Solar physicist at @ LMSAL (alum UTkyAst). I believe space weather forecast needs 4π coverage of remote-sensing and in situ observations. Until then use AI.
Palo Alto, California
Joined October 2013
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HaloCME retweeted
Earth just experienced a flank hit of a #CME launched on Aug 23rd with perfect southward Bz field! However, it's not likely to continue into the night for Europe. Total field 15 nT, Dst around -100 nT, much weaker than Mother's Day event, slightly weaker than event on Aug 17th.
HaloCME retweeted
A C5.2 double-ribbon flare occurred near AR3376, resulting in a halo CME heading mainly northwest. Glancing impact is expected on July 27th.
HaloCME retweeted
Back in Bern: ISSI Team Meeting working on "Origins of 3He-Rich Solar Energetic Particles" led by @RadoslavBucik & James Drake with @mrgho06 @yevgen_kazakov @halocme et al.
Details: issibern.ch/teams/origin3hen…
HaloCME retweeted
Budget summary for @NASA in FY 2023 in the President's budget request - Pages 109-110 whitehouse.gov/wp-content/up… - WH asks for $26 B - a $2.7 B / 11.6% increase over the 2021 enacted level
HaloCME retweeted
This free textbook on #Heliophysics by Schrijver et al. has been revised. Available at arxiv.org/abs/1910.14022 or via the textbook ‘resources’ page of the Heliophysics Summer School: cpaess.ucar.edu/heliophysics….
HaloCME retweeted
We have LIFTOFF of the @NASAWebb Space Telescope!
At 7:20am ET (12:20 UTC), the beginning of a new, exciting decade of science climbed to the sky. Webb’s mission to #UnfoldTheUniverse will change our understanding of space as we know it.
HaloCME retweeted
Total Solar Eclipse in Antarctica ☀️🌓🌎
📷: From the Union Glacier Joint Scientific Polar Station. By @FTruebaG / @MarcaChile and
@ReneQuinan / @inach_gob
📷: From an airplane. “Eflight 2021-Sunrise” Mission by astronomy student @vanebulossa / @uchile
HaloCME retweeted
Solar-like differential rotation reproduced in high-res simulations reveals the impact of a small-scale dynamo on thermal convection and the Solar cycle. Hotta & Kusano: nature.com/articles/s41550-0…
HaloCME retweeted
Spotting Hard-To-Detect Coronal Mass Ejections from the #Sun - Find here the ISSI Team Report by @erikapal incl. @halocme @TamithaSkov @JenniferOkane13 @slyardley @andrei_zhukov
#CME #solarstorms
bit.ly/3Bp2kY9
HaloCME retweeted
Glad the MetOffice is officially adopting the term #StealthCME now! This is a testament to how pro-active reporting on social media can lead to new science & ultimately move the needle when it comes to #SpaceWeather forecasts in operations. Big Thanks to those at @MetOfficeSpace!
kauai.ccmc.gsfc.nasa.gov/CME…
The eruption linked to the coronal dimming (marked 2) is modeled by @MetOfficeSpace, predicting its arrival around 1 July, 12 UT, with a 30% confidence.
Dimmings could occur without eruptions, but in this case temperature changes may be ruled out.
HaloCME retweeted
The registration deadline has been extended! Sign up to join @NASA, @NOAA and @NASASun May 3 - 7 as we prepare for the future of heliophysics: hou.usra.edu/meetings/helio2… #Helio2050
It’s time to shape the future of heliophysics. ☀️ I encourage community members to join us, @NSF & @NOAA as we prepare for the 2024 heliophysics decadal survey. go.nasa.gov/HelioDecadal
Register for the virtual Heliophysics 2050 workshop by April 26: hou.usra.edu/meetings/helio2…
HaloCME retweeted
🚨 22 April 2021 CME, Forecast alert 📢 The NASA prediction (shown in @SNHWx's tweet) is also consistent with the newly released official forecast from NOAA (shown below), with impact at Earth expected around midnight UT on April 25! 💨🌎
HaloCME retweeted
Interesting connectivity situation today: Earth, PSP and Solar Orbiter are connected to different southern CH/CH extensions. STEREO-A connected to a small equatorial CH (less certain). Consistent with fast winds and geomag activity on Earth @STORMS_IRAP @erikapal @halocme
HaloCME retweeted
A mind-blowing size comparison for some cosmic perspective.
Credit: Harry Evett. Full video: bit.ly/348ThsZ
xitter.cf/wonderofscience/status…
HaloCME retweeted
Bring some sunshine into your mailbox. 📬☀️ New @USPS stamps will feature views of the Sun from our Solar Dynamics Observatory, showcasing our star’s dynamic and dazzling activity. go.nasa.gov/3bMRmkX
ALT 10 postage stamps featuring views of our Sun from space
HaloCME retweeted
Look at this stunning imagery captured by @NASASun’s Solar Dynamics Observatory. This solar flare and subsequent eruption of solar material occurred on Nov. 29, 2020. While the solar material didn’t head toward Earth, it did pass by some spacecraft: go.nasa.gov/3ribqBh
HaloCME retweeted
New magnetic field data from the @NASASun Parker Solar Probe spacecraft have been released today, giving us the very first ever data taken at a distance of < 0.1 AU or one tenth of the distance of the Earth from the Sun.
