SOLAR PREDICTION SCIENTISTS ANNOUNCE SOLAR CYCLE 25
By: miker on: Thu., Dec. 31, 2020 09:53 PM EST (2990 Reads)
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As reported on the SWPC website (swpc.noaa.gov) Solar Cycle 25 has begun. Quoting: "The solar minimum between Solar Cycle 24 and 25 - the period when the sun is least active - happened in December 2019, when the 13-month smoothed sunspot number fell to 1.8, according to the Solar Cycle 25 Prediction Panel, co-chaired by NOAA and NASA. We are now in Solar Cycle 25 with peak sunspot activity expected in 2025." The press release by the National Weather Service with more details is available at https://www.weather.gov/news/201509-solar-cycle
![]() Photo: Solar image obtained with Solar Ultraviolet Imager aboard GOES-East on Dec. 15, 2019. This is the sun at its least active. Credit: NOAA |
Patricia Reiff's Comment on Diagnostics for Forecasting a 'Big Event' following a CME
By: miker on: Fri., Dec. 11, 2020 11:04 AM EST (2531 Reads)
Following the fizzle of the geomagnetic 'Big Event' (G3 storm) forecast for Dec 9-11, 2020 due to the CME observed on Dec 7, Prof. Patricia Reiff at Rice University offered her thoughts on how to identify promising solar conditions to HamSCI mailing list subscribers (https://www.hamsci.org/). Quoting from Pat's email:
>> I wasn’t alarmed enough to send out a special alert to my "spacalrt" system. Why? Well, for the *really big* events, there is a halo CME, centered and expanding uniformly around the sun, saying the CME is pointed our way AND there is a HUGE amount of "snow" on the LASCO coronagraph, from the energetic particles hitting the detector. When I heard the announcement, I immediately downloaded the coronagraph movie and saw neither of these.<< Pat has offered specific guidance on how to diagnose these conditions in SOHO coronograph observations - See 'Read More'. The Rice space weather forecast and information on how to subscribe to the "spacalrt" email list are available at http://mms.rice.edu/mms/forecast.php ![]() Photo credit: SOHO LASCO C2 image from the NASA SOHO website |
New radars under construction in Inner Mongolia
By: miker on: Fri., Oct. 16, 2020 12:16 PM EDT (2190 Reads)New group joins the SuperDARN collaboration from the National Space Science Center (CAS), Dr. Jiaojiao Zhang elected to the PI Executive Council
By: miker on: Tue., June 23, 2020 02:28 PM EDT (4617 Reads)2020 SuperDARN Workshop moves to online format, scheduled for June 1-5
By: miker on: Wed., May 20, 2020 11:01 AM EDT (4366 Reads)
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The Chair of the SuperDARN Executive Council, Prof. Kathryn McWilliams has announced that the 2020 SuperDARN Workshop, originally planned for South Africa, has been moved to an online format, hosted by the University of Saskatchewan. There will be virtual Working Group meetings (live) and asynchronous conference presentations (view at your leisure) on Vimeo. The workshop will still take place over the first week of June. The workshop in South Africa is now planned for 2021. For more information and to register, go to the workshop website:
https://superdarn.ca/workshop2020 ![]() The deadline for registration and video transfer is 28th May 2020! Email inquiries can be sent to: |
Grid2, map2 files available back to July 2006
By: ksterne on: Fri., Apr. 17, 2020 11:08 AM EDT (2890 Reads)
As a general update, it's been a few years since the major revisions to our grid- and map-level processing software were complete. These revisions date back to RST 4.0 (as of this writing, RST is at version 4.3.1) with the new files being named grid2 and map2 so that previous files could be maintained for data reproducibility. A number of other data issues were being sorted out and processed, including the expansion of the VT data storage systems, that delayed a mass processing of the new files. However with a break in some activities, grid2 and map2 files have now been generated back to the start of the modern dmap file format on July 1, 2006.
As always, for a listing of what files we have for certain dates please visit our Data Inventory page. |