Past Events


A VEXAG International Workshop

Venus Our Closest Earth-like Planet: From Surface to Thermosphere - How does it Work?

30 August - 2 September 2010
Madison, Wisconsin, USA

Venus was first visited in 1962 by Mariner 2 fly-by and has been explored since then by Mariners 5 and 10 (Fly-by), numerous Venera (fly-bys, orbiters and entry probes/landers), Pioneer Venus (Orbiter, probes), VeGa 1 & 2 (fly-by, balloons and landers), Magellan (radar orbiter), Galileo (fly-by), MESSENGER (fly-by). Currently Venus Express is returning new information about Venus as it orbits the planet, and the Japanese Venus Climate Orbiter ("Akatsuki") is being readied to be launched in May/June 2010 to orbit Venus in December 2010. In the nearly five decades since the Mariner 2 fly-by, we have learned much about Venus' dynamic atmosphere, yet a good understanding of how the Venus atmosphere works and how it interacts with the surface is lacking.

Major questions remain unanswered in dynamics, chemistry, surface-atmosphere interactions, radiative balance, climatology, and evolution of the Venus atmosphere. Here is a sampling of suggested topics for the workshop:

  1. Nature, process, and consequence of surface-atmosphere interaction?
  2. Timing and cause of loss of water from Venus' surface, and its impact on atmospheric evolution
  3. Venus' runaway greenhouse effect and implications for Earth's climate evolution?
  4. Nature, period, an atmospheric impact of the global cataclysm that resurfaced Venus?
  5. Atmospheric dynamics, including origin of the superrotation of the Venus atmosphere, possible coupling between Hadley circulation and the hemispheric vortex circulation?

It is anticipated that the workshop will have a number of comprehensive presentations that will assimilate available spacecraft and ground-based observations as constraints to answering some of the major questions about the atmosphere of Venus. Extensive, lively, and appealing poster sessions are being envisioned also. Ample time will be reserved for discussions, with a focus on addressing key unresolved questions with models and future observations including those from approved (JAXA''s Akatsuki), in development (Russian Venera-D, etc.) and yet to be proposed missions to Venus.

The workshop will also present an opportunity for fostering coordination between various international missions to Venus to maximize the science return. The workshop will be followed by the 8th VEXAG meeting on 2 September 2010

Scientific Program Committee (to be completed)

Proceedings of the workshop

Students, and young researchers are encouraged to attend; a limited number of travel grants will be provided. Details will be available at a later date and will be available at the VEXAG website.

Abstracts are invited for both oral and poster presentations. You are requested to indicate your interest in attending the workshop and submit a tentative title of the presentation to facilitate planning on the web.



An Indication of Interest for participating in the workshop is strongly encouraged as soon as possible, by filling out a short form on the VEXAG website. This will greatly help the local and scientific organizing committees.


The deadline for abstract submission is April 30, 2010. Format for the abstracts will be posted on the VEXAG website.


The deadline for hotel reservations is 30 July 2010 after which the block of rooms will be released.


The workshop venue is the Monona Terrace Convention Center in Madison, Wisconsin. Madison is served by many airlines with direct flights to and from fourteen domestic hubs and international gateways. A block of rooms will be available at the adjacent hotel (Hilton) and there are several other hotels within a short walking distance.

The workshop is being organized on behalf of the Venus Exploration Analysis Group (VEXAG) sponsored by NASA. VEXAG provides a forum for the international Venus scientific community to exploit opportunities to maximize our understanding of Venus and its environment through space and ground based observational programs.

Monona Terrace Monona Terrace Monona Terrace

For more information contact:
Sanjay S. Limaye
Space Science and Engineering Center
University of Wisconsin
1225 W. Dayton St., Madison, WI 53706, USA

Sue Smrekar [VEXAG Co-Chair]
Sanjay Limaye [VEXAG Co-Chair]
Adriana Ocampo [NASA HQ]

Last Update: February 10, 2012