2dRUE is a methodology to make a diagnostic of land condition in a large territory during a given time period. The following projects have funded this package: DeSurvey IP (EC FP6 Integrated Project contract No. 003950), DesertWatch (ESA DUE contract No. 18487/04/I-LG) and MesoTopos (Junta de Andalucia PE ref. RNM-4023).