“…Basic proficiency with Surfer 8@ can occur with a few hours of self-tutoring. Various editions of Surfer 8@ have been applied to modeling and evaluation of groundwater contamination and other environmental data (Konderla and Hawrysz, 1994;Otvos, Pazmandi, and Tuba, 2003;Shan and Stephens, 1994;Vigneresse, 1994;Woodard, Harris, and Breazeale, 1996). Also, reported applications have typically used Surfer 8@ as an interface with other software rather than as a stand-alone analytical tool (Lu and Amter, 1992;Marschallinger, 1991;Yan, Landry, and Tate, 1994).…”