CEDAR email: Haystack's 22nd Annual Michael J. Buonsanto Memorial Lecture - Thursday, 22 Nov 2021 @ 15:00 EST / 20:00 UTC

[Phil Erickson]

Hi all,

  On behalf of MIT Haystack Observatory, we are pleased to announce the
22nd Annual Michael J. Buonsanto Memorial Lecture.  This event will be
broadcast online via Zoom, and the link will be posted to the lecture
series page before the event.  In-person attendance is extremely limited
this year; please RSVP to heidij at mit.edu if you plan to attend at Haystack.

  Buonsanto Memorial Lecture Series home page:

https://www.haystack.mit.edu/buonsanto

  This year's lecture is presented by

Jan J. Sojka
Center for Atmospheric and Space Sciences
Department of Physics
Utah State University

Lecture Date/Time:
Thursday, 22 November 2021
3:00 p.m. Eastern Standard Time (20:00 UTC)

Title:
Would a present-day ionospheric servo model improve on Michael’s 1986
ionospheric servo study?

**** Abstract:

 Michael Buonsanto’s 1986 ionospheric servo study provides an excellent
starting point to appreciate Michael’s unique aeronomy insights and ability
to harness “tools” to advance our knowledge in space science. These tools
included Rishbeth’s servo equation, Hedin’s MSIS, conjugate ionosonde
observations, and of course FORTRAN. Michael’s study was ambitious,
involving seasonal dependences, solar cycle dependences, and conjugate
hemisphere dependences of the midlatitude wind fields. On these conjugate
field-lines, the issue of topside fluxes was also of key importance. His
clear description of how the aeronomy processes are interdependent and
hence constrained his ionospheric servo model are noteworthy. A feature all
too often missing from today’s studies is his careful error analysis.

Today these aeronomy processes are still the foundation of our
understanding; however, 35 years onwards, our observational databases are
hugely improved. The presentation will focus on the total electron content
(TEC) database of the MIT Haystack Madrigal data repository—an archive I’m
sure Michael would have had great satisfaction exploring with his servo
concepts and models.

This difference in data coverage and cadence restricted Michael and other
researchers from probing the ionosphere-thermosphere drivers beyond a
climatology level. Using the Madrigal TEC, an ionospheric servo will be
tested to better understand how difficult it still is to extract knowledge
about the ionospheric drivers. These are, in fact, the same drivers Michael
was targeting with his servo analysis. This modern servo is shown to have
challenges similar to those Michael faced in 1986.

========

  The Buonsanto Lecture's frontier science topic is directly relevant to
anyone interested in Earth's atmosphere, whether neutral or ionized.
Students, professors, and researchers from the international atmospheric
science community are encouraged to attend.

 The lecture will be live-streamed beginning at 3 pm EST (20 UTC) at this
Zoom link:

https://mit.zoom.us/s/97204386336

  The link will also be available on the Buonsanto Lecture series web page
above.

Regards,
Phil
-----
Philip Erickson, Ph.D.
Atmospheric and Geospace Sciences Group
MIT Haystack Observatory
Westford, MA  01886  USA

email: pje at haystack.mit.edu
WWW: http://www.haystack.mit.edu
voice: +1 617 715 5769
fax:   +1 781 981 5766

Public key: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x54878872
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.ucar.edu/pipermail/cedar_email/attachments/20211103/2d446267/attachment.html>