Space Weather Euro News Vol.4 Issue 8 (15-04-2000)

Table of Contents:
1. Report on April 6-7 2000 Geomagnetic Storm
2. Impressions of the AGU Chapman Conference on "Space Weather:
    Progress and Challenges in Research and Applications", March 20-24,
    Clearwater, Florida.
3. Announcement of JGR-Space Physics Special Issue on "Space Weather:
    From Research to Applications"
4. Space Weather Week (May 1-5, 2000) – Last announcement
5. Some ESA Tender Actions
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1. Report on April 6-7 2000 Geomagnetic Storm
From: Henrik Lundstedt                   E-mail:

Reports regarding the April 6-7, 2000 geomagnetic storm are available at

Auroras were observed in southern Sweden, even as far south as in Holland.

Amazingly little effects on the power systems were however reported.

2. Impressions of the AGU Chapman Conference on "Space Weather:
    Progress and Challenges in Research and Applications", March 20-24,
    Clearwater, Florida.
From: Richard Marsden                      E-mail:

The AGU's Chapman Conferences are intended to provide a forum for in-
depth discussion of a timely scientific topic. The recent meeting devoted to
Space Weather: Progress and Challenges in Research and Applications, held
in Clearwater, Florida, was an excellent example of the value of such focused
gatherings. The conference was attended by more than 100 scientists, mainly
from the USA. Invited speakers included Gene Parker (the "father" of the
solar wind), Jack Gosling, Dan Baker, Chris Russell, and many other key
figures in the field of space science. The scientific programme was organised
around a number of themes. These included Specification of Solar Wind/IMF
Conditions; Specification of Magnetospheric Field/Plasma Conditions;
Specification of Ionospheric/Thermospheric Conditions; Specification of
Solar Energetic Particle Environments; Specification of Magnetospheric
Radiation Conditions; Forecast and Nowcast Solar Events; Nowcast and
Forecast of Magnetospheric Disturbances, Geomagnetically Induced
Currents, Radiation Hazards, Ionospheric and Thermospheric Disturbances.
Several introductory tutorials were given.

Although much progress has been made in the 5 years since the start of
coordinated space weather activities in the USA, it was generally recognised
that we still have a long way to go in understanding the basic physical
processes driving many of the phenomena responsible for space weather
effects. As noted by Gene Parker in his invited talk, the solar magnetic field is
the ultimate source of space weather, and there is much about solar
magnetism that we simply don't understand ("Space weather originates in a
fog back at the sun, and we're working on that fog!"). Nevertheless, as many
of the presentations demonstrated, we do have a broad phenomenological
picture of space weather. A number of forecasting techniques based on this
phenomenological approach are showing promising results. These include
solar wind speed predictions using the observed photospheric magnetic field
and source surface/expansion factor models, and predictions of relativistic
("killer") electron fluxes at geosynchronous orbit based on observed solar
wind speed fluctuations. In the latter case, predictions up to 1-2 days in
advance seem possible, although the underlying physics is not understood.

As might be expected, the role of coronal mass ejections (CMEs) in triggering
magnetic activity was emphasised, although several speakers stressed that
only a very small fraction of CMEs cause severe space weather effects. On
the other hand, there is a definite need for 24 hr/day, 7 days/week monitoring
of the space environment for less dramatic (but nevertheless important)
effects. There is also a need for reliable "all quiet" predictions in addition to
storm warnings. It was noted that, during the last solar maximum period
(1989-91), there were 117 event days, compared with 974 days on which no
event occurred. "All quiet" predictions are particularly important in
connection with manned space activities.

A number of presentations dealt with progress in the field of modeling,
including sophisticated MHD simulations. Particularly impressive were
coupled models of the magnetosphere (MHD) - ionosphere/thermosphere
system. In connection with the latter, it was noted that successful predictions
rely strongly on the usefulness of the solar wind input data. This in turn
depends critically on the position relative to the sun-earth line of the solar
wind monitor used. In this respect, the L1 orbit is not ideal, since transverse
off-sets can be large.

In summarising the meeting, organiser George Siscoe compared the field of
space weather with that of meteorology. He noted that the latter has a much
longer history, having its origins in the mid-19th century. The US National
Space Weather Program (NSWP) was established in 1995, and has shown
astonishing productivity in its short lifetime. The NSWP has focused on the
evolution from pure research into operations, and NASA's new "Living with a
Star" initiative will underpin this by enabling the acquisition of data needed to
make the required progress in research. A major strength of the current space
weather effort is that it brings together the solar, heliospheric,
magnetospheric, and ionospheric communities. Space weather is a system,
and needs treating as such.

3. Announcement of JGR-Space Physics Special Issue on "Space Weather:
    From Research to Applications"
From: Amy Shutkin                      E-mail:

The term "space weather" is used to describe both the highly coupled space
environment from the Sun to the Earth and its technological consequences.
The topic has become a major focus of space physics research across all its
subdisciplines, with the ultimate goal of translating understanding gained
from research to applications. This special issue focuses on the state-of-the-
art in characterizing and modeling disturbed space weather precipitated by
solar activity, with forecasting the ultimate challenge.

Original research papers designated for this special section must reach the
Berkeley editorial office by June 30, 2000. Papers received after this date are
not guaranteed consideration for the Special Section. Please indicate the
"Space Weather" Special Section in your cover letter, and prepare your
submission assuming the usual JGR standards and review process.

You will find complete instructions for manuscript preparation, together with
the AGU 'style file' (agums.sty) at:

Electronic submissions as Postscript or Adobe.pdf file attachments are
encouraged. Any document can be converted into an Adobe.pdf file for free
through the following hyperlink:

Questions regarding this special section should be addressed to the organizer,
Paul Song

Janet G. Luhmann,
Senior Editor
Amy Shutkin,
Managing Editor
JGR- Space Physics

4. Space Weather Week (May 1-5, 2000) – Last announcement
From: Barbara Poppe                        E-mail:

Space Environment Center will host the second annual Space Weather Week
during the week of May 1, 2000 in Boulder, Colorado.  Space Weather Week
will include the Research-to-Operations Workshop (co-organized by Air
Force Research Laboratory and NSF Division of Atmospheric Science), the
SEC Users Conference, and the Space Weather Vendors Meeting. By
combining the Users Conference, the Research-to-Operations Workshop, and
the Vendors Meeting,  these overlapping communities will be able to assess
the needs for enhanced  operational services and to assess the capabilities and
limitations of our  scientific and operational tools.  Check for more details at

Barbara Poppe                                      303-497-3992
NOAA Space Environment Center
325 Broadway, Boulder, CO 80303      fax 497-3645

5. Some ESA Tender Actions from ESA EMITS

             (Open from 03/04/2000 to 30/05/2000, Act.Ref.: 99.1WM.05)

             (Open from 13/03/2000 to 09/05/2000, Act.Ref.: 00.1CA.23)
             (Open from 09/03/2000 to 25/05/2000, Act.Ref.: 00.112.02)
             (Open from 13/03/2000 to 08/05/2000, Act.Ref.: 00.1JP.01)

For more information and the complete list of ESA Tender Actions
please look at:

Note: This newsletter is an initiative of the ESA Space Systems Environment Analysis Section
and is intended to establish a prototype of a potential
mailing list or forum with news of interest for the Space
Weather community in Europe.

- SWEN contact group (which keeps SWEN informed of news coming from
  other channels)is currently:

 Eamonn Daly, ESA (excluding science programme)
 Richard Marsden, ESA science programme
 Maurizio Candidi, CNR
 Paul Cannon, URSI-Commission G
 Mike Hapgood,  EGS
 Hannu Koskinen, SCOSTEP working group on Space weather
 Pierre Lantos, ISES
 Henrik Lundstedt, Lund space weather center
 Goetz Paschmann, ISSI
 Jean-Yves Prado, CNES-ONERA working group on space weather
 Michael Rycroft, ISU
 Volker Bothmer, EGS-Solar Physics Secretary
 Wolfgang Baumjohann, MPE-German Representative
 Jinbin Cao, Chinese Space Weather Activity Representative
 Barbara Poppe, NOAA Space Environment Centre

- SWEN archives are also available on:

- Please direct all replies and submissions to the
newsletter to:

- To subscribe to the newsletter send your email address

- Please update your e-mail address if it has been
changed.  Please send both your new and old e-mail
address to the editor for easier updating of your file.

We are looking forward to receiving your inputs.

The SWEN editor

Alain Hilgers



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