• Wadi Al-Arj Aquifer Hydrochemical and Vulnerability Assessment, Taif. 2002-2004

  • Wadi Addawasir visit (KACST Agricultural and environmental group April 2004)

  • Najran visit (KACST Agricultural and environmental group May 2005)

  •  Basaltic aquifer Hydrogeological Study, Madinah, 2001-2003

  • Dilaa descent Landslide study, Abha, March 2002