“Like raising a family, you can’t treat every child the same way. Because of the places we typically put vineyards, there’s a lot of soil variation. Difference mapping guides growers to appropriate varietal and clonal selections and farming practices. It identifies fruit best handled separately and fruit best blended together.”
Alan Lakso in the December 2010 issue of Sommelier Journal. (See: Vino-Tech: Decoding Terroir One Terabyte at a Time.)