The ISCS 2001 Symposium will summarize the research activities within the international research program "International Solar Cycle Studies" (ISCS), which is operating under the auspices of SCOSTEP. The main goal of this symposium is to summarize the most recent results gained on the measurements of solar irradiance and particle radiations, modeling efforts and explanations of the observed changes in the solar energy flux. The topics of the meeting will also include the effect of solar energy flux variations, both electromagnetic and particles, on the Earth's climate system and space environment. The results to be presented during this symposium will be based on most recent measurements gained by UARS, SOHO, ACE, TRACE. Future research directions and requirements to better understand the effect of the changing Sun on the human milieu and societal planning will also be discussed. This meeting is being held jointly with the Radiative Inputs from Sun to Earth (RISE) program.

The International Solar Cycle Study is divided into three working groups which are concerned about the variations of the solar energy flux (both electromagnetic and particles), solar magnetic fields, coronal mass ejections and the effect of solar variability on the Earth's climate system and space environment. During the ISCS 2001 Symposium several working group breakout meetings will be held to discuss on-going and future research plans. The conference material is planned to be published in the format of an AGU Monograph. Further details on the publication will be provided in February 2001. Please note that all contributed papers will be poster papers.

Please visit the web sites http://rise.hao.ucar.edu/iscs or http://cspar.uah.edu/iscs for full details on the program, abstract submission, registration, travel grants, accommodation, visa, etc. Note that limited travel grants are available for scientists who cannot cover their expenses from their own resources.

Abstract deadline: May 1, 2001. Scientists who need travel funds should submit their abstracts and registration by February 16, 2001.

Registration deadline: March 1, 2001. Late registration deadline: May 14, 2001.

There are a number of rooms reserved with a discount rate in the Raintree Plaza hotel for participants, these rooms can accomodate a maximum of 3 people per room. Hotel reservations can be made via the web or please call the hotel at 1-800-843-8240 indicating that you are attending the ISCS2001 meeting, to get the discount price. Please note that the cutoff date for the reservations is May 14, 2001, after this date the discount price and room availability cannot be guaranteed. Several rooms in the University of Colorado Residence Halls in Boulder are also reserved for the meeting.

If you do not have access to the web, please contact us by fax: +1-303-497-1589 or email: iscs2001@hao.ucar.edu. For further information on the scientific program and travel grants please contact Judit M. Pap (Phone: 301-286-7511, email: papj@marta.gsfc.nasa.gov) and on abstract submission, registration and accomodation please contact Peter Fox (Phone: 301-497-1511, email: pfox@hao.ncar.edu).

ISCS participants are also invited in attending the 3rd TIGER Symposium of ISCS WG1 (Panel 2) to be held on June 12, 2001 at the University of Colorado in Boulder. The primary objective of TIGER (Thermospheric-Ionospheric Geospheric Research) is to provide parameters representing the variable solar EUV/UV and X-ray fluxes as well as the solar wind originated energy influx to improve the existing and future thermospheric-ionospheric (T/I) models. The topics of the symposium are:

1. Measurement of solar EUV/UV radiation
2. EUV/UV space intrumentation and its calibration
3. Modelling of solar EUV/UV radiation
4. Modelling of the solar wind originated energy T/I influx
5. Modelling of the thermosphere/ionosphere

To receive more information you can contact Gerhard Schmidtke at schmidtk@ipm.fhg.de or look at the TIGER web site:

http://lasp.colorado.edu/see/tiger/

The ISCS 2001 Symposium is related to CEDAR/SCOSTEP's 10th STP Symposium which will be held in the Raintree Plaza Conference Center just after the ISCS 2001 Symposium, June 17 - 22, 2001. Attendees interested in the CEDAR/SCOSTEP meeting, please visit its web site at:

http://cedarweb.hao.ucar.edu/wkshp

Scientists planning to attend both the ISCS and CEDAR/SCOSTEP meetings should register for both meetings and make hotel reservations for both meetings.

The Scientific and Local Organizing Committees of the ISCS 2001 Symposium consist of:

SCOSTEP, IAU, IAGA, NASA, NSF, NOAA/Space Environment Center, High Altitude Observatory, University of California, Los Angeles, University of Alabama, Huntsville, University of Colorado at Boulder