When the second deadliest cyclone on record hit the Irrawaddy Delta in Myanmar in May, it left 134,000 people dead or missing and some 2.4 million stranded without adequate food, shelter or supplies. Using typical Geographic Information Systems, Yuri Gorokhovich, associate professor in the Department of Environmental, Geographic and Geological Sciences at Lehman College, created computer models of the geographic distribution of people affected by Cyclone Nargis.