

Mission Operations News

Mission Operations News

ICON Temperatures Updated to Version 6, Now Available

Colin Triplett 0 137

The MIGHTI temperature product (L2.3) has been updated to version 6 (v06) and is currently available for the full mission on the ICON FTP site and at SPDF. 

With this version update, the MIGHTI-A and MIGHTI-B temperature data are both more rigorously tested to ensure continuity across the solar terminator. Also, the top of the daytime MIGHTI-A temperature profiles is now 135 km, up from 127 km in previous versions. Links to the data products are provided here:

ICON FTP MIGHTI

CDAWeb MIGHTI-A

CDAWeb MIGHTI-B

Prior to using these data, please review the data product documentation here:

ICON FTP Temperature V06 Documentation

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Latest News

News

El Niño has effects all the way to the edge of the atmosphere.
Claire Raftery
/ Categories: UC Berkeley, Science, Press Release

El Niño has effects all the way to the edge of the atmosphere.

-- December 16, 2015

The warm El Niño conditions affecting weather around the Pacific Ocean are also affecting conditions in space, according to University of California, Berkeley scientists.

El Niño is commonly observed as a global change in rainfall due to changes in temperature in the Pacific Ocean. However, UC Berkeley scientists report today at the annual meeting of the American Geophysical Union meeting in San Francisco that the processes that lead to increased precipitation are also driving unexpected changes in the ionosphere, the uppermost level of the atmosphere.

The findings (AGU abstract #SA31F-2383) will be presented by Dr. Thomas Immel, and are based on calculations by Dr. Astrid Maute of the High Altitude Observatory in Boulder, Colorado.

“We expected that we would see some changes in the ionosphere when we started this study” says Dr. Immel, a Senior Fellow at UC Berkeley’s Space Sciences Laboratory, “but we were shocked at how strong the effect has turned out to be”.

“The connection between the lower and upper atmosphere has been getting more attention lately” says Immel, who is also participating on a panel with former Vice President, Al Gore on the future of Earth Observations today. “This is largely because we keep discovering new ways in which the lower atmosphere affects the conditions higher up”.

The study is being conducted in advance of a new NASA mission, the Ionospheric Connection Explorer (ICON), which will study this and similar effects, has observed large enhancements in ionospheric density after dusk – a time when the ionosphere generally relaxes and is significantly thinner. Instead, they are finding that the ionosphere is disproportionately thick, even after sunset.

Dr. Katelynn Greer explains the effect: “El Nino is the term used to describe abnormally high temperatures in the Pacific Ocean, which results in temporary changes in global weather patterns. During El Nino, changes in wind and ocean current patterns result in warm waters stretching across the whole Pacific Ocean. This causes more water to vaporize into the atmosphere, which in turn will absorb more solar energy into the atmosphere. This extra heating causes changes in wind patterns, which causes atmosphere to react and change all the way from the ground to the edge of space around Earth.”

Although the evidence for this effect is quite convincing, the evidence currently consists exclusively of theoretical models. This is because there is no way to observe these kinds of changes in the ionosphere at the current time. However, a new satellite mission called the Ionospheric Connection Explorer, or ICON, will directly observe and measure these ionospheric shifts. “ICON will help us to understand what’s happening in our own atmosphere, during El Nino and during normal conditions” says Dr. Immel, principal investigator for the mission. “This is very exciting for us since ICON will observe El Nino in the ionosphere for the first time ever.”

ICON is currently scheduled for launch in the summer of 2017. Visit icon.ssl.berkeley.edu for further details.

For further information or comment on the ICON mission, please contact Dr. Thomas Immel: 510-499-8984; immel@ssl.berkeley.edu.
For general information, contact Dr. Claire Raftery 510-520-7569; Claire@ssl.berkeley.edu
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