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Fourth Meeting of the Venus Exploration and Analysis Group (VEXAG)

November 4–5, 2007
Greenbelt Marriott Hotel
Greenbelt, MD

Meeting Notes
Powerpoint presentations in PDF format


Sunday afternoon – November 4, 2007

12:30 p.m.
Pick-up Handouts
Coffee and Pastries

1:00 p.m.
Third VEXAG Meeting Overview and Objectives
Sushil Atreya and Janet Luhmann

1:15 p.m.
VEXAG Goals and Objectives Document
Steve Mackwell

1:45 p.m.
Venus Mission Architectures and Technology Developments
Jim Cutts and Tibor Balint

2:00 p.m.
Recap of International Planetary Probes Workshop
Jim Cutts

2:15 p.m.
European Venus Explorer Proposal and ESA's Cosmic Vision Program
Eric Chassefiere

2:30 p.m.
Coffee Break

2:45 p.m.
Education and Public Outreach
Rosalyn Pertzborn

3:00 p.m.
Preview of OPAG Meeting
Sushil Atreya for Fran Bagenal

3:15 p.m.
Special Science Briefing – Venus Express VIRTIS Science Results
Pierre Drossart and Giuseppe Piccioni

3:45 p.m.
Open Mike Presentations (1-2 slides, up to 10 minutes)
Provide your presentation to the projectionist during the coffee break

4:30 p.m.
Planetary Science Summer School Venus Mission Study
Tibor Balint

4:50 p.m.
Preview of Monday’s Activities
Sushil Atreya and Janet Luhmann

5:00 p.m.

Reminder: The U.S. time change from daylight back to standard time ("Fall Back") will occur at 2:00 a.m. on Sunday morning just before this meeting gets underway.

Monday Morning – November 5, 2007

8:30 a.m.
Pick-up Handouts
Coffee and Pastries

9:00 a.m.
NASA Headquarters Perspective on Venus Exploration
Jim Green and Andy Cheng

9:30 a.m.
Status Report: ESA's Venus Express
Hakan Svedhem

9:50 a.m.
JAXA's Venus Climate Orbiter
Masato Nakamura and Takeshi Imamura

10:10 a.m.
NASA’S Discovery Candidate VESPER
Gordon Chin

10:30 a.m.
Coffee Break

10:45 a.m.

Sean Solomon and Hakan Svedhem

11:15 a.m.
Evidence for Past Oceans on Venus
Mark Bullock

12:00 p.m.

Monday Afternoon – November 5, 2007

1:15 p.m.
Preview of NASA Workshop on Planetary Atmospheres
Phil Crane

1:30 p.m.
Venus-Earth Climate Connections (25-minutes each)

Greenhouse Effect and Radiative Balance on Earth and Venus – Dave Crisp
Climate Sensitivity and History of Venus and Earth - Mark Bullock
Aerosols on Earth and Venus - Brian Toon

2:45 p.m.
Coffee Break (15 minutes)

Atmospheric Dynamics of Venus and Earth - Jerry Schubert
Solar History Effects on Venus and Earth Climate - Janet Luhmann for David Brain
Sulfur Isotope Ratios and Constraints on Climate - Alex Pavlov

4:15 p.m.
General discussion - Venus-Earth Climate Connections
Larry Esposito, lead

4:45 p.m.
Next Meeting
Action Items
Sushil Atreya and Janet Luhmann

5:15 p.m.

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