It might seem difficult to study the climate on Mars from a home office in Martinez, Ga.. But Michael Wolff and a large team of scientists will soon get a much closer look at their subject. Wolff is one of dozens of scientists who will work around the clock for probably three months to get unprecedented data when the Mars Exploration Rovers roam the Red Planet. The Rovers, armed with a pack of five main instruments, are scheduled to launch in May and June 2003 and arrive in January 2004, according to the National Aeronautics and Space Administration.